Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer

1682

if There is Short circuit in Power Transformer, what will happened to Buchholz Relay.?? How Buchholz Relay will respond.??

2 4144

how to find total current when kva is 30.4 given ? should we use root 3 (1.732) in the formula?

2 3988

why we use 11 kv 22 kv and so on ?

Air Force,

1 4921

what do you mean by partial discharge in cable

1 3231

how much current capacity of 300 sq. mm cable (4 core aluminium) and 150 sq. mm cable ( 4 core aluminium)

Bhel, RR Kabel,

3 29210

how much current capacity 250 amp. mccb please tell me about whats are the reasons to trip 2 or 3 times in a night. and what are the steps to short out this problem

Havells,

1 5189

What is the difference between power,voltage,current? and with example

3 5260

How to calculate the copper in HT motors if KW, RPM & Voltage is given

Control Dynamics, NTPC,

3167

Can you any explain about active,reactive and apparent power in power system with example.

1 2724

HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????

General Electric,

2133

In UPS, battery connections if parallel connection given, what will happen?

2 4693

Why earthing done?

CBRE,

1 5281

What is a fuse? How does it work? What are materials used?

1987

3) How earthing is done? How it measured? Write the method for earthing? How the earth resistance is kept low?

Innovative Energy,

1 4911

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Un-Answered Questions { Electrical Engineering }

WHAT IS ELECTRICAL MAINTAINTENCE ?

2034

which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant

1888

can we use NPT glands in LT panel

1794

i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle

1937

How cable from Kit-Kat to main switch, from starter to motor are designed?

2070

what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field

1969

how to calculate the magnetizing current of ct ( 800A/1A) for Relay 64

1430

What are n circles?

1049

How to calculate no of EARTH PIT? Describe the formula as per IS standard?

2124

Why efficiency in thermal power plant is low?

1075

what is meant by moulded case circuit breaker ?

2141

wish of these transformer uses oil?

1586

Dear Respected sir how to test ABB REX521 protection relay by relay tester.

2705

pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )

2713

What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

2179

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