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.

2044

why use in & out Diesel line in dg set.

NHPC,

1 2814

what is parellel power factor correction?

HCL,

2 4501

What is the name of transformers oil filteration equipment?

Reliance,

2156

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

2 5631

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 7469

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 5215

how does an open delta transformer works

2 5163

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

4345

what happens when we apply dc to a transformer

Siemens,

7 11400

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

Enteg Technologies,

1 4618

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

1 3901

I have current, kva How can calculate kv?

3 6836

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

2 7037

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

3 13081

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Un-Answered Questions { Electrical Engineering }

what is effect of 5amp fuse on 2mva pry protection of transformer

1922

Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

2414

ELECTRICAL ENGINEER TEST IN FEWA ANY ONE HAVE KNOWLEDGE ABOUT THIS?????????

1096

whate is the meaning of balance/unbalance,in stabilizers type

2193

why steady state stability limit is greater than transient stability limit ? How it can be explained ?

2961

How to calculate main incomer rating of APFC Panel ? Let's say i want to find main incomer for 11kV, 1000kVAR Panel.

2028

how to test the electrical panel.ht lt mcc pcc.

3847

how to test and calculat the head and discharge in borewell compressor

2213

how can check the resistance of battery contact?

2271

how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

2431

what & how to check the lightning arrester

1975

What are all present producing cost of Per KWH of various Fuel?

2648

What is servo motor? what is its purpose?

2126

Differentiate between voltage and current feedback in amplifiers?

1175

A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is

2450

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