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PRODUCT GUIDE
Low Voltage Compensation
and Filtering Products
Low voltage products for better power quality
and improved network efficiency.
Alstom Grid compensation equipment helps customers improve
performance through energy savings and better power quality.
With our products and solutions, customers save money and
reduce the environmental impact of their operations.
Applications
Alstom Grid products
• Improving power quality and
power factor correction
• Power factor correction
with fast variable loads,
such as harbor cranes and lifts
• Improving the power factor
and power quality
• Power factor correction
in distorted networks
Customer Benefits
• Reduce harmonics
• Compact solutions
• Lower losses
• Improved Power
Quality
• Money saving
• Reactive power
compensation in
low voltage
networks without
harmonics
• All types of
capacitor
banks
Active
filters
Typical customers
• Windparks
• Companies with welding machinery
• Companies with lifts
• Companies with fast variable loads
Thyristor
swiched
capacitor
banks
Harmonic filter
capacitor banks
Detuned filter
capacitor banks
Automatic capacitor banks
Low voltage capacitor units
Electronic discharge devices
XKIB iron core blocking reactors
Power factor controllers
• Harbor cranes
• Premises with lifts
• Machine builders
• Commercial premises
• Industries of all kinds
• Greenhouses
• Contractors
• Commercial premises
• Industries of all kinds
• Contractors
• Commercial premises
• Industries of all kinds
• Power utilities
• Contractors
• Panel builders
• LV switchboard
manufacturers
Alstom Grid compensation equipment - a wide range of products and
one-off solutions at low voltage levels. We analyze your needs and
engineer the right solutions for optimal efficiency and economy.
• Low voltage Compensation
and Filtering Products
1
• Why do we need
Power Compensation
2
• N-series low voltage
capacitor units
3
• L1 and L2-series low voltage
capacitor units
4
• Electronic discharge devices
5
• XKIB iron core blocking reactors
6
• Wall mounted automatic
capacitor bank
7
• Fixed detuned filter
capacitor banks
8
• DW-series detuned filter
capacitor banks
9
• D-series detuned filter
capacitor banks
10
• Third harmonic filter
capacitor banks
11
• F-series harmonic filter
capacitor banks
12
• DT-series thyristor switched
capacitor banks
13
• MaxSine active filters
14
• Power factor controllers
N-6, N-12 and NC-12
15
• NCM-20 digital
capacitance meters
16
GRID
1
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
Why do we need Power Compensation ?
Power factor correction
Connected equipment (transformers, motors, air-conditioning, refrigerators, etc.) cause a phase angle between current and voltage.
When the current is phase-shifted, it takes more current to deliver the same amount of active power.
Current
should be like this...
(maximum active power)
1,5
1
0,5
0
-0,5
-1
-1,5
Voltage
=
Current
but are like that.
1,5
1
0,5
0
-0,5
-1
-1,5
(deteriorated active power)
Apparent Power
• Transmission equipment has to be sized for the apparent power,
yet only active power is useful
• Increased losses in the network
• You pay for apparent power but use active power (higher electricity bill)
• Penalty fees to customers with a low power factor (example < 0.95)
WHO
Voltage
Active Power
=
IMPACT of reactive power
Current
Active Power
<
Power factor =
Active power /
Apparent power
<
Apparent Power
• Power consumers, network operators, power supplies, power industry,
hospitals, offices, public buildings, factories
SOLUTION
• The power factor of a facility can be improved by installing capacitor banks
Dephasing between current
and voltage decreases the
active power (only the active
power is converted into
useful mechanical power).
Harmonic filtering
• Additional losses (paid for by the end user)
• Heating in power cables
• Audible noise (transformers)
• Penalty fees to customers with a low power factor (example < 0.95)
Impact of harmonics on equipment connected
• Decreased machine efficiency
• Costly process shutdowns
• Disturbed electronic equipment (computers, telephones)
but are like that.
Current (Amps)
Impact of harmonics on transmission / distribution equipment
Voltage and current
should be like this...
Current (Amps)
Variable speed drives (process industries, lifts, air conditioning
pumps, etc.), uninterruptible power supplies for computers, electronic
equipment, etc. distort the current (introduce harmonics).
Time (ms)
Time (ms)
Current oscillogram before filtration
WHO
• Power consumers, network operators, power supplies, power industry
SOLUTION
• Harmonics can be filtered through a combination of reactors and capacitors
(passive filtering) or by injecting the exact opposite of the harmonics
detected (active filter) into the network.
Power compensation brings
ECONOMIC BENEFITS
• Saving the costs of reactive power
• Additional savings through reduced active power losses
• Reduction in investment cost
Return on investment is generally below 18 months
2
ENVIRONMENTAL BENEFITS
• Reduced CO2 emissions
Customers see environmental benefits through energy savings and more
efficient power systems.
By saving millions of tons of CO2, power compensation makes
an active contribution to protecting the environment
GRID
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
N-series low voltage capacitor units
Product features
Capacitor elements made of metallized polypropylene film are selfhealing and dry without impregnation liquid. Each capacitor element is
individually protected with patented internal fuse protection.
Capacitors have low losses, and are constructed to be compact size
and light in weight. The low voltage power capacitors comply with
most national and international standards.
Standard series, for 50 Hz or 60 Hz frequencies, are available for the
following voltages: 220, 230, 240, 380, 400, 415, 440, 480, 525, 600,
660 and 690 V.
Other voltages up to 1000 V are available on request.
Applications
• All kinds of capacitor banks
Technical data
Typical Alstom Grid customers
Rated voltage
200 V to 1000 V
• Panel builders
• LV switchboard manufacturers
Rated frequency
50 Hz or 60 Hz
Insulation level
4 kV rms/12 kV crest
Power losses
≤ 0.5 W/kvar
Continuous overvoltage
1.1 x UN
Continuous overcurrent
1.3 x IN
Mounting arrangement
indoor
Enclosure IP class
IP42
Temperature class
Average 24h:
Average 1 year:
-40° C to + 55° C
+ 45° C
+ 35° C
Weight
2.5 to 5 kg
Color
RAL7032
Standards
IEC 60831 - 1&2
Customer advantages
•
•
•
•
•
Low losses
Compact size
Light in weight
Self-healing
Easy-to-install components
GRID
3
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
L1 and L2-series low voltage capacitor units
Product features
Capacitor elements made of metallized polypropylene
film are self-healing and dry without impregnation liquid.
Each capacitor element is individually protected with
patented internal fuse protection.
Capacitors come with internal discharge resistors up
to 690 V (3min. 75 V) and terminal boxes (IP42) or
without terminal box (IP00). Electronic discharge
devices up to 550 V are available.
Standard series, for 50 Hz or 60 Hz frequencies, are
available for the following voltages: 220, 230, 240, 380,
400, 415, 440, 480, 525, 600, 660 and 690 V.
Other voltages up to 1000 V are available on request.
Applications
• All kinds of capacitor banks
Typical Alstom Grid customers
• Panel builders
• LV switchboard manufacturers
Customer advantages
• Easy and robust cable termination
• Internal discharge resistors
• Simple, safe and solid construction
• Self-healing
• Easy-to-install components
4
Technical data
Rated voltage
200 V to 1000 V
Rated frequency
50 Hz or 60 Hz
Rated power
2.5 to 125 kvar
Output
3- or 1-phase applications
Capacitance tolerance
- 5 to +10%
Insulation level
4.1 kV (≤ 690 V) or
5 kV (> 690 to 1000 V)
Continuous overvoltage
1.1 x UN
Continuous overcurrent
1.3 x IN
Power losses
≤ 0.4 W/kvar
(with discharge resistors)
Mounting arrangement
indoor
Enclosure IP class
IP00 or IP42
Temperature class
- 40° C as standard
(- 5/D on request)
Container
Painted steel container
Weight
2.8 to 25 kg
Color
RAL7032 (light grey)
Standards
IEC 60831 - 1&2
GRID
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
Electronic discharge devices
Product features
• Connection through 3-phase diode bridge
• When a capacitor is connected to AC then a discharge circuit is in
very high resistance mode
• When the AC supply is switched off then a discharge circuit is
supplied by DC and automatically set to discharge mode, discharging
through the power resistor
• If AC is reconnected before discharging is completed, discharging is
automatically stopped and the discharge circuit returns to a very high
resistance mode
Applications
• Fast discharge in low voltage capacitor units
up to 550 V
Typical Alstom Grid customers
• Panel builders
• LV switchboard manufacturers
Customer advantages
• Compact
• Light
• Faster than traditional discharge resistors
• Saves energy, no loss of power
• Compatible with any LV capacitor units
• Reliable
• Patented
Technical data
Rated voltage
200 V to 550 V
Rated frequency
50 Hz or 60 Hz
Mounting arrangement
indoor
Dimensions (wxdxh)
102 x 12 x 32 mm
Weight
50 g
Color
RAL7032 (light grey)
GRID
5
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
XKIB iron core blocking reactors
Product features
Energy needs to be saved – everywhere. Better electrical efficiency
comes from modern technology, frequency converters, uninterruptible
power supplies and other power electronic devices. The main concern is
harmonic currents in the supply system.
Given the pressure to compensate reactive power, harmonics may
cause resonance with the supplying transformer and capacitors.
The solution is to install blocking reactors in series with capacitors.
The detuned system design keeps the tuning frequency below the
lowest harmonic in the system. Reactive power at the fundamental
frequency is possible, with no risk of resonance.
Applications
• All types of detuned capacitor banks
Typical Alstom Grid customers
• Panel builders
• LV switchboard manufacturers
Customer advantages
• XKIB iron core blocking reactors are designed to work together with
our capacitor banks, resulting in a number of advantages
• Optimized size, weight and losses (MultiCap design)
• Long operating time (high quality insulation and
tested temperature rise)
• Optimized compensation result (adjusted tuning frequency and
high linearity)
• Easy-to-install components
6
Technical data
Rated voltage
200 V to 690 V
Rated frequency
50 Hz or 60 Hz
Rated power
5 to 75 kvar
Inductance tolerance
± 3%
Tuning frequency
6, 7, 13 or 14%
Insulation level
3 kV
Mounting arrangement
indoor
Enclosure IP class
IP00, vertical position
Temperature category
F
Standards
IEC 60289
GRID
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
Wall mounted automatic capacitor banks
Product features
Automatic capacitor banks are used for centralized power factor
correction at the main and sub distribution boards. Power factor
correction means that reactive power charges imposed by electricity
utilities can be avoided. Automatic capacitor banks consist of steps
controlled by a reactive power controller, which ensures that the
required reactive power is always connected to the system.
In Alstom Grid’s wall-mounted automatic capacitor banks,
all components (capacitor units, contactors and fuses) are built into a
compact steel case. This makes installation easy. Capacitor banks can
also be easily extended if necessary. Extension is allowed within the
limits of the cabling recommendations.
Applications
• Reactive power compensation in low voltage networks
without harmonics
• Centralized
• Usually connected into the main board or sub board
Technical data
Rated voltage
400 V to 690 V
Rated frequency
50 Hz or 60 Hz
Rated power
15 to 100 kvar
Number of steps
1 to 5
Capacitance tolerance
- 5% /+ 10%
Tuning frequency
-
Insulation level
3 kV
Continuous overvoltage
1.1 x UN
Continuous overcurrent
1.3 x IN
Customer advantages
Power losses
< 1.3 W
• Small space requirement 600 x 300 x 1000 mm (wxdxh)
• Wide range of cable connections
• Expandability
Mounting arrangement
indoor
Enclosure IP class
IP30
Temperature class
Average 24h:
Average 1 year:
0° C to + 40° C
+ 30° C
+ 20° C
Dimensions (wxdxh)
600 x 300 x 1000 mm
Weight
45 to 65 kg
Typical Alstom Grid customers
• Small commercial premises
• Small industries of all kinds
• Power utilities
• Contractors
Color
RAL7032 (light grey)
Standards
IEC 60831 - 1&2, EN 60439 - 1
GRID
7
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
Fixed detuned filter capacitor banks
Product features
Power transmission and distribution networks are designed to operate
with sinusoidal voltage and current having a constant frequency.
However, there are a number of non-linear loads, such as thyristor
drives and converters, that generate harmonics on the network,
causing distortion in the voltage and current waveforms.
The natural frequency in the resonant circuit formed by the capacitance
of the power capacitor and the network inductance may match a
harmonic frequency. If there is a harmonic current source for that
particular harmonic frequency in the network, the harmonic current of
this frequency may reach values as high as 20 times the normal level.
The voltage and current waveforms are distorted due to the amplified
harmonics caused by the resonance. This leads to further current and
voltage distortions.
Power factor correction by conventional capacitors is not possible in
systems affected by harmonics.
Applications
• Compensation of the reactive power in individual, standard-power
loads or groups of loads in networks affected by harmonics
• Used to compensate stable reactive power in the networks affected
by harmonic
• Usually connected in parallel with the load switching on and off
simultaneously with the load
Typical Alstom Grid customers
• Industries of all kinds
• Contractors
Customer advantages
• Small and robust construction
• Low losses
• For individual loads
• IN-OUT (passing) cabling
8
Technical data
Rated voltage
400 V to 690 V
Rated frequency
50 Hz or 60 Hz
Rated power DFC 0607-series
≤ 50 kvar
Rated power DFL 0611-series
50 to 100 kvar
Rated power DFL 0612-series
100 to 150 kvar
Tuning frequency
7% or 12.6%
(other frequencies on request)
Insulation level
3 kV
Continuous overvoltage
1.1 x UN
Harmonic dimensioning
according to IEC 1000 - 2 - 2
Mounting arrangement
indoor
Enclosure IP class
IP32
Temperature class
Average 24h:
Average 1 year:
0° C to + 40° C
+ 35° C
+ 25° C
Dimensions (wxdxh)
DFC 560 x 475 x 660 mm
DFL 600 x 600 x 1100 mm or 1200 mm
Weight
DFC ≤ 83 kg, DFL ≤ 200 kg
Color
RAL7032 (light grey)
Standards
IEC 60831 - 1&2, EN 60439 - 1
GRID
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
DW-series detuned filter capacitor banks
Product features
Alstom Grid DW-series automatic capacitor banks with blocking
reactors are intended for power factor correction in systems where
harmonic distortion is present.
The new modular and compact design saves space and is available
with options for wall or floor monting. The DW-series is available in
two variants, standard and extendable. The extendable type includes
space for fast and easy increase of the output of the c-bank. Reactive
power compensation is controlled with the N-6 high performance
reactive power controller.
Power factor correction by means of conventional capacitor banks
is not possible in systems affected by harmonics. This is because the
harmonic currents are amplified in the parallel resonant circuit formed
by the capacitor and the network. As a result, current and voltage
distortion are further increased.
Wall or floor mounted detuned filter capacitor banks are manufactured
for 400 V/50 Hz networks with 141 Hz and 189 Hz tuning frequencies.
Other configurations are available to order.
Applications
• Power factor correction in distorted networks
Technical data
Rated voltage
400 V to 690 V
Rated frequency
50 Hz or 60 Hz
Typical Alstom Grid customers
Rated power
15 to 75 kvar
• All kinds of commercial buildings
• Small industries
• Contractors
Number of steps
3 to 4
Tuning frequency
7% or 12.6%
Insulation level
3 kV
Continuous overvoltage
1.1 x UN
Harmonic dimensioning
according to IEC 1000 - 2 - 2
Mounting arrangement
indoor, on floor or wall
Customer advantages
• Compact
• Wall or floor mounting
• Optimized for small steps/outputs
Enclosure IP class
IP20C
Temperature class
Average 24h:
Average 1 year:
0° C to + 40° C
+ 35° C
+ 25° C
Dimensions (wxdxh)
750 x 320 x 1200 mm
Weight
80 to 130 kg
Color
RAL7032 (light grey)
Standards
IEC 60831 - 1&2, EN 60439 - 1
GRID
9
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
D-series detuned filter capacitor banks
Product features
Power transmission and distribution systems are designed to operate
with sinusoidal voltage and current having a constant frequency.
When non-linear loads – such as thyristor drives and converters –
are connected to the system, harmonics are generated, causing voltage
and current distortion.
Capacitor capacitance and network inductances may form a parallel
resonant circuit, where harmonic currents may be as much as 20 times
the normal level. Should the natural frequency of the resonant circuit
match an existing harmonic frequency, the current distortion caused by
resonance leads to further voltage distortion. Power factor correction
by means of conventional capacitors is not possible in systems affected
by harmonics.
In systems where harmonics are present, power factor correction
should be done with detuned filters. These consist of capacitors and
reactors connected in series, capable of compensating reactive power
at fundamental frequency without amplifying the harmonics.
Technical data
Rated voltage
400 V to 690 V
Rated frequency
50 Hz or 60 Hz
Rated power
45 to 450 kvar
Number of steps per cubicle
3 to 7
Tuning frequency
7% or 12.6%
(other frequencies on request)
Insulation level
3 kV
Typical Alstom Grid customers
Continuous overvoltage
1.1 x UN
• Commercial premises of all kinds
• Industries of all kinds
• Contractors
Harmonic dimensioning
according to IEC 1000 - 2 - 2
Mounting arrangement
indoor
Enclosure IP class
IP20C
Temperature class
Average 24h:
Average 1 year:
0° C to + 40° C
+ 35° C
+ 25° C
Dimensions (wxdxh)
(option height 2000 mm)
(option height 2000 mm)
(option height 2000 mm)
600 x 600 x 1800 mm
800 x 600 x 1800 mm
1000 x 600 x 1800 mm
1200 x 600 x 1800 mm
Weight
180 to 610 kg
Color
RAL7032 (light grey)
Standards
IEC 60831 - 1&2, EN 60439 - 1
Applications
• Power factor correction in distorted networks
• Centralized compensation
• Used in networks affected by harmonics
• Detuned filter is usually connected into the main board or sub board
Customer advantages
• Low losses
• Modular, clear construction
• Extendability
10
GRID
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
Third harmonic filter capacitor banks
Product features
Harmonic filters are usually designed on a case-by-case basis according
to the dimensions and assembled from standard components.
This guarantees the best reactive power compensation and harmonic
filtering with reasonable investment costs.
Computers and other loads with SMPS (Switch Mode Power Supply)
generate third harmonic current. This causes problems to all loads and
networks.
All harmonic currents cause both current and voltage distortion.
In addition, third harmonic currents accumulate in the neutral wire,
increasing the risk of overloading and causing the magnetic field to
have the frequency of 150 Hz or 180 Hz. By filtering the third harmonic
out of the network these problems can be totally eliminated.
Applications
• Improving power quality
• Power factor correction
Typical Alstom Grid customers
• Commercial premises of all kinds
• Greenhouses
• Contractors
Customer advantages
• Reduces 3rd harmonic current
in both phases and neutral
• Nokian Capacitors Ltd.
patented capacitor/reactor series connection
Technical data
Type
3HF50/400–50/150–108/77–0816 3HF35/400–50/150–127/116–0816 3HF15/400–50/150–50/44–0812S
Nominal Voltage
400 V
400 V
400 V
Fundamental frequency
50/60 Hz
50/60 Hz
50/60 Hz
Reactive Power
50 kvar
35 kvar
15 kvar
3rd harmonic current phase/neutral 77/230 A
116/348 A
44/132 A
Mounting arrangement
indoor, on floor
indoor, on floor
indoor, on wall
Enclosure IP class
IP20C
IP20C
IP20C
Temperature class
Average 24h:
Average 1 year:
0° C to + 40° C
+ 35° C
+ 25° C
0° C to + 40° C
+ 35° C
+ 25° C
0° C to + 40° C
+ 35° C
+ 25° C
Dimensions (wxdxh)
800 x 600 x 1600 mm
800 x 600 x 1600 mm
750 x 320 x 1200 mm
Weight
300 kg
310 kg
130 kg
Color
RAL7032 (light grey)
RAL7032 (light grey)
RAL7032 (light grey)
Standards
IEC 60831 - 1&2, EN 60439 - 1
IEC 60831 - 1&2, EN 60439 - 1
IEC 60831 - 1&2, EN 60439 - 1
GRID
11
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
F-series harmonic filter capacitor banks
Product features
Power transmission and distribution systems are designed for
operation with sinusoidal voltage and current waveforms at a constant
frequency. However, when non-linear loads – such as thyristor drives,
converters and arc furnaces – are connected to the system, excessive
harmonic currents are generated, causing both current and voltage
distortion.
Harmonic filters can be operated in the same way as automatic
capacitor banks: they are controlled by means of a power factor
controller according to reactive power requirements.
Harmonic filters are custom designed for each application using
standard components. This ensures that the best possible power factor
correction and filtering characteristics are achieved with a reasonable
investment.
Applications
• Improving power quality and power factor correction
• Used to filter harmonics
• Usually connected into the main or sub board
Technical data
Typical Alstom Grid customers
• Commercial premises of all kinds
• Industries of all kinds
• Contractors
Customer advantages
• Filter system for 5 , 7 , 11 and 13 harmonics
controlled by power factor controller
• Reduced harmonics
• Customized for your network
• Improves the quality of the electricity
th
12
th
th
th
Rated voltage
≤ 750 V
Fundamental frequency
50 Hz or 60 Hz
Filter tuned to
5th, 7th, 11th or 13th
order of harmonics
Reactive power per cubicle
60 to 300 kvar
Insulation level
3 kV
Mounting arrangement
indoor
Enclosure IP class
IP20C
Temperature class
Average 24h:
Average 1 year:
0° C to + 40° C
+ 35° C
+ 25° C
Dimensions (wxdxh)
600 x 600 x 2000 mm
800 x 600 x 2000 mm
Weight
180 to 500 kg
Color
RAL7032 (light grey)
Standards
IEC 60831 - 1&2, EN 60439 - 1
GRID
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
DT-series thyristor switched capacitor banks
Product features
Thyristor switched capacitor banks with high-speed switching
capability are designed to support the supply voltage of distribution
systems and to correct the power factor of connected loads.
Thyristor switches do not suffer from mechanical wear, operate without
noise, and are capable of practically transient-free switching.
For power factor correction with minimal delay, control signals can be
transmitted to the control system of the capacitor bank straight from
the loads.
Applications
• For power factor correction where there are fast variable loads,
such as harbor cranes and lifts
Typical Alstom Grid customers
• Harbors
• Companies with welding machines
• Companies with lifts
• Machine builders
Customer advantages
• Small dimensions
• Fast response time
• Extendability
• Low switching transient reduction
• Supports the supply voltage of the distribution system and
corrects the power factor of connected loads
• Does not cause transient during switching operations
• Control by the reactive power of the network
(response time < 20 ms)
• Control signal can also be taken directly from the load
to be compensated
Technical data
Rated voltage
400 V to 690 V
Rated frequency
50 Hz or 60 Hz
Rated power
50 to 450 kvar
Number of steps
2 to 12
Tuning frequency
7% or 12.6% (other frequencies on
request)
Insulation level
2.5 kV
Continuous overvoltage
1.1 x UN
Harmonic dimensioning
according to IEC 1000 - 2 - 2
Mounting arrangement
indoor
Enclosure IP class
IP20C
Temperature class
Average 24h:
Average 1 year:
0° C to + 40° C
+ 35° C
+ 25° C
Dimensions (wxdxh)
1000 x 600 x 2000 mm
1200 x 600 x 2000 mm
Weight
250 to 700 kg
Color
RAL7032 (light grey)
Standards
IEC 60831 - 1&2, EN 60439 - 1
GRID
13
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
MaxSine active harmonic filters
Product features
The most effective way to eliminate harmonics is MaxSine active
harmonic filter.
Applications
• Improving power quality and power factor correction in real time
Typical Alstom Grid customers
• Hospitals
• Companies with fast-changing loads
(welding machines, lifts)
• Windparks
• All users with fast variable loads
Customer advantages
• Harmonic filtering
• Power factor correction
• Flicker compensation/active peak leveling
• Real time filtering and compensation
• Filters all harmonics up to 50
• Network impedance does not affect the filtering result
Technical data
MaxSine
Rated output
Line current
Neutral current
at 400 V
L1, L2, L3
N
(kVA)
(A)
35
50
MaxSine 100A-3L
70
MaxSine 400A-3L
280
MaxSine 100A-4Lx1
70
Type
MaxSine 50A-3L
14
Weight
Width
Depth
Height
(A)
(kg)
(mm)
(mm)
(mm)
-
150
600
500
1200
100
-
240
600
500
1900
400
-
900
1200
800
2100
100
100
350
600
500
2100
GRID
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
PRODUCT GUIDE
Power factor controllers N-6, N-12 and NC-12
Product features
Alstom Grid power factor controllers provide your network with
efficient reactive power compensation, measurement and supervision.
Improved user-friendliness and condition monitoring
Improved user-friendliness due to multilingual user interface, clear text
and symbol messages, graphics, alarm log and communication. Alstom
Grid’s power factor controller offers advanced condition monitoring for
your network as well as for the capacitor bank.
The supervision and condition monitoring functions add to the
simplified programming with intelligent self set-up to ensure optimal
use of the reactive power compensation system.
Applications
• Automatic power thyristor control of low and medium voltage
capacitor banks (tuned, detuned and conventional)
N-6 & N-12
Maximum 6 or 12 capacitor steps
Typical Alstom Grid customers
Microprosessor-based technology
• Panel builders
• LV switchboard manufacturers
C/K auto search
Accuracy class 2.5%
Ambient temperature 0 to + 60° C
Protection class IP41 at panel and IP20 DIN-rail installation
Customer advantages
• Optimized user interface for easy operation
• Intelligent stepping algorithm for optimum step utilization
and fast response
• All traditional stepping sequences also availabe
• Quick and simple mounting and wiring
• Intensive to current transformer polarity and phase sequence
• Monitoring and protection
• User-friendly
• Several language versions
• Robust constructions
• Various step programs
Measurements; cos, P, Q, S, THD(U), temperature
NC-12
Maximum 12 capacitor steps
Microprosessor-based technology
C/K auto search
Measures / Alarms of UTHD
Separate C/K setting for inductive and capacitive side
Accuracy class 1.5%
Ambient temperature 0 to + 60° C
Protection class IP41 at panel and IP20 DIN-rail installation
Measurements; cos, Ip, Iq, Irms/I1, P, Q, S,THD(U), harmonics
Communication RS485/modbus via optional auxiliaries
GRID
15
PRODUCT GUIDE
NCM-20 digital capacitance meters
Product features
Capacitance meter NCM-20 is designed to measure capacitor units
in a capacitor bank without removing any connecting wire between
capacitor units. This measurement is used to locate capacitor units
with blown fuses.
NCM-20 has 3 capacitance ranges and a 3 ½-digit display. Thus it is
possible to achieve a 0.05% resolution between 1 and 2000 µF.
NCM-20 has two voltage clips by which the test current is supplied to
the bank. The voltage output is short-circuit proof.
The current in each capacitor unit is measured with a current
clamp. The capacitance of the unit is shown on the digital display in
microfarads. Thus the measurement is made very rapidly without any
manual balancing procedure.
Applications
• Service and maintenance
Typical Alstom Grid customers
Technical data
• Power utilities
• Consultant companies
• Service and maintenance companies
Range Display
2000 µF (0 to 1999 µF) s
µF (0 to 199.9 µF)
20 µF (0 to 19.99 µF)
Loading capacitance
2000 µF max.
Measuring frequency
111.86 Hz
Measuring voltage
1.41 Vrms
Accessories supplied with every meter
Error
±1% of reading
±2% digits
Resolution
0.05% between 1 and 2000 µF
Temperature range
-10 to + 50° C
Dimensions
450 x 350 x 250 mm
• Clamp-on current transformer (100 mm opening)
• Voltage clips with 1 m cable and connector
• 1 carrying strap for display unit
• 1 suspension strap for generator unit
• Instruction manual
• Battery charger 230VAC/18VDC 50/60 Hz
Weight
approx. 9.5 kg
Alstom Grid Worldwide Contact Centre
www.grid.alstom.com/contactcentre
Tel: +44 (0) 1785 250 070
www.grid.alstom.com
GRID
GRID-Products-L3-LV-Guide-71963-V3-V2010_08-EN © - Alstom, the Alstom logo and any alternative version thereof are trademarks and service marks of Alstom. The other names mentioned, registered or not, are the property of their respective companies. The technical
and other data contained in this document are provided for information only. Neither Alstom, its officers nor employees accept responsibility for or should be taken as making any representation or warranty (whether express or implied) as to the accuracy or completeness
of such data or the achievements of any projected performance criteria where these are indicated. No liability is accepted for any reliance placed upon the information contained in this brochure. Alstom reserves the right to revise or change these data at any time without
further notice. Printed on paper made with pure ECF (Elemental Chlorine Free) ecological cellulose produced from trees grown in production forests under responsible management, and selected recycled three-layer fibres.
LOW VOLTAGE COMPENSATION AND FILTERING PRODUCTS
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