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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

dielectric strength of vacuum is greater than SF6 but for 132Kv uses sf6 breaker & for 33kV uses vaccum breaker why such a contradiction?

MSETCL Maharashtra State Electricity Transmission Co Ltd,

2 4782

I have lowered a submersible pump having 100 LPM discharge & 130 Mts. Head, 15 HP rating on borewell. After lowering 108 Meters, It is taking 39 amps & blowing the fuse. Can someone put light what is the cause behind it ?

1 2391

I AM COMPLETED DIPLOMA IN E.E.E. AS WELL AS B.TECH IN ANDHARPRADESH.. HOW I THE Certificate of competency as Electrical Supervisor.

1 3191

What is the difference between acs 550 & acs 850

Madhucon,

5804

How to find ampere on ht side for selection of cable size ???

1801

1.Why sinle phase motor is not self starting 2.working principle of alternator 4.list out electrical formula

2 4155

What is the capacitance values of 132,220,400 & 765 kV current transformer

1922

Sir,I have finished my B.E in the Stream of EEE.How Can I get C license for Electrical???Please Tell me the way...My mail ID is praba1003105@gmail.com Cell:7402474123

1 2641

Please let me know when replacing electromechanical Relays for protection of generators with sr489 multilin Relay, then there is no need to use 86 master trip relay Too. I am wondering this multilin relay has no contact to Stop breaker reclosing as 86 does

Neucel,

1 2749

How do I calculate/select Droop CT ratio for various capacity of generators?

3654

What is power factor?

L&T,

3 7940

how is the incoming cable size calculated for a given current rating of a panel??

1934

what's the different between ELCB, ELR and ELS?

CP,

1 39812

how freewheeling diode improves the powerfactor

5423

What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?

BFL,

2248


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..

2036


Why is a plain induction motor unsuitable for wide speed control?

2275


what is different between relay and plc?

5695


main difference between ac and dc?

1709


How To increase Knowledge Of boliler regarding To Only Electrical Field..

1616


what is solkor relay and which condition it will act?

3359


is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

2130


WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .

2171


what is relay what is protection & contact multiplying relays where it is used function in brief

1183


At what speed an electric car can run with 2 HP motor of weighing 400 kg?

1826


How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

2176


-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.

2100


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.

2365


How to calculate the heat load for a electrical room

3085


Write the force balance equation of m ideal mass element.

1257