SF6 Circuit Breaker

  • Even in the event of complete gas leak, our SF6 CBs are capable of breaking 100% normal current & with stand system voltage
  • Advance warning of gas leak by continuous monitoring.
  • Explosion proof and FAIL - SAFE CB by means of membrane for each pole.
  • Inbuilt interlocks for prevention of withdrawing / Insertion of closed CB. Operation of CB is possible only in Test, Service or Isolated position.
  • Automatic Safety shutters to cover live parts when CB is withdrawn.
  • No degradation of main current carrying contacts, as there are current and arcing contacts.
  • Our SF6 CBs operate at low pressure. The internal pressure rise at the instant of current interruption also stays low. Due to this and the high degree of gas tightness adequate for entire life of the breaker is ensured.
 
 
11kV
22kV
33kV
Type
 
FP62D
FP63G
FP62D
FP63G
FP72D
FP73D
Rated Voltage
kV
12
12
24
24
36
36
Insulation level
kVrms / kVp
28 / 75
28 / 75
50 / 125
50 / 125
70 / 170
70 / 170
Rated Current
A
1250
2500
1250
2500
1600
1600
Braking Capacity
kA
26.2
40
26.2
26.2
16
26.2
Making Capacity
kAp
65.5
100
65.5
65.5
40
65.5
Short Time Current (1 or 3 Sec)
kA
26.2
40
26.2
26.2
16
26.2
Operating Sequence
 
O - 0.3 Sec - CO - 3 min - CO
Auxiliary Switch Contacts
 
8NO + 8NC
Spring Charging Motor Power
W
250
Spring Charging Motor Voltage
V
230V AC, 110V DC, 220V DC
Closing / Tripping Coil Power
W
80
Closing / Tripping Coil Voltage
V
24, 30, 48, 110, 220DC
Weight (approx)
kG
200
225
200
225
225
250
  • Proven Spring operated Mechanism.
  • Designed to closed and latch.
  • Manual / Motorised Option.
  • In built trip free mechnism.
  • In built anti pumping feature.
  • Mechanical ON/OFF indication.