Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Uses of induction motor

NTPC,

6 25444

I want Primary side delta and Sec side Star connection transformer . but i have received Star - Star transformer ,shall i use the same transformer by giving the only 3 ph on Primary side without Neutral connection on the Starpoint.

5 7257

Why current flows in nutral? As per theory there should be no current in 3 ph explain.

Bhel,

11 12318




What is the difference between phase current & line current, how both can be measured in star and delta system

MIT, Doshion,

9 68869

Difference between ups

Emerson, Tata Power,

32 73634

What is the formula for finding fault level of generator?

11 26981

I am mechanical engineer,I need Training in Electrical & Electronics ( i.e. three days workshop training ) Where will I get the same Please suggest?

2 2482

can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

NTPC,

904




What will be the average KVA rating of Auto Transformer for 75kw 415V , 3phase induction motor

2 3681

If the capacitor bank is installed in switchyard say 132/22kv then on LT side say 22kv/0.433kv is it necessary to install capacitor bank for maintaining power factor. if pf is maintained on HT side then will that be maintained on LT side as well.if not then how&why??????/ please explain...........

MacLellan,

3 8239

what is relation between vector group of transformer and its load hormonics?

Sanmar,

1 1618

What are all present producing cost of Per KWH of various Fuel?

Sanmar,

1333

Why the generator rating in kva

Genpact, DLF, HNG, SIPM, CompuCom,

32 83618

Please nybody say, weather the result of Bharat Oman is declared or not? Probable date of declare???????

698

wat s the difference between diode and capacitor

TCS,

20 16009


Post New Electrical Engineering Questions






Un-Answered Questions { Electrical Engineering }

How can calculate the rating of a servo stabilizer for given a specific load

2222


A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

1212


how is the connection of a 3 phase ct trivector meter done on a pole mounted transformer

163


Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

842


1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?

807






the typical output of a solar cell is........

1053


What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

997


How good are you in resolving the commercial issues to Employer's advantage?

1066


What is BusBar integrity test and how it is conducted?

350


WRITEDOWN FEW RELY CODES

967


what is the carona effects meaning in HT line transmmission system

628


Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .

2110


I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

892


In convertor can we use rectifier thyristor in place of invertor thyristor with explain.

651


Explain Circuit Breaker Trip Characteristics in detail.

791