what is the safety of ACB & VCB and how can this work and
how can the service the ACB & VCB parts name with picture
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As you all knows that all circuit breakers can be called
as on off switch with some safety device ie ACB make and
break contact in air (one moving and one sliding) so it
called air circuit breaker for safety we use in ACB Under
voltage shunt trip closing unit. CBCT for tripping command
relay with over voltage earth fault etc for spring charge
we use motor charging mechanism. Same case with VCB
contacts makes in vacuum to minimize the arc during make
and break contact (one moving and one sliding) on high
voltage other function are same but according to the
voltage rating
| Is This Answer Correct ? | 121 Yes | 24 No |
Answer / manny sood
Over voltage
Under voltage
Earth fault
Reverse power
, these are the safety of ACB,
High current
Earth fault
No moisture
, these are the safety of VCB
| Is This Answer Correct ? | 91 Yes | 7 No |
Answer / ravi
Reverse power
Under voltage
Over load Current
these are the safety of acb
| Is This Answer Correct ? | 73 Yes | 13 No |
Answer / vikash kumar
Under voltage
Over voltage
Earth fault
Ground fault
Closing coil
Triping coil
Shunt coil
| Is This Answer Correct ? | 58 Yes | 2 No |
Answer / nadeem khan qadri
Under voltage
Over voltage
Earth fault
Closing coil
Triping coil
Shunt relay
| Is This Answer Correct ? | 36 Yes | 3 No |
Answer / lovely surendra singh
Reverse power
Under voltage
Over load Current
single phase preventor
| Is This Answer Correct ? | 27 Yes | 4 No |
Answer / kuldeep kumar
Over voltage
Sant relay
Ground fault
Over current
Under voltage
Short circuit
This is vcd safty devies
| Is This Answer Correct ? | 4 Yes | 1 No |
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DC transmission
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