CATALOGUE
A Group brand
A Group brand
REACTIVE ENERGY COMPENSATION
AND POWER QUALITY MONITORING
CATALOGUE
CONTENTS
general information
Long-term energy savings............................................................................................................................................ 4
Phase shift - Energies - Powers.................................................................................................................................... 6
Power factor................................................................................................................................................................... 7
How to calculate the power of capacitors..................................................................................................................... 10
Reactive compensation of asynchronous motors......................................................................................................... 13
Reactive compensation of transformers...................................................................................................................... 14
Installing capacitor banks............................................................................................................................................. 15
Operation, protection and connection of capacitors.................................................................................................... 16
Harmonics...................................................................................................................................................................... 17
low voltage range
Compensation systems.................................................................................................................................................. 22
Protecting capacitors from harmonics......................................................................................................................... 23
ALPIVAR2 capacitors...................................................................................................................................................... 24
ALPIBLOC fixed capacitor banks................................................................................................................................... 28
ALPIMATIC automatic capacitor banks - general characteristics............................................................................... 30
ALPIMATIC racks ........................................................................................................................................................... 31
ALPIMATIC automatic capacitor banks ........................................................................................................................ 33
ALPISTATIC automatic capacitor banks - general characteristics.............................................................................. 36
ALPISTATIC racks........................................................................................................................................................... 38
ALPISTATIC automatic capacitor banks ....................................................................................................................... 40
ALPTEC power factor controllers................................................................................................................................. 43
Detuned reactors........................................................................................................................................................... 44
Protective circuit breakers and connection cables...................................................................................................... 47
Special products and services....................................................................................................................................... 48
A Group brand
Medium voltage capacitors............................................................................................................................................ 52
Electrical characteristics of medium voltage capacitors............................................................................................ 54
Capacitors for induction furnaces................................................................................................................................. 55
Protection devices for medium voltage capacitors...................................................................................................... 56
Installation conditions for medium voltage capacitors............................................................................................... 58
Dimensions and weights of medium voltage capacitors.............................................................................................. 59
Medium voltage capacitor banks.................................................................................................................................. 60
Operating and protection devices................................................................................................................................. 63
Racks and cubicles for capacitor banks........................................................................................................................ 64
1
CONTENTS
medium voltage range
New products
at a glance ...
Every day, in your professionnal life, installation after installation, you will have the
power to contribute to energy saving while installing our solutions for reactive energy
compensation. Hence you are able to help your customer to save energy and reduce
their environmental impact.
2
A Group brand
alptec 2333
carry out a diagnosis of your electricity supply
(See p. 48-49)
> The Alptec 2333 is one of the first devices on the market to
continuously analyse, characterise and record all the electrical values
(powers, voltages, etc.) and anomalies encountered (harmonics,
voltage dips, overvoltages, etc.). These recordings are characterised
in accordance with current standards (EN 50160, IEC 61000-4-30.
etc.). Analyses over long periods (7 days minimum) provide a true,
meaningful picture of your electricity supply.
> Alpes Technologies offers to take over the measurement of
your energy quality. You install the unit and we carry out remote
measurement, performing the analysis and providing you with a
measurement report.
> Please contact us on +33 4 50 64 05 13
alpiStatic
real-time reactive energy compensation
> The increased sophistication of industrial processes as a result of
the arrival of large numbers of receivers that are sensitive to voltage
variations (PLCs, industrial computing) or have ultra-fast cycles
(robots, welding machines, variable speed drives, lifts) entails reactive
energy compensation that is both “soft” and very fast, in order to adapt
to this new generation of receivers.
> Alpistatic has 3 main advantages in comparison with conventional
systems:
1 / No transient currents when capacitors are activated, which could
cause voltage dips
2/ No transient overvoltages when capacitors are deactivated due to
difficulties extinguishing the electric arc on breaking
3/ very short response time of 40 milliseconds max.
(See p.36-42)
enerGy coMpenSation principleS & other ranGeS
General information
See p. 4-19
low voltage energy compensation
See p. 20-49
Medium voltage energy compensation
See p. 50-68
3
general information
long-term energy savings
Alpes Technologies offers a comprehensive range of products and services that contribute to energy
quality. By significantly reducing energy consumption, Alpes Technologies solutions have a positive
environmental impact and are involved in energy efficiency.
more power, less cost
Based around reactive energy compensation, the Alpes Technologies
offer reduces the amount of reactive energy supplied by the source
and improves the power factor of the installation.
Reactive energy compensation has the following advantages:
for all
- No billing of reactive energy
- Reduction of active energy losses in
the cables, given the current carried
in the installation (almost 3%)
- Improvement of the voltage level at
the end of the line
- Increase in the active power
available with the same installation
4
supplies free from
interference
Alpes Technologies offers a complete
range of capacitors with detuned
reactors and harmonic filters.
Harmonics can damage capacitors
and generate resonance on the
supply or cause equipment to
malfunction. Whether in an industrial
or commercial building, Alpes
Technologies products increase the
service life of the installation while
improving its energy performance.
A SERVICE tailored to your
requirements
Alpes Technologies has a team of
experts available to carry out on-site
measurement in order to determine
the most suitable installation,
diagnose the quality of the electricity
supply, and perform monitoring and
maintenance operations for you.
A Group brand
general information
LONG-TERM ENERGY SAVINGS (CONTINUED)
Calculation example
Installation of a 75 kVAr capacitor bank in a 1000 m2 supermarket that wants to reduce its energy bills.
Initial consumption
192 kVA
Alpes Technologies capacitor bank
An Alpes Technologies 75 kVAr capacitor bank
is installed (compensation for a cos ø = 1)
final consumption
168 kVA, i.e. -15%
Saving
192 kVA - 168 kVA = 24 kVA
For a French billing system ("yellow" tariff) this
represents a saving of 1128 €/year(1).
This saving also represents a reduction in pollution of
1.6 T CO2 equivalent/year.
Prices and data not contractual. Calculated according to Environmental
Impact and Management Explorer (EIME) software, Électricité de France
model.
(1)
5
Power factor
general information
Phase shift - Energies - Powers
Definition
An AC electrical installation comprising receivers such
as transformers, motors, welding machines, power
electronics, etc., and in particular any receivers for
which the current is out of phase with the voltage,
consumes a total energy which is called the apparent
energy (Eapp).
U, I
U
ωt
I
• Active energy (Ea): expressed in kilowatt hours (kWh).
This can be used, after being transformed by the
receiver, in the form of work or heat. The active power
P (kW) corresponds to this energy.
• Reactive energy (Er): expressed in kilovar hours
(kVArh). This is used in particular in the windings of
motors and transformers to create the magnetic field
without which they would not be able to operate.
The reactive power Q (kVAr) corresponds to this energy.
Unlike active energy, reactive energy is said to be
"unproductive" for the user.
Energies
Eapp = Ea + Er
Eapp = (Ea)2 + (Er)2
Xc
ø
Powers
This energy, which is generally expressed in
kilovolt-ampere-hours (kVAh), corresponds to the apparent
power S (kVA) and can be broken down as follows:
S=P+Q
S = (P)2 + (Q)2
• Three-phase supply:
S = 3 UI
P = 3 UI Cos ø
Q = 3 UI Sin ø
Eapp (S)
Er (Q)
ø
Ea (P)
6
For a single phase supply the term 3 disappears.
A Group brand
By definition, the power factor, or the Cos ø, of an
electrical device is equal to the active power P (kW)
over the apparent power S (kVA), and can vary from
0 to 1.
cos ø =
P (kW)
S (kVA)
It thus enables the reactive energy consumption level
of devices to be easily identified.
• A power factor of 1 will result in no reactive energy
consumption (resistance)
• A power factor of less than 1 will lead to reactive
energy consumption which increases the closer it is
to 0 (inductance)
In an electrical installation, the power factor could
vary from one workshop to another depending on the
equipment installed and the way it is used (off-load,
full load operation, etc.).
general information
power factor
Calculation of the tg ø
Er (kVArh)
tg ø =
Ea (kWh)
The tg ø is the ratio between the reactive energy
Er (kVArh) and the active energy Ea (kWh) consumed
during the same period.
Unlike the cos ø, it is easy to see that the tg ø must
be as small as possible in order to have the minimum
reactive energy consumption.
Cos ø and tg ø are linked by the following equation:
cos ø =
1
1 + (tg ø)2
But it is simpler to refer to a conversion table as on
page 12.
Energy metering devices record active and reactive
energy consumption. Electricity suppliers generally
show the term tg ø on their bills.
7
Power factor (continued)
general information
power factor of the main receivers
The following receivers consume the
most reactive energy:
- Motors at low load
- Welding machines
- Arc and induction furnaces
- Power rectifiers
RECEIVER
COS ø
TG ø
25%
0.55
1.52
50%
0.73
0.94
75%
0.80
0.75
100%
0.85
0.62
approx. 1
approx. 0
0%
Ordinary asynchronous motors
loaded at
Incandescent lamps
Fluorescent lamps
Discharge lamps
Resistance furnaces
0.17
5.80
approx. 0.5
approx. 1.73
0.4 to 0.6
approx. 2.29 to 1.33
approx. 1
approx. 0
Compensated induction furnaces
approx. 0.85
approx. 0.62
Dielectric heating furnaces
approx. 0.85
approx. 0.62
Resistance welding machines
Single phase static arc welding stations
Arc welding transformers-rectifiers
Arc furnaces
Thyristor power rectifiers
0.8 to 0.9
0.75 to 0.48
approx. 0.5
approx. 1.73
0.7 to 0.9
1.02 to 0.48
0.7 to 0.8
1.02 to 0.75
0.8
0.75
0.4 to 0.8
2.25 to 0.75
advantages of a good power factor
A good power factor is:
- A high cos ø (close to 1)
- Or a low tg ø (close to 0)
8
A good power factor makes it possible to optimise
an electrical installation and provides the following
advantages:
• No billing of reactive energy
• Reduction of the subscribed demand in kVA
• Limitation of active energy losses in the cables given
the decrease in the current carried in the installation
• Improvement of the voltage level at the end of the
line
• Additional power available at the power transformers
if the compensation is performed at the secondary
A Group brand
By installing capacitors or capacitor banks.
Equations
Improving the power factor of an electrical installation
consists of giving it the means to "produce" a certain
proportion of the reactive energy it consumes itself.
Q2 = Q1 - Qc
Qc = Q1 - Q2
Qc = P.tg ø 1 - P.tg ø 2
There are various different systems for producing
reactive energy, including in particular asynchronous
compensators and shunt capacitors (or serial capacitors
for large transmission systems).
ø 1 phase shift without capacitor
ø 2 phase shift with capacitor
The capacitor is most frequently used, given:
- Its non-consumption of active energy
- Its purchase cost
- Its ease of use
- Its service life (approximately 10 years)
- Its low maintenance (static device)
general information
How to improve the power factor
Qc = P(tg ø 1-tg ø 2)
The capacitor is a receiver composed of two conductive
parts (electrodes) separated by an insulator.
When this receiver is subjected to a sinusoidal voltage,
the current and therefore its power (capacitive reactive)
is leading the voltage by 90°.
Conversely, for all other receivers (motors, transformers,
etc.) the current and therefore its power (reactive inductive)
is lagging the voltage by 90°.
Power diagram
The vectorial composition of these currents or reactive
powers (inductive and capacitive) gives a resulting
current or power below the value which existed before
the capacitors were installed.
Qc
P
0
Av
U
ø2
ø1
AR
Q2
S2
In simple terms, it is said that inductive receivers
(motors, transformers, etc.) consume reactive energy
whereas capacitors (capacitive receivers) produce
reactive energy.
Qc
S1
P: Active power
S1 and S2: apparent powers
(before and after compensation)
Qc: capacitor reactive power
Q1: reactive power without capacitor
Q2: reactive power with capacitor
Q1
9
How to calculate the power of capacitors
general information
based on electricity bills
Calculation
To calculate the capacitor banks to be installed, use the
following method:
• Select the month in which the bill is highest (kVArh
to be billed)
• Assess the number of hours the installation operates
each month
• Calculate the capacitor power Qc to be installed
Qc =
10
kVArh to be billed (monthly)
No. of hours' operation
(monthly)
Example
For the subscriber:
• Highest reactive energy bill: December
• Number of kVArh to be billed: 70,000
• Monthly operating times:
high-load + peak times = 350 hours
Qc (bank to be installed) =
70,000
= 200 kVAr
350
based on measurements taken on the HV/LV transformer
secondary: pkW-cos ø
Example
An establishment supplied from an 800 KVA HV/LV
subscriber station wanting to change the power factor
of its installation to:
• Cos ø = 0.928 (tg ø = 0.4) at the primary
• I.e. Cos ø = 0.955 (tg ø = 0.31) at the secondary, with
the following readings:
- Voltage: 400 V 3-phase 50 HZ
- PkW = 475
- Cos (secondary) = 0.75 (i.e. tg ø = 0.88)
Qc (bank to be installed) =
PkW x (tg ø measured - tg ø to be obtained)
Qc = 475 x (0.88 - 0.31) = 270 kVAr
calculation for future installations
In the context of future installations, compensation is
frequently required right from the engineering stage.
In this case, it is not possible to calculate the capacitor
bank using conventional methods (electricity bill).
For this type of installation, it is advisable to install
at least a capacitor bank equal to approximately 25%
of the nominal power of the corresponding HV/LV
transformer.
Example
1000 kva transformer, Q capacitor = 250 kVAr
Note: This type of ratio corresponds to the following
operating conditions:
• 1000 kVA transformer
• Actual transformer load = 75%
• Cos ø of the load = 0.80
}
k = 0.421
• Cos ø to be obtained = 0.95 } (see table on page 12)
Qc = 1000 x 75% x 0.80 x 0.421 = 250 kVAr
11
General information
general
A Group brand
How to calculate the power of capacitors
(continued)
general information
capacitor power calculation table
Conversion table
Based on the power of a receiver in kW, this table can be used to calculate the power of the capacitors to change
from an initial power factor to a required power factor. It also gives the equivalence between cos ø and tg ø.
Final power factor
cosø
0.40
0.41
0.42
0.43
0.44
0.45
0.46
0.47
0.48
0.49
0.50
0.51
0.52
0.53
0.54
0.55
0.56
0.57
0.58
0.59
0.60
0.61
0.62
0.63
0.64
0.65
0.66
0.67
0.68
0.69
0.70
0.71
0.72
0.73
0.74
0.75
0.76
0.77
0.78
0.79
0.80
0.81
0.82
0.83
0.84
0.85
0.86
0.87
0.88
0.89
0.90
tg ø
2.29
2.22
2.16
2.10
2.04
1.98
1.93
1.88
1.83
1.78
1.73
1.69
1.64
1.60
1.56
1.52
1.48
1.44
1.40
1.37
1.33
1.30
1.27
1.23
1.20
1.17
1.14
1.11
1.08
1.05
1.02
0.99
0.96
0.94
0.91
0.88
0.86
0.83
0.80
0.78
0.75
0.72
0.70
0.67
0.65
0.62
0.59
0.57
0.54
0.51
0.48
Capacitor power in kVAr to be installed per kW of load to increase the power factor to:
0.90
0.48
1.805
1.742
1.681
1.624
1.558
1.501
1.446
1.397
1.343
1.297
1.248
1.202
1.160
1.116
1.075
1.035
0.996
0.958
0.921
0.884
0.849
0.815
0.781
0.749
0.716
0.685
0.654
0.624
0.595
0.565
0.536
0.508
0.479
0.452
0.425
0.398
0.371
0.345
0.319
0.292
0.266
0.240
0.214
0.188
0.162
0.136
0.109
0.083
0.054
0.028
0.91
0.46
1.832
1.769
1.709
1.651
1.585
1.532
1.473
1.425
1.730
1.326
1.276
1.230
1.188
1.144
1.103
1.063
1.024
0.986
0.949
0.912
0.878
0.843
0.809
0.777
0.744
0.713
0.682
0.652
0.623
0.593
0.564
0.536
0.507
0.480
0.453
0.426
0.399
0.373
0.347
0.320
0.294
0.268
0.242
0.216
0.190
0.164
0.140
0.114
0.085
0.059
0.031
0.92
0.43
1.861
1.798
1.738
1.680
1.614
1.561
1.502
1.454
1.400
1.355
1.303
1.257
1.215
1.171
1.130
1.090
1.051
1.013
0.976
0.939
0.905
0.870
0.836
0.804
0.771
0.740
0.709
0.679
0.650
0.620
0.591
0.563
0.534
0.507
0.480
0.453
0.426
0.400
0.374
0.347
0.321
0.295
0.269
0.243
0.217
0.191
0.167
0.141
0.112
0.086
0.058
0.93
0.40
1.895
1.831
1.771
1.713
1.647
1.592
1.533
1.485
1.430
1.386
1.337
1.291
1.249
1.205
1.164
1.124
1.085
1.047
1.010
0.973
0.939
0.904
0.870
0.838
0.805
0.774
0.743
0.713
0.684
0.654
0.625
0.597
0.568
0.541
0.514
0.487
0.460
0.434
0.408
0.381
0.355
0.329
0.303
0.277
0.251
0.225
0.198
0.172
0.143
0.117
0.089
0.94
0.36
1.924
1.840
1.800
1.742
1.677
1.626
1.567
1.519
1.464
1.420
1.369
1.323
1.281
1.237
1.196
1.156
1.117
1.079
1.042
1.005
0.971
0.936
0.902
0.870
0.837
0.806
0.775
0.745
0.716
0.686
0.657
0.629
0.600
0.573
0.546
0.519
0.492
0.466
0.440
0.413
0.387
0.361
0.335
0.309
0.283
0.257
0.230
0.204
0.175
0.149
0.121
0.95
0.33
1.959
1.896
1.836
1.778
1.712
1.659
1.600
1.532
1.467
1.453
1.403
1.357
1.315
1.271
1.230
1.190
1.151
1.113
1.073
1.039
1.005
0.970
0.936
0.904
0.871
0.840
0.809
0.779
0.750
0.720
0.691
0.663
0.634
0.607
0.580
0.553
0.526
0.500
0.474
0.447
0.421
0.395
0.369
0.343
0.317
0.291
0.264
0.238
0.209
0.183
0.155
0.96
0.29
1.998
1.935
1.874
1.816
1.751
1.695
1.636
1.588
1.534
1.489
1.441
1.395
1.353
1.309
1.268
1.228
1.189
1.151
1.114
1.077
1.043
1.008
0.974
0.942
0.909
0.878
0.847
0.817
0.788
0.758
0.729
0.701
0.672
0.645
0.618
0.591
0.564
0.538
0.512
0.485
0.459
0.433
0.407
0.381
0.355
0.329
0.301
0.275
0.246
0.230
0.192
0.97
0.25
2.037
1.973
1.913
1.855
1.790
1.737
1.677
1.629
1.575
1.530
1.481
1.435
1.393
1.349
1.308
1.268
1.229
1.191
1.154
1.117
1.083
1.048
1.014
0.982
0.949
0.918
0.887
0.857
0.828
0.798
0.796
0.741
0.721
0.685
0.658
0.631
0.604
0.578
0.552
0.525
0.499
0.473
0.447
0.421
0.395
0.369
0.343
0.317
0.288
0.262
0.234
Example: 200 kW motor - cos ø = 0.75 - required cos ø = 0.93 - Qc = 200 x 0.487 = 98 kVAr
12
0.98
0.20
2.085
2.021
1.961
1.903
1.837
1.784
1.725
1.677
1.623
1.578
1.529
1.483
1.441
1.397
1.356
1.316
1.277
1.239
1.202
1.165
1.131
1.096
1.062
1.030
0.997
0.966
0.935
0.905
0.876
0.840
0.811
0.783
0.754
0.727
0.700
0.673
0.652
0.620
0.594
0.567
0.541
0.515
0.489
0.463
0.437
0.417
0.390
0.364
0.335
0.309
0.281
0.99
0.14
2.146
2.082
2.002
1.964
1.899
1.846
1.786
1.758
1.684
1.639
1.590
1.544
1.502
1.458
1.417
1.377
1.338
1.300
1.263
1.226
1.192
1.157
1.123
1.091
1.058
1.007
0.996
0.966
0.937
0.907
0.878
0.850
0.821
0.794
0.767
0.740
0.713
0.687
0.661
0.634
0.608
0.582
0.556
0.530
0.504
0.478
0.450
0.424
0.395
0.369
0.341
1
0.0
2.288
2.225
2.164
2.107
2.041
1.988
1.929
1.881
1.826
1.782
1.732
1.686
1.644
1.600
1.559
1.519
1.480
1.442
1.405
1.368
1.334
1.299
1.265
1.233
1.200
1.169
1.138
1.108
1.079
1.049
1.020
0.992
0.963
0.936
0.909
0.882
0.855
0.829
0.803
0.776
0.750
0.724
0.698
0.672
0.645
0.602
0.593
0.567
0.538
0.512
0.484
reactive compensation of asynchronous motors
(compensation at motor terminals)
If Qc ≤ 90% Io 3 U
Power supply
C.1
The table below gives, for information purposes
only, the maximum power of the capacitor that
can be connected directly to the terminals of an
asynchronous motor with no risk of self-excitation.
It will be necessary to check in all cases that the
maximum current of the capacitor does not exceed
90% of the magnetising current (off-load) of the motor.
Qc
M
3±
Maximum power of the
motor
HP
kW
If Qc > 90% Io 3 U
Power supply
C1
C2
M
3±
Io: motor off-load current
U: supply voltage
Qc
11
15
20
25
30
40
50
60
100
150
180
218
274
340
380
482
8
11
15
18
22
30
37
45
75
110
132
160
200
250
280
355
Maximum speed rpm
3000
1500
1000
Max. power in kVAr
2
3
4
5
6
7.5
9
11
17
24
31
35
43
52
57
67
2
4
5
7
8
10
11
13
22
29
36
41
47
57
63
76
3
5
6
7.5
9
11
12.5
14
25
33
38
44
53
63
70
86
If the capacitor power required to compensate
the motor is greater than the values given in the
above table or if, more generally: Qc > 90% Io 3 U,
compensation at the motor terminals will however
remain possible by inserting a contactor (C.2),
controlled by an auxiliary contact of the motor
contactor (C.1), in series with the capacitor.
13
general information
A Group brand
How to calculate the power of capacitors
(continued)
general information
reactive compensation of transformers
When defining a reactive energy compensation
installation, it is advisable to provide a fixed
capacitor corresponding to the internal reactive
consumption of the transformer at 75% load.
In order to operate correctly, a transformer requires
internal reactive energy to magnetise its windings.
The table opposite gives, for information purposes
only, the value of the fixed capacitor bank to be
installed according to the powers and loads of the
transformer. These values may change, depending on
the technology of the device. Each manufacturer can
provide their own precise values.
14
Nominal
power of the
transformer
kVA
100
160
200
250
315
400
500
630
800
1000
1250
2000
2500
3150
4000
5000
KVAr power to be provided for the internal
consumption of the transformer
Operation
off-load
75% load
100% load
3
4
4
5
6
8
10
12
20
25
30
50
60
90
160
200
5
7.5
9
11
15
20
25
30
40
50
70
100
150
200
250
300
6
10
12
15
20
25
30
40
55
70
90
150
200
250
320
425
A Group brand
Installing capacitor banks
In an LV electrical installation, capacitor banks can be installed at 3 different levels:
Global installation
M
M
Advantages:
• No billing of reactive energy
• This is the most economical solution, as all the
power is concentrated at one point and the expansion
coefficient makes it possible to optimise the capacitor
banks
• Makes less demands on the transformer
Note:
• The losses in the cables (RI2) are not reduced.
M
M
Sector installation
M
M
Advantages:
• No billing of reactive energy
• Makes less demands on the supply FEEDERS and
reduces the heat losses in these FEEDERS (RI2)
• Incorporates the expansion of each sector
• Makes less demands on the transformer
• Remains economical
M
M
Individual installation
M
M
Note:
• Solution generally used for very widespread factory
supplies
Advantages:
• No billing of reactive energy
• From a technical point of view this is the ideal
solution, as the reactive energy is produced at the point
where it is consumed. Heat losses (RI2) are therefore
reduced in all the lines.
• Makes less demands on the transformer.
M
M
Note:
• Most costly solution, given:
- The high number of installations
- The fact that the expansion coefficient is not
incorporated
15
general information
installation options
Operation, protection and connection of
capacitors
general information
protection and connection of capacitors
Operating device
In the case of loads with ultra-fast cycles (welding
machines, etc.), the conventional system for operating
capacitors (electromechanical contactors) is no longer
suitable. High-speed switching compensation systems
using solid state contactors are necessary. ALPES
TECHNOLOGIES offers this type of equipment.
The switching current of a capacitor depends on:
• The power of the capacitor
• The short-circuit power of the mains supply to which
it is connected
• Whether or not any capacitor banks that have already
been activated are present
Given these parameters, it is essential to use quick
make and break operating devices (switch, contactor,
etc.).
When selecting operating devices, the user must be
made aware of the choice of equipment available (for
operating capacitors).
Contactors are specially designed by contactor
manufacturers for operating capacitors and in
particular for assembling automatically controlled
capacitor banks. These contactors have auxiliary poles
combined in series with preload resistors that will limit
the inrush current during activation.
Protection
In addition to the internal protection devices
incorporated in the capacitor:
- Self-healing metallised film
- Internal fuses
- Overpressure disconnection devices
it is essential to provide a protection device external to
the capacitor.
This protection will be provided by:
• Either a circuit breaker:
- Thermal relay, setting between 1.3 and 1.5 In
- Magnetic relay, setting between 5 and 10 In
• Or GI type HRC fuses, rating 1.4 to 2 In
In = capacitor nominal voltage
In = Qc/ 3U
Example: 50 kVAr - 400 V three-phase
In = 50/1.732 x 0.4 = 72 A
Connection (sizing the cables)
Current standards for capacitors are defined so that
capacitors can withstand a permanent overcurrent of
30%.
These standards also permit a maximum tolerance of
10% on the nominal capacitance.
Cables must therefore the sized at least for:
I cable = 1.3 x 1.1 (I nominal capacitor)
i.e. I cable = 1.43 I nominal
16
A Group brand
Harmonics
In recent years, the modernisation of industrial
processes and the sophistication of electrical machines
and equipment have led to major developments in
power electronics:
Semi-conductor-based systems (transistors, thyristors, etc.) designed for:
• Static power converters: AC/DC
• Rectifiers
• Inverters
• Frequency converters
• And many other multicycle or phase controlled
devices.
These systems represent "non-linear" loads for
electrical supplies. A "non-linear" load is a load for
which the current consumption does not reflect the
supply voltage (although the voltage of the source
imposed on the load is sinusoidal, the current
consumption is not sinusoidal).
Other "non-linear" loads are also present in electrical
installations, in particular:
• Variable impedance loads, using electric arcs: arc
furnaces, welding units, fluorescent tubes, discharge
lamps, etc.
• Loads using strong magnetising currents:
saturated transformers, inductors, etc.
The FOURIER decomposition (harmonic analysis) of the
current consumption of a non-linear receiver shows:
• The fundamental, a sinusoidal term at the 50 Hz
mains supply frequency
• The harmonics, sinusoidal terms whose frequencies
are multiples of the fundamental frequency
According to the equation:
n
Irms = I21 + h∑= 2 I2h
∑ : Sum of all the harmonic currents from harmonic 2 (50 Hz x 2) to the last
harmonic n (50 Hz x n)
These harmonic currents circulate in the source. The
harmonic impedances of the source then give rise to
harmonic voltages, according to the equation:
Uh = Zh x Ih
The harmonic currents give rise to most of the
harmonic voltages causing the overall harmonic
distortion of the supply voltage.
n
Vrms = U21 +h∑= 2 U 2h
Note: The harmonic distortion of the voltage generated by construction
defects in the windings of the alternators and transformers is generally
negligible
17
GENERAL INFORMATION
introduction
Harmonics (continued)
general information
effect of harmonics on capacitors
Sous-Titre
1
Schematic
diagram
Main harmonic currents
Equivalent diagram
Texte courant Texte courant Texte courant Texte
courant Texte courant
Texte courant Texte courant
XLT : SCC (kVA)
Texte courant Texte courant Texte courant Texte
courant Texte courant Texte courant Texte courant
XC Texte
R
XLT courant
Texte courantM Texte courant Texte
XC
±
courant
Q(kvar) Texte courant Texte courant Texte courant
Texte courant Texte courant Texte courant Texte
courant Texte courant Texte courant Texte courant
R
L
Texte courant
The main harmonic currents present in electrical
installations come from semi-conductor based
systems. The theoretical rates of such systems are as
follows:
- Harmonic 5 (250 Hz) - I5 - 20% I1*
- Harmonic 7 (350 Hz) - I7 - 14% I1*
- Harmonic 11 (550 Hz) - I11 - 9% I1*
- Harmonic 13 (650 Hz) - I13 - 8% I1 *
P (kW)
Note: As the inductance of the motor is much higher than that of the source,
it becomes negligible in parallel configuration.
(* I1: Semi-conductor system current at 50 Hz)
Parallel resonance or anti-resonance
between capacitors and source
• Ssc (kVA): Source short-circuit power
• Q (kVAr): Capacitor bank power
• P (kW): Non-interfering load power
XL
Reduction of the reactance of the
capacitors
XLT
Fr.p.
f (Hz)
• The reactance of the source XLT
is proportional to the frequency
• The reactance of the
capacitors XC is inversely
proportional to the frequency
XC
• The capacitor reactance
XL
XC =
f (Hz)
XC
XC
1
C. ω
=
1
C.2.π.f
is inversely proportional to
the frequency, its ability to
cancel out harmonic currents
decreases significantly when
the frequency increases.
• The higher the source short-circuit power (Ssc),
the further the resonance frequency is from
dangerous harmonic frequencies.
• The higher the power (P) of the non-polluting
loads, the lower the harmonic current amplification
factor.
18
XC
At frequency Fr.p., there
is parallel resonance or
anti-resonance (as the two
reactances are equal but
opposite ) and amplification
(F.A.) of the harmonic currents
in the capacitors and in the
source (transformers) where:
Ssc
Fr.p. = F supply
Q
F.A. =
Ssc. Q
P
A Group brand
For supplies with a high level of harmonic pollution,
installing an detuned reactor, tuned in series with the
capacitor, is the only effective protection.
The detuned reactor performs a dual role:
• Increasing the impedance of the capacitor in relation
to the harmonic currents
• Shifting the parallel resonance frequency (Fr.p) of the
source and the capacitor to below the main frequencies
of the harmonic currents that are causing interference
• Fr.p.: Detuned reactor/capacitor/MV/LV transformer
parallel resonance frequency
• Fr.s.: Detuned reactor/capacitor serial resonance
frequency
• The most commonly used F.r.s values are:
- 50 Hz fundamental: 215 Hz (n=4.3)
190 Hz (n=3.8)
135 Hz (n=2.7)
- 60 Hz fundamental: 258 Hz (n=4.3)
228 Hz (n=3.8)
162 Hz (n=2.7)
• For frequencies below Fr.s., the reactor/capacitor
system behaves like a capacitance and compensates
the reactive energy.
• For frequencies above Fr.s., the reactor/capacitor
system behaves like an inductance which, in parallel
with the inductance XLT, prevents any risk of parallel
resonance at frequencies above Fr.s. and in particular
at the main harmonic frequencies.
harmonic filters
For installations subject to a high level of harmonic
pollution, the user may be faced with a dual
requirement:
• To compensate for the reactive energy and protect
the capacitors
• To reduce the harmonic distortion of the voltage to
values that are acceptable and compatible with correct
operation of most sensitive receivers
(PLCs, industrial computers, capacitors, etc.)
For this, ALPES TECHNOLOGIES can offer "passive"
harmonic filters. A "passive" harmonic filter is a
combination of a capacitor and an inductance in series,
for which each tuning frequency corresponds to the
frequency of an unwanted harmonic voltage to be
eliminated.
For this type of installation, ALPES TECHNOLOGIES
offers the following services:
• Analysis of the mains supply on which the equipment
is to be installed, with measurement of harmonic
voltages and currents
• Computer simulation of the compatibility of the harmonic
impedances of the supply and the various filters
• Calculation and definition of the various components
of the filter
• Supply of capacitors, inductances, etc.
• Measurement of the efficiency of the system after
installation on site
19
GENERAL INFORMATION
protecting capacitors using detuned reactors
low voltage
compensation
maiN aDvaNTagES Of THE
lOw vOlTagE raNgE
> alPivar² capacitors are totally dry units that have been coated
under vacuum, with triple electrical protection, for excellent resistance
to overvoltages and partial discharges and a much longer service life
than conventional units.
> The universal mounting ranges of racks are factory-wired and
can be fitted in any type of cabinet to create automatic reactive energy
compensation systems. Reactive power available up to 75 kVAr/step.
20
> alPimaTiC and alPiSTaTiC automatic capacitor banks are
compact solutions, offering a fully modular design, for easy
extension and maintenance and to meet all requirements: standard,
H and SAH (standard class, reinforced and extra-reinforced class
with detuned reactors). The power factor controller ensures easy
commissioning. The Alpistatic range of automatic capacitor banks
also provides real-time compensation.
A Group brand
general information
(See p. 22-23)
Systems and types
of compensation
p. 22
Protecting capacitors from
harmonics
p. 23
Alipvar² capacitors
p. 24-27
Alpibloc fixed capacitor banks
p. 28-29
Alpimatic automatic racks and
capacitor banks
p. 30-35
Alpistatic automatic racks and
capacitor banks
p. 36-42
ALPIVAR² CAPACITORS AND
ALPIBLOC FIXED BANKS
(See p. 24-29)
AUTOMATIC RACKS AND
CAPACITOR BANKS
(See p. 30-42)
OTHER PRODUCTS AND
SERVICES
Detuned reactors
p. 44-46
(See p. 43-49)
Special products and services
p. 48
Power factor controllers
p. 43
Alptec network analysers
p. 49
energy compensation principles & other ranges
General information
See p. 4-19
Medium voltage energy compensation
See p. 50-68
21
Compensation systems
low voltage range
Systems and types of compensation
When selecting a capacitor bank, there are two compensation systems.
Fixed type capacitor banks
Automatic type capacitor banks
.../5A
class 1 - 10 VA
M
3±
M
3±
M
3±
M
3±
• The reactive power supplied by the capacitor bank
is constant irrespective of any variations in the power
factor and the load of the receivers, thus of the reactive
energy consumption of the installation.
• These capacitor banks are switched on:
- Either manually by a circuit breaker or switch
- Or semi-automatically by a remote-controlled
contactor
• This type of capacitor bank is generally used in the
following situations:
- Electrical installations with constant load
operating 24 hours a day
- Reactive compensation of transformers
- Individual compensation of motors
- Installation of a capacitor bank whose power is less
than or equal to 15% of the power of the transformer
Capacitor bank Qc ≤ 15% PkVA transformer
Electromechanical or
solid state contactor
Power factor
controller
• The reactive power supplied by the capacitor bank
can be adjusted according to variations in the power
factor and the load of the receivers, thus of the reactive
energy consumption of the installation.
• These capacitor banks are made up of a combination
of capacitor steps (step = capacitor + contactor)
connected in parallel. Switching on and off of all or
part of the capacitor bank is controlled by an integrated
power factor controller.
• These capacitor banks are also used in the following
situations:
- Variable load electrical installations
- Compensation of main LV distribution boards or
major outgoing lines
- Installation of a capacitor bank whose power is more
than 15% greater than the power of the transformer
Capacitor bank Qc > 15% PkVA transformer
22
A Group brand
By design and in accordance with current standards,
capacitors are capable of continuously withstanding
an rms current equal to 1.3 times the nominal current
defined at the nominal voltage and frequency values.
This overcurrent coefficient has been determined to
take account of the combined effects of the presence of
harmonics and overvoltages (the capacitance variation
parameter being negligible).
It can be seen that depending on the degree of
harmonic pollution SH (power of the harmonic
generators), this coefficient is generally insufficient and
that the parameter Ssc (short-circuit power), directly
related to the power of the source ST, is preponderant
in the value of the parallel resonance frequency (Fr.p).
By combining these two parameters, SH and ST,
three types of mains supply can be defined, with
a corresponding "type" of capacitor to be installed:
Degree of
interference
SH
_______
ST
≤ 15 %
15 % to 25 %
25 % to 35 %
35 % to 50 %
> 50 %
standard
H
SAH
SAHR
FH
SH (kVA) is the weighted total power of the harmonic generators present at the transformer secondary.
ST (kVA) is the power rating of the HV/LV transformer.
23
low voltage range
protecting capacitors from harmonics
ALPIVAR2® capacitors
low voltage range
ALPIVAR2: vacuum technology capacitor
Advantages of the range
Alpivar patented capacitors are totally dry units with
no impregnation, insulation liquid or gas.
2
They are designed by combining individual single phase
windings, connected in a delta configuration,
to produce a three-phase unit.
These windings are created using two polypropylene
films with zinc coating on one side:
• The metal coating forms the electrode
• The polypropylene film forms the insulation
They are then vacuum coated with a self-extinguishing
thermosetting polyurethane resin which forms the
casing, providing mechanical and electrical protection.
This vacuum coating technique for the windings, which
is unique to ALPES TECHNOLOGIES, gives Alpivar2
capacitors excellent resistance over time and a much
longer service life than conventional units.
Vacuum sealing ensures that there is no air or moisture
near the windings. This design provides excellent
resistance to overvoltages and partial discharges.
This unit complies fully with environmental protection
requirements (PCB-free).
24
Presentation
Monobloc or modular, the Alpivar2 capacitor meets all
user requirements.
The modular solution in particular, with its quick, easy
assembly, can be used to create units with different
power ratings, resulting in a significant reduction in
storage costs for integrators and local distributors.
Installation
Its compact form makes it easy to install and
significantly reduces the costs of cabinets and racks.
The casing is particularly resistant to all solvents and
atmospheric agents (rain, sun, salty air, etc.).
The Alpivar2 capacitor is ideal for installations:
- In corrosive atmospheres
- Outdoor use (on request)
A Group brand
low voltage range
ALPIVAR2: connection and protection devices
Connection
• The easy accessibility of the terminals on the top of the
unit make the Alpivar2 capacitor very easy to connect.
• The use of a system of "socket" terminals enables
direct connection of the unit via cables and lugs.
Connection
terminals
Internal
discharge
resistor
• The Alpivar2 double-insulated or class 2 capacitor
does not need earthing.
Electrical protection devices
• Self-healing dielectric: This self-healing property is
connected with the characteristics of the metal deposit
which forms the electrode and the nature of the
insulating support (polypropylene film).
This special manufacturing technique prevents
breakdown of the capacitor due to electrical
overvoltages. In fact overvoltages perforate the
dielectric and cause discharges which vaporise the
metal near the short circuit, thus instantaneously
restoring the electrical insulation.
Self-healing coil
Self-extinguishing
polyurethane resin
vacuum coating
• Internal fuses: One per winding.
• Pressure monitoring devices: If an electrical fault
cannot be overcome by the film self-healing or by
means of the electric fuse, gas is emitted, causing
a membrane to deform and disconnecting the faulty
winding. The triggering of the pressure monitoring
devices is visible from outside the capacitor. This
feature makes it easy to carry out a quick check on the
status of the unit.
These three protection devices, together with the
vacuum coating of the windings (technique patented by
ALPES TECHNOLOGIES), result in a very high-tech unit.
Self-extinguishing
plastic casing
Overpressure
disconnection
device with visible
trip indication
Electric fuse
25
Alpivar2 capacitors
400 V network
V7540CB
Technical characteristics (p. 27)
Double or class II insulation. Totally dry
Self-extinguishing polyurethane resin casing. Internal protection for each winding using:
- A self-healing metallised polypropylene film
- An electric fuse
- A disconnection device in case of overpressure
Colour: C
asing RAL 7035
Cover RAL 7001
Conforming to standards EN and IEC 60831-1 and 2
Pack
Cat.Nos
Standard type three-phase
400 V - 50 Hz
Pack
Cat.Nos
Capacitor combined with an detuned
reactor
Assembly fitted and wired in IP 31 - IK 05
cabinet
Conforming to standards EN and
IEC 60831-1 and 2
Standard class - Max. 470 V
470 V max.
Harmonic pollution SH/ST ≤ 15%
V2.540CB
V540CB
V7.540CB
V1040CB
V12.540CB
V1540CB
V2040CB
V2540CB
V3040CB
V3540CB
V4040CB
V5040CB
V6040CB
V7540CB
V9040CB
V10040CB
V12540CB
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Nominal power (kVAr)
2.5
5
7.5
10
12.5
15
20
25
30
35
40
50
60
75
90
100
125
H type three-phase 400 V - 50 Hz
520 V max.
Harmonic pollution 15% < SH/ST ≤ 25%
Can be associated with 7% detuned
reactors
VH2.540CB
VH540CB
VH7.540CB
VH1040CB
VH12.540CB
VH1540CB
VH2040CB
VH2540CB
VH3040CB
VH3540CB
VH4040CB
VH5040CB
VH6040CB
VH7540CB
VH8040CB
VH9040CB
VH10040CB
VH12540CB
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
26
Harmonic pollution 25% < SH/ST ≤ 35%
1
1
1
1
1
1
1
VS5040.189
VS7540.189
VS10040.189
VS15040.189
VS20040.189
VS25040.189
VS30040.189
Nominal power (kVAr)
50
75
100
150
200
250
300
Reinforced class - Max. 520 V
Harmonic pollution 35% < SH/ST ≤ 50%
1
1
1
1
1
1
1
VS.R4040.189
VS.R8040.189
VS.R12040.189
VS.R16040.189
VS.R20040.189
VS.R24040.189
VS.R28040.189
Nominal power (kVAr)
40
80
120
160
200
240
280
Extra-reinforced class - Max. 620 V
Nominal power (kVAr)
2.5
5
7.5
10
12.5
15
20
25
30
35
40
50
60
75
80
90
100
125
SAH type three-phase 400 V - 50 Hz
Harmonic pollution SH/ST > 50%
1
1
1
1
VS.RS7240.189
VS.RS14440.189
VS.RS21640.189
VS.RS28840.189
Nominal power (kVAr)
72
144
216
288
A Group brand
Alpivar2 capacitors
n Dimensions (continued)
n Technical specifications
Discharge resistors
Fitted inside (except by special request), these discharge the unit in
accordance with current standards (discharge time, 3 minutes)
Loss factor
Alpivar2 capacitors have a loss factor of less than 0.1 x 10-3
This value leads to a power consumption of less than 0.3 W per kVAr,
including the discharge resistors.
Capacitance
Tolerance on the capacitance value: + 5%
Our manufacturing process, which avoids any inclusion of air in the coils,
ensures excellent stability of the capacitance throughout the service life
of the Alpivar2 capacitor.
Max. permissible voltage: 1.18 Un rated
Max. permissible current:
• Standard type: 1.3 In
• H type: 1.5 In
Insulation class
• Withstand at 50 Hz for 1 min: 6 kV
• 1.2/50 μs impulse withstand: 25 kV
Standards
Alpivar2 capacitors comply with:
• French standard: NF C 54 108 and 109
• European standard: EN 60831-1 and 2
• International standard: IEC 60831-1 and 2
• Canadian standard: CSA 22-2 No. 190
• End of life performance tests performed successfully in EDF and LCIE
laboratories
Temperature class
Alpivar2 capacitors are designed for a standard temperature class
-25/+55°C
• Maximum temperature: 55°C
• Average over 24 hours: 45°C
• Annual average: 35°C
• Other temperature classes on request
n Dimensions
Standard type / H type - Three-phase
Connection
terminals
Connection cable
entry
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
VS5040.189
1400
600
500
120
VS7540.189
1400
600
500
140
VS10040.189
1400
600
500
160
VS15040.189
1400
600
500
180
VS20040.189
1900
800
500
250
VS25040.189
1900
800
500
275
VS30040.189
1900
800
500
300
Cat.Nos
SAH type reinforced class - Three-phase
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
VS.R4040.189
1400
600
500
120
VS.R8040.189
1400
600
500
150
VS.R12040.189
1400
600
500
180
VS.R16040.189
1900
800
500
220
VS.R20040.189
1900
800
500
260
VS.R24040.189
1900
800
500
280
VS.R28040.189
1900
800
500
300
Cat.Nos
SAH type extra-reinforced class - Three-phase
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
VS.RS7240.189
2100
1000
600
180
VS.RS14440.189
2100
1000
600
250
VS.RS21640.189
2100
1000
600
320
VS.RS28840.189
2100
1000
600
380
Cat.Nos
4 fixing holes
Ø6.5
Capacitor
208
225
Internal discharge
resistor
220
275
55
Terminal
cover
SAH type standard class - Three-phase
W2
W1
Standard type
H type
Dimensions (mm)
W1
W2
H
Weight (kg)
V2.540CB
VH2.540CB
90
70
275
3.5
V540CB
VH540CB
90
70
275
3.5
V7.540CB
VH7.540CB
90
70
275
3.5
V1040CB
VH1040CB
90
70
275
3.5
V12.540CB
VH12.540CB
90
70
275
3.5
V1540CB
VH1540CB
90
70
275
3.5
V2040CB
VH2040CB
90
70
275
3.5
V2540CB
VH2540CB
90
70
275
3.5
V3040CB
VH3040CB
180
156
275
7
V3540CB
VH3540CB
180
156
275
7
V4040CB
VH4040CB
180
156
275
7
V5040CB
VH5040CB
180
156
275
7
V6040CB
VH6040CB
270
244
275
10.5
V7540CB
VH7540CB
270
244
275
10.5
VH8040CB
360
332
275
14
V9040CB
VH9040CB
360
332
275
14
V10040CB
VH10040CB
360
332
275
14
V12540CB
VH12540CB
450
419
275
17.5
27
Alpibloc fixed capacitor banks
400 V network
B6040
Dimensions (p. 29)
Alpibloc is an Alpivar 2 capacitor with built-in circuit breaker
Assembly fitted and wired in an IP 31 - IK 05 box or cabinet
Equipment supplied ready for connection, for fixed compensation of low and medium power electrical devices
For certain applications (remote control, etc.) the circuit breaker can be replaced by a contactor and HRC fuses
Conforming to standards EN and IEC 60831-1 and 2
Pack
Cat.Nos
Standard type three-phase
400 V - 50 Hz
Pack
Cat.Nos
Alpivar 2 capacitor combined with an
detuned reactor and a circuit breaker
Assembly fitted and wired in IP 31 - IK 05
cabinet
Conforming to standards EN and
IEC 60831-1 and 2
Standard class - Max. 470 V
Harmonic pollution 25% < SH/ST ≤ 35%
470 V max.
Harmonic pollution 15% ≤ SH/ST
1
1
1
1
1
1
1
1
1
1
1
1
1
1
B1040
B1540
B2040
B2540
B3040
B4040
B5040
B6040
B7540
B9040
B10040
B12540
B15040
B17540
Nominal power (kVAr)
10
15
20
25
30
40
50
60
75
90
100
125
150
175
Circuit breaker Isc (kA)
10
10
10
10
10
16
16
16
25
36
36
36
36
36
H type three-phase 400 V - 50 Hz
520 V max.
Harmonic pollution 15% < SH/ST ≤ 25%
1
1
1
1
1
1
1
1
1
1
1
1
1
1
28
bh1040
bh1540
bh2040
bh2540
BH3040
BH4040
BH5040
BH6040
BH7540
BH9040
BH10040
BH12540
BH15040
BH17540
Nominal power (kVAr)
10
15
20
25
30
40
50
60
75
90
100
125
150
175
Circuit breaker Isc (kA)
10
10
10
10
10
16
16
16
25
36
36
36
36
36
SAH type three-phase 400 V - 50 Hz
1
1
1
1
1
1
1
BS5040.189
BS7540.189
BS10040.189
BS15040.189
BS20040.189
BS25040.189
BS30040.189
Nominal power (kVAr)
50
75
100
150
200
250
300
Circuit breaker Isc (kA)
16
25
36
36
36
36
36
Reinforced class - Max. 520 V
Harmonic pollution 35% < SH/ST ≤ 50%
1
1
1
1
1
1
1
BS.R4040.189
BS.R8040.189
BS.R12040.189
BS.R16040.189
BS.R20040.189
BS.R24040.189
BS.R28040.189
Nominal power (kVAr)
40
80
120
160
200
240
280
Circuit breaker Isc (kA)
16
25
36
36
36
36
36
Extra-reinforced class - Max. 620 V
Harmonic pollution SH/ST > 50%
1
1
1
1
BS.RS7240.189
BS.RS14440.189
BS.RS21640.189
BS.RS28840.189
Nominal power (kVAr)
72
144
216
288
Circuit breaker Isc (kA)
25
36
36
50
A Group brand
Alpibloc fixed capacitor banks
n Dimensions
n Dimensions (continued)
Standard type - Three-phase
SAH type standard class - Three-phase
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
B1040
380
190
230
5
B1540
380
190
230
B2040
380
190
230
B2540
380
190
B3040
380
365
Cat.Nos
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
BS5040.189
1400
600
500
125
5
BS7540.189
1400
600
500
145
5
BS10040.189
1400
600
500
165
230
7.5
BS15040.189
1900
600
500
190
230
10
BS20040.189
1900
800
500
260
Cat.Nos
B4040
380
365
230
10
BS25040.189
1900
800
500
285
B5040
380
365
230
12.5
BS30040.189
1900
800
500
320
B6040
380
365
230
15
B7540
380
365
230
15
B9040
380
550
230
75
B10040
380
550
230
75
B12540
380
550
230
85
B15040
1000
350
500
B17540
1000
350
500
Dimensions (mm)
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
BS.R4040.189
1400
600
500
125
100
BS.R8040.189
1400
600
500
155
125
BS.R12040.189
1900
600
500
200
BS.R16040.189
1900
800
500
230
BS.R20040.189
1900
800
500
270
BS.R24040.189
1900
800
500
290
BS.R28040.189
2100
800
500
350
H type - Three-phase
Height
Width
Depth
Weight
(kg)
BH1040
380
190
230
5
BH1540
380
190
230
5
BH2040
380
190
230
5
BH2540
380
190
230
7.5
Cat.Nos
SAH type reinforced class - Three-phase
Cat.Nos
SAH type extra-reinforced class - Three-phase
Cat.Nos
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
BH3040
380
365
230
10
BS.RS7240.189
2100
1000
600
185
BH4040
380
365
230
10
BS.RS14440.189
2100
1000
600
255
BH5040
380
365
230
12.5
BS.RS21640.189
2100
1000
600
325
BS.RS28840.189
2100
1000
600
385
BH6040
380
365
230
15
BH7540
380
365
230
15
BH9040
1000
350
500
75
BH10040
1000
350
500
75
BH12540
1000
350
500
85
BH15040
1000
350
500
100
BH17540
1000
350
500
125
29
Alpimatic automatic capacitor banks
Alpimatic capacitor banks
general characteristics
ALPIMATIC capacitor banks are automatic banks with switching
via electromechanical contactors
These banks consist of racks:
- Standard and H types for M series
- SAH type for MS series
These are controlled by a power factor controller and integrated
in a cabinet
• IP 31 - IK 05 box or cabinet
• Protection of live parts against direct contact: IP 2X
• Temperature class:
- Operation -10/+45°C (average over 24 hours : 40°C)
- Storage -30/+60°C
• Ventilation: natural or forced (SAH type)
• Colour: grey cabinet (RAL 7035), black base
• Standards: EN 60439-1
IEC 60439-1 and 2
p. 33-35
specific characteristics
• Fully modular design for easy extension and maintenance
• Power factor controller with easy commissioning
• Extendable cabinet on request
• Cable entry via the bottom or the top
(on request)
electrical characteristics
• Insulation class: 0.66 kV (tested at 2.5 kV, 50 Hz for 1 minute)
• Built-in power supply for auxiliary circuits
• Integrated connector block for load shedding contact (generator
set, specific electricity tariffs, etc.)
• Possible remote alarm feedback
options
• Protective circuit breaker fitted - wired
• Fixed step
• Summing current transformer
connection
The following is required:
• Power cables in accordance with table on page 47
• A current transformer to be positioned on phase L1 of the
installation upstream all the receivers and the capacitor bank
- Primary: according to the installation
- Secondary: 5A
- Power: 10 VA (recommended) - Class 1
Note: This transformer can be supplied separately on request
30
A Group brand
Alpimatic racks
Alpimatic racks
400 V network
n Technical specifications
Loss factor
Standard and H type Alpimatic racks have a loss factor of 2 W/kVAr,
while that of SAH type racks is 6 W/kVAr
Standards
• International standard: IEC 60439-1
• European standard: EN 60439-2
Temperature class
• Operation: -10 to +45°C (average over 24 hours: 40°C)
• Storage: -30 to +60°C
n Dimensions
P7540
Joining bars
160
225
Fixing holes Ø7
248
Factory connected units for integration in universal cabinets for
automatic compensation systems
Standard and H versions:
- 1 Alpivar 2 capacitor
- 1 contactor suitable for the capacitive currents
- 1 set of 3 HRC fuses
- 1 set of modular copper busbars with junction bars for connecting
several racks
- 1 steel frame on which the components are assembled and wired
240
565
580
400
Pack
Cat.Nos
Standard type three-phase
400 V - 50 Hz
Standard type
470 V max.
Harmonic pollution SH/ST ≤ 15%
1
1
1
1
1
1
1
P12.540
P12.512.540
P2540
P252540
P255040
P5040
P7540
Nominal power (kVAr)
12.5
12.5+12.5
25
25+25
25+50
50
75
H type
Weight
(kg)
P12.540
P12.512.540
P2540
P252540
P255040
P5040
P7540
6
11
9
16
22
16
22
Weight
(kg)
PH12.540
PH12.512.540
PH2540
PH252540
PH255040
PH5040
PH7540
7
14
10
17
23
17
23
H type three-phase 400 V - 50 Hz
520 V max.
Harmonic pollution 15% < SH/ST ≤ 25%
1
1
1
1
1
1
1
PH12.540
PH12.512.540
PH2540
PH252540
PH255040
PH5040
PH7540
Nominal power (kVAr)
12.5
12.5+12.5
25
25+25
25+50
50
75
31
Alpimatic racks
with detuned reactors
400 V network
Alpimatic racks
with detuned reactors
n Dimensions
325
Joining bars
325
Joining bars
Pack
Cat.Nos
Type R7
468
665
500
700
Standard class
Reinforced class
Weight
(kg)
R5.2540.189
R5.5040.189
R7.5040.189
R7.7540.189
Weight
(kg)
R5.R4040.189
R7.R4040.189
R7.R404040.189
R7.R8040.189
45
50
55
60
50
52
65
65
SAH type three-phase 400 V - 50 Hz
Joining bars
Standard class - Max. 470 V
Harmonic pollution 25% < SH/ST ≤ 35%
Nominal power (kVAr)
400
R5.2540.189
R5.5040.189
R7.5040.189
R7.7540.189
25
50
50
75
Reinforced class - Max. 520 V
Harmonic pollution 35% < SH/ST ≤ 50%
Extra-reinforced class - Max. 620 V
Harmonic pollution SH/ST > 50%
1
R9.RS7240.189
Fixing holes 24 x 8.2
Nominal power (kVAr)
40
40
40+40
80
Type R9
425
R5.R4040.189
R7.R4040.189
R7.R404040.189
R7.R8040.189
558
1
1
1
1
Nominal power (kVAr)
72
865
900
Extra-reinforced class
Weight
(kg)
R9.RS7240.189
32
80
Fixing holes Ø 8.2
1
1
1
1
Fixing holes Ø8.2
Factory connected units for integration in universal cabinets for
automatic compensation systems
SAH versions (detuned reactors):
- 1 Alpivar 2 capacitor
- 1 contactor suitable for the capacitive currents
- 1 detuned reactor with thermal protection
- 1 set of 3 HRC fuses
- 1 set of modular copper busbars with junction bars for connecting
several racks
- 1 steel frame on which the components are assembled and wired
Type R5
458
425
R7.R8040.189
Fixing holes 24 x 8.2
Fixing holes Ø7
458
425
Fixing holes 21 x 7
A Group brand
Alpimatic automatic capacitor banks
400 V network
M6040
M20040
Dimensions (p. 35)
IP 31 - IK 05 cabinet
Fully modular design for easy extension and maintenance
Alpimatic is made up of one or several cabinets according to the capacitor bank model and the nominal current
The electromechanical contactors are controlled by the Alptec power controller with a simple commissioning procedure
Cable entry at the bottom (at the top on request)
Electrical parts protected against direct contact: IP 2 X (door open)
Grey cabinet (RAL 7035) with black base Conforming to standards IEC 60439-1 and 2 and EN 60439-1
Pack
Cat.Nos
Standard type three-phase
400 V - 50 Hz
Pack
H type three-phase 400 V - 50 Hz
Cat.Nos
520 V max.
470 V max.
Harmonic pollution 15% < SH/ST ≤ 25%
Harmonic pollution SH/ST ≤ 15%
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
M1040
M1540
M2040
M2540
M3040
M3540
M4040
M5040
M6040
M7540
M87.540
M10040
M12540
M15040
M17540
M20040
M22540
M25040
M27540
M30040
M35040
M40040
M45040
M50040
M55040
M60040
M67540
M75040
M82540
M90040
Nominal power (kVAr)
10
15
20
25
30
35
40
50
60
75
87.5
100
125
150
175
200
225
250
275
300
350
400
450
500
550
600
675
750
825
900
Steps (kVAr)
2x5
5+10
2x10
10+15
3x10
5+10+20
2x10+20
10+15+25
3x20
3x25
12.5+25+50
2x25+50
25+2x50
25+50+75
2x25+50+75
50+2x75
25+50+2x75
2x50+2x75
25+2x50+2x75
25+50+3x75
50+4x75
2x50+4x75
6x75
50+6x75
2x50+6x75
8x75
9x75
10x75
11x75
12x75
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MH1040
MH1540
MH2040
MH2540
MH3040
MH3540
MH4040
MH5040
MH6040
MH7540
MH87.540
MH10040
MH12540
MH15040
MH17540
MH20040
MH22540
MH25040
MH27540
MH30040
MH35040
MH40040
MH45040
MH50040
MH55040
MH60040
MH67540
MH75040
MH82540
MH90040
Nominal power (kVAr)
10
15
20
25
30
35
40
50
60
75
87.5
100
125
150
175
200
225
250
275
300
350
400
450
500
550
600
675
750
825
900
Steps (kVAr)
2x5
5+10
2x10
10+15
3x10
5+10+20
2x10+20
10+15+25
3x20
3x25
12.5+25+50
2x25+50
25+2x50
25+50+75
2x25+50+75
50+2x75
25+50+2x75
2x50+2x75
25+2x50+2x75
25+50+3x75
50+4x75
2x50+4x75
6x75
50+6x75
2x50+6x75
8x75
9x75
10x75
11x75
12x75
Other powers, voltages, frequencies
on request, please consult us
33
Alpimatic automatic capacitor banks (continued)
400 V network
MS30040.189
Pack
MS.R40040.189
Cat.Nos
MS.R28040.215
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MS7540.189
MS10040.189
MS12540.189
MS15040.189
MS20040.189
MS22540.189
MS25040.189
MS27540.189
MS30040.189
MS35040.189
MS37540.189
MS45040.189
MS52540.189
MS60040.189
MS67540.189
MS75040.189
SAH type three-phase
400 V - 50 Hz
Pack
SAH type three-phase
400 V - 50 Hz (continued)
Cat.Nos
Standard class - Max. 470 V
Extra-reinforced class - Max. 620 V
Harmonic pollution 25% < SH/ST ≤ 35%
Harmonic pollution SH/ST > 50%
Nominal power (kVAr)
Steps (kVAr)
75
25+50
100
2x25+50
125
25+2x50
150
3x50
200
50+2x75
225
3x75
250
2x50+2x75
275
50+3x75
300
4x75
350
50+4x75
375
5x75
450
6x75
525
7x75
600
8x75
675
9x75
750
10x75
Reinforced class - Max. 520 V
1
1
1
1
1
1
1
1
1
1
1
MS.RS14440.189
MS.RS21640.189
MS.RS28840.189
MS.RS36040.189
MS.RS43240.189
MS.RS50440.189
MS.RS57640.189
MS.RS64840.189
MS.RS72040.189
MS.RS79240.189
MS.RS86440.189
Nominal power (kVAr)
144
216
288
360
432
504
576
648
720
792
864
Steps (kVAr)
2x72
3x72
4x72
5x72
6x72
7x72
8x72
9x72
10x72
11x72
12x72
Harmonic pollution 35% < SH/ST ≤ 50%
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MS.R12040.189
MS.R16040.189
MS.R20040.189
MS.R24040.189
MS.R28040.189
MS.R32040.189
MS.R36040.189
MS.R40040.189
MS.R44040.189
MS.R48040.189
MS.R52040.189
MS.R56040.189
MS.R60040.189
MS.R64040.189
MS.R72040.189
MS.R80040.189
Nominal power (kVAr)
120
160
200
240
280
320
360
400
440
480
520
560
600
640
720
800
Steps (kVAr)
3x40
2x40+80
40+2x80
2x40+2x80
40+3x80
4x80
40+4x80
5x80
40+5x80
6x80
40+6x80
7x80
40+7x80
8x80
9x80
10x80
Other powers, voltages, frequencies
on request, please consult us
34
A Group brand
Alpimatic automatic capacitor banks
400 V network
n Dimensions
n Dimensions
Standard type - Three-phase
Cat.Nos
M1040
M1540
M2040
M2540
M3040
M3540
M4040
M5040
M6040
M7540
M87.540
M10040
M12540
M15040
M17540
M20040
M22540
M25040
M27540
M30040
M35040
M40040
M45040
M50040
M55040
M60040
M67540
M75040
M82540
M90040
SAH type standard class - Three-phase
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
650
650
650
650
650
650
650
650
770
770
1000
1000
1000
1400
1400
1400
1400
1400
1400
1400
1900
1900
1900
1400
1400
1400
1900
1900
1900
1900
260
260
260
260
260
260
260
260
260
260
350
350
350
600
600
600
600
600
600
600
600
600
600
1200
1200
1200
1200
1200
1200
1200
320
320
320
320
320
320
320
320
320
320
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
40
40
40
40
45
45
45
45
50
75
80
80
90
125
140
150
160
170
190
200
260
290
300
370
400
430
490
500
540
560
H type - Three-phase
Cat.Nos
MH1040
MH1540
MH2040
MH2540
MH3040
MH3540
MH4040
MH5040
MH6040
MH7540
MH87.540
MH10040
MH12540
MH15040
MH17540
MH20040
MH22540
MH25040
MH27540
MH30040
MH35040
MH40040
MH45040
MH50040
MH55040
MH60040
MH67540
MH75040
MH82540
MH 90040
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
650
650
650
650
650
650
650
650
770
770
1000
1000
1000
1400
1400
1400
1400
1400
1400
1400
1900
1900
1900
1400
1400
1400
1900
1900
1900
1900
260
260
260
260
260
260
260
260
260
260
350
350
350
600
600
600
600
600
600
600
600
600
600
1200
1200
1200
1200
1200
1200
1200
320
320
320
320
320
320
320
320
320
320
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
40
40
40
40
45
45
45
45
50
75
80
80
90
125
140
150
160
170
190
200
260
290
300
310
370
420
450
500
550
600
Cat.Nos
MS7540.189
MS10040.189
MS12540.189
MS15040.189
MS20040.189
MS22540.189
MS25040.189
MS27540.189
MS30040.189
MS35040.189
MS37540.189
MS45040.189
MS52540.189
MS60040.189
MS67540.189
MS75040.189
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
1400
1400
1400
1400
1900
1900
1900
1900
1900
2100
2100
1900
1900
1900
2100
2100
600
600
600
600
800
800
800
800
800
800
800
1600
1600
1600
1600
1600
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
180
230
250
300
340
360
380
400
420
460
470
600
630
730
800
860
SAH type reinforced class - Three-phase
Cat.Nos
MS.R12040.189
MS.R16040.189
MS.R20040.189
MS.R24040.189
MS.R28040.189
MS.R32040.189
MS.R36040.189
MS.R40040.189
MS.R44040.189
MS.R48040.189
MS.R52040.189
MS.R56040.189
MS.R60040.189
MS.R64040.189
MS.R72040.189
MS.R80040.189
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
1400
1900
1900
1900
1900
1900
2100
2100
1900
1900
1900
1900
1900
1900
2100
2100
600
800
800
800
800
800
800
800
1600
1600
1600
1600
1600
1600
1600
1600
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
250
300
340
370
400
430
470
520
600
630
670
700
750
800
860
920
SAH type extra-reinforced class - Three-phase
Cat.Nos
MS.RS14440.189
MS.RS21640.189
MS.RS28840.189
MS.RS36040.189
MS.RS43240.189
MS.RS50440.189
MS.RS57640.189
MS.RS64840.189
MS.RS72040.189
MS.RS79240.189
MS.RS86440.189
Dimensions (mm)
Height
Width
Depth
Weight
(kg)
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
2100
1000
1000
1000
2000
2000
2000
2000
3000
3000
3000
3000
600
600
600
600
600
600
600
600
600
600
600
300
380
460
600
680
760
820
950
1130
1200
1260
35
Alpistatic automatic capacitor banks
general characteristics
Alpistatic capacitor banks are automatic banks with switching via
solid state contactors
They provide "soft, fast" reactive energy compensation suitable
for receivers that are sensitive to voltage variations (PLCs,
industrial computers) or that have ultra-fast cycles (robots, welding
machines, speed drives)
These banks consist of:
• The capacitor part, subdivided into a number of steps depending
on the power rating of the capacitor
• One three-pole solid state contactor per step
(with switching off all three phases)
• Cooling of each solid state contactor by fan-cooled heat sink
• Standard and H type: 3 single phase damping reactors
protecting the solid state contactor
• SAH type: 1 three-phase detuned reactor protecting the solid
state contactor and providing protection against harmonics
• One set of 3 HRC fuses per step
• A system for controlling the solid state contactors, comprising:
* A reactive energy controller for automatic control:
- With automatic-manual operation
- Front panel display showing the number of steps in operation and the cos ø of the installation
- Display of a number of other electrical parameters
(harmonics, etc.)
* One microprocessor instrumentation and control board per
solid state contactor, used to:
- Activate and deactivate the solid state contactors in 40 milliseconds max.
- Prevent all transient voltage and current phenomena
when activating and deactivating the steps
• IP 31 - IK 05 cabinet
• Protection of live parts against direct contact: IP 2X
• Temperature class:
- Operation –10/+ 45°C (average over 24 hours: 40°C)
- Storage – 30/+ 60 °C
• Ventilation: forced
• Cable entry via the bottom (or via the top on request)
electrical characteristics
• Insulation class: 0.66 kV (tested at 2.5 kV, 50 Hz for 1 minute)
• Built-in power supply for auxiliary circuits
• Connector block for built-in load-shedding contact
36
options
• Protective circuit breaker fitted - wired
• Fixed step
• Summing current transformer
A Group brand
Alpistatic automatic capacitor banks (continued)
connection
The following is required:
• Power cables in accordance with table on page 47
• A current transformer to be positioned on phase L3 of the installation upstream of all the receivers and the capacitor bank:
- Primary: according to the installation
- Secondary: 5 A
- Power: 10 VA (recommended) – class 1
Note: This transformer can be supplied separately on request
THE ADVANTAGES OF ALPISTATIC AUTOMATIC CAPACITOR BANKS COMPARED TO A CONVENTIONAL SYSTEM
Comparison criteria
Banks with electromechanical contactors
Sensitive data
Alpistatic
Conventional system
Presence of electromechanical contactors
No
Yes
Wear of moving parts
No
Yes
Contact bounce phenomenon
No
Possible
Contact fatigue
None
High
Transient overcurrents on activation and
deactivation of steps
No
Yes (may exceed 200 ln)
Transient overvoltages
None
Yes (up to 100%)
Compatibility (PLCs, computer equipment,
etc.)
Excellent
Average
Compatibility (welding machines,
generator sets, etc.)
Excellent
Poor
Activation and deactivation response time
40 milliseconds max.
Approx. 30 seconds
Number of operations
Unlimited
Limited (electromechanical contactor)
Sound level during operation
None
Low (electromechanical contactor)
Reduction of FLICKER
Yes (for highly inductive loads)
No
Creation of harmonics
No
No
37
Alpistatic racks
Alpistatic racks
400 V network
n Dimensions
325
Joining bars
458
425
RST7.5040
Type R7
Factory connected units for integration in universal cabinets for
automatic compensation systems
Comprise:
- 1 Alpivar 2 capacitor
- 1 solid state contactor
- 1 set of 3 HRC fuses
- 1 set of modular copper busbars with junction bars for connecting
several racks
- 1 steel frame on which the components are assembled and wired
Pack
Cat.Nos
Fixing holes Ø8.2
Fixing holes 24 x 8.2
665
700
400
Joining bars
Standard type three-phase
400 V - 50 Hz
470 V max.
Harmonic pollution SH/ST ≤ 15%
Nominal power (kVAr)
H type three-phase 400 V - 50 Hz
Fixing holes Ø 8.2
Fixing holes 24 x 8.2
25
50
75
100
125
425
RST7.2540
RST7.5040
RST7.7540
RST7.10040
RST9.12540
558
1
1
1
1
1
Type R9
520 V max.
Harmonic pollution 15% < SH/ST ≤ 25%
1
1
1
1
38
RST7.H2540
RST7.H5040
RST7.H7540
RST7.H10040
RST9.H12540
Nominal power (kVAr)
25
50
75
100
125
865
900
Standard type
Weight
(kg)
H type
Weight
(kg)
RST7.2540
RST7.5040
RST7.7540
RST7.10040
RST9.12540
45
50
55
60
65
RST7.H2540
RST7.H5040
RST7.H7540
RST7.H10040
RST9.H12540
50
55
60
65
70
A Group brand
Alpistatic racks (continued)
400 V network
Alpistatic racks
n Dimensions
325
Joining bars
RST7.2540.189
Factory connected units for integration in universal cabinets for
automatic compensation systems
Comprise:
- 1 Alpivar 2 capacitor
- 1 solid state contactor
- 1 detuned reactor
- 1 set of 3 HRC fuses
- 1 set of modular copper busbars with junction bars for connecting
several racks
- 1 steel frame on which the components are assembled and wired
Pack
Cat.Nos
Fixing holes Ø8.2
458
425
Fixing holes 24 x 8.2
Type R7
665
700
SAH type three-phase 400 V - 50 Hz
Standard class
Weight
(kg)
Reinforced class
Weight
(kg)
RST7.2540.189
RST7.5040.189
RST7.7540.189
RST7.10040.189
RST9.12540.189
50
60
70
80
90
RST7.4040.189
RST7.8040.189
RST7.12040.189
60
80
90
Standard class - Max. 470 V
Harmonic pollution 25% < SH/ST ≤ 35%
RST7.2540.189
RST7.5040.189
RST7.7540.189
RST7.10040.189
RST9.12540.189
Joining bars
Nominal power (kVAr)
25
50
75
100
125
400
1
1
1
1
1
Reinforced class - Max. 520 V
Harmonic pollution 35% < SH/ST ≤ 50%
1
1
1
Nominal power (kVAr)
RST7.R4040.189 40
RST7.R8040.189 80
RST9.R12040.189 120
Fixing holes 24 x 8.2
Nominal power (kVAr)
RST9.RS7240.189 72
Type R9
Fixing holes Ø 8.2
1
425
Harmonic pollution SH/ST > 50%
558
Extra-reinforced class - Max. 620 V
865
900
Extra-reinforced class
Weight
(kg)
R9.RS7240.189
100
39
Alpistatic automatic capacitor banks
400 V network
ST35040
Dimensions (p. 41)
IP 31 - IK 05 cabinet
Alpistatic is a real-time compensation system, with a response time ≤ 40 ms
It is specially designed for sites using fast changing loads, or for processes sensitive to harmonics and transient currents
All steps can be connected or disconnected at the same time, in order to exactly match to the reactive energy demand
Alpistatic is made up of one or several cabinets according to the capacitor bank model and the nominal current
Cable entry at the bottom (at the top on request)
Electrical parts protected against direct contact: IP 2 X (door open)
Grey cabinet (RAL 7035) with black base
Conforming to standards IEC 60439-1 and 2 and EN 60439-1
Pack
Cat.Nos
Standard type three-phase
400 V - 50 Hz
Pack
H type three-phase 400 V - 50 Hz
Cat.Nos
520 V max.
470 V max.
Harmonic pollution 15% < SH/ST ≤ 25%
Harmonic pollution SH/ST ≤ 15%
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
ST10040
ST12540
ST15040
ST17540
ST20040
ST22540
ST25040
ST27540
ST30040
ST35040
ST40040
ST45040
ST50040
ST52540
ST57540
ST62540
ST70040
ST75040
ST82540
ST87540
ST95040
ST100040
ST112540
ST125040
ST137540
ST150040
Nominal power (kVAr)
100
125
150
175
200
225
250
275
300
350
400
450
500
525
575
625
700
750
825
875
950
1000
1125
1250
1375
1500
Steps (kVAr)
2x25+50
25+2x50
50+100
2x50+75
50+2x75
25+50+2x75
50+2x100
50+3x75
2x50+2x100
50+3x100
4x100
75+3x125
4x125
2x75+3x125
75+4x125
5x125
75+5x125
6x125
75+6x125
7x125
75+7x125
8x125
9x125
10x125
11x125
12x125
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
STH10040
STH12540
STH15040
STH17540
STH20040
STH22540
STH25040
STH27540
STH30040
STH35040
STH40040
STH45040
STH50040
STH52540
STH57540
STH62540
STH70040
STH75040
STH82540
STH87540
STH95040
STH100040
STH112540
STH125040
STH137540
STH150040
Nominal power (kVAr)
100
125
150
175
200
225
250
275
300
350
400
450
500
525
575
625
700
750
825
875
950
1000
1125
1250
1375
1500
Steps (kVAr)
2x25+50
25+2x50
50+100
2x50+75
50+2x75
25+50+2x75
50+2x100
50+3x75
2x50+2x100
50+3x100
4x100
75+3x125
4x125
2x75+3x125
75+4x125
5x125
75+5x125
6x125
75+6x125
7x125
75+7x125
8x125
9x125
10x125
11x125
12x125
Other powers, voltages, frequencies
on request, please consult us
40
A Group brand
Alpistatic automatic capacitor banks (continued)
400 V network
STS50040.189
Pack
Cat.Nos
SAH type three-phase 400 V - 50 Hz
Pack
SAH type three-phase 400 V - 50 Hz
(continued)
Cat.Nos
Standard class - Max. 470 V
Reinforced class - Max. 520 V
Harmonic pollution 25% < SH/ST ≤ 35%
1
STS10040.189
1
STS12540.189
MS.R28040.215
1
STS15040.189
1
STS17540.189
1
STS20040.189
1
STS22540.189
1
STS25040.189
1
STS27540.189
1
STS30040.189
1
STS35040.189
1
STS40040.189
1
STS45040.189
1
STS50040.189
1
STS52540.189
1
STS57540.189
1
STS62540.189
1
STS70040.189
1
STS75040.189
1
STS82540.189
1
STS87540.189
1
STS95040.189
1
STS100040.189
1
STS112540.189
1
STS125040.189
1
STS137540.189
1
STS150040.189
Nominal power (kVAr)
Harmonic pollution 35% < SH/ST ≤ 50%
1
1
1
1
1
1
1
1
STS.R12040.189
STS.R16040.189
STS.R20040.189
STS.R24040.189
STS.R28040.189
STS.R32040.189
STS.R36040.189
STS.R40040.189
Nominal power (kVAr)
120
160
200
240
280
320
360
400
Harmonic pollution 35% < SH/ST ≤ 50%
Steps (kVAr)
100
2x25+50
125
25+2x50
150
50+100
175
2x50+75
200
50+2x75
225
25+50+2x75
250
50+2x100
275
50+3x75
300
2x50+2x100
350
50+3x100
400
4x100
450
75+3x125
500
4x125
525
2x75+3x125
575
75+4x125
625
5x125
700
75+5x125
750
6x125
825
75+6x125
875
7x125
950
75+7x125
1000
8x125
1125
9x125
1250
10x125
1375
11x125
1500
12x125
Reinforced class - Max. 520 V
Steps (kVAr)
40+80
2x40+80
40+2x80
2x40+2x80
40+3x80
4x80
40+4x80
5x80
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
STS.R44040.189
STS.R48040.189
STS.R52040.189
STS.R56040.189
STS.R60040.189
STS.R68040.189
STS.R72040.189
STS.R80040.189
STS.R84040.189
STS.R92040.189
STS.R96040.189
STS.R108040.189
STS.R120040.189
STS.R132040.189
STS.R144040.189
Nominal power (kVAr)
440
480
520
560
600
680
720
800
840
920
960
1080
1200
1320
1440
Steps (kVAr)
80+3x120
4x120
2x80+3x120
80+4x120
5x120
80+5x120
6x120
80+6x120
7x120
80+7x120
8x120
9x120
10x120
11x120
12x120
Extra-reinforced class - Max. 620 V
Harmonic pollution SH/ST > 50%
1
1
1
1
1
1
1
1
1
1
1
STS.RS.14440.189
STS.RS.21640.189
STS.RS.28840.189
STS.RS.36040.189
STS.RS.43240.189
STS.RS.50440.189
STS.RS.57640.189
STS.RS.68440.189
STS.RS.72040.189
STS.RS.79240.189
STS.RS.86440.189
Nominal power (kVAr)
144
216
288
360
432
504
576
648
720
792
864
Steps (kVAr)
2x72
3x72
4x72
5x72
6x72
7x72
8x72
9x72
10x72
11x72
12x72
Other powers, voltages, frequencies
on request, please consult us
41
Alpistatic automatic capacitor banks
n Dimensions
n Dimensions (continued)
Standard type - Three-phase
SAH type standard class - Three-phase
Dimensions (mm)
Dimensions (mm)
Height
Width
Depth
Weight
(Kg)
STS10040.189
1900
800
500
210
STS12540.189
1900
800
500
240
210
STS15040.189
1900
800
500
280
500
220
STS17540.189
1900
800
500
300
800
500
250
STS20040.189
1900
800
500
320
1900
800
500
260
STS22540.189
1900
800
500
360
ST25040
1900
800
500
280
STS25040.189
1900
800
500
380
ST27540
1900
800
500
300
STS27540.189
1900
800
500
400
ST30040
1900
800
500
320
STS30040.189
1900
800
500
430
ST35040
1900
800
500
350
STS35040.189
1900
800
500
460
ST40040
1900
800
500
375
STS40040.189
1900
800
500
500
ST45040
2100
1000
600
400
STS45040.189
2100
1000
600
530
ST50040
2100
1000
600
425
STS50040.189
2100
1000
600
630
ST52540
2100
2000
600
475
STS52540.189
2100
2000
600
660
ST57540
2100
2000
600
525
STS57540.189
2100
2000
600
690
ST62540
2100
2000
600
550
STS62540.189
2100
2000
600
720
ST70040
2100
2000
600
575
STS70040.189
2100
2000
600
780
ST75040
2100
2000
600
600
STS75040.189
2100
2000
600
810
ST82540
2100
2000
600
625
STS82540.189
2100
2000
600
840
ST87540
2100
2000
600
650
STS87540.189
2100
2000
600
870
ST95040
2100
2000
600
700
STS95040.189
2100
2000
600
910
ST100040
2100
2000
600
750
STS100040.189
2100
2000
600
930
ST112540
2100
3000
600
800
STS112540.189
2100
3000
600
1000
ST125040
2100
3000
600
850
STS125040.189
2100
3000
600
1100
ST137540
2100
3000
600
1000
STS137540.189
2100
3000
600
1200
ST150040
2100
3000
600
1200
STS150040.189
2100
3000
600
1300
Height
Width
Depth
Weight
(Kg)
ST10040
1900
800
500
170
ST12540
1900
800
500
200
ST15040
1900
800
500
ST17540
1900
800
ST20040
1900
ST22540
Cat.Nos
H type - Three-phase
Cat.Nos
SAH type reinforced class - Three-phase
Dimensions (mm)
Height
Width
Depth
Weight
(Kg)
STH10040
1900
800
500
170
STH12540
1900
800
500
200
STH15040
1900
800
500
210
STS.R20040.189
STH17540
1900
800
500
220
STS.R24040.189
STH20040
1900
800
500
250
STH22540
1900
800
500
260
STH25040
1900
800
500
STH27540
1900
800
STH30040
1900
800
STH35040
1900
STH40040
1900
STH45040
STH50040
Cat.Nos
Cat.Nos
Dimensions (mm)
Weight
(Kg)
Height
Width
Depth
STS.R12040.189
1900
800
500
250
STS.R16040.189
1900
800
500
280
1900
800
500
320
1900
800
500
360
STS.R28040.189
1900
800
500
400
STS.R32040.189
1900
800
500
430
280
STS.R36040.189
2100
800
500
460
500
300
STS.R40040.189
2100
800
500
500
500
320
STS.R44040.189
2100
1000
600
530
800
500
350
STS.R48040.189
2100
1000
600
630
800
500
375
STS.R52040.189
2100
2000
600
660
2100
1000
600
400
STS.R56040.189
2100
2000
600
690
2100
1000
600
425
STS.R60040.189
2100
2000
600
720
STH52540
2100
2000
600
475
STS.R68040.189
2100
2000
600
780
STH57540
2100
2000
600
525
STS.R72040.189
2100
2000
600
810
STH62540
2100
2000
600
550
STS.R80040.189
2100
2000
600
850
STH70040
2100
2000
600
575
STS.R84040.189
2100
2000
600
900
STH75040
2100
2000
600
600
STS.R92040.189
2100
2000
600
930
STH82540
2100
2000
600
625
STS.R96040.189
2100
2000
600
950
STH87540
2100
2000
600
650
STS.R108040.189
2100
3000
600
1000
STH95040
2100
2000
600
700
STS.R120040.189
2100
3000
600
1100
STH100040
2100
2000
600
750
STS.R132040.189
2100
3000
600
1200
STH112540
2100
3000
600
800
STS.R144040.189
2100
3000
600
1300
STH125040
2100
3000
600
850
STH137540
2100
3000
600
1000
STH150040
2100
3000
600
1200
SAH type extra-reinforced class - Three-phase
42
Dimensions (mm)
Height
Width
Depth
Weight
(Kg)
STS.RS.14440.189
2100
1000
600
350
STS.RS.21640.189
2100
1000
600
430
STS.RS.28840.189
2100
1000
600
510
STS.RS.36040.189
2100
2000
600
650
STS.RS.43240.189
2100
2000
600
730
STS.RS.50440.189
2100
2000
600
810
STS.RS.57640.189
2100
2000
600
870
STS.RS.64840.189
2100
3000
600
1000
STS.RS.72040.189
2100
3000
600
1180
STS.RS.79240.189
2100
3000
600
1250
STS.RS.86440.189
2100
3000
600
1310
Cat.Nos
A Group brand
Alptec power factor controllers
Alptec power factor controllers
n Technical specifications
For Alpimatic and Alpistatic cabinets
- Digital power factor controller
- LED screen: 3 digits, 7 segments
- Membrane keypad
- RS 232 serial port for setting parameters and automatic testing via a PC
- Internal temperature sensor
- Advanced function for measuring capacitor overvoltages, average over
a week
- 1 programmable relay for an alarm and/or controlling a fan
Versions
- 3, 5, 7 and 12 controlled steps
ALPTEC 12H
ALPTEC12.400
The Alptec power factor controller controls the connection and
disconnection of the steps in order to maintain the target power factor
It operates digitally which ensures the accuracy and reliability of the
measurements and values read, even on supplies subject to high levels
of interference
Conforming to standard IEC/EN 61010-1
Pack
Cat.Nos
Power factor controllers
Power supply 400 V - 50 Hz
1
1
1
1
ALPTEC3.400
ALPTEC5.400
ALPTEC7.400
ALPTEC12.400
Number of steps controlled
3
5
7
12
Power supply 230 V - 50 Hz
1
1
1
1
1
1
ALPTEC3.230
ALPTEC5.230
ALPTEC7.230
ALPTEC12.230
ALPTEC 12H
ALPTEC 11ST
Number of steps controlled
3
5
7
12
12
11
Temperature class
- Operation: - 10 to + 60°C
- Storage: - 20 to + 80°C
Current inputs
Rated current: 5 A (1 A on request)
Operating limit: 0.125 A to 6 A
Input current: 0.65 W
Not sensitive to the CT polarity
Not sensitive to the phase rotation polarity
Frequency
50 Hz/60 Hz
Parameters
Power factor: 0.8 inductive to 0.8 capacitive
Same step reconnection time: 5 to 240 s
Manual and automatic mode
4 quadrant operation (ALPTEC 12H) for operation on generator
Internal temperature sensor
Volt-free contact for remote alarm
Alarm display (overvoltage, over/under compensation, overload, etc.)
n Dimensions
Height x Width x Depth
(mm)
Weight (kg)
ALPTEC3.400
ALPTEC3.230
96 x 96 x 65
0.42
ALPTEC5.400
ALPTEC5.230
96 x 96 x 65
0.44
ALPTEC7.400
ALPTEC7.230
96 x 96 x 65
0.46
ALPTEC12.400
ALPTEC12.230
144 x 144 x 65
0.77
ALPTEC12H
144 x 144 x 65
0.98
ALPTEC11ST
144 x 144 x 65
0.98
Cat.Nos
43
detuned reactors - product range
technical data
Rated line voltage: 400/415V
Rated frequency: 50Hz
Tolerance on inductance: 0/+6%
Dielectric test 50Hz3kV, 60s Protection class: IP 00
Cooling method: natural air (AN)
Ambient temperature: -5 to +40°C
Elevation above sea level: 1000m a.s.l.
Reference standard: IEC 60289 –EN 60289
Insulation class H
Insulation level 1.1kV
Blocking factor p% 7% - Tuning order 3.78
Thermal protection switch (250V, 2.5A) wired on
terminal block
application
The detuned reactors are designed to protect the capacitors
against harmonics and avoid parallel resonance and amplification of
harmonics flowing on the network. The connection of these reactors
in series with capacitors causes a shift of the resonance frequency
of the circuit composed by feeding transformer-reactors- capacitors
so that the resulting self-resonance frequency is well below the line
harmonics
The blocking factor p% is expressed by the ratio between inductive
reactance and capacitive reactance it corresponds to the increase
of voltage applied to capacitors, with respect to line voltage, due to
circulation of capacitive current in the reactor
44
construction
The windings of reactors are made by copper or aluminium wire
(insulated by class H double-layer enamel or by double Nomex tape)
The reactor is protected by a vacuum and pressure impregnation
(VPI) by solventless polyester resin, followed by thermosetting in oven
The number and position of air gaps are selected in order to
minimise losses in magnetic core and windings
Limbs, yokes and air-gaps are blocked by adhesives and pressing
elements designed to reduce acoustic noise
The reactors are designed with natural air cooling
A Group brand
detuned reactors - product range (suite)
installation
It will be responsibility of the installer to comply with the national and international installation standards
The reactors operate properly only under the specified conditions:
- Storage and transportation temperature : -25°C / +70 °C
- Selection of the right type according to harmonic pollution
- In operation an adequate air circulation has to be guaranteed
- Windings must be installed vertically for better heat dissipation
- The reactor must be protected against overloads and short-circuits by fuses and/or circuit breakers.
- Suitable protection against undesired contacts (IP00) must be provided by means of enclosures or boxes protecting the power system where
the reactor is installed
- It is imperative to that the thermal N.C dry contact be connected in series with the contactor coil, in order to disconnect the step in case of
overheating
- This range of detuned reactors can not be connected with standard capacitors. It must be connected with appropriate H type capacitors
selected by our service (see selection table)
Available upon request :
- Ambient temperature higher than 40°C
- Other voltages (example 220V, 440V) lower than 1000V
- Other frequencies (example 60Hz)
- Other blocking factor p% : 5.67% ( tuning frequency 215Hz) - 13.7% ( tuning frequency 135Hz)
technical characteristics
DETUNED THREE-PHASE REACTORS 400V, 50 Hz
Tuning frequency 189Hz (p%=7 – n= 3.78)
Standard Class designed for harmonic level 25% < SH/ST < 35%
Q
(kVAr)
Capacitor part number
Ln
(mH)
IRMS (A)
Part Number
Ptot
(W)
12.5
VH12.540
2.85
21
SAH-2.85-21
100
25
VH2540
1.45
42
SAH-1.45-42
160
50
VH5040
0.72
83
SAH-0.72-83
230
75
VH7540
0.48
123
SAH-0.48-123
320
Tuning frequency 189Hz (p%=7 – n=3.78)
Reinforced Class designed for harmonic level 35% < SH/ST < 50%
Q
(kVAr)
Capacitor part number
Ln
(mH)
IRMS (A)
Part Number
Ptot
(W)
20
VH2040
1.78
38
SAH-1.78-38
200
40
VH4040
0.9
75
SAH-0.9-75
280
80
VH8040
0.45
150
SAH-0.45-150
380
Nota: If the ratio SH/ST is between the 2 values given in the table then you must select the most restricting alternative
p% : blocking factor, it is expressed by the percentage ratio between inductive reactance and capacitive reactance (p = X L / XC x 100)
It is related to the resonance frequency (fris) of the system by the formula:
Q : compensation reactive power (KVAr)
Ln : rated inductance, expressed in mH.
IRMS : current, expressed in A. It is given by the formula:
2
fris = 50x
2
100
p%
2
IRMS = 1.075xI 1 + I 5 + I 7 + ...
where I5 is the rms value of the 5th harmonic current, I7 of the 7th harmonic…
Ptot : total losses, including additional losses due to harmonics, expressed in W and referred to 75°C
45
detuned reactors - product range (continued)
technical characteristics (continued)
A
B
C
A1
B1
C1
H
H
A B C A1 B1 C1
L
L
B
T. Block B
Aluminium bars
DETUNED THREE-PHASE REACTORS 400V, 50 Hz
Tuning frequency 189Hz (p%=7 – n= 3.78)
Standard Class designed for harmonic level 25% < SH/ST < 35%
Dimensions
(mm)
Part Number
Weight
(Kg)
L
B
H
SAH-2.85-21
160
130
170
7
SAH-1.45-42
240
160
220
13
SAH-0.72-83
240
160
240
20
SAH-0.48-123
240
160
240
26
Tuning frequency 189Hz (p%=7 – n=3.78)
Reinforced Class designed for harmonic level 35% < SH/ST < 50%
Dimensions
(mm)
Part Number
46
Weight
(Kg)
L
B
H
SAH-1.78-38
240
160
240
16
SAH-0.9-75
240
200
240
25
SAH-0.45-150
240
220
240
33
A Group brand
protective circuit breakers and connection cables for capacitors
circuit breaker selection chart
Three-phase 400 V capacitor
nominal power
(kVAr)
cables
min. cross-section/phase
3P circuit breaker
rating/thermal
setting
(A)
Cu (mm2)
Al (mm2)
10
20/20
6
10
20
40/40
10
16
30
63/60
16
25
40
80/80
25
35
50
100/100
35
50
60
125/125
35
50
70
160/140
35
50
80
160/160
50
70
90
200/180
50
70
100
200/200
70
95
125
250/250
70
95
150
400/300
95
120
175
400/350
120
185
200
400/400
150
240
225
630/450
150
240
250
630/500
185
2 x 120
275
630/550
185
2 x 120
300
630/600
2 x 95
2 x 150
325
630/630
2 x 95
2 x 150
350
800/700
2 x 120
2 x 185
375
800/750
2 x 120
2 x 185
400
800/800
2 x 150
2 x 240
450
1000/900
2 x 150
2 x 240
500
1000/1000
2 x 185
4 x 150
550
1250/1100
2 x 185
4 x 150
600
1250/1200
4 x 120
4 x 185
650
1250/1250
4 x 120
4 x 185
700
1600/1400
4 x 150
4 x 240
750
1600/1500
4 x 150
4 x 240
800
1600/1600
4 x 150
4 x 240
850
2000/1700
4 x 150
4 x 240
900
2000/1800
4 x 150
4 x 240
950
2000/1900
4 x 185
4 x 300
1000
2000/2000
4 x 185
4 x 300
Note: The cable cross-sections given in this table are minimum recommended cross-sections. They do not take additional correction factors into account (method of installation,
temperature, long lengths, etc.). The calculations are for single pole cables fitted at an ambient temperature of 30°C
47
special products and services
a comprehensive range of products and services
special products
The ALPIVAR 2, ALPIBLOC, ALPIMATIC and ALPISTATIC ranges are the most
widely used standard ranges
All these products can be made for other electrical characteristics (frequencies,
voltages, powers, connections, etc.), and in particular:
- 60 Hz and other frequencies for a wide range of applications
- Single phase voltages
- Dual voltage with retained power
- Other standard voltages: 240 - 415 - 480 - 500 - 530 - 550 - 600 - 690 - 800 V, etc.
- Other power ratings on request (please consult us)
network audit
design software
Your mains supplies are subject to interference from numerous
electrical phenomena
A simple one-off check is no longer enough to give you a true image
of your installation
LOGIALPES capacitor bank design software
This is very user-friendly and can be used to define the right capacitor
bank for your installations in just few clicks
The Alpes Technologies audit provides you with an analysis of the
behaviour of your mains supply over one week
We take readings from the analyser installed in your company via a
GSM modem
Our experts provide you with a report clearly setting out the essential
phenomena of your electrical installation
The audit that is performed:
- Shows up faults on the mains supply
- Enables the reactive energy compensation to be sized
- Provides guidance on the selection of energy supply solutions
(filtering, sizing of the transformer, capacitor banks)
Example of a report page:
Significant curves
Summary of the
maximum values
Comments and
definitions of
the physical
measurements
You can download it from: www.alpestechnologies.com
48
A Group brand
network analysers Alptec 2444, Alptec 2333
On industrial sites, for renewable energies, energy suppliers
RBAA001.1
RBAD001.1
RDAB002
Alptec 2444 and Alptec 2333 network analysers are used for real-time, simultaneous monitoring of all electrical parameters:
- Dips, overvoltages and interruptions
- Flicker
- Waveforms (200 points per period) recorded on events
- Active, reactive and apparent powers
- Power factors, tangents and peak factors
- Static rms measurements
- 51 harmonic orders
Pack
1
1
Cat.Nos
RBAA001.1
RBAD001.1
Alptec 2444 quality analysers
Power supply: 190-264 V± / 240-360 V=
(48 V= and 127 V= supply available on
request)
The following values are measured and
recorded on a Compact Flash card:
- Dips, overvoltages and distortions
- Reports on quality of current
- Flicker (Pst, Plt acc. to IEC 61000-4-7)
- 51 harmonics and inter-harmonics
(voltage and current)
- Unbalance
- Conventional values (U, I, P, Q, S, D, PF,
THD U and THD I)
Communication methods: USB, Ethernet
and RTC modem (GSM and IP modem
available on request)
Supplied with:
- Backup battery (standalone operation:
30 minutes minimum)
- 512 Mb Flash memory card
- RS 232 cable
- USB cable
Alptec 2444d - For mounting on DIN rail
For permanent installation
Measurement: 4 voltages and 4 currents
with galvanic insulation
Input: screw terminal blocks
Alptec 2444i - portable
For temporary installation
Portable device
Measurement: 4 voltages and 4 currents
Quick connectors
Supplied with:
- Voltage clamps
- Current clamps (100 A/1 Vrms)
- Carrying case
Pack
Cat.Nos
1
RDAB002
1
RBAT001
Alptec quality
analysers - IP 54
Power supply: 215-600 V± three-phase or
125-325 V± single phase
Portable device
The following values are measured and
recorded:
- Dips, overvoltages and distortions
- Report on quality of current
- Flicker (Pst, Plt acc. to IEC 61000-4-7)
- 51 harmonics and inter-harmonics
(voltage and current)
- Symmetrical values, unbalance
- Conventional values (U, I, P, Q, S,
D, PF, THD U and THD I)
Communication method: USB
Measurement: 3 voltages and 3 currents
Supplied with:
- Backup battery (minimum standalone
operation:
45 minutes)
- Memory capacity 1 Gb
- USB cable
- 3 voltage clamps
- 3 current clamps (100 A/1 Vrms)
- Carrying case
Winalp 2400 software
For downloading, storing and
comparing data from the whole range of
Alptec current quality analysers, so that
the data can then be analysed and reports
printed out
Compatible with:
- Win98
- Win NT4
- Windows millennium
- Windows XP
- Windows Vista
Accessories
3
RBAE016
3
RBAG007
3
RBAE017
3
RBAE006
Clamps
10 A micro-clamps
Supplied with a 2 m cable
Adjustable clamp: 10 A/100 A/1000 A
Supplied with a 2 m cable
Alpflex flexible clamp
Adjustable flexible clamp:
3 kA/1 kA/300 A
Supplied with a 3 m cable
Novafax 56000 modem
Modem for downloading data at 56 kbps
48 V= and 127 V= electricity supply,
GSM and IP modem: please consult us
49
medium voltage
compensation
maiN aDvaNTagES Of THE
mEDium vOlTagE raNgE
> Synthetic "all-film" type dielectric capacitors have numerous
advantages, the most important of which are: a long service life and
excellent thermal stability linked to very low power losses.
The remarkable chemical stability of the liquid dielectric gives a high
transient overcurrent and overvoltage absorption capacity and a very
low variation of capacitance as a function of temperature.
50
> The ranges of medium voltage capacitors and capacitor banks
complete the offer, providing fixed or automatic solutions, with or
without harmonic filters.
A Group brand
medium voltage capacitors
(See p. 52 - 59)
Protection of "all-film" MV capacitors p. 56-58
"All-film" MV capacitor installation conditions
p. 58
Capacitors for
induction furnaces
p. 55
"All-film" medium voltage
capacitors
p. 52-54
Dimensions and weights of "all-film"
MV capacitors
p. 59
medium voltage capacitor banks
(See p. 60 - 63)
Wiring medium voltage capacitor banks
p. 61
Built-in electrical protection devices
p. 62
Additional accessories, operating and protection devices p. 62-63
Medium voltage capacitor banks
p. 60
racks and cubicles for
MV capacitor banks
(See p. 64 - 68)
Installation examples: fixed type - delta configuration p. 65
Installation examples: fixed type with
contactors - delta configuration p. 66
Installation examples: fixed type - double
star configuration p. 67-68
Racks and cubicles for capacitor banks p. 64
energy compensation principles & other ranges
General information
See p. 4-19
Low voltage energy compensation
See p. 20 - 49
51
Electrical characteristics of medium voltage
capacitors
medium voltage range
"ALL-FILM" Medium voltage CAPACITORS
Medium voltage capacitors are composed of
elementary or partial capacitances, generally
connected in several series-parallel groups, providing
the required electrical characteristics for the unit.
• The nominal voltage of a capacitor depends on the
number of groups in series
• The nominal power of a capacitor depends on the
number of partial capacitances in parallel per group
Each elementary capacitance is made of two sheets
of aluminium foil forming the reinforcements or the
electrodes and special high quality polypropylene film
which is rough to assist impregnation, forming part of
the insulation.
This wired capacitance assembly, referred to as the
"active part", is positioned in a stainless steel case,
which has insulated porcelain terminals or bushings at
the top for connecting the device.
After the "active part" has been dried and treated, is
impregnated under vacuum with a liquid dielectric of
the following type:
- Non-chlorinated
- Non-toxic
- Biodegradable
1
2
5
3
4
External view of an "all-film" MV capacitor
1. Connection
2. Porcelain terminal
3. Fixing lug
4. Stainless steel case
5. Active part
52
With the polypropylene film, this liquid dielectric,
which has a remarkably high chemical stability,
a high gas absorption capacity and a high partial
discharge extinction capacity (discharges for which
the flash point is approximately 150°C), ensures total
insulation between electrodes. This "all-film" capacitor
technology has the following main characteristics:
- Excellent resistance to strong electrical fields
- Very low power losses, leading to considerable
savings for high power capacitor banks
A Group brand
Variation of the W/kVAr losses as a function
of the temperature
W/kvar
Losses = F (T)
2.0
1.5
1.0
0.5
0
0
20
40
60
80
100
T (0°C)
Mixed dielectric
All-film dielectric
Variation of the capacitance C (µF) as a function
of the temperature
C = f (T)
C (%)
2.0
1.5
In comparison with the previous generation of "mixed"
type dielectric (paper + film) capacitors, synthetic
"all‑film" type dielectric capacitors have a much longer
service life, due to:
• Their excellent thermal stability related to very low
power losses, due to the removal of the paper
• The remarkable chemical stability of the liquid
dielectric, giving:
- A high partial discharge absorption capacity
- High dielectric resistance to transient
overcurrents and overvoltages
- A very low variation of capacitance as a function of
temperature
• Average loss factor:
- 0.15 W/kVAr at power-up
- 0.1 W/kVAr after 500 hours' operation
• Variation of the capacitance as a function of the
temperature:
- Average: 2 x 10-4/°C.
• Internal discharge device:
- Internal discharge resistors reducing the residual
voltage to 75 V in 10 minutes after disconnection of
the supply
• Frequency:
- Standard: 50 Hz (60 Hz on request)
1.0
0.5
0
0
20
40
60
80
100
T (0°C)
Mixed dielectric
All-film dielectric
• Reference standards:
- French: C 54 102
- International:
* IEC 60 871.1 and 2 (supply capacitors) * IEC 60 110 (capacitors for air or water cooled
induction furnaces)
- German: VDE 0560/4,
VDE 0560/9
- British: BS 1650
- Other standards on request
53
medium voltage range
"All-film" MV capacitors (continued)
Electrical characteristics of medium voltage
capacitors (continued)
medium voltage range
"all-film" medium voltage capacitors (continued)
Variation of the W/kVAr losses as a function
of the operating time
Losses = F (op. time)
2.0
1.5
W/kvar
• Permissible overloads
- Current: 1.3 I nominal continuously
- Voltage (between terminals):
• 1.1 U nominal, 12 hours in every 24 hours
• 1.15 U nominal, 30 minutes in every 24 hours
• 1.2 U nominal, 5 minutes in every 24 hours
• 1.3 U nominal, 1 minute in every 24 hours
• Standard insulation levels (phases/earth) for
individual capacitors
1.0
0.5
0
0
3
6
9
12
Months of operation
Mixed dielectric
All-film dielectric
- Highest voltage for equipment Um
(rms) (kV)
2.4
3.6
7.2
12
17.5
24
- Test voltage at industrial frequency
(duration: 10 seconds) (kV)
8
10
20
28
38
50
- Lightning impulse withstand voltage
(peak value) (kV)
35
40
60
75
95
125
• Individual tests
- Measurement of capacitance and losses
- Voltage test between terminals, i.e.:
• 2 U nominal, 10 s. AC voltage
• 4 U nominal, 10 s. DC voltage
- Voltage test between joined terminals and earth at
industrial frequency
- Test of discharge device and seal-tightness of the
case.
54
A Group brand
medium voltage range
Capacitors for induction furnaces
Alpes Technologies offers a range of special capacitors
for the compensation and balancing of induction
furnaces.
These capacitors are custom designed according to the
requirements and characteristics of the installation.
• Capacitors complying with standard IEC 60110
• "All-film" dielectric
• Biodegradable impregnating agent
• With or without internal discharge resistor
• Possible internal protection devices:
- Internal fuses
- Pressure monitoring device
- Thermostat
• Frequency range: 50 Hz to 200 kHz
• Voltage range: 50 V to 3000 V
• Air or water cooled according to frequency
• Multiple outputs possible
Water-cooled capacitor for medium
frequency induction furnaces
Please consult us for a costed design
55
Electrical characteristics of medium voltage
capacitors (continued)
medium voltage range
protection devices for "all-film" MV capacitors
Protection using internal fuses
Due to the advantages they provide, internal fuses are
the most frequently used means of protecting "all‑film"
MV capacitors.
In this technology, each elementary capacitance
forming the capacitor is protected by its own
internal fuse.
When there is a fault on an elementary capacitance,
the internal fuse eliminates the corresponding
capacitance and the continuity of service of the
capacitor is assured.
Given the large number of elementary capacitances
that make up the device, the loss of power resulting
from the first fault is negligible (less than 2%). The
external unbalance protection will only be activated if
there is a large number of "broken down" elementary
capacitances in one capacitor which will create an
unbalance. The operation of an internal fuse is activated:
- When the voltage of the capacitor reaches its
maximum value, and therefore the current reaches
its minimum value, the voltage difference at the
terminals of the "faulty" elementary capacitance
will trigger the blow-out of the corresponding fuse.
- When the current reaches it maximum value,
and therefore the voltage reaches its minimum
value, the flow of the energy stored in the parallel
operational capacitances in the "faulty" capacitance
will trigger the blow-out of the corresponding fuse.
56
1
2
3
Internal view of an "all-film" MV
capacitor with internal fuses
1. Discharge resistor
2. Internal fuse
3. Elementary capacitance
A Group brand
Protection by pressure monitoring
device
Protection by means of a pressure monitoring device
is useful if the capacitor cannot be protected correctly
using internal fuses or by unbalance monitoring (due to
electrical characteristics or cost problems).
This protection is individual to each capacitor.
It consists of a pressure switch that is hermetically
sealed onto the capacitor case.
This pressure switch consists of a "membrane" that
is sensitive to the increase in pressure generated in
the case if there are breakdowns of the elementary
capacitances, and an NC/NO contact which trips the
banks's operating device (contactor - switch, etc.)
medium voltage range
protection devices for "all-film" MV capacitors (continued)
85
Pressure monitoring unit
“NO/NC” contact connection
57
Electrical characteristics of medium voltage
capacitors (continued)
medium voltage range
protection devices for "all-film" MV capacitors (continued)
There are four protection options for "all-film"
MV capacitors:
• Without internal fuses and external protection by
unbalance monitoring
• With internal fuses and external protection by
unbalance monitoring
• Without pressure monitoring device and external
protection by HRC fuses
• With pressure monitoring device and external
protection by HRC fuses
The choice between these four options is dependent on
the following criteria:
• Electrical characteristics of the capacitor (power,
voltage, connection)
• Customer's requirements concerning the sensitivity
of the protection device
The following table gives the possible type of protection for the capacitor and its advantages, according to the
above criteria.
Capacitor power and voltage
Capacitor
connection
Capacitor protection
Associated external
protection
All powers and all voltages
Single phase
Without internal fuse
Unbalance
P ≥ 200 kVAr and U ≤ 13 kV
Single phase
With internal fuses
Unbalance
All powers and U ≤ 12 kV
Three-phase
Without pressure
monitoring device
HRC fuses
All powers and U ≤ 12 kV
Three-phase
With pressure monitoring
device
HRC fuses
Advantages
• Does not trip on 1st fault
• Assured continuity of service
• No risk of rupture of case
installation conditions for "all-film" MV capacitors
Temperature class
• Standard: - 25/+ 45°C:
- 45°C average over 1 hour
- 40°C average over 24 hours
- 30°C average over 1 year
Compatibility with the environment
• "All-film" capacitors are impregnated with a
(PCB‑free) biodegradable liquid dielectric. Their
installation does not require any particular precautions
with regard to the environment.
Protection against corrosion
• Installation possible: indoor or outdoor
• Stainless steel case, with one coat of primer and
several top coats (RAL 7033)
58
Other temperature classes on request,
please consult us
A Group brand
Dimensions, for information purposes
Power
(mm)
(standard)
kVAr
Hc
A
D
220
Connection Ø = M 12
Insulated terminals
Hb
Fixing lugs
Hc
A
D
Oblong holes 11x15
Weight
(kg)
50
190
40
135
17
75
250
100
135
21
100
280
130
135
23
125
350
200
135
27
150
370
220
135
30
175
450
300
135
33
200
460
310
135
35
250
460
310
135
42
300
510
360
175
46
350
590
440
175
53
400
650
400
175
60
450
730
480
175
65
500
790
540
175
70
345
550
880
630
175
76
397
600
950
700
175
82
Note: Given the multiplicity of MV capacitor voltages, these dimensions must be
confirmed by our technical departments.
430
Connection Ø = M 12
123
medium voltage range
dimensions and weights of "all-film" MV capacitors
123
Insulated terminals
Hb
Fixing lugs
Hc
A
Hb Indoor type (mm)
Hb Outdoor type
(mm)
Um rms
kV
75
235
2.4
160
235
3.6
160
235
7.2
160
235
12
235
235
17.5
265
265
24
Note: The Um rms voltage to be taken into account is the voltage of the mains supply to
which the capacitor is to be connected, and not the nominal voltage of the unit (applies in
particular to single phase capacitors wired in star or double star configurations).
D
Oblong holes 11x15
345
397
430
59
Medium voltage capacitor banks
medium voltage range
types of capacitor banks
A capacitor bank is generally made up of several
individual single phase or three-phase capacitors,
assembled together and interconnected to create high
power assemblies called "capacitor banks".
ALPES TECHNOLOGIES designs and manufactures
various different types of capacitor banks, defined by:
• The total reactive power to be installed
• The nominal supply voltage
• The electrical requirements:
- Presence of harmonics
- Automatic capacitor banks with power factor
controller
• Installation
- Indoor (in an electrical room)
- Outdoor (in an electrical substation)
• Operator safety
- IP 00 open rack
- IP 21 - IK 05 cubicle (indoor installation)
- IP 23 - IK 05 cubicle (outdoor installation)
60
A Group brand
Wiring MV capacitor banks
The "all-film" MV capacitor is generally a single phase unit (or three-phase for max. voltages of 12 kV).
There are several wiring or connection methods for combining individual capacitors to create high power capacitor
banks.
L1
L2
L3
HRC fuse
Three-phase capacitor
L1
L2
• Delta wiring
This type of wiring is used for low power capacitor
banks and those with a nominal voltage of less than
12 kV.
These capacitor banks are mainly intended for direct
compensation at the terminals of MV motors.
The capacitor(s) are generally three-phase.
L3
Single phase
capacitor
Unbalance CT
• Double star wiring
The type of wiring is suitable for capacitor banks of
all powers and voltages (in this case single phase
capacitors are subject to phase-to-neutral voltage).
An unbalance protection device (transformer and
current relay) continuously monitors the unbalance,
between two neutral points, and if there is an internal
fault in a capacitor it triggers the opening of the bank's
operating device.
L1
Single phase capacitor
Unbalance CT
L2
• H wiring
This type of wiring is intended for high power single
phase MV capacitor banks and three-phase MV
capacitor banks. For three-phase capacitor banks, the
unbalance is monitored on each phase.
This unbalance monitoring system applies to both star
and delta capacitor banks.
61
medium voltage range
wiring capacitor banks
Capacitor banks (continued)
medium voltage range
built-in electrical protection devices
In addition to the protection devices specific to each
capacitor (internal fuses or pressure monitoring
devices), other accessories must be used and an
associated external protection device incorporated in
the capacitor bank. The most commonly used external
protection devices are:
- HRC fuses
- Unbalance or differential protection
HRC fuses
Protection using HRC fuses integrated in the capacitor
bank is ideal (technically and economically) for
capacitor banks with the following characteristics:
- Low power (< 1000 kVAr)
- Those equipped with three-phase connection
capacitors (see delta wiring, p. 57)
- Supply voltage less than 12 kV
The rating of the HRC fuses will be selected to have a
value between 1.7 and 2.2 times the nominal current of
the capacitor bank.
HRC fuse blow-outs are generally caused by a short
circuit inside the capacitor.
Unbalance or differential protection
This protection generally applies to capacitor banks
with the following characteristics:
- Medium or high power (> 1000 kVAr)
- Those with single phase connection capacitors
- Supply voltage greater than 12 kV
Unbalance or differential protection is sensitive,
capable of detecting and reacting to a partial fault in a
capacitor.
It consists of a current transformer connected between
two electrically balanced points, combined with a
current relay. When there is a fault in a capacitor there
is an unbalance and therefore a current circulating in
the current transformer, which will cause, by means of
the relay, the banks' operating device (circuit breaker,
switch, contactor, etc.) to open.
additional accessories
Quick discharge reactors
Installing two quick discharge reactors or voltage
transformers between the phases of the capacitor bank
reduces the capacitor discharge time from 10 minutes
to approximately 10 seconds.
This reduced discharge time:
- Provides safety for staff when carrying out work
- Reduces waiting time before earthing (closing of the
earthing switch)
- Makes it possible to reactivate the capacitor banks
in steps more quickly after breaking, although a
minimum time of 30 minutes between two discharges
is essential, to ensure correct cooling of the reactors.
62
Damping reactors
Installing single phase damping reactors in series on
each phase of the capacitor bank makes it possible
to reduce the switching currents to values that are
acceptable for the corresponding operating device.
These are necessary in the following situations:
- Step capacitor banks
- Very high mains short-circuit power in relation to the
power of the capacitor bank to be connected
- Frequent control operations of the capacitor bank
A Group brand
Detuned reactors
Contactor
For mains supplies with a high level of harmonic
interference, installing a detuned reactor, generally
three-phase and connected in series with the capacitor
bank, is the only effective protection.
The detuned reactor performs a dual role:
- Increasing the impedance of the capacitor in relation
to the harmonic currents
- Shifting the parallel resonance frequency of the
source and the capacitor to below the main frequencies
of the harmonic currents that are causing interference
The installation of a contactor at the input of the capacitor
bank enables it to be controlled by a PLC or a regulation
system (for example a power factor controller).
This contactor is designed to switch capacitive currents
and is generally of vacuum type.
A contactor must always be used with three damping
reactors, or a detuned reactor in order to damp the
inrush currents.
Note: The detuned reactor also performs the functions
of a damping reactor.
• Earthing switch
• Switch (optionally motorised)
• Circuit switch (optionally motorised)
• Power factor controller to control automatic capacitor
banks
Other possible components:
operating and protection devices
The operating and protection equipment (circuit
breaker, fuse, switch, contactor) of a medium
voltage capacitor bank must take the following three
requirements into account:
• Capacity to withstand high transient currents when
activated
• Capacity to ensure breaking on opening without
restrike (at the moment of breaking, the capacitor bank
may be loaded at full voltage)
• Capacity to withstand a permanent rms current
corresponding to at least 1.43 times the nominal 50 Hz
current of the capacitor bank in steady state.
Vacuum switch operating devices, or those in the SF6,
are ideal for operating and protecting capacitor banks.
The ALPES TECHNOLOGIES Technical Departments
can advise you on the selection of a suitable operating
and protection device for your capacitor bank.
63
medium voltage range
additional accessories (continued)
Racks and cubicles for capacitor banks
medium voltage range
Composition
Possible components of medium voltage capacitor
banks:
• Capacitors
• Additional accessories (discharge reactors, damping
reactors and detuned reactors)
• Built-in electrical protection devices (HRC fuses,
unbalance protection devices, etc.)
• Operating devices (circuit breakers, switches,
contactors, etc.)
• Power factor controllers for automatic capacitor
banks
64
They can be fitted and wired:
- On open racks (IP 00)
- In cubicles (IP 21 or IP 23 - IK 05)
(other degrees of protection on request).
These assemblies are designed for:
- Indoor type installation
- Outdoor type installation
ALPES TECHNOLOGIES offers various standard or
specific equipment to meet your requirements.
A Group brand
medium voltage range
installation examples
Fixed type - Delta configuration
• Max. voltage: 12 kV
• Max. power: 2500 kVAr
• Installation: indoor or outdoor
• Possible components:
damping reactors, discharge reactors, HRC fuses,
earthing switch, detuned reactor, etc.
• Max. dimensions (mm): 2000 x 2000 H = 2200
Example of electrical diagram
L1
L2
L3
Example of assembly
65
Racks and cubicles for capacitor banks
(continued)
medium voltage range
installation examples
Fixed type with contactors - Delta configuration
• Max. voltage: 12 kV
• Max. power: 2500 kVAr
• Installation: indoor or outdoor
• Possible components:
damping reactors, discharge reactors, contactors, HRC
fuses, power factor relays, detuned reactor, etc.
• Max. dimensions (mm): 2000 x 2000 H = 2200
Example of electrical diagram
L1
Example of assembly
66
L2
L3
medium voltage range
A Group brand
Fixed type - Double star configuration
• Max. voltage: 36 kV
• Max. power: 20,000 kVAr
• Installation: indoor or outdoor
• With or without serial group per branch
• Possible components:
damping reactors, discharge reactors, unbalance
relays, unbalance current transformers, etc.
• Max. dimensions (mm): 3500 x 2000 H = 4000
Example of electrical diagram
L1
L2
L3
To unbalance relay
Example of assembly
67
Racks and cubicles for capacitor banks
(continued)
medium voltage range
installation examples
Fixed type - Double star configuration
• Max. voltage: 24 kV
• Max. power: 5000 kVAr
• Installation: indoor or outdoor
• Possible components:
damping reactors, discharge reactors, unbalance
current transformers, unbalance relays, etc.
• Max. dimensions (mm): 2500 x 2000 H = 2200
Example of electrical diagram
L1
L2
L3
To unbalance relay
Example of assembly
68
A Group brand
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notes
notes
EX210023 - FEBRUARY 2010
Energy performance of installations in commerce and industry
P.A.E. Les Glaisins
7, rue des Bouvières - B.P. 332
74943 Annecy-Le-Vieux Cedex
Tél : 33 (0) 4 50 64 05 13
Fax : 33 (0) 4 50 64 04 37
E-mail : [email protected]
Site : www.alpestechnologies.com
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