Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

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

1 5374

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

5 9060

which is better 50 HZ supply or 60 HZ supply?

6 12090

Difference between KW & kVA

7 11115

why -48 volts dc used in telecommucation

2572

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

Areva,

3 17146

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

2140

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,

2090

Why indicate only 440V to 3-phase supply.

4 9108

whatis mean by voltage?

7 10588

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

1 24644

Why is a synchronous motor always star connected??

Bhushan Power Steel,

2558

what is the benift of HT metering & LT metering

1 4693

what is the wattage of 'zero watt' bulb?

PSEB,

16 33826

Megger type of instrument is used to check??

8 10134

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Un-Answered Questions { Electrical Engineering }

how point on wave controller works.

2561

Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

2167

how does high earth to neutral voltage affect electronic equipment?

1487

What is the difference between single point and double point bonding. please kindly detail about bonding of cables.

2399

What is the complete procedure of erection of electrical panel in industry

1827

What is precision of a measurement?

1069

ult of expression 'document.FrmQF.myem

2035

What is kirchoff ’s current law (kcl)?

1045

Why 9KV surge arrester having 7.65KV of MCOV?

1534

How to calculate the no of Ceiling fan (1200mm sweep) per unit area?

2013

I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

1883

In general bus riser follows the bus section in SWGR. What are impacts if bus section follows bus riser?

1497

The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?

1580

defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?

3658

How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

2652

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