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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to calculate the current carrying capacity of electrical cables

179442

how to calculate the loss tangent of electrical cables

1414

what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.

1427

why are use star delta startor.

16530

why AC cannot to be stored and DC cannot be transmitted?

IBM,

34354

what happen to the voltage and current in all phases when an earth fault occur in a phase in three phase three wire system(delta connected)...

4075

if we know Fault level say 25 KA , How to decide busbar size for Distribution network of 1000 Amp Breaker ? Sample Calculation or Farmula Available or not ?

TCS,

17198

How to select Main CB Rating for 187 KW Load?

8662

What is the Surge suppresor? Why using in a UDB's and How it works?

1485

I have 725KVA DG set how to Calculate the Ratio of KWH? Whatb is the Formila

HCL,

24301

How to calculate the CFM to TR? What is the Formula

115217

what is efficient load of transformer in percentage

5195

why we use to transmit the power in three phases intead of single phase ?

7140

Explain the working principle of Synchronous Generator and Assynchronous generator?

1492

How many Cylinders are there in Diesel Generator?

5038

Un-Answered Questions { Electrical Engineering }

How to calculate VCB rating for 33KV ,25 MW Power line?

941

sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

821

what is the Pickup/drop off ratio in BCPU relays

3785

What are the causes for the failures of sandwich type (Al) busducts?

1230

What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.

1991

WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

1484

How many methods use the load flow solution?

564

how to get electrical supervisour certificate in gujarat

1360

design of IGBT firing circuit for 11KV

1918

Explain what cmos is and its benefits?

482

whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?

834

hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused

1390

i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester

1508

formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?

1454

How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???

1435