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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

We are using 3core 11KV HT cable for same phase for generator outgoing, the cable leakage current is high and cable heated overly what is the remidy, if we use the 3core cable for 3phases the problem is solved are not?

1 4214

why the star delta motors burn out frequently

1 3869

In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

1927

why the generating / transmitting voltage is in the order of multiples of 11(ie 11kv,22kv,33kv......)

1 4626

How does a system control centre in a utility plant gets the grid frequency of the electrical network (50 Hz or 60 Hz)by the SCADA system?

1 2511

What is the difference between an ELCB and a RCD?

Schneider,

2 7032

What are the advantages and disadvantes of delta and star connections in transformers and alternators?

3 17348

why voltages are multiple of 11 or 1.1???describe with derivation plzzz.thanks

2 6035

1 ton AC takes how much current( starting & stable)

15 101488

what is power frequency withstand and impulse withstand of a circuit breaker?

Power Grid,

2 23048

why low pressure side of the turbine is connected to the alternator and not the high pressure side??

1 4406

what will happen if delta - star , 400V to 6.6KV step up transformer neutral is not grounded, Neutral is not used but transformer is provided with neutral.

2 6343

why rating of alternator in kva & induction motor in kw

Siemens,

9 19389

What is VVVF Drive ?

3 24958

What is the typical power circuit configuration of a VVVF Drive ?

1 4707


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

4228


what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

2063


wht is embedded systems? what is new inthis field?

1964


What id difference between power and energy?

1274


What is the dependency of stiffness on load angle??

1281


sir i want previous entrance exam papers for written test

2092


what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

3984


State any two nuclear power stations in India, with their generating capacity.

1827


best manufacturer for busbar for outdoor switchyard having double bus bar scheme, can any one share technical specification of busbar. 132kv voltage ?

1672


what is positive , negative & zero equivalent system resistance

1898


why i can not use thimble on capacitor duty contactor

1321


What is the main use of rotary phase converter ?

1101


we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

1626


please send me the L&T Emb. sys. placement papers and entire details of pattren

2290


On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?

2586