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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why insulators colour is BROWN?

1 5891

in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4

Engineers India,

2081

What is basic impulse insulation level? And how it is calculated for sub- station?

2 11840

3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

1970

For a 500 MVA 400/220/33KV transformer following data given HV power = 500 MVA IV power = 500 MVA LV power = 5 MVA If input power is 500 MVA then how output power is (500+5)MVA. Can anyone help

MEIL,

1 6876

How to calculate incomer of a capacitor bank/feeder from its KVAR, AND how to calculate the copper busbar for rated incomer,like for 400A we calculate the 40x10 of aluminum busbar.

1 7804

i seen a 132kv/11kv transformer,and thier is a sugar factorys 10MW EXPORT PLANT,MY QUESTION IS THAT WHEN THEY EXPORT ELECTRICITY THEY USE THE SAME TRANSFORMER AND THE CONNECT IT TO 132/11KV TRANSFORMERS SECONDARY SIDE CAN ANY ONE EXPLAIN IT.. THE TRANSFORMER IS OF KIRLOSKAR MAKE AND IT HAS TAP CHANGER.

1 3208

what are thw types of turbines use in biogas plant?

1966

What will happen to transformer if we gave 5HZ input instead of 50/60Hz??? explain with reason

2 4826

in fuel level controller what is MOV please define.

2 4544

what are symmetrical and non symmetrical components in electrical installation.

2091

Hi, what is 100 % stator earth fault protection and how it can be achieve by 3rd harmonics and low frequency injection principle ?

1 3970

As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1886

what is the difference between H.T Or HV lines...?

1 4540

As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.

1788

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Un-Answered Questions { Electrical Engineering }

Is it possible to measure the voltage of a battery from a single terminal?

1753

how to apply b license to c license in tneb

1836

HI....HOW CAN BE MESARED THE VALVE OF NEUTRAL GROUND RESISTOR WHIC IS LOCATED AT SWICHGEAR ON GENERATOR SIDE....

2109

what is the max. acceptable leakage current in 33kv bus bar

3031

condition Autotrip facia come on control panel of electrical transmission line?

1587

Define cuttoff frequency?

1082

how can tell us the AC indoor or outdoor which Tr and formulls

1777

Why the magneti fields are not passes from southpole to north pole

2143

how many stairs have you climbed while you were coming

2198

what about electrical pannel.? What is meant by plc pannel.?

2305

what heppend if we are connected u1-v1-w1 as a star point in the place of u2-v2-w2 in power genration

2244

How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.

4779

What is the de rating factor of cable? What is the importance of the de rating factor in cable select

2399

What is the size of a 60 watt and 80 watt tubelight?

2171

If Dg set load increase 25%, How much increase fuel Consumption (15 kva 2 cylinder DG set)

2279

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