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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Corona occurs between two transmission wires when they (a) are closely-spaced (b) are widely-spaced (c) have high potential difference (d) carry d.c. power

Power Grid,

2 5697

which type of winding is used for high voltage & low current?

GEB,

1 2515

Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?

1503

Difference between rating factor of cable and derating factor of cable?

1643

what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth

Conan Minerals,

1385

single phase voltage 230 and Three phase voltage 450 why 690 voltage

XYZ,

1 2728

Why PS class CT is always preferred for Differential protection?

1601

Who are the manufactures those manufacturing 3Cx2.5sqmm FRLS cables. I heard about FRLS technology adopted only in wires useful for wirings

2083

For 160kw motor what size of cable and material is needed.?

1 2704

how to calculate IR value of 33KV cable ??

1904

How many battery required for an 3kva online ups with 3 hrs back up with usage of 3 fans,3tube lights

1 2586

list the advantages of RCCB over other circuit breakers?

1708

what will happen if dc is supplied in acb or mccb or other circuit breakers?

1 1970

sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason

UltraTech,

1479

3ph motor running with unequal kw and different pf what are the reasons

UltraTech,

1864


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

1867


What is the application of Dyn1 and Dyn11 vector group of transformer?

2881


Convert a star connected network into a delta connected network.

1118


Explain the functioning of diode?

1093


Cb closed condition if there is a tcs fail whether cb will trip or not

1833


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

1925


how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.

1976


in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

2850


How many types of instrument cables are there?

1098


what is d check in dg 1500kva

2121


why single CT used in DOL starter power circuit?

2524


how could we know the size of cable by physical view?

1627


what is the meaning of 0.5ohm Resistance

1861


What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

2093


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

1616