Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Does RCCB do the job of MCB? Lets take 16A RCCB. it trips when residual current exceeds 30mA. does it trip in an over current situation, i.e when current exceeds 16A ??

2 5966

In 3phase power= Root*3*v*i*cos@ What is the power in 2phase....??? and Derive it

Essar,

3 9109

What is the difference between KV,KVAR,KVA,KW?

L&T, PowerHouse, YUI,

6 56702

how to calculate voltage drop in long distance cable? for an e.g lamp of 12 volt ac ,300watt is 90 meter away from supply i.e (x'mer 230 v / 12v)and i m getting 8 volts at lamp terminal ....

1 3733

how you can select circuit breaker for 2000kva transformer?

TATA,

9 20706

What are the applications that use Solid State Drives in your home?

L&T,

1 5204

In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?

1713

what is the function of generator exciter

NTPC,

11 64881

One of the advantages of HRC fuse links is that they can be used to back up equipment with an inadequate rupture rating. briefly discuss what this means

1 5015

What is meant by the KA-rating of a circuit breaker? In this regard, discuss the stresses experienced by the circuit breakers

3 12576

WHAT IS THE DIFFERENCE BETWEEN KW AND KVA ?

10 31410

In Battery Charger - What is the meaning of End Cell Voltage and Float Voltage.

FLSmidth, Focus, PSEB,

9 39194

How to Calculate the maximum Demand required for a connected load for a manufacturing Plant

6 79209

How to design harmonic filter at the project stage without nowing the harmonics levels

1772

How to connect a Restricted earth fault relay for 2000KVA,11/0.433 KV Distribution Transformer and What is the neutral CT ratio should be selelcted for 2000 MVA Transformer for estabilishing the Restricted earth fault relay

1 3381


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Un-Answered Questions { Electrical Engineering }

What happen if 200 KVAR capacitor connected to power continuesly?

1644


define the non synchoronism of synchoronous machine in general g or m??

1436


what is differant beetween overload current and phase current?

1762


What is a differential amplifier?

641


Why mostly the HV side of transformer has Delta?

2747






is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

1459


distribution is maximum done by a)radial b)network c) parallel d)b & c

1490


explain supply side and demand side energy management with advantages & disadvantages

1671


What is the maximum number of swithes that can be connected in series up to down stream point in an LV Distribution system?

1519


Please define ampere?

666


what is the meaning of 0.5ohm Resistance

1395


What is the importance of earthing?

658


Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

1960


what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?

1337


State thevenintheorem?

589