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 role of impedance in transformer?based on secondary f.l.current(139 amps) and impedance(4.07) of 415/415v of 100 kva transformer. what is the primary current?

1 5926

which tap of the transormer you will use in critical condition(worst)?

1 3922

Determine the MVA rating of the power transformer given that 110/66 kV,1000 Amps. Folks how can i calculate the MVA rating with this Data??Plz Help........

1 15601

how does capacitor oppose sudden chane in voltage? how does inductor oppose sudden change in current?

AAA, Iqra University,

4 18461

what is the meaning of trippe time of circuit breaker

1 4163

show me the diagram of three phase wiring and also tell me hoe to take the readings of megger testing

2 6864

What is the different between earthing & Neutal

3 6479

What is differential relay ? where it can be used?

Scope International,

1 5465

CFL lamp is what type of load?

6 18443

how to calculate the chiller load from TR to KW?

3582

What is on line ups and off line ups?

2 5066

any body know about lighting arrestor. how to determine the height of lighting rod from top of bulding and how many area it cover.

1 3764

what is high pot test on 11kv switchgear and how to apply high voltage on panel what is spheare gap and how to determine its celeberation.

1 6512

Should the neutral earthing of 33/11KV D-S transformer, be connected to the earth grid?(Yes/ NO) why?

HAL, Vijai Electricals,

1 5460

why electron produce magnetic field when it is in motion?

Power Grid,

2153

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Un-Answered Questions { Electrical Engineering }

How to test REF relay testing for LV panel as per Kahramaa standard?

4950

What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

2110

how generator avr give to the input?

2004

The principle of switching circuits for different types of batteries in application of storage systems

1970

How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?

1777

what are the analog quality input for protection function?what are minimum reqiments?

1859

Explain Energy and Power signals?

1774

What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

2071

What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439

1043

List few applications of d.c series motor?

1135

WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES

2118

what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?

2175

how to find Harmonics and types as per the equipemnts

1296

What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

2422

What is the difference between DOL starter and star delta starter

1129

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