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 i run d.c. moter with solar panel without use of battery?

1 3335

Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?

3857

why all selected supply voltage are multiple of 11

Gamesa, Suzlon,

1 5249

If SFU is Switch Fuse Unit, What is the expansion for FSHF in Electrical Engineering?

2643

How to calculate Busbar Thickness for Different type of HT/LT panels

1 6497

How to select cable rating for HT/LT Panels

Alstom,

1 13182

What is notching in dc machine?

2054

what is the difference in between short time and continuous rating?

1 6845

There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

GMR,

2144

why restricted earth fault protection can not operate for phase faults??as there will be a current in secondary of ct,when a phase fault occurs!

GMR,

1 3125

Why not connect relay Y phase for over current and earth fault

HB,

1 4249

What is dynamo?How it works and what is the function of dynamo in a DG.

2627

why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

HCL,

2247

What is dynamo?How it works and what is the function of dynamo in a DG.

Amrapali,

3 13276

why we ht line cable size small rather than lt cable.

Aster Teleservices,

4 8650

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Un-Answered Questions { Electrical Engineering }

What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

1933

for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.

2538

what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY

2263

WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?

2175

why r we using shell transformer for low voltage

2063

What is a copper loss or i2r loss pc?

1195

How to select the cable and voltage drop in circuit?

1829

What are the operation carried out in thermal power station?

1122

Define peak overshoot.

1318

technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

2039

what is working process of star delta controlling circuit ?

1939

sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

4030

what is destructive and non-destructive testing of welding

1723

Write a note on materials used as a fuse element.

2171

HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT

2047

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