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 much pf maintan in dg set in 6o% load,when Dg runnig Neutaal Earthing removed what happen.

1947

why use in & out Diesel line in dg set.

NHPC,

1 2652

what is parellel power factor correction?

HCL,

2 4323

What is the name of transformers oil filteration equipment?

Reliance,

2044

I If i have 2kv ups in which 38Amp *8battries hou many hour's back up i get from 600Watts

2 5414

When we change the tap position of 10MVA transformer it suddenly tripped with Out of step indication and also with Static differential relay indication, Transformer Bucholz relay indn and Low oil level indication. Before 1 week the same problem occured by changing the tap position. but at that time only oltc bucholz relay activated. After testing the TxR Relay team & PET team cant find any solid reason. The values are ok also. So plz answer wat's the reason for this incident? anybody plz help.

3 7219

There is 3phase power cable from 1 point to the other point which is 100m away. Two point equipped with power meter and recorded 1st point is 205kW while the 2nd is 202kW and each phase average carry 400amps. To calculate the resistance of the 3phase power cable, is the formula using will be P=I2R?

3 4944

how does an open delta transformer works

2 4953

Difference between HRG and NGR. Are they both the same thing

4244

what happens when we apply dc to a transformer

Siemens,

7 10966

What is mean by Sensitive Earth fault & what are the effects

Enteg Technologies,

1 4453

Why pmg used in electrical generators for excitation.is there any other method without pmg ?

1 3726

I have current, kva How can calculate kv?

3 6529

how to check 3phase motor winding with help of multimeter?

2 6818

why motor run slow speed in star connection?explain how?

3 12785

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Un-Answered Questions { Electrical Engineering }

what is interfacing in computer studies?

1725

distribution transformer de-rating formula on over limit iron losses

2258

for compensate 315mh inductance ,how many capaciance required?

2011

TYPE'S OF BREKAR ,WHAT IS TRANSFORMAR & SAFTY. STARTER DOL & STAR DELTA STARTER.

2549

why the India electrical supply transmission loss is high when compare to us

1943

Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?

1739

how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation.

2355

Which motor connection is preferable star-delta or delta-star?

1036

What are the application of filter?

1019

What is the difference between solid grounding and impedance grounding?

2047

What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.

2316

how can motor both beasrings insulation resistance can be check?

1988

hi i have applied for lic of india south cenrtal zonal ,hyd. i didnt get hall ticket till now.let me know how can i get form internet

1968

Ratings of power transformer,Distribution transformer.

1566

star delta starter contorl circuit... drawing..

2041

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