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 5813

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

Engineers India,

2029

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

2 11666

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

1928

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 6786

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 7707

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 3127

what are thw types of turbines use in biogas plant?

1911

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

2 4711

in fuel level controller what is MOV please define.

2 4438

what are symmetrical and non symmetrical components in electrical installation.

2035

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

1 3857

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.

1820

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

1 4420

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.

1721

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Un-Answered Questions { Electrical Engineering }

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

2319

What is bode plot?

1191

Advantage of LT panel vs HT panel

2882

how many joint can done in HT line and what is life of the joint

2181

What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?

2959

does a DG set has low fault level as compared to that of a transformer.If yes then why.

1943

main difference between ac and dc?

1662

what are the types of electromagnetic forces developed in practical transformer?

2580

What are the limitations of Kirchoff's laws?

1542

how is the incoming cable size calculated for a given current rating of a panel??

1886

What is the approximate value of stacking factor?

1122

how power is generated,and transmitted to our home..pls explain briefly in simple words.

2207

What is expention fastener (Fan)

1998

What is meant by reset level of the relay?

1162

what is accuracy ? in any meters , coils accuracy . how can u defined that ?

2386

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