we have one ups its neutral is not earthed.its one distribution MCB has a eart

we have one ups its neutral is not earthed.its one
distribution MCB has a earth fault.but we can not put off
any MCB.so how to find out that in which circuit is earthed
without isolating the breaker.

Question Posted / guest

3 Answers
7143 Views
CFCL, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can n..

Answer / dudeblore

By using a megger meter you an find out the faulty circuit.
The faulty circuit will have a less resistance as it has
connected to earth somewhere.

Is This Answer Correct ?

4 Yes

2 No

we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can n..

Answer / guest

measure+ve to earth the earthed mcb will show low voltage
than other mcbs

Is This Answer Correct ?

2 Yes

1 No

we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can n..

Answer / sumitgarg

to aviode that probelem in furure you can use a ELCB or
RCCB that will help to find and earth the earth fault
current.
that shoud be of 1 Amp. rating.

Is This Answer Correct ?

0 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

0 Answers

Why derivative controller is not used in control systems?

0 Answers

What is the usega of brking resistor? and how it will useful to Drive...?

3 Answers

I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

0 Answers

How to connect the chemical earthing and complete process tell me plz

0 Answers

How can make a star delta with Rstar delta feeder ( ( 4contactor & one timer ) pls answer with digram (power &control digram)

1 Answers

how step up transformer step up the voltage and what is the reason behind it?

3 Answers

WHAT IS SEMICONDUCTOR? EXPLAIN DETAIL. FOR EXAMPLE TAKE A PENCIL.THE LEAD IS MADE UP OF GRAPHITE IT IS A CONDUCTOR.THE OUTER COVER IS MADE UP OF WOOD IT IS INSULATOR.PENCIL IS A SEMICODUCTOR MATERIAL.

5 Answers

cab we add capacitor bank with generator to improve power factor or not??????

1 Answers

what is speed of light?

8 Answers

Briefly define and explain the following different types of Pulse Amplitude Modulation (PAM) with some examples. i) 2-PAM ii) 4-PAM iii) 8-PAM iv) 16-PAM v) Quadrature Amplitude Modulation (QAM)

0 Answers UOG,

what is the use of the puls transformer in UPS & how it works???????????

0 Answers

For more Electrical Engineering Interview Questions Click Here