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 thef ormula to calculate the rating of a capacitor for a single phase motor

2 5268

What is the formula to calculate the no load current of a single & three phase induction motor

HCL, Nokia,

2283

Where do we adjust the setting of thermal over load relay & how cal calulate.

Hilton,

1 4434

What is the formula to calculate the rating of power cable for three phase current.

2141

How to calculate the cable size in sq. mm. when the load is given in KW?

1 6095

DG Earth Value?

Reckitt Benckiser, Vodafone,

2317

why we are useing capciter in EB meter?

2 5678

in telecom we are using neutral?

1 3815

1.What is the proper definition of power system stability? 2.some times a blue spark is visible in the secondary side of a distribution transformer at the contact position of bushings and fuse wire,why?

1 4592

how i prepare for the written test in mahagenco?

MahaDiscom, MahaGenco, Wipro,

2 6355

in 3phase 50kva dg what is the full load current for single phase laod

6 10305

What is the advisble power factor to be maintained in grid connecting power generation plnats without any effecting the generator.

1 3773

Is it possible to increasing the real power generation by reducing the reactive power in power generation plants

3 5889

in thermal power plants by opening the turbine governor valve increase the generator load. how

3 8137

losses in transmission lines ?

2156

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Un-Answered Questions { Electrical Engineering }

What is the difference between alternator and generator?

1310

what happen when increase or decrease size of lamp,light.glass.

1924

why do we lay up the core of a cable?

2020

how to calculate the earth fault current

2507

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

2241

What is the difference between type1 and type2 relay protection co-ordination for motor feeders

2234

some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

1769

substation+ plc system

2087

1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?

4649

What OPGW is better than Microwave or PLCC???

4131

State ohm’s law?

1113

What are the major reasons for balancing hydro-thermal mix?

1137

how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

1577

Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.

2218

what is the best method of grounding in 30 MW generator?

2033

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