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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Can someone explain how does an IDMT relay works.

AFM,

1 1802

wich timer i have prefred for pusher operation fwd & back?

AluChem,

2 2971

Why Drives are used to run AC motors?

3 3601

checklist of ELCB

EECE,

1 10190

what is neutral?

2 2894

what is deferens between HT< DG

2 3249

why C.T protection required for H.T.lines?

4 7143

What are the effects to a distribution transformer rated 10Kv with ratio 10Kv/0.433Kv, 3phase 50hz for example but fed with power supply of 11Kv?

2 2576

does meager test perform on lightning arrester ? if doesn't then why ?

1 2631

Which companies are into the project management of construction of power transmission line?

2 2033

what is difference between megger & Contact resistance meter & its Application?

2 7044

How many types of isolator is available for H.T.lines? which one is best for sub-station?

4 7637

why ct is connected at bushing of transformer ??????????

3 4482

WHAT IS THE WORKING PRINCIPLE OF A GENERATER.how is a GTG (Gas TURBANE Generater) working.plz explane

Assure Group,

1575

Why do we need interlocking in a HT metering or Ring main unit switchgear?

1072


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Un-Answered Questions { Electrical Engineering }

What is voltage ratio of a transformer?

155


mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....

993


Please tell me in DETAIL about the following 3 types of fuses or recommend me a good power system protection book or a website link ? 1.Dropout Fuse 2.Striker Fuse 3.Empulsive fuse (not sure if its impulsive or explosion fuse , sorry)

1212


what are the 4 rules to start the motor?

1212


Explain Creepage Distance of Insulator

1234






IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.

1327


what is die electric strnth of transformer ?

1135


What is acsr cable and where we use it?

174


Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

868


What difference between ref protection and differential protection ?

858


why output is out of phase in case of common emitter?

1160


define as synchronous generator

1215


how to calculate the lightning arrester conductor @ no of earth pits required

1122


What are the roles and responsibilities of electrical engineer in cement plant

1006


WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?

2838