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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what mean ohm

Shoba Devlopers,

1 3896

how to calculate the Neutral transformer impedance?

Schneider,

2453

What is the difference between earthing,ground&nutral?

Bhel,

2 6686

What happen to alternator if prime mover fails?

4 28769

0.5,1,1.5,2.5,4.0.6.0,10,16 square mm electrical wires how much take maximum current in 50htz

SoftLogic,

2140

what take 100 w take current

SoftLogic,

1 3599

How will change the frequency in distribution side?

1792

In 3pin or 5pin socket why the earth pin is bigger

3 6990

How to check 11000/1.732 to 110/1.732 Potentila transformer (PT)?

TCL,

2208

Where voltage are high and current to be interrupted is low the breaker preferred is:

2289

what is the function of short circuit maintenance ct and droop ct.

L&T,

1 5706

it is difficult to interrupt a capacitive current because (a)it has a leading power factor (b)current magnitude is very small (c)the restriking voltage can be high (d)stored energy in the capacitor is high

DGVCL Dakshin Gujarat Vij Company, MGVCL, UGVCL Uttar Gujarat Vij Company Ltd,

2 14699

To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

2 8120

A system having the charactristic eqation (s+1)(s+2)(s-3)=0 is (a)stable (b)unstable (c)marginally stable (d)critically stale

1 3266

in transmission line, if the load is suddenly increased at the receiving end of the system the phase shift will (a)decrease (b)becomems zero (c)increase (d)not be affected

Getco,

4 9324

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Un-Answered Questions { Electrical Engineering }

Which is the largest hydropower station in the world?

1144

What is EHT tariff or Power factor Tariff ????

2343

what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.

3046

How to Calculate The Neutral Earth flat design calculation for the Synchronised generator (Gen 1-650Kva, Gen 2-725Kva

1652

What is electrical grounding?

1171

The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is

1137

state the working of discharge lamp?

2036

what is stper motor

2420

why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

1960

please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in

2258

write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

2150

Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

3002

explain the functions of main isolation switches

1680

What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?

2282

Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

2168

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