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 4556

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

Essar,

3 7226

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

L&T, PowerHouse, YUI,

6 49441




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 2693

how you can select circuit breaker for 2000kva transformer?

TATA,

9 13208

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

L&T,

1 3749

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?

850

what is the function of generator exciter

NTPC,

11 54774




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 3786

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

3 10213

WHAT IS THE DIFFERENCE BETWEEN KW AND KVA ?

10 26269

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

Focus, PSEB, FLSmidth,

8 26894

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

6 66432

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

825

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 2124


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Un-Answered Questions { Electrical Engineering }

How can we checked Killo Watts of Motor & Alternator?

878


0.5,1,1.5,2.5,4.0.6.0,10,16 square mm electrical wires how much take maximum current in 50htz

925


if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

787


what are the 4 rules to start the motor?

892


what do u understand about FACTS? how they are useful?

699






ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

799


What is servo motor and what are different types of servo motor

1108


Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?

628


How we can defined theecopper cable size if we know the aluminium cable size?

487


Earth is a conductor or load?then ammeter connect to 3- phase supply,it shows the measurents or not?

898


How much weight an electrical engine can pull??

848


during installation time of transformer and alternator which points we have to observed?

672


how is find out kwh step by step

517


what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

664


Why the efficiency of generator is more than motor in swinburne's test

707