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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how squirrel cage & slip ring motor works? how they differ from each other

 1 4742

why the earth pin in a 3-pin socket is longer and thickest?

 5 7395

which is better 50 HZ supply or 60 HZ supply?

 6 9845

Difference between KW & kVA

 7 8895

why -48 volts dc used in telecommucation

 1967

What will happen if primary of transformer is fed with Square wave instead of sinsoidal wave ?Will it operate or Not?

Areva,

3 15895

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

 1678

Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

Piramal Healthcare,

1642

Why indicate only 440V to 3-phase supply.

 4 7747

whatis mean by voltage?

7 8128

Main Differance between Primary Distribution & Secondary Distribution Of Electricity....?

 1 23655

Why is a synchronous motor always star connected??

Bhushan Power Steel,

2098

what is the benift of HT metering & LT metering

 1 3935

what is the wattage of 'zero watt' bulb?

PSEB,

16 29660

Megger type of instrument is used to check??

8 8178

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Un-Answered Questions { Electrical Engineering }

y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..

1522

What happens to a motor if it is connected in Delta connection

556

What are the specifications for conducting earth leakage test as per IEC standard?

1495

what does a string of resistors in a series will do?

729

11000volt DG set carnt kaise banvay

1220




List the power rating of any 5 important electrical appliances used in houses.

1559

Why two phase welding machine is used instead of three phase welding machine.

1370

what are the different methods for the starting of a synchronous motor.

628

What determines the thickness of the lamination or stamping?

1161

what is arc flash and what are the hazards involved

1657

how we can calculate 2 phase welding transformer rating or total power?

1394

can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?

1250

What is the function of probe in cro?

633

What is meant by reset level of the relay?

672

in india per day how much power is generated including all power station

1446

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