SF circuit breakers(catalogue)

SF circuit breakers(catalogue)
Medium Voltage Distribution
SF circuit breakers
up to 40.5 kV
fixed and withdrawable versions
Catalogue
2010
SF circuit breakers
SF1 circuit breakers fixed version from 12 kV to 36 kV
PE56503
One range of comprehensive and proven
three-pole circuit breaker units for indoor
installation using SF6 technology.
Both compact and dependable, it is ideally
suited to the most demanding applications.
This circuit breaker range meets
IEC standard 62271-100.
PE56501
SF2 circuit breakers fixed version from 24 kV to 40.5 kV
PE56502
SF F400 circuit breakers withdrawable version
from 24 kV to 40.5 kV
2
AMTED304010EN.indd
General contents
AMTED304010EN.indd
General presentation
2
Panorama
5
SF1 and SFset circuit breakers
fixed version
7
SF2 circuit breakers
fixed version
25
SF F400 circuit breakers
withdrawable version
35
1
General presentation
SF circuit breakers
The advantages of proven technology
With over 37 years’ industrial experience in
SF6 techniques and over 300,000 installed
devices throughout the world,
Schneider Electric is today one of the
foremost manufacturers of SF6 switchgear.
Schneider Electric has developed a wide
range of high performance and reliable
devices operating faultlessly on all
5 continents.
Continuously increasing its performance,
the company maintains a very high level
of innovation in its offer.
Safety
The breaking medium is sulfur hexafluoride (SF6) used at low pressure. The insulating enclosure containing the circuit breaker pole(s) is equipped with a safety membrane. In addition, the rated characteristics, breaking the rated current under the rated voltage, are generally maintained at zero relative bars of SF6. Reliability
The motor-charged spring stored energy operating mechanism is a key factor
of device reliability: Schneider Electric cumulates 37 years’ experience with
this type of mechanism, 300,000 of which are already in operation.
Schneider Electric’s mastery of design and the testing of sealed systems guarantees
sustained device performance for at least 30 years.
Increased endurance
61051N
The mechanical and electrical endurance of Schneider Electric SF6 breaking devices are in conformity with the most demanding specifications recommended by the IEC.
These devices therefore meet requirements for even the most exposed of networks.
Less maintenance
Throughout the device’s service life, which in normal operating conditions may be at least 30 years, the only maintenance required is on the mechanical operating mechanism, once every 10 years or every 10,000 operations. Although no maintenance is performed on poles, a diagnosis is possible:
b contact wear can be checked by external pole measurement
b SF6 pressure can be continually monitored by a pressure switch.
Environmentally-friendly
Schneider Electric devices have been designed to ensure protection of
the environment:
b the materials used, both insulating and conductive, are identified and easy
to separate and recycle
b the SF6 gas is under control from production through to the circuit breaker’s end
of life. In particular it can be recovered at the end of the circuit breaker’s life and
re-used after treatment in line with the new European directive
b an end of life manual for the product details procedures for dismantling and
recycling components.
Quality Assurance
DE55746
DE55745
During production, each circuit breaker undergoes systematic routine tests
in order to check quality and conformity:
b pole sealing check
b checking the correct mechanical operation of the device,
b plus its associated locking mechanisms
b checking simultaneous closing of contacts
b checking power frequency insulation level
b checking main circuit resistance
b checking auxiliary circuit insulation
b checking auxiliary circuit electrical resistance
b checking switching speeds
b checking the switching cycle
b measuring the switching times.
The results are recorded on the test certificate for each device
which is initialed by the quality control department.
Certification
The quality system for the design and production of SF range circuit breakers is
certified in conformity with ISO 9001: 2000 quality assurance standard requirements.
The environmental management system adopted by Schneider Electric production
sites for the production of SF range circuit breakers has been assessed and judged
to be in conformity with requirements in standard ISO 14001.
2
AMTED304010EN.indd
SF circuit breakers
General presentation
Breaking principle
Breaking principle: puffer type
DE51238
b the circuit breaker is closed
DE57439
SF circuit breakers use the puffer principle with SF6 gas.
This methods cools and extinguishes the electrical arc as it passes through zero current by puffing a gas compressed by a piston attached to the moving contact. The gas is channeled by an insulating nozzle towards the tubular arcing contacts that are used as an exhaust.
This breaking technique is used for high-performance breaking applications (40.5 kV-31.5 kA) and has been used for the past 37 years.
The operating sequence in a puffer-type breaking chamber with the moving part actuated by a control mechanism is as follows:
b following an opening order the main contacts
separate (a) and the current is directed into the
breaking circuit (b). When the main contacts start
to open the piston (c) slightly compresses the SF6 gas
in the compression chamber (d)
a
DE57440
c
�
�
DE51241
e
c
AMTED304010EN.indd
b an electrical arc appears on separation of the arcing
contacts. The piston (c) continues its travel downwards.
A small quantity of the gas channeled by the insulating
nozzle (e) is injected towards the arc. For low current
breaking, the arc is cooled by forced ventilation.
However, for high currents the thermal expansion
moves the hot gases towards cooler parts
in the breaking unit.
The distance between arcing contacts becomes
sufficient to allow breaking of the current when it
passes through zero due to the dielectric properties
of the SF6 gas
b the moving parts finish their movement and injection
of cold gas continues until the contacts are fully open.
The circuit breaker is open.
3
SF circuit breakers
Panorama
Circuit breakers
SF range circuit breakers
SF1 fixed
SFset fixed
SF2 fixed
Side or front operating mechanism
Side or front operating mechanism
with integrated VIP
Front operating mechanism
25 kA
from 12.5 to 25 kA
from 12.5
to 40 kA
630 A
from 400 to 1250 A
from 630 to 3150 A
Rated voltage Ur (kV, 50/60 Hz)
Rated short-circuit breaking current (Isc)
25 kA
from 12.5 to 25 kA
from 25
to 40 kA
31.5 kA
Rated current (Ir)
630 A
4
from 400 to 1250 A
2500 A
AMTED304010EN.indd
SF circuit breakers (cont.)
Panorama
Protection, monitoring and control
SFset circuit breakers
SF1/SF2/SF F400 C. B.
on
1>51
1 > >51 1o > 51 1o > >51
I1 =
I2 =
I3 =
0off
ext
Ion Trip
165A RMS
166A RMS
167A RMS
SF F400 withdrawable
VIP300P
Sepam series 20
Front operating mechanism
for phase protection
for normal applications
VIP300LL
Sepam series 40
for phase and
earthing protection
for demanding applications
Sepam series 80
for customized applications
Separate catalogue
from 25 to 40 kA
31.5 kA
1250 and 2500 A
1250 A
AMTED304010EN.indd
5
6
AMTED304010EN.indd
SF1 and SFset
circuit breakers
fixed version
Contents
Presentation AMTED304010EN.indd
9
General characteristics 10
Description of functions
RI stored energy operating mechanism
Wiring diagram
Opening circuit
Remote control
Indication and locking/interlocking
12
12
12
13
14
15
Protection, monitoring and control
VIP300 protection unit
Trip curves for VIP300P and VIP300LL
Current sensors and test unit for VIP300
16
16
17
18
Dimensions
19
Order form
22
7
8
AMTED304010EN.indd
Presentation
SF1 and SFset
circuit breakers
fixed version
Description of the device
PE56505
The basic withdrawable version of the SF circuit breaker comprises:
b 3 main independent poles, that are mechanically linked and each comprising
a “sealed pressure system” type insulating enclosure. The sealed enclosure is filled
with low pressure SF6 gas
b a stored energy operating mechanism of manual RI type (that can be electrically
operated as an option)
This gives the device an opening and closing speed that is independent
of the operator, for both electrical and manual orders.
When equipped with an electrical operating mechanism, the circuit breaker can be
remotely controlled and it is possible to carry out reclosing cycles.
b a front panel housing the manual operating mechanism and status indicators
b upstream and downstream terminals for the power circuit connection
b a terminal block for connection of external auxiliary circuits.
According to its characteristics, the SF circuit breaker is available either in frontal
version or in lateral version.
SF1 circuit breakers with a B1 side operating mechanism
PE56504
Each device can be optionally equipped with:
b an electrical operating mechanism
b a support frame fitted with rollers and floor securing brackets for a fixed installation
b locking of the circuit breaker in the open position by a keylock installed on the
control panel
b a pressure switch for the high performance versions
b a Harting 42-pin type LV connector.
DE57400
The SFset includes an independent protection chain
The SFset is provided with a fully autonomous integrated protection chain
(with a VIP type control unit) operating without an auxiliary power source.
The VIP protection unit exists in two models: VIP300P and VIP300LL.
kA
25
VIP300LL
20
16
12,5
VIP300P - VIP300LL
0
SFset circuit breakers with a B1 side operating mechanism
17,5
24
kV
DE57401
Depending on the model, the unit provides protection against phase over-currents and earthing faults. VIP protection units are associated with functional current sensors. Two interchangeable sensors, CSa and CSb, are sufficient to cover all requirements from 10 to 1250 A.
SFset is delivered equipped and cabled with its protection chain, this simplifies panel builders’ installation work.
SF1
Mitop
CS
VIP
SFset schematic diagram
Applications
SF circuit breakers are 3-pole MV circuit breakers for indoor installation. They are mainly used for switching and protection of networks from 12 to 36 kV in primary and secondary power distribution.
Because the SFset protection chain is autonomous in terms of power, this circuit breaker is particularly suited to certain dispersed installations on the network. The autocompression breaking technique used in these circuit breakers means that making or breaking all types of compacitive or inductive currents can be achieved without dangerous overvoltages for the switchgear connected to the network.
The SF circuit breaker is therefore well suited to operating capacitor banks.
AMTED304010EN.indd
9
General characteristics
SF1 and SFset
circuit breakers
fixed version
Electrical characteristics according to IEC 62271-100
PE56503
SF1
Rated voltage
Ur
kV 50/60 Hz
12
17.5
- power frequency withstand
Ud
kV 50 Hz 1min
28
38
- lightning impulse withstand
Up
kV peak
75
95
Rated current
Ir
A
400
–
–
b
–
630
b
b
b
b
1250
–
b
b
b
25
12.5
20
25
Insulation voltage
Short circuit current
Isc
kA
Short time withstand current
Ik/tk
kA/3 s
Short-circuit making current
Ip
kA peak
50 Hz
60 Hz
Rated switching sequence
Phase to phase
Operating times
Service temperature
T
12.5
20
25
31.3
50
62.5
52
65
65
32.5
O-3 min-CO-3 min-CO
b
b
O-0.3 s-CO-3 min-CO
b
b
O-0.3 s-CO-15 s-CO
b
b
220
–
b
b
b
250
b
b
b
b
280
–
–
–
–
350
–
–
–
–
380
–
–
–
–
A1 lateral (*)
–
b
b
b
B1 lateral (*)
–
b
b
b
C1 frontal (*)
–
b
b
b
For SM6 switchgear
b
–
b
–
Opening (ms)
< 50
Breaking (ms)
< 60
Closing
< 65
mm
Operating mechanism
25
62.5
(ms)
°C
–25 to +40
Mechanical endurance
Class
M2
Number of switching operations
10,000
Electrical endurance
Class
E2
Capacitive current breaking capacity
Class
C2
b Available
– Not available
(*) See chapter “Dimensions”.
Specific applications
Switching and protection of capacitor banks
SF range circuit breakers are particularly well suited to switching and protection
of capacitor banks; they are classed C2 according to standard IEC 62271-100.
Tests carried out according to the standard for breaking at 400 A with making
and breaking cycles in case of a capacitor bank with a making current of 20 kA.
Additional tests have been carried out: please consult us.
10
AMTED304010EN.indd
General characteristics (cont.)
SF1 and SFset
circuit breakers
fixed version
PE56504
SFset
24
36
12
17.5
24
50
70
28
38
50
125
170
75
95
125
b
b
–
–
b
–
–
–
–
–
b
–
b
b
–
–
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
–
b
b
b
b
b
b
b
12.5
16
20
25
12.5
16
20
25
25
12.5
20
25
12.5
16
20
25
12.5
16
20
25
12.5
16
20
25
25
12.5
20
25
12.5
16
20
25
31.3
40
50
62.5
31.3
40
50
62.5
62.5
31.3
50
62.5
31.3
40
50
62.5
32.5
41.6
52
65
32.5
41.6
52
65
65
32.5
52
65
32.5
41.6
52
65
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
–
–
–
–
–
–
–
–
–
b
b
b
–
–
–
–
b
b
b
b
–
–
–
–
b
b
b
b
b
b
b
b
b
b
b
b
–
–
–
–
–
–
–
–
b
b
b
b
–
–
–
–
b
–
b
b
–
–
–
–
–
–
–
–
–
–
–
–
b
b
b
b
–
–
–
–
–
–
–
–
b
b
b
b
b
–
b
b
–
b
b
b
b
b
b
b
b
b
b
b
b
–
b
b
–
b
b
b
b
b
b
b
b
b
b
b
b
–
b
b
–
b
b
b
b
b
b
b
b
b
b
–
b
b
b
b
b
–
b
–
b
b
b
–
< 50
< 50
< 60
< 60
< 65
< 65
–25 to +40
–25 to +40
M2
M2
10,000
10,000
E2
E2
C2
C2
AMTED304010EN.indd
11
Description of functions
SF1 and SFset
circuit breakers
fixed version
RI stored energy operating mechanism
Wiring diagram
PE57164
Manual or electrical operation of the RI stored energy
operating mechanism
This gives the device an opening and closing speed that is independent of the operator whether the order is electrical or manual.
The electrical control mechanism carries out reclosing cycles and is automatically recharged by a geared motor each time after closing. It consists of:
b the stored energy operating mechanism which stores in springs the energy
required to open and close the device
b a manual lever-operated spring arming device
b a geared electrical arming device which automatically re-arms the control
mechanism as soon as the circuit breaker is closed (optional)
b manual order devices by push buttons on the front panel of the device
b an electrical remote closing device containing a release with an antipumping relay
b an electrical opening order device comprising one or several release units which
can be of the following type:
v shunt opening
v undervoltage
v Mitop, a low consumption release, used only with the Sepam 100 LA
protection relay.
b an operation counter
b an “open/closed” position indicator device with a mechanical indicator
b a device for indicating “charged” operating mechanism status by mechanical
indicator and electrical contact (optional)
b a module of 14 auxiliary contacts whose availability varies according
to the diagram used.
DE58090EN
Wiring diagram (principle)
Close CB
Open CB
M
M3
YF +
anti-pumping
Motor
Shunt closing
release
+ anti-pumping
system
YO1
“Control
mechanism
armed”
indicator contact
YO2
Shunt
opening
release
Mitop
YM
Undervoltage
release
Low energy
release
(Mitop)
Changeover
contact
NO
NC
contacts contacts
Remote control
12
AMTED304010EN.indd
Description of functions
SF1 and SFset
circuit breakers
fixed version
Opening circuit
DE57612EN
Composition
(2)
(1) or (3)
The opening circuit can be produced using the following components:
b a shunt opening release (on energizing) (YO1)
b a second shunt opening release (on energizing) (YO2)
b undervoltage release (YM)
b low energy release (Mitop).
Note: see the table of the releases’ combinations page “Order form” .
Shunt opening release (YO1 and YO2)
Energizing this unit causes instant opening of the circuit breaker.
Characteristics
Power supply
Threshold
See “Order form” page
V AC
V DC
V AC
V DC
Consumption
0.85 to 1.1 Ur
0.7 to 1.1 Ur
160 VA
50 W
Operating mechanism
DE58092
Undervoltage release (YM)
Shunt opening release (1)
This release unit causes the systematic opening of the circuit breaker when its
supply voltage drops below a value less than 35% of the rated voltage, even if this
drop is slow and gradual. It can open the circuit breaker between 35% and 70% of
its rated voltage. If the release unit is not supplied power, manual or electrical closing
of the circuit breaker is impossible. Closing of the circuit breaker is compulsory when
the supply voltage of the release unit reaches 85% of its rated voltage.
DE58093
Characteristics
Power supply
Threshold
Consumption
Triggering
Latched
DE58094
Undervoltage release (2)
See “Order form” page
Opening
Closing
V AC
V DC
V AC
V DC
0.35 to 0.7 Ur
0.85 Ur
400 VA
100 W
100 VA
10 W
Low energy release (Mitop)
This specific release unit comprises a low consumption unit and is specifically used
for Sepam 100LA self-powered relays.
Characteristics
Low energy release (3)
Power supply
Threshold
Direct current
0.6 A < I < 3 A
Any tripping due to the Mitop release unit is momentarily indicated by an SDE type
changeover contact (option).
AMTED304010EN.indd
13
SF1 and SFset circuit breakers
fixed version
Description of functions
Remote control
DE57604
Function
Remote control enables the remote opening and closing of the circuit breaker.
Composition
The remote control mechanism comprises:
b an electrical motor with gearing
b a shunt closing release (YF) combined with an anti-pumping device
b an operation counter.
Electrical motor with gearing (M)
The electrical motor carries out the automatic rearming of the stored energy unit as
soon as the circuit breaker is closed. This allows the instant reclosing of the device
after opening. The arming lever is only used as a backup operating mechanism
in the case of the absence of the auxiliary power supply.
The M3 contact indicates the end of arming operations.
Characteristics
DE58096
Operating mechanism
Power supply
Threshold
Consumption
See “Order form” page
V AC/V DC
V AC
V DC
0.85 to 1.1 Ur
380 VA
380 W
Shunt closing release (YF)
Electrical motor with gearing (4)
This release allows the remote closing of the circuit breaker when the operating
mechanism is armed.
Characteristics
DE58092
Power supply
Threshold
Consumption
0.85 to 1.1 Ur
0.85 to 1.1 Ur
160 VA
50 W
The shunt closing release is combined with an anti-pumping relay that enables priority
to be given to opening in the case of a permanent closing order. This thus avoids
the device being caught in an uncontrolled opening-closing cycle.
DE58097
Shunt closing release (5)
See “Order form” page
V AC
V DC
V AC
V DC
Operation counter
Operation counter (6) 14
The operation counter is visible on the front panel.
It displays the number of switching cycles (CO) that the device has carried out.
AMTED304010EN.indd
SF1 and SFset
circuit breakers
fixed version
Description of functions
Indication and locking/interlocking
DE57491
“Open/closed” auxiliary contacts
The number of contacts available depends on the options chosen on the operating mechanism.
In the basic configuration, the circuit breaker’s operating mechanism comprises a total of:
b 5 normally closed contacts (NC)
b 5 normally open contacts (NO)
b 1 changeover contact (CHG).
The usage procedure for auxiliary contacts is given in the following table:
Options
Shunt opening release (each one)
Undervoltage release
Low energy release (Mitop)
DE58098
Operating mechanism
NC contact
0
0
0
NO contact
1
0
0
In order to know the final number of available contacts, you must deduct the total number of contacts included in the circuit breaker (5 NC + 5 NO + 1 CHG), the number of contacts used given in the table above.
E.g.: a circuit breaker equipped with a remote control and a shunt trip unit has the following available contacts:
5 NC + 4 NO + 1 CHG.
With a undervoltage release instead of the shunt trip, this circuit breaker would have
the following available contacts:
5 NC + 5 NO + 1 CHG.
Shunt opening release combination
DE58099
Auxiliary contacts (7)
1st release Shunt opening
release YO1
2nd release
Without
5NC + 4NO + 1CHG
Shunt opening release 5NC + 3NO + 1CHG
YO2
Undervoltage release 5NC + 4NO + 1CHG
YM
Mitop
5NC + 4NO + 1CHG
Undervoltage release
YM
Mitop
5NC + 5NO+ 1CHG
5NC + 4NO+ 1CHG
5NC + 5NO + 1CHG
5NC + 4NO + 1CHG
5NC + 5NO + 1CHG
5NC + 5NO + 1CHG
Locking the circuit breaker in the “open” position
Keylocking kit (8)
AMTED304010EN.indd
This key-operated device allows the circuit breaker to be locked in the “open” position.
The circuit breaker is locked in the open position by blocking the opening push button
in the “engaged” position.
Locking is achieved using a Profalux or Ronis captive key type keylock.
15
Protection, monitoring
and control
SF1 and SFset
circuit breakers
fixed version
VIP300 protection unit
PE56504
The SFset circuit breaker has an integrated and independent
protection system
The SFset circuit breaker comprises an SF1 into which is integrated a protection system
comprising:
b a set of current sensors installed on the lower current terminals of the pole units.
Two interchangeable sensors, CSa and CSb, sufficient to cover all requirements
from 10 A to 1250 A.
b a VIP type protection relay mounted on the control unit.
b a “Mitop” low consumption, release unit installed on the switching device.
The unit is fully independent and functions without an auxiliary power supply.
Operating principle
The protection system is supplied power by sensors which supply:
b the “current” information, processed by the protection unit
b the electrical power required for the whole protection system to operate ;
VIP unit and Mitop release.
All settings are visible and accessible from the front of the device.
SFset with a VIP protection unit installed on the front panel
PE55772
VIP300P and VIP300LL independent protection unit
VIP300LL protection unit
DE57403
DE57402
The VIP300 unit is intended to be installed on distribution networks. It can be used
to protect an MV/LV transformer, to protect the head of an industrial installation,
but also to protect a branch.
The VIP300 provides protection against phase-to-phase faults and against earthing
faults. The choice of trip curves and the large number of settings enable it to be used
in a large number of discrimination arrangements.
The VIP300 is an independent unit supplied power from the current sensors;
it does not require an auxiliary power supply. It activates a Mitop release unit.
The VIP300 exists in 2 models:
b VIP300P: phase protection
b VIP300LL: phase and earthing protection.
t
Mitop
VIP300
t>
t >>
I
1,2 Is 10 Is
Simplified connection arrangement
I >>
Phase and earthing protection curve
Phase protection (VIP300P, VIP300LL)
Phase protection has two independently adjustable thresholds:
b the lower threshold can be chosen to be either definite time or inverse definite time.
It can be executed according to the RI curve.
b the upper threshold is inverse definite time.
The definite time curves are in conformity with standard IEC 60255-3. They are either of type inverse (SI), very inverse (VI) and extremely inverse (EI).
Earthing protection (VIP300LL)
Earthing full protection functions with the measurement of residual current:
this is carried out based on the sum of secondary currents in the sensors.
As for phase protection, earthing protection has two independently adjustable
thresholds.
Indication
Two indicators show the origin of the release (phase or earth). They stay in position after breaking the release unit power supply.
Two LED indicator lights (phase and earth) show that the lower threshold has been exceeded and that the time delay has been started. 16
AMTED304010EN.indd
Protection, monitoring
and control
SF1 and SFset
circuit breakers
fixed version
Trip curves
VIP300P and VIP300LL
DE57404
Trip curves
t>
t>
t >>
t >>
Is 1.2 Is
10 Is I >>
Is
With a definite time lower threshold
I>
I >>
With an inverse definite time lower threshold
DE7405
Definite time curves
t (s)
t (s)
100
100
10
10
6
4
3
2
1.5
1
1
6
1
0.6
0.4
0.3
0.2
0.15
0.1
0.07
0.05
0.1
1
DE57406
RI curve
1 1.2 Is
t (s)
100
100
10
10
6
4
3
2
1.5
1
0.6
0.4
0.3
0.2
0.15
0.1
0.07
0.05
1
0.1
0.01
AMTED304010EN.indd
100
t (s)
1000
VI curve
10
SI curve
1000
1 1.2 Is
I/Is
0.01
100
10
0.6
0.4
0.3
0.2
0.15
0.1
0.07
0.05
0.1
I/Is
0.01
4
3
2
1.5
1
10
6
4
3
2
1.5
1
0.6
0.4
0.3
0.2
0.15
0.1
0.07
0.05
1
0.1
I/Is
100
0.01
1 1.2 Is
10
I/Is
100
EI curve
17
SF1 and SFset
circuit breakers
fixed version
Protection, monitoring
and control
Current sensors and test unit for VIP300
PE55773
CSa and CSb current sensors for the VIP300
In order to achieve the specified performance levels, the VIP300 protection unit
must be used with the specified sensors. The combination of the unit/sensor
is essential in order to comply with characteristics and in particular with:
b operation throughout the whole range
b response time
b accuracy
b short circuit thermal withstand.
Two interchangeable sensors, CSa and CSb, suffice to cover all requirements
from 10 A to 1250 A.
Cs type current sensors
Sensor selection
Service current (Is)
CSa
CSb
10 A to 200 A
63 A to 1250 A
VAP6 test unit
PE56614
VIP type protection units have a “test”, socket to connect a VAP6 test unit.
This portable unit with its own power supply enables the correct functioning of the protection unit to be checked.
VAP6 test unit
18
AMTED304010EN.indd
Dimensions
SF1 and SFset
circuit breakers
fixed version
Basic fixed unit
DE57407
Operating mechanism on the right hand side (A1)
SF1, SFset
SF1
E
E
SFset
P/D
P/D
H
350
350
L/W
270
DE57408
Operating mechanism on the left hand side (B1)
SF1
SFset
P/D
SF1, SFset
P/D
E
E
H
350
350
270
L/W
DE57409
Operating mechanism on the front (C1)
SF1, SFset
SF1
E
SFset
270
P/D
E
270
P/D
H
345
345
L/W
Dimensions and weights
SF1
Dimensions (mm)
H
W
Operating mechanism on the right or left
17.5
750
993
24
750
1143
36
750
1560
Operating mechanism on the front
17.5
745
766
24
745
886
36
745
927
36
745
1260
SFset
Rated voltage (kV)
D
E
Weight (kg) Dimensions (mm)
H
W
290
290
365
220
280
380
78
80
88
750
750
490
490
559
565
220
280
350
380
78
80
85
88
745
745
Weight (kg)
D
E
993
1143
420
420
220
280
88
90
766
886
620
620
220
280
88
90
For SF circuit breakers with SM6, consult us.
AMTED304010EN.indd
19
Dimensions (cont.)
SF1 and SFset
circuit breakers
fixed version
Fixed unit with support frame
DE57412
Operating mechanism on the right hand side (A1)
SF1, SFset
SF1
E
SFset
P/D
E
P/D
H (1)
775 (1)
775 (1)
L/W
DE57411
Operating mechanism on the left hand side (B1)
SF1
SFset
P/D
SF1, SFset
P/D
E
E
H (1)
775 (1)
775 (1)
L/W
DE57410
Operating mechanism on the front (C1)
SF1, SFset
E
SF1
SFset
P/D
P/D
E
H (1)
775 (1)
775 (1)
L/W
Dimensions and weights
SF1
Dimensions (mm)
H
W
Operating mechanism on the right or left hand side
17.5
1175
1065
24
1175
1215
36
1175
632
Operating mechanism on the front
17.5
1175
853
24
1175
973
36
1175
1347
SFset
Rated voltage (kV)
D
E
Weight (kg) Dimensions (mm)
H
W
600
600
600
220
280
380
103
105
113
1175
1175
600
600
600
220
280
380
103
105
113
1175
1175
Weight (kg)
D
E
1065
1215
600
600
220
280
103
105
853
973
649
649
220
280
103
105
(1) Additional holes, provided on the fixed support frame allow the device to be positioned 215 mm lower.
20
AMTED304010EN.indd
Dimensions (cont.)
SF1 and SFset
circuit breakers
fixed version
Connection
SF1, SFset (B)
Ø 24
M8
DE57413-B
20
DE57414
DE57413-A
Top
Ir y 630 A
SF1, SFset (A)
kA
25
17
8
Ø 40
56
20
16
13 +0.2
0
M8
(B)
20
56
20
(A)
12,5
8
17,5
24
36
kV
24
36
kV
17
+0.2
13 0
20
Ø 40
M8
DE57415
DE57413-B
Ir = 1250 A
SF1, SFset (B)
kA
25
20
56
8
17
(B)
16
+0.2
12,5
13 0
17,5
2 Ø M8
20
18
SF1, insulation y 170 kV impulse
DE57417
DE57416
Bottom
SF1, insulation y 125 kV impulse
25 ± 0,5
2 Ø 10,5
52
SFset
DE57418
20
2 Ø M8
10
Ø 40
20
20
Ø 40
60
75
Note: recommended connection screw M8 class 8.8.
Tightening torque: 28 Nm with contact washer.
AMTED304010EN.indd
21
SF1 and SFset
circuit breakers
fixed version
Order form
Only one of the boxes (ticked X or filled
by
the needed value) have to be considered between each
horizontal line.
Green box X corresponds to none priced functions.
Basic fixed circuit breaker
SF1 lateral/frontal fixed up to 36 kV
Quantity
Rated voltage Ur
(kV)
Impulse voltage Up
(kVbil)
Short-circuit current Isc
(kA)
Rated current Ir
(A)
Frequency
50 Hz
Operating mechanism position
60 Hz
A1
B1
C1
Colour for push buttons and indicators
Push buttons open/close:
Red/black
Indicator open/close:
Black/white
Operating mechanism charged/discharged:
White/yellow
Circuit breaker options
1st opening release (see possible choices in combination table below)
Shunt opening release YO1
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
125 Vdc
Undervoltage release YM
110 Vac (50 Hz)
240 Vac (60 Hz)
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
Mitop
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Without contact
With contact
2nd opening release (see possible choices in combination table below)
Shunt opening release YO2
24 Vdc
60 Vdc
220 Vdc
30 Vdc
110 Vdc
48 Vac (50 Hz)
220 Vac (50 Hz)
120 Vac (60 Hz)
125 Vdc
48 Vdc
Undervoltage release YM
110 Vac (50 Hz)
240 Vac (60 Hz)
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
Mitop
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Without contact
With contact
Remote control
Electrical motor M
24…32 Vdc
110…127 Vdc/ac
48…60 Vdc/ac
220…250 Vdc/ac
Shunt closing release YF
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Male plug (1.2 m)
Female socket (2 m)
Low voltage wiring connection
Locking C.B. in open position
Ronis
Profalux
Low (560 mm)
High (775 mm)
French
Pressure switch (not available for all electrical characteristics)
English
Support frame
Leaflets language
Releases combinations table
Shunt opening releases YO1/YO2
Undervoltage release YM
Mitop
22
1
2
1
1
1
1
1
1
1
1
AMTED304010EN.indd
SF1 and SFset
circuit breakers
fixed version
Order form
by
Only one of the boxes (ticked X or filled
the needed value) have to be considered between each
horizontal line.
Green box X corresponds to none priced functions.
Basic fixed circuit breaker
SFset lateral/frontal fixed up to 24 kV
Quantity
Rated voltage Ur
(kV)
Impulse voltage Up
(kVbil)
Short-circuit current Isc
(kA)
Rated current Ir
(A)
Frequency
50 Hz
Operating mechanism position
60 Hz
A1
B1
C1
Colour for push buttons and indicators
Push buttons open/close:
Red/black
Indicator open/close:
Black/white
Operating mechanism charged/discharged:
White/yellow
Control unit and sensors
VIP 300P (not available for all
CSa 200/1
Is = 10 to 50 A
Is = 40 to 200 A
electrical characteristics)
CSb 1250/1
Is = 63 to 312 A
Is = 250 to 1250 A
VIP 300LL
CSa 200/1
Is = 10 to 50 A
Is = 40 to 200 A
CSb 1250/1
Is = 63 to 312 A
Is = 250 to 1250 A
Circuit breaker options
2nd opening release (see possible choices in combination table below)
Shunt opening release YO2
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
125 Vdc
48 Vdc
Undervoltage release YM
110 Vac (50 Hz)
240 Vac (60 Hz)
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Remote control
Electrical motor M
24…32 Vdc
110…127 Vdc/ac
48…60 Vdc/ac
220…250 Vdc/ac
Shunt closing release YF
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Male plug (1.2 m)
Female socket (2 m)
Low voltage wiring connection
Locking C.B. in open position
Ronis
Profalux
Low (560 mm)
High (775 mm)
French
Pressure switch (not available for all electrical characteristics)
English
Support frame
Test unit (VAP 6)
Leaflets language
Releases combinations table
Mitop
Shunt opening release YO2
Undervoltage release YM
AMTED304010EN.indd
1
1
1
1
1
23
24
AMTED304010EN.indd
SF2 circuit breakers
fixed version
AMTED304010EN.indd
Contents
Presentation 26
General characteristics 27
Description of functions
GMH stored energy operating mechanism
Wiring diagram
Opening circuit
Remote control
Indication and locking/interlocking
28
28
28
29
30
31
Dimensions
32
Order form
33
25
SF2 circuit breakers
fixed version
Presentation
PE56501
Description of the device
The basic fixed version of the SF circuit breaker comprises:
b 3 main independent poles, that are mechanically linked and each comprising
a “sealed pressure system” type insulating enclosure. The sealed enclosure is filled
with low pressure SF6 gas
b a GMH stored energy electrical operating mechanism.
This gives the device an opening and closing speed that is independent
of the operator, for both electrical and manual orders.
The circuit breaker can be remotely controlled and it is possible to carry out reclosing
cycles.
b a front panel housing the manual operating mechanism and status indicators
b upstream and downstream terminals for the power circuit connection
b a terminal block for connection of external auxiliary circuits.
The SF circuit breaker is only available with a frontal operating mechanism.
Each device can be optionally equipped with:
b a support frame fitted with rollers and floor securing brackets for a fixed installation
b locking of the circuit breaker in the open position by a keylock installed on the
control panel
b a pressure switch for the high performance versions
b a Harting 42-pin type LV connector.
Applications
SF circuit breakers are 3-pole MV circuit breakers for indoor installation. They are mainly used for switching and protection of networks from 24 to 40.5 kV in primary and secondary power distribution. The autocompression breaking technique used in these circuit breakers means that making or breaking all types of compacitive or inductive currents can be achieved without dangerous overvoltages for the switchgear connected to the network.
The SF circuit breaker is therefore well suited to operating capacitor banks.
26
AMTED304010EN.indd
General characteristics
SF2 circuit breakers
fixed version
Electrical characteristics according to IEC 62271-100
SF2
Rated voltage
Ur
kV 50/60 Hz
24
36
40.5
Insulation voltage
- power frequency withstand
Ud
kV 50 Hz 1min
50
70
85
- lightning impulse withstand
Up
kV peak
125
170
185
Rated current
Ir
A
Short circuit current
Isc
Short time withstand current
Ik/tk
kA/3 s
Ip
kA peak
Phase to phase
–
–
b
b
–
b
b
1250
–
–
b
b
–
b
b
–
2500
b
b
b
b
b
b
b
b
3150
–
–
–
b
–
–
b
–
12.5
25
31.5
40
25
31.5
40
31.5
kA
Short-circuit making current
Rated switching sequence
630
12.5
25
31.5
40
25
31.5
40
31.5
50 Hz
31.3
63
79
100
62.5
79
100
78.8
60 Hz
32.5
65
82
104
65
82
104
81.9
O-3 min-CO-3 min-CO
b
b
b
b
b
b
b
b
O-0.3 s-CO-3 min-CO
b
b
b
–
b
b
–
b
O-0.3 s-CO-15 s-CO
b
b
b
–
b
–
–
–
300
b
b
b
b
–
–
–
400
–
–
–
–
b
b
b
–
457
–
–
–
–
–
–
–
mm
Operating mechanism
Frontal
b
Operating times
Opening (ms)
< 50
Breaking (ms)
< 60
Closing
Service temperature
Mechanical endurance
T
–
(ms)
b
b
b
< 65
°C
–25 to +40
Class
M2
Number of switching operations
10,000
Electrical endurance
Class
E2
Capacitive current breaking capacity
Class
C2
b Available
– Not available.
Specific applications
Switching and protection of capacitor banks
SF range circuit breakers are particularly well suited to switching and protection
of capacitor banks; they are classed C2 according to standard IEC 62271-100.
Tests carried out according to the standard for breaking at 400 A with making
and breaking cycles in case of a capacitor bank with a making current of 20 kA.
Additional tests have been carried out: please consult us.
AMTED304010EN.indd
27
Description of functions
SF2 circuit breakers fixed version
GMH stored energy operating mechanism
Wiring diagram
028368
Operation of the electrical GMH stored energy mechanism
This gives the device an opening and closing speed that is independent of the operator whether the order is electrical or manual.
The electrical control mechanism carries out reclosing cycles and is automatically recharged by a geared motor each time after closing.
It consists of:
b the stored energy operating mechanism which stores in springs the energy
required to open and close the device
b a manual lever arming device for the springs
b an electrical arming device with a motor to automatically rearm the control
mechanism as soon as the circuit breaker is closed (optional)
b manual push-button controls on the front face of the circuit breaker (red and black)
b an electrical remote-closing device comprising a release and an anti-pumping relay.
b an electrical opening device comprising one or several releases of the following
type:
v shunt opening
v undervoltage
v Mitop, low energy release.
b an operation counter
b an open/closed position indicator with a mechanical indicator (black and white)
b an “armed” control mechanism status indicator with a mechanical indicator and an electrical contact (optional)
b a block of 14 auxiliary contacts, available according to the wiring layout used
b a pressure switch contact activated by a drop in gas pressure (optional: single
or double threshold pressure switch).
DE57420EN
Wiring diagram (principle)
Close CB
Open CB
M
M3
YF +
anti-pumping
Motor
Shunt closing
release
+ anti-pumping
system
YO1
“Control
mechanism
armed”
indicator contact
YO2
Shunt
opening
release
YM
Undervoltage
release
Mitop
Low energy
release
(Mitop)
Changeover
contact
Pressostat
NO
NC
contacts contacts
Remote control
28
AMTED304010EN.indd
Description of functions
SF2 circuit breakers
fixed version
Opening circuit
DE57421EN
Composition
(1)
The opening circuit can be produced using the following components:
b a shunt opening release (on energizing) (YO1)
b a second shunt opening release (on energizing) (YO2)
b undervoltage release (YM)
b low energy release (Mitop).
Note: see the table of the releases’ combinations page “Order form” .
Shunt opening release (YO1 and YO2)
Energizing this unit causes instant opening of the circuit breaker.
(1) or (2)
or (3)
Characteristics
Power supply
Threshold
See “Order form” page
V AC
V DC
V AC
V DC
Consumption
DE58092
Operating mechanism
0.85 to 1.1 Ur
0.7 to 1.1 Ur
160 VA
50 W
Undervoltage release (YM)
DE57390
Shunt opening release (1)
This release unit causes the systematic opening of the circuit breaker when its
supply voltage drops below a value less than 35% of the rated voltage, even if this
drop is slow and gradual. It can open the circuit breaker between 35% and 70% of
its rated voltage. If the release unit is not supplied power, manual or electrical closing
of the circuit breaker is impossible. Closing of the circuit breaker is compulsory when
the supply voltage of the release unit reaches 85% of its rated voltage.
Characteristics
Power supply
Threshold
Consumption
Latched
Undervoltage release (2)
DE58094
Triggering
See “Order form” page
Opening
Closing
V AC
V DC
V AC
V DC
0.35 to 0.7 Ur
0.85 Ur
400 VA
100 W
100 VA
10 W
Low energy release (Mitop)
This specific release unit comprises a low consumption unit.
Characteristics
Low energy release (3)
AMTED304010EN.indd
Power supply
Threshold
Direct current
0.04 A < I < 0.12 A
Any tripping due to the Mitop release unit is momentarily indicated by an SDE type
changeover contact (option).
29
SF2 circuit breakers fixed version
Description of functions
Remote control
DE57422
Function
Remote control enables the remote opening and closing of the circuit breaker.
Composition
The remote control mechanism comprises:
b an electrical motor with gearing
b a shunt closing release (YF) combined with an anti-pumping device
b an operation counter.
Electrical motor (M)
The electrical motor carries out the automatic rearming of the stored energy unit as
soon as the circuit breaker is closed. This allows the instant reclosing of the device
after opening. The arming lever is only used as a backup operating mechanism
in the case of the absence of the auxiliary power supply.
The M3 contact indicates the end of arming operations.
DE57392
Operating mechanism
Electrical motor (4)
Characteristics
Power supply
Threshold
Consumption
See “Order form” page
V AC/V DC
V AC
V DC
0.85 to 1.1 Ur
380 VA
380 W
Shunt closing release (YF)
DE58092
This release allows the remote closing of the circuit breaker when the operating
mechanism is armed.
Characteristics
Power supply
Threshold
Shunt closing release (5)
Consumption
See “Order form” page
V AC
V DC
V AC
V DC
0.85 to 1.1 Ur
0.85 to 1.1 Ur
160 VA
50 W
DE57393
The shunt closing release is combined with an anti-pumping relay that enables priority
to be given to opening in the case of a permanent closing order. This thus avoids
the device being caught in an uncontrolled opening-closing cycle.
Operation counter (6)
Operation counter
The operation counter is visible on the front panel.
It displays the number of switching cycles (CO) that the device has carried out.
30
AMTED304010EN.indd
SF2 circuit breakers
fixed version
Description of functions
Indication and locking/interlocking
DE57423
“Open/closed” auxiliary contacts
The number of contacts available depends on the options chosen on the operating mechanism.
In the basic configuration, the circuit breaker’s operating mechanism comprises a total of:
b 5 normally closed contacts (NC)
b 5 normally open contacts (NO)
b 1 changeover contact (CHG).
The usage procedure for auxiliary contacts is given in the following table:
Options
Shunt opening release (each one)
Undervoltage release
Low energy release (Mitop)
DE57394
Operating mechanism
NC contact
0
0
0
NO contact
1
0
0
In order to know the final number of available contacts, you must deduct the total
number of contacts included in the circuit breaker (5 NC + 5 NO + 1 CHG),
the number of contacts used given in the table above.
E.g.: a circuit breaker equipped with a remote control and a shunt trip unit has
the following available contacts:
5 NC + 4 NO + 1 CHG.
With a undervoltage release instead of the shunt trip, this circuit breaker would have
the following available contacts:
5 NC + 5 NO + 1 CHG.
Shunt opening release combination
DE57395
Auxiliary contacts (7)
1st release Shunt opening
release YO1
2nd release
Without
5NC + 4NO + 1CHG
Shunt opening release 5NC + 3NO + 1CHG
YO2
Undervoltage release 5NC + 4NO + 1CHG
YM
Mitop
5NC + 4NO + 1CHG
Undervoltage release
YM
Mitop
5NC + 5NO+ 1CHG
5NC + 4NO+ 1CHG
5NC + 5NO + 1CHG
5NC + 4NO + 1CHG
5NC + 5NO + 1CHG
5NC + 5NO + 1CHG
Keylocking kit (8)
Locking the circuit breaker in the “open” position
This key-operated device allows the circuit breaker to be locked in the “open” position. The circuit breaker is locked in the open position by blocking the opening push button in the “engaged” position.
Locking is achieved using a Profalux or Ronis captive key type keylock.
AMTED304010EN.indd
31
Dimensions
SF2 circuit breakers
fixed version
DE57424
Basic fixed unit
E
P/D
190
E
300
H
372
L/W
DE57425
Fixed unit with a support frame
E
P/D
190
E
300
H
630
L/W
644
Connection
2500, 3150 A (24-36 kV)
32,5
10
35
70
30
20
Ø 60
49,5
8 Ø13
90
26
30
35
70
63
26
2 Ø M12
78
100
90
18,5
2000, 2500 A (40.5 kV)
DE57419
DE57426
630, 1250 A (24-36 kV)
10
47
117
Dimensions and weights
Basic fixed unit
Rated current
(A)
Rated voltage
(kV)
630, 1250
24
36
40.5
24
36
40.5
2500, 3150
32
Dimensions (mm)
H
L
825
910
825
1110
825
1224
942
910
942
1110
942
1224
Fixed unit with support frame
P
750
750
750
777
777
777
E
300
400
457
300
400
457
Weight
(kg)
159
212
242
174
227
242
Dimensions (mm)
H
L
1030
910
1030
1110
1030
1224
1147
910
1147
1110
1147
1224
P
750
750
750
777
777
777
E
300
400
457
300
400
457
Weight
(kg)
179
239
272
194
254
272
AMTED304010EN.indd
SF2 circuit breakers
fixed version
Order form
by
Only one of the boxes (ticked X or filled
the needed value) have to be considered between each
horizontal line.
Green box X corresponds to none priced functions.
Basic fixed circuit breaker
SF2 fixed up to 40.5 kV
Quantity
Rated voltage Ur
(kV)
Impulse voltage Up
(kVbil)
Short-circuit current Isc
(kA)
Rated current Ir
(A)
Frequency
50 Hz
60 Hz
Colour for push buttons and indicators
Push buttons open/close:
Red/black
Indicator open/close:
Black/white
Operating mechanism charged/discharged:
White/yellow
Circuit breaker options
1st opening release (see possible choices in combination table below)
Shunt opening release YO1
24 Vdc
60 Vdc
220 Vdc
250 Vac (50 Hz)
32 Vdc
100-109 Vdc
110 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
100-127 Vdc
Undervoltage release YM
220 Vac (50 Hz)
240 Vac (60 Hz)
220 Vac (50 Hz)
24 Vdc
60 Vdc
220 Vdc
32 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
Mitop
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Without contact
With contact
2nd opening release (see possible choices in combination table below)
Shunt opening release YO2
24 Vdc
60 Vdc
220 Vdc
250 Vac (50 Hz)
32 Vdc
100-109 Vdc
110 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
100-127 Vdc
Undervoltage release YM
220 Vac (50 Hz)
240 Vac (60 Hz)
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
32 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
Mitop
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Without contact
With contact
Remote control
Electrical motor M
24…32 Vdc
110…127 Vdc/ac
48…60 Vdc/ac
220…250 Vdc/ac
Shunt closing release YF
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
32 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Male plug (1.2 m)
Female socket (2 m)
Ronis
Profalux
French
English
Low voltage wiring connection
Locking C.B. in open position
Pressure switch
Support frame
Leaflets language
Releases combinations table
Shunt opening releases YO1/YO2
Undervoltage release YM
Mitop
AMTED304010EN.indd
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2
1
1
1
1
1
1
33
34
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SF F400 circuit breakers
withdrawable version
AMTED304010EN.indd
Contents
Presentation 36
General characteristics 37
Description of functions
Racking-in
MV and LV connection
GMH stored energy operating mechanism
Wiring diagram
Opening circuit
Remote control
Indication and locking/interlocking
Safety functions
38
38
40
41
41
42
43
44
45
Dimensions
46
Order form
48
35
SF F400 circuit breakers
withdrawable version
Presentation
PE56502
Device description
The basic withdrawable version of the SF circuit breaker comprises: b the circuit breaker unit with its control mechanism:
v 3 main independent poles, that are mechanically linked and each comprising
a “sealed pressure system” type insulating enclosure. The sealed enclosure is filled
with low pressure SF6 gas
v a GMH stored energy electrical operating mechanism
This gives the device an closing and opening speed that is independent
of the operator, whether the control order is electrical or manual.
When remotely controlled, the circuit breaker allows reclosing cycles
to be performed
v a front face with status indicators
b racking components:
v the circuit breaker is equipped with racking arms and clusters. It is mounted
on a racking/unracking unit with a threaded shaft actuated by a crank which includes
all of the safety interlocking systems
v a Harting type male LV connector for external auxiliary circuits.
The SF circuit breaker is only available with front controls.
Each device can be fitted with the following options:
b position locking of the circuit breaker:
v open, by a keylock installed on the control panel
v racked out, by a keylock installed on the racking device
b the M1 and M2 basic cassettes comprising:
v a metal structure and one guide rail
v fixed connector fingers insulated by bushings
v metal insulating shutters for the MV part
v safety interlocking systems
v Harting type female LV connector
v indicator contacts for circuit breaker racked-in or racked-out positions
(4 NO + 4NC)
v a circuit breaker control mechanism spring discharge system
v a circuit breaker racking-in blocking mechanism
v an equipped door
v a foolproofing system for the circuit breaker rating.
Applications
SF circuit breakers are 3-pole MV circuit breakers for indoor installation. They are mainly used for switching and protection of networks from 24 to 40.5 kV in primary and secondary power distribution. The autocompression breaking technique used in these circuit breakers means that making or breaking all types of compacitive or inductive currents can be achieved without dangerous overvoltages for the switchgear connected to the network.
The SF circuit breaker is therefore well suited to operating capacitor banks. 36
AMTED304010EN.indd
General characteristics
SF F400 circuit breakers
withdrawable version
Electrical characteristics according to IEC 62271-100
SF F400
Rated voltage
Ur
kV 50/60 Hz
24
36
40,5
Insulation voltage
- power frequency withstand
Ud
kV 50 Hz 1min
50
70
85
- lightning impulse withstand
Up
kV peak
125
170
185
Rated current
Ir
A
–
b
Short circuit current
Isc
kA
1250
2500
Short time withstand current
Ik/tk
kA/3 s
Short-circuit making current
Ip
kA peak
Rated switching sequence
185
b
–
b
b
–
–
25 *
31.5
40
25
31.5
40
25
31.5
40
25
31.5
50 Hz
100
62.5
79
100
62.5
79
60 Hz
104
–
82
104
65
82
O-3 min-CO-3 min-CO
b
b
b
b
b
b
O-0.3 s-CO-3 min-CO
–
b
b
–
b
b
O-0.3 s-CO-15 s-CO
–
b
–
–
–
–
b
b
b
b
b
b
b
b
b
b
b
Operating mechanism
Frontal
b
Operating times
Opening (ms)
< 50
Breaking (ms)
< 60
Closing
Mechanical endurance
b
b **
mm
T
b
40
Phase to phase
Service temperature
b
85
300
(ms)
< 65
°C
–25 to +40
Class
M2
Number of switching operations
10,000
Electrical endurance
Class
E2
Capacitive current breaking capacity
Class
C2
b Available
– Not available
(*) Only 50 Hz possible
(**) 3000 A possible (please consult us).
Specific applications
Switching and protection of capacitor banks
SF range circuit breakers are particularly well suited to switching and protection
of capacitor banks; they are classed C2 according to standard IEC 62271-100.
Tests carried out according to the standard for breaking at 400 A with making
and breaking cycles in case of a capacitor bank with a making current of 20 kA.
Additional tests have been carried out: please consult us.
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37
SF F400 circuit breakers
withdrawable version
Description of functions
Racking-in
DE57396
Overall composition
The “racking-in/racking-out” function is achieved by:
b the SF F400 withdrawable circuit breaker with its LV connector (moving part)
b the M1 or M2 cassettes with their bushings (fixed part).
Switching the circuit breaker
The withdrawable circuit breaker can be moved between three stable positions:
b service position: the circuit breaker racked-in and locked in position,
the LV connector is connected
b test position: the circuit breaker is racked-out and locked in position,
the LV connector is connected
b disconnected position: the circuit breaker is racked-out and locked in position,
the LV connector is disconnected.
SF F400 circuit breaker safety functions
DE57430
A racking system with a threaded shaft makes it easier to rack-in and rack-out.
Test position contact
This is activated when the circuit breaker is in the “test” or “service” positions.
Earthing is achieved throughout the operation through the racking carriage wheels.
DE57429
Service position
DE57428
Test position
Interlocking
In conformity with standards IEC 62271-100 and 62271-200, the following interlocks
are available:
b prohibiting racking-in or racking-out if the circuit breaker is not in the open position
b prohibiting racking-in of the circuit breaker if the LV connector is not connected
b prohibiting disconnecting of the LV connector if the circuit breaker is not racked-out.
Interlocking with the cubicle door
The racking base is equipped with a device that allows interlocking between
racking-out of the circuit breaker and the cubicle door.
b only possible to rack-in the circuit breaker if the door is closed
b only possible to open the door if the circuit breaker is racked-out.
This device must be disabled if this interlocking function is not present.
M1 and M2 cassettes safety features
The M1 or M2 cassettes are fitted with the SF F400 circuit breaker and comprise
the following safety features for racking-in.
A metal structure with one guide rail
The rail guides the circuit breaker during racking-in/racking-out operations.
PE50198
disconnected position
Fixed connector fingers, insulated by bushings
The three ends of the circuit breaker, with their racking clusters, make the contact
with these three fingers.
Metal insulating shutters for the MV part
Protective shutters mounted on the structure stop fingers from accessing the racking
mechanism when the circuit breaker is extracted (protection index: IP2X).
Safety interlocking systems
When carrying out maintenance operations it is possible to:
b padlock the shutters in the locked position
b unlock the fixed contact access mechanism.
A control spring discharge system
The springs of the circuit breaker mechanism are automatically discharged when
it is extracted from the cassette. This function avoids any risk of nuisance closing
of the circuit breaker.
Volets de protection
Foolproofing system
This allows the circuit breaker rating to be matched to the cassette rating.
This system is mounted on the cassette side. The panel builder must ensure
that the right circuit breaker rating is being used.
Protective shutters
38
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SF F400 circuit breakers
withdrawable version
Description of functions
Racking-in (cont.)
PE50201
Possibilities for padlocking
For further operator safety it is possible to use a padlock:
b on the connector to lock the selector
b on the shutter protecting the mechanical opening pushbutton
b on the shutter opening mechanism in the circuit breaker compartment
b on the rotary voltage transformer switching mechanism.
PE50202
Locking/interlocking functions
A mechanism to prohibit racking-in of the moving part
A mechanism associated with a padlock or a keylock prohibits the racking-in
of the moving part. Locking is either achieved via:
b 1 to 3 padlocks, not supplied
b 1 keylock (optional).
PE50204
A blocking system for the circuit breaker opening order, when it is closed
This device can also be used as an additional way of prohibiting racking-in and out. A transparent shutter blocks access to the opening and closing pushbutton. The device allows independent locking of the opening or closing button. It is often associated with an electrical motor (M). Locking is achieved by a padlock (not supplied) mounted on the shutter protecting the mechanical opening pushbutton.
PE50205
A system to prohibit disconnection of the moving part
This keylocking system prohibits disconnection of the moving part. It may be used
for a circuit breaker or for a racking base.
Optional accessories
b a self-adhesive front plate shows circuit breaker racking-in and racking-out
operations. It is systematically delivered when the circuit breaker is ordered
with the cassette or can be ordered separately.
b 4 “racked-in/racked-out” position contacts.
b 1 position contact for the cassette locked in the “racked-in/racked-out” position.
b a keylocking system (Ronis or Profalux) for the circuit breaker in the “racked-in” or “racked-out” position.
AMTED304010EN.indd
39
Description of functions
SF F400 circuit breakers
withdrawable version
MV and LV connection
MV Connection
PE50195
PE50194
The customer connection is easily carried out from the back of M1 and M2 cassettes
using the upper and lower bushings.
MV connection with M1 cassette
MV connection with M2 cassette
LV connection
With the withdrawable circuit breaker, LV wiring uses an LV connector with:
b the moving part (male Harting socket) at the end of a flexible cable, entirely
connected to the control mechanism terminal via a bellow
b the fixed part (female Harting socket) compatible with the male part mounted
on the top inside part of the cassette.
PE50197
Interlocking function
In conformity with standard IEC 62271-200, an interlocking function prohibits:
b racking-in when the LV connector is not connected
b disconnection of the LV connector if the circuit breaker is in the racked-in position.
LV plug connection
40
AMTED304010EN.indd
Description of functions
SF F400 circuit breakers
withdrawable version
GMH stored energy operating mechanism
Wiring diagram
028368
Operation of the electrical GMH stored energy mechanism
This gives the device an opening and closing speed that is independent of the operator whether the order is electrical or manual.
The electrical control mechanism carries out reclosing cycles and is automatically recharged by a geared motor each time after closing.
It consists of:
b the stored energy operating mechanism which stores in springs the energy
required to open and close the device
b a manual lever arming device for the springs
b an electrical arming device with a motor to automatically rearm the control
mechanism as soon as the circuit breaker is closed (optional)
b manual push-button controls on the front face of the circuit breaker (red and black)
b an electrical remote-closing device comprising a release and an anti-pumping relay.
b an electrical opening device comprising one or several releases of the following
type:
v shunt opening
v undervoltage
v Mitop, low energy release.
b an operation counter
b an open/closed position indicator with a mechanical indicator (black and white)
b an “armed” control mechanism status indicator with a mechanical indicator and an electrical contact (optional)
b a block of 14 auxiliary contacts, available according to the wiring layout used
b a pressure switch contact activated by a drop in gas pressure (optional: single
or double threshold pressure switch).
DE57420EN
Wiring diagram (principle)
Close CB
Open CB
M
M3
YF +
anti-pumping
Motor
Shunt closing
release
+ anti-pumping
system
YO1
“Control
mechanism
armed”
indicator contact
YO2
Shunt
opening
release
YM
Undervoltage
release
Mitop
Low energy
release
(Mitop)
Changeover
contact
Pressostat
NO
NC
contacts contacts
Remote control
AMTED304010EN.indd
41
Description of functions
SF F400 circuit breakers
withdrawable version
Opening circuit
DE57421EN
Composition
(1)
The opening circuit can be produced using the following components:
b a shunt opening release (on energizing) (YO1)
b a second shunt opening release (on energizing) (YO2)
b undervoltage release (YM)
b low energy release (Mitop).
Note: see the table of the releases’ combinations page “Order form” .
Shunt opening release (YO1 and YO2)
Energizing this unit causes instant opening of the circuit breaker.
(1) or (2)
or (3)
Characteristics
Power supply
Threshold
See “Order form” page
V AC
V DC
V AC
V DC
Consumption
DE58092
Operating mechanism
0.85 to 1.1 Ur
0.7 to 1.1 Ur
160 VA
50 W
Undervoltage release (YM)
DE57390
Shunt opening release (1)
This release unit causes the systematic opening of the circuit breaker when its
supply voltage drops below a value less than 35% of the rated voltage, even if this
drop is slow and gradual. It can open the circuit breaker between 35% and 70% of
its rated voltage. If the release unit is not supplied power, manual or electrical closing
of the circuit breaker is impossible. Closing of the circuit breaker is compulsory when
the supply voltage of the release unit reaches 85% of its rated voltage.
Characteristics
Power supply
Threshold
Consumption
Latched
Undervoltage release (2)
DE58094
Triggering
See “Order form” page
Opening
Closing
V AC
V DC
V AC
V DC
0.35 to 0.7 Ur
0.85 Ur
400 VA
100 W
100 VA
10 W
Low energy release (Mitop)
This specific release unit comprises a low consumption unit.
Characteristics
Low energy release (3)
42
Power supply
Threshold
Direct current
0.04 A < I < 0.12 A
Any tripping due to the Mitop release unit is momentarily indicated by an SDE type
changeover contact (option).
AMTED304010EN.indd
SF F400 circuit breakers
withdrawable version
Description of functions
Remote control
DE57422
Function
Remote control enables the remote opening and closing of the circuit breaker.
Composition
The remote control mechanism comprises:
b an electrical motor with gearing
b a shunt closing release (YF) combined with an anti-pumping device
b an operation counter.
Electrical motor (M)
The electrical motor carries out the automatic rearming of the stored energy unit as
soon as the circuit breaker is closed. This allows the instant reclosing of the device
after opening. The arming lever is only used as a backup operating mechanism
in the case of the absence of the auxiliary power supply.
The M3 contact indicates the end of arming operations.
DE57392
Operating mechanism
Electrical motor (4)
Characteristics
Power supply
Threshold
Consumption
See “Order form” page
V AC/V DC
V AC
V DC
0.85 to 1.1 Ur
380 VA
380 W
Shunt closing release (YF)
DE58092
This release allows the remote closing of the circuit breaker when the operating
mechanism is armed.
Characteristics
Power supply
Threshold
Shunt closing release (5)
Consumption
See “Order form” page
V AC
V DC
V AC
V DC
0.85 to 1.1 Ur
0.85 to 1.1 Ur
160 VA
50 W
DE57393
The shunt closing release is combined with an anti-pumping relay that enables priority
to be given to opening in the case of a permanent closing order. This thus avoids
the device being caught in an uncontrolled opening-closing cycle.
Operation counter (6)
Operation counter
The operation counter is visible on the front panel.
It displays the number of switching cycles (CO) that the device has carried out.
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SF F400 circuit breakers
withdrawable version
Description of functions
Indication and locking/interlocking
DE57423
“Open/closed” auxiliary contacts
The number of contacts available depends on the options chosen on the operating mechanism.
In the basic configuration, the circuit breaker’s operating mechanism comprises a total of:
b 5 normally closed contacts (NC)
b 5 normally open contacts (NO)
b 1 changeover contact (CHG).
The usage procedure for auxiliary contacts is given in the following table:
Options
Shunt opening release (each one)
Undervoltage release
Low energy release (Mitop)
DE57394
Operating mechanism
NC contact
0
0
0
NO contact
1
0
0
In order to know the final number of available contacts, you must deduct the total number of contacts included in the circuit breaker (5 NC + 5 NO + 1 CHG), the number of contacts used given in the table above.
E.g.: a circuit breaker equipped with a remote control and a shunt trip unit has the following available contacts: 5 NC + 4 NO + 1 CHG. With a undervoltage release instead of the shunt trip, this circuit breaker would have the following available contacts: 5 NC + 5 NO + 1 CHG.
Shunt opening release combination
DE57395
Auxiliary contacts (7)
1st release Shunt opening
release YO1
2nd release
Without
5NC + 4NO + 1CHG
Shunt opening release 5NC + 3NO + 1CHG
YO2
Undervoltage release 5NC + 4NO + 1CHG
YM
Mitop
5NC + 4NO + 1CHG
Undervoltage release
YM
5NC + 5NO+ 1CHG
5NC + 4NO+ 1CHG
Mitop
5NC + 4NO + 1CHG
5NC + 5NO + 1CHG
5NC + 5NO + 1CHG
Keylocking kit (8)
Locking the circuit breaker in the “open” position
This key-operated device allows the circuit breaker to be locked in the “open” position. The circuit breaker is locked in the open position by blocking the opening push button in the “engaged” position.
Locking is achieved using a Profalux or Ronis captive key type keylock.
44
AMTED304010EN.indd
Description of functions
SF F400 circuit breakers
withdrawable version
Safety functions
This table describes the safety functions available on the SF circuit breaker
withdrawable version.
How to use the table
Each of the boxes describes the functional status of each circuit breaker position
and the associated parts:
Possible status
Possible status, impossible operation
Impossible status
Parts
Circuit breaker positions
Insertion
Racking-in
Racking-out
Extraction
Removed
Disconnected Test position
Service
Fool-proof
protection (1)
1 - Cassette
No opening shutters
Shutters padlocking possible
2 - LV plug
Disconnected
No door closing
No unplugging (4)
Connected
3 - Circuit breaker
Closed
Open
Auto-discharge
function (2)
No racking-in
No racking-out
No closing
Open position circuit breaker locking available (2)
4 - Switchboard door
Open
Closed
No racking-in
No door opening (3)
(1) This protection mechanism ensures that the performance levels of the circuit breaker correspond with those of the cassette..
(2) Option.
(3) Interlocking device to be fitted to the cubicle door.
(4) Because the door is closed.
AMTED304010EN.indd
45
Dimensions
SF F400 circuit breakers
withdrawable version
Basic withdrawable unit
Dimensions (mm)
A
B
C
1250 A
738
540
2030
D
36
40
750
850
1250 A
1278
2030
36
750
2500 A
1285
2030
40
850
DE57433
Weight (kg)
2500/3000 A
752
533
2030
DE57432
Dimensions and weights
DE57431
SF F400/M1
Dimensions (mm)
DE57433
Weight (kg)
A
C
D
DE57442
Dimensions and weights
DE57441
SF F400/M2
46
AMTED304010EN.indd
Dimensions (cont.)
SF F400 circuit breakers
withdrawable version
Connection
SF F400/M1
2500/3000 A
DE57438
DE57437
1250 A
SF F400/M2
2500 A
DE57444
DE57443
1250 A
AMTED304010EN.indd
47
SF F400 circuit breakers
withdrawable version
Order form
by
Only one of the boxes (ticked X or filled
the needed value) have to be considered between each
horizontal line.
Green box X corresponds to none priced functions.
Basic withdrawable circuit breaker
SF F400 withdrawable up to 40.5 kV
Quantity
Rated voltage Ur
(kV)
Impulse voltage Up
(kVbil)
Short-circuit current Isc
(kA)
Rated current Ir
(A)
Frequency
Pressure switch
50 Hz
60 Hz
1 threshold
2 thresholds
Colour for push buttons and indicators
Push buttons open/close:
Red/black
Indicator open/close:
Black/white
Operating mechanism charged/discharged:
White/yellow
Circuit breaker options
1st opening release (see possible choices in combination table below)
Shunt opening release YO1
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
2nd opening release (see possible choices in combination table below)
Shunt opening release YO2
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
125 Vdc
Undervoltage release YM
110 Vac (50 Hz)
240 Vac (60 Hz)
220 Vac (50 Hz)
24 Vdc
60 Vdc
220 Vdc
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
110 Vac (50 Hz)
48 Vdc
125 Vdc
Mitop (not available with sismic version)
240 Vac (60 Hz)
Without contact
With contact
Remote control
Electrical motor M
24…32 Vdc
110…127 Vdc/ac
48…60 Vdc/ac
220…250 Vdc/ac
Shunt closing release YF
24 Vdc
60 Vdc
220 Vdc
220 Vac (50 Hz)
30 Vdc
110 Vdc
48 Vac (50 Hz)
120 Vac (60 Hz)
48 Vdc
125 Vdc
110 Vac (50 Hz)
240 Vac (60 Hz)
Ronis
Profalux
French
English
Locking C.B. in open position
Leaflets language
M1/M2 cassettes
MC cassette type
M1
M2
Rated short-circuit current Isc
y 40 kA
Rated current Ir
2500/3000 A
1250 A
M1/M2 cassettes accessories
Racked-in/out position contact
4 NO, 4 NC
Extra handle
Releases combinations table
Shunt opening releases YO1/YO2
Undervoltage release YM
Mitop
48
Quantity
1
2
1
1
1
1
1
1
1
2
1
AMTED304010EN.indd
ART.95993 © Schneider Electric Industries SAS - All rights reserved
Schneider Electric Industries SAS
35, rue Joseph Monier
CS 30323
F - 92506 Rueil Malmaison Cedex
RCS Nanterre 954 503 439
Capital social 896 313 776 €
www.schneider-electric.com
AMTED304010EN
As standards, specifications and designs change from time to time, please ask for confirmation
of the information given in this publication.
This document has been printed
on ecological paper
Publishing: Schneider Electric Industries SAS
Design: Schneider Electric Industries SAS
Printing: Altavia Connexion - Made in France
09-2010
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