what is the safety of ACB & VCB and how can this work and how can the serv

Categories >> Engineering >> Electrical Engineering
Suggest New Category

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

Question Posted / rajkumar_raj1979

21 Answers
93842 Views
ABB, ACB, Bharti, Claris Lifesciences, Honda, L&T, RotoPower, Sterling Wilson, Wipro, I also Faced
E-Mail Answers

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 ?

121 Yes

24 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 ?

91 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 ?

73 Yes

13 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 ?

58 Yes

2 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 ?

36 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 ?

27 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 ?

10 Yes

3 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 ?

4 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

RESISTONS R1 AND R2 in parallel = Total R.? 1-R=R1+R2 2-R=1/R1 + 1/R2 3-1/R + R1+R2 R=R1R2/R1+R2 select one

2 Answers BSNL, PGVCL Paschim Gujarat Vij Company Limited, TCS, Wartsila,

3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

0 Answers

what are all the components required to assemble solar panel other than pv cell?

0 Answers

what will happen if phases are not shorted with neutral in transformer impedance test? and if neutral is not connected with ground?

1 Answers

what are RCBO ?

4 Answers GE,

We wish to test 60 Hz systems from a 50 Hz supply. To acheive frequency conversion, we use a VFD. The VFD powers 40 kVA transformer, which has motor and non-motor loads on it. Will the transformer work?

2 Answers Suzlon,

Pleae send me last 5 years of Question book about RRB chennai.

0 Answers RRB,

STATE WORKING OF SF6 C.B.?

1 Answers

I completed my BE EEE degree 2006 .... which license should i apply .... ?????

0 Answers Real Estate,

in a 740 kw dc seperately excited motor field voltage is constant about 17.4 volts and armature voltage is500 volts dc. how it is possible to have two different voltages from single transformer of output voltage 500 volts? if any difficulty in question contact ajitsingh.kadian@gmail.com

1 Answers

HOW VFD USED IN ENERGY SAVING

8 Answers ITC Infotech,

can we done C.T.sc at output? if yes y,if no y?

3 Answers

For more Electrical Engineering Interview Questions Click Here