what are the different functions of mccb, rccb / elccb ?

Question Posted / ncdhir.flsm

2 Answers
8693 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what are the different functions of mccb, rccb / elccb ?..

MCCB ( Molded Case Circuit Breaker) - This CB used to
isolate the fault circuit while fault current >63 Amps.
(<63 Amps, we use MCB [Miniature Circuit Breaker]).

RCCB (Residual Current Circuit Breaker) - This is an
electrical wiring device that disconnects a circuit
whenever it detects that the electric current is not
balanced between the energized conductor and the return
neutral conductor.

ELCCB (Earth Leakage Circuit Breaker) - It is a safety
device used in electrical installations with high earth
impedance to prevent shock.

Is This Answer Correct ?

7 Yes

1 No

what are the different functions of mccb, rccb / elccb ?..

Answer / parasu

All are circuit breakers
MCCB - Molded case circuit breaker.. its function is to
protect the equipmet from fault conditon with the guidline
of relays information.
RCCB/ELCB -Residual current circuit breaker / earth leakage
CB

Is This Answer Correct ?

7 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

working principles of cf lamp,incandescentlamp and f lamp?

0 Answers

what is an S.C.R. and how do they work?

4 Answers GE,

what is the main purpose of line PT and bus PT?

11 Answers L&T,

Can without battery on line UPS,off line UPS or Invertor works please brief.

5 Answers

What is harmonics in AC waves. How it is generated? How it will effect the system network? how can eliminate it?

2 Answers

Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.

0 Answers

Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?

0 Answers

sir please tell 1 ton equal to how many kilo watt?? in some converter software's that is 3.5 kw. is it right?

1 Answers

Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.

0 Answers

what is encoder & its use?

1 Answers ACC,

What is earth?

0 Answers CLG,

What is the diffrence between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?

1 Answers

For more Electrical Engineering Interview Questions Click Here