Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is buscoupler adopter panel????

5 4171

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 4687

What is the function of an exciter in a generator?

3 8098

What is an exciter and how does it work?

TATA, Lotte Chemical Titan,

6 62135

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

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

22 117585

What is encoder, how it function

Coca Cola,

9 37556

what r the checklist while installing a 380 kva DG set

Pepsi,

2271

what r the checklist while installing 500 kva transformer

Pepsi,

642

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,

39 272277

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

MacLellan,

11 11058

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

11 6295

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 27583

what do u mean by bus bar?

6 6738

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

FAG,

6 7838

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

Maruti Suzuki,

2064


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Un-Answered Questions { Electrical Engineering }

Where is the best place to mount  distribution panel in a house.

580


I have a one P.F meter in my factory showing 2 phase leading and one phase lagging then what is my actual P.F.

201


Types of test in Switchgears, MCC, NGR and DB's how it should be procced. Can anyone give me the details here or email me to pasuvaraj.k@gmail.com

451


What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.

79


How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?

324


Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

352


I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1081


hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

323


How can find thermal state value in relay for calculate thermal overload.

323


how electricity is generated an supplied till consumer

437


WHat is the general checks required for Dry type transformers

421


A well system is when , no. of bus bar is less or more. Tell me the concept of it.

351


Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?

471


in cvt,there are two windings,1a,1n and 2a,2n.in my one project i use only one winding i.e.1a,1n. the other winding is not in use, so i connect it in open delta and want to close it by ibsertibg thermal resistor. the output of cvt is 132kv/115/sqrt3. plesae tell me exact value of resistor, so i may close it to avoid the resonance phenomenin. send me answer on this email adress please. aetcon-po@aetcon.com

744


Application wise, where we should use AC motors and where we should DC motors?

448