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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

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1924

what is 30-phase of transformer

2301

For 33 kv HT line how much amps fuse to be fitted pls explain with formula

Suzlon,

1 5894

what type of motor is used in fan

6 8292

how to calculate short circuit breaking capacity KA for 2500kva 33kv transformer.

2273

WHAT IS MEANT BY SLIP , WHERE IT OCCUR

Suzlon,

3 6980

why buchholz relay is kept on inclined position and why it is cover??

GSECL,

1 4628

What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1914

How does a diesel generator works?

1 3668

Ash AAAC conductor is used for which KV lines

1 4113

why voltage is low at reciving end in summer??

JSW,

4 9939

in my observation NCT is used at Karnataka power transmission. why we are not used in andhra pradesh

1 2612

motor work in hat principle generator work in what principle transformer work in what principle pls explain with details or answered to ramadoss.sepc@gmail.com

Vestas,

1 3682

define as synchronous generator

Enercon,

2144

a wire in which bulb is connected there is two terminal when one terminal is connected to phase than why the value of current shock in nutral terminal is max. or large??

4 5690

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Un-Answered Questions { Electrical Engineering }

What products have you designed which have entered high volume production?

2063

why the projects getting loss?

1942

Please explain me abt PQ diagaram in the power sector.

2419

Pls explan the OLR setting in VCB at HT yard

2688

what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?

1969

Draw the DOL starter and star delta starter drawing?

2996

what happens when series resonance occurs?

1848

what is meant by directional earth fault and non directional earth fault? describe both.

1901

I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

1752

Difference between control junction box (cjb) and power junction box(pjb)?

4338

How to discuss the phase shift of transformer considering open delta?

1467

ROC converges if poles and zeros lie inside a. Origion b. Z=1

2260

what are the advantage and dis-advantage of 3 phase 4 wire energy meter?

2189

Battery is a voltage source? give one example of current source and why?

1588

What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)

3649

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