what is the safety of ACB & VCB and how can this work and
how can the service the ACB & VCB parts name with picture




Answers were Sorted based on User's Feedback



what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / rajesh verma

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 ?    112 Yes 23 No

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

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 ?    66 Yes 7 No

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / ravi

Reverse power
Under voltage 
Over load Current
these are the safety of acb

Is This Answer Correct ?    61 Yes 12 No




what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / vikash kumar

Under voltage
Over voltage
Earth fault
Ground fault
Closing coil
Triping coil
Shunt coil

Is This Answer Correct ?    45 Yes 0 No

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / nadeem khan qadri

Under voltage
Over voltage
Earth fault
Closing coil
Triping coil
Shunt relay

Is This Answer Correct ?    27 Yes 3 No

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / lovely surendra singh

Reverse power
Under voltage
Over load Current
single phase preventor

Is This Answer Correct ?    25 Yes 4 No

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / kamal

under voltage
over load
reverce power

Is This Answer Correct ?    9 Yes 2 No

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / deenanath pandey

High current
Phase search
Earth fault

Is This Answer Correct ?    6 Yes 1 No

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / veeresh

Earth Leakage Relay
Short Circuit Relay
Under

Is This Answer Correct ?    6 Yes 3 No

what is the safety of ACB & VCB and how can this work and how can the service the ACB & VC..

Answer / kuldeep kumar

Over voltage
Sant relay
Ground fault
Over current
Under voltage
Short circuit




This is vcd safty devies

Is This Answer Correct ?    3 Yes 1 No

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