Electrical Engineering Interview Questions
Questions Answers Views Company eMail

if sf6 gas low in gis what will happen

517

How to test lightning Arrester?

552

During FEED, you will have all the information with regards to cable. How will you calculate the MTO for MV and LV Cables? what are your considerations?

2157

Why need 3phase machine double earthing?

1469

what are the deffects for failure of PLC?

1766

How to calculate Number of Earthing Pits....???

1258

why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?

1232

how to calculate units consumption for a 12 hp motor /hr.

1149

what is the best transformer oil breakdown voltage?

850

what is circuit breaker in transfomer and where it used

843

Can we use LT(150 sq. mm) cable in place of HT (120 sq.mm.) cable.?

1 1912

DG cranking voltage?

4310

What must be the distance between the Earth pit which are grounded from two different sources. Example: Distance between the earth pit for LV Panel-1 & 2

1743

WHAT IS VCB SAFETY

923

Vaccum circuit breaker

1058


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Un-Answered Questions { Electrical Engineering }

What happens to voltage when current is zero?

894


what is the differebt between ac and dc fuse?

1989


how calculated Transformer losses.

1703


Who many reason of ignition fail ?

1607


How to calculate cable size by using load.?? Any formula...

1019






before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

1326


who invented active elements? plz give me the complte details of active elements...

1547


what is the advantages og idmt relay over magnetic relay??

3889


Why collecting electrode of ESP to be earthed

1762


In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?

1633


What are the different types of hydro schemes?

813


wat is the current produced in a 5000v megger? when the positive and negetive terminals are touched on our body get s shock?

1617


What are marginally stable systems?

797


raleigh method

1762


how do we calculate length of starting time and repeated starting of a direct online starter?

1665