Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is buscoupler adopter panel????

5 4868

What is Exact meaning for Full load Efficiency and Maximum Efficiency of Transformer? Is there any Difference between? If yes ,please provide with formulae?

Techno Labs,

2 6038

What is the function of an exciter in a generator?

3 9923




What is an exciter and how does it work?

TATA, Lotte Chemical Titan,

7 76984

What is the difference between MCB & MCCB, Where it can be used,

Siemens, ACB Group, Badve, Bajaj Electricals, Hensel, SR,

22 123492

What is encoder, how it function

Coca Cola,

9 43475

what r the checklist while installing a 380 kva DG set

Pepsi,

2421

what r the checklist while installing 500 kva transformer

Pepsi,

840




I want formula to calculate cable size as per load given in kw & amp.I searched many sites but didn't right answer.Plz reply me asap.

MEIL, Lanco, BEL, Biocon, Tata Motors, Sabic, DLF, BRB Cable, Polycab, L&T, Armco, BGS, Doshion, Electrical, Gold Roof, Voltas, Oman Cables Industry SAOG, PK Services, SLV, UMIC, Vertex, Vega, UEM, Crystalline Chemical Industries, System Electrical,

40 348710

what happens when a power transformer neutral earthing broken???

MacLellan,

11 12505

what is power factor? whether it should be high or low? why?

11 7300

what are the various types of earthing? plz give brief detail of all. also post pictures if u have.

Aster Teleservices, Era Infra Engineering, Micron Electricals,

22 29874

what do u mean by bus bar?

6 7538

what is the relation b/w KW and KWH? plz explain with example.

FAG,

6 8611

what is the principle of operation of synchronous motor and generator? explain in detail.

Maruti Suzuki,

2 2690


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Un-Answered Questions { Electrical Engineering }

why we testing the core balance of the transformer before comissioning?

615


We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?

704


WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

532


The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.

562


How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?

713


True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

15


advantages of vvvf drives over non vvvf drives for EOT cranes

1663


we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?

278


what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.

627


Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??

125


How can maintain our H.T. motors used in cement plant. please send me procedure.

3597


What is the difference between AC and DC injection methods for rotor earth fault protection

665


if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.

577


which book to refer in electrical engineering for iocl exam & which book for general english.

731


how maney type tempereture measurement ?

840