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 is the Load Capacity of Panther conductor (0.2) and dog conductor (0.1)

Greenko Group,

1 6799

explain 100 percent and 95 percent earth faults

1 5818

what will be project cost for 100 kv transformer connection under oyt scheme.

2935

why star 2 delta or delta to star preferred mostly then star to star and delta to delta ?

1 5994

What is electrical cable termination

Gulf,

2628

what is the difference between ground, earth and neutral?????????....

1 7491

describe the fully control circuit diagram of ac drives

1850

what is broken conductor indication

KPTCL,

3 5141

what is meant by CT burden = 10 VA?

1 4328

what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing

ABB, Genpect,

2672

what is the voltage level which is used in transformer short circuit test

1 5723

draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups

2397

draw the restricted earth fault protection circuit install on power transformer and identify its parameters and draw C/C curve of it

2715

- two pumps must work with them at the same time but if the first pump start the second pump must delayed for some time to start also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

2744

How can we choose the rating of submersible motors

2636

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Un-Answered Questions { Electrical Engineering }

How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.

1497

what is the maintaining Cf in UPS.

2357

How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?

2425

What is the capacitance values of 132,220,400 & 765 kV current transformer

1922

We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

1922

How to calculate the sag on transmission Lines.

3013

What will happen if i replace a inductive proximity switch with photo sensor in a machine?

1826

what is the grounding Calculation formula? spouse i want to provide grounding to 3phase 18kw motor or i want to provide ground to 3phase 10kva dry type transformere or you give me any exemple...... Thanks.

1870

How we calculat the NGR of 3phase Generator, Our generation voltage 11KV

3311

Difference between drift current and diffusion current?

1874

is it possible to turn on the single phase star delta on delay timer using 24 v dc ?

2050

we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

1679

Is neutral transformer can be called as control transformer?

1978

what is th basic difference between a d latch time line and a d flip flop time line???

1984

we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???

1989

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