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Circuit-breaker panel L (CB-f NAR)

The circuit-breaker panels must be designed for connection of conventional sealing ends up to 630 A, equipped with:

1 set busbars, rated continuous current 630 A

1 vacuum circuit-breaker type CB-f NAR, 630 A
O 6 short-circuit breaking operations without maintenance
X 20 short-circuit breaking operations without maintenance
with maintenance-free operating mechanism as stored-energy spring mechanism,
rated operating sequence (O-3min-CO-3min-CO)
with X manual operating mechanism
O motor operating mechanism,
for motor operating mechanism with control voltage acc. to the technical specifications in the preliminary remark.
with mechanical ON / OFF buttons
with auxiliary switch, free contacts:
X 1NO+1NC+2ch.ov.
with mechanical indicator for "spring charged"
with shunt release for electrical remote tripping of the spring-operated/stored-energy mechanism (DC 24-220V or AC 110/230V),
including cutout switch (1NO) or c.t.-operated release for c.t.-operated protection device
O with counter for operating cycles
with interlock between circuit-breaker and three-position switch, which prevents operation of the three-position switch with closed circuit-breaker
with sealing option for the mechanical pushbuttons of the circuit-breaker Release combination:
X 1 shunt release (-Y1)
O 2 shunt releases (-Y1, -Y2)
O 1 c.t.-operated release (-Y6)

1 three-position disconnector, 630 A,
with the switch positions CLOSED-OPEN-EARTHED, installed in the gas-filled stainless-steel vessel for earthing the cable feeder,
with mechanical position indicator
with spring-operated mechanism:
with X manual operating mechanism
O motor operating mechanism,
for motor operating mechanism with control voltage acc. to the technical specifications in the preliminary remark.
with auxiliary switch contacts:
Disconnecting 1NO+1NC+2ch.ov. (CLOSED and OPEN)
Earthing 1NO+1NC+2ch.ov. (CLOSED and OPEN)
with locking device 0
with operating mechanism designed for separate operating levers
with closing lockout for the disconnector (prevents switching from OPEN to CLOSED when the cable compartment is open)

X 1 three-phase current transformer set on the bushings
with protection core
O 50A/1A; 0.75 VA / Cl. 5P / 20
O 100A/1A; 2 VA / Cl. 5P / 20
O 150A/1A; 1.5 VA / Cl. 5P / 20
O 200A/1A; 2 VA / Cl. 5P / 20
X 400A/1A; 4 VA / Cl. 5P / 20
O 500/1A; 5 VA / Cl. 5P / 20
O 600A/1A; 5 VA / Cl. 5P / 20

O 3 cable-type current transformers on the cables
X with 1 protection core
O with 1 measuring core
O with 1 protection core and 1 measuring core

X Protection core
O 40A/1A; 2.5 VA / Cl. 10P / 20
O 40A/5A; 2.5 VA / Cl. 10P / 20
O 50A/1A; 5 VA / Cl. 10P / 20
O 50A/5A; 5 VA / Cl. 10P / 20
O 60A/1A; 5 VA / Cl. 10P / 20
O 60A/5A; 5 VA / Cl. 10P / 20
O 100A/1A; 5 VA / Cl. 10P / 20
O 100A/5A; 5 VA / Cl. 10P / 20
X 150A/1A; 5 VA / Cl. 10P / 20
O 150A/5A; 5 VA / Cl. 10P / 20
O 400A/1A; 5 VA / Cl. 10P / 20
O 400A/5A; 5 VA / Cl. 10P / 20
O 600A/1A; 5 VA / Cl. 10P / 20
O 600A/5A; 5 VA / Cl. 10P / 20

O Measuring core
O 40A/1A; 2.5 VA / Cl. 1 / FS 10
O 40A/5A; 2.5 VA / Cl. 1 / FS 10
O 50A/1A; 2.5 VA / Cl. 1 / FS 10
O 50A/5A; 2.5 VA / Cl. 1 / FS 10
O 60A/1A; 5 VA / Cl. 1 / FS 10
O 60A/5A; 2.5 VA / Cl. 1 / FS 10
O 100A/1A; 5 VA / Cl. 1 / FS 10
O 100A/5A; 5 VA / Cl. 1 / FS 10
O 150A/1A; 5 VA / Cl. 1 / FS 10
O 150A/5A; 5 VA / Cl. 1 / FS 10
O 400A/1A; 5 VA / Cl. 1 / FS 10
O 400A/5A; 5 VA / Cl. 1 / FS 10
O 600A/1A; 5 VA / Cl. 1 / FS 10
O 600A/5A; 5 VA / Cl. 1 / FS 10

O Protection core + measuring core
O 50A/1A; 2.5 VA / Cl. 10P / 20
+ 50A/1A; 2.5 VA / Cl. 1 / FS10
O 60A/1A; 2.5 VA / Cl. 10P / 20
+ 60A/1A; 2.5 VA / Cl. 1 / FS10
O 60A/5A; 2.5 VA / Cl. 10P / 20
+ 60A/5A; 2.5 VA / Cl. 1 / FS10
O 100A/1A; 2.5 VA / Cl. 10P / 20
+ 100A/1A; 2.5 VA / Cl. 1 / FS10
O 100A/5A; 2.5 VA / Cl. 10P / 20
+ 100A/5A; 2.5 VA / Cl. 1 / FS10
O 100A/1A; 5 VA / Cl. 10P / 20
+ 100A/1A; 5 VA / Cl. 1 / FS10
O 100A/5A; 5 VA / Cl. 10P / 20
+ 100A/5A; 5 VA / Cl. 1 / FS10
O 150A/1A; 5 VA / Cl. 10P / 20
+ 150A/1A; 5 VA / Cl. 1 / FS10
O 150A/5A; 5 VA / Cl. 10P / 20
+ 150A/5A; 5 VA / Cl. 1 / FS10
O 400A/1A; 5 VA / Cl. 10P / 20
+ 400A/1A / 5 VA / Cl. 1 / FS10
O 400A/5A; 5 VA / Cl. 10P / 20
+ 400A/5A; 5 VA / Cl. 1 / FS10
O 600A/1A; 5 VA / Cl. 10P / 20
+ 600A/1A; 5 VA / Cl. 1 / FS10
O 600A/5A; 5 VA / Cl. 10P / 20
+ 600A/5A; 5 VA / Cl. 1 / FS10

O current transformers at the feeder with measuring core
O 100A/1A; 10VA / Cl. 0.5 / FS5
O 200A/1A; 10VA / Cl. 0.5 / FS5
O 400A/1A; 10VA / Cl. 0.5 / FS5
X 600A/1A; 10VA / Cl. 0.5 / FS5
O 1000A/1A; 10VA / Cl. 0.5 / FS5
O 1250A/1A; 10VA / Cl. 0.5 / FS5

O with zero-sequence current transformer for earth-fault detection
O 50A/1A; 1.25 VA / Cl. 1 / FS 10
X 60/1A; 1.25 VA / Cl. 1 / FS 10
O 100A/1A; 1.25 VA / Cl. 1 / FS 10

1 capacitive voltage detecting system acc. to description

O short-circuit/earth-fault indicator acc. to description

O 1 set single-pole insulated voltage transformers acc. to the selected operating voltage, at the cable feeder
Highest primary voltage for equipment Um:
1.2 x operating voltage Un
Secondary voltage:
O 100 V / root 3
X 110 V / root 3
O including earth-fault winding and damping resistor
Secondary voltage:
O 100 V
X 110 V
Rating/class:
O 20VA / Cl. 0.2 / 100/v3 V
O 20VA / Cl. 0.5 / 100/v3 V
O 20VA / Cl. 1 / 100/v3 V
X 60VA / Cl. 1 / 100/v3 V
O 100VA / Cl. 1 / 100/v3 V
O 20VA / Cl. 0.2/100/v3 V/100/3V
O 20VA / Cl. 0.5/100/v3 V/100/3V
O 20VA / Cl. 1/100/v3 V/100/3V
O 60VA / Cl. 1/100/v3 V/100/3V
O 100VA / Cl. 1/100/v3 V/100/3V

1 low-voltage compartment:
height
X 350 mm
O 550 mm

partitioned safe-to-touch off the high-voltage part of the switchgear panel,
with terminal strip for accommodation e.g. of devices for protection, control, measuring and metering,
with m.c.b.s for motor and protection circuit, and with installed protection device according to preliminary description:
O Feeder and overcurrent protection 7SJ82
O Feeder and overcurrent protection 7SJ85
O Motor protection 7SK82
O Motor protection 7SK85
O Generator protection 7UM85
O Transformer protection for two winding transformer 7UT82
O Transformer differential protection 7UT8
O Line differential protection 7SD82
O Distance protection 7SA82
O Voltage and frequency protection 7RW80
O Line differential protection 7SD80
X Overcurrent protection 7SJ80
O Motor protection 7SK80
O Overcurrent and Earth Fault protection 7SR11
O Overcurrent and Earth Fault protection 7SR12
O Overcurrent and Earth Fault protection 7SR100
O Motor and generator protection 7SR105
O Self powered overcurrent protection 7SR45

1 mimic diagram (printed, or equivalent)

1 feeder designation label

Feeder connection through cable terminal bar and with cable brackets.

Number of cables per phase:

X 1

O 2 (not possible when a feeder voltage transformer is used)

O 1 cable with surge arrester at the cable connection (not possible when a feeder voltage transformer is used)

Panel width:

O 500 mm

X 750 mm

Siemens

L (CB-f NAR)

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