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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

do we need NGR panel when the output of the genset is LV but after that it is step up to 22 kv. condition is 12 genset 400v are operating in parallel.

1 5584

132 KV TRFO BUSHING BURNT WHEN A 6.6KV HAS BEEN APPLIED TO IT .WHY .ANY REASON ?

MRF,

2 9085

Why is it that North America uses 60 hz frequency while Europe uses 50 hz?

4 9265

Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT

GE,

1 24476

Name of the relay of low lub oil presuure in DG sets

Lineage, Sterling,

2052

why most of the induction are delta connected?

6 9731

sometimes, eventhough the HV side of the transformer is opened there is a voltage in LV side .How is it possible?

4 7406

how can we calculate that how much capacitor is needed for a system to increase the pf?

5 9219

how will calculate the winding ohmic value in 3phase motors in h.p wise? ex.10 h.p motor winding value ph to ph ? 5 h.p motor any calculation please send me.

Hyundai,

1 6469

what different in delta & star connection in motor?explain

Bhushan Power Steel, Hyundai, KPCL, L&T,

5 14002

why the CT ratio secondary is always divided by 5 for eg( 75/5,80/5,50/5)

6 16572

what is the voltage present in the telephone?

Infosys,

10 13891

why do we connect droop ct{in gensets}in y_phase only

2 8324

HOW DG WORKS ?

3 17007

Does the dg syncronization sucessful in practical.

2 4624

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Un-Answered Questions { Electrical Engineering }

What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

6300

HOW TO CALCULATE THE VT SIZING?

3147

What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?

2183

by what factor the starting current is used when comparing star and delta connection for motor starting?

2071

what are the things that can cause a three phase motor to crawl?

3570

What happens to voltage when current through the inductor is constant?

1140

what is the major difference between LIBBP & HIBBP.. which one is most preferable..

2994

difference between Ac and Dc mcb ????

1629

Why do we use center tap transformer that used with portable tools

2263

what is conductor copnstant of ab cable

1903

how to design the heater in temperature control unit to heat 50KL of water?

1928

How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.

2408

hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

1886

can i able to get bhel previous exam question paper?

2101

What are the disadvantages of thermal power plant?

1091

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