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Electrical Engineering Interview Questions
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can induction motor becomes as a generator. if yes how it is possible. if there is a squirrel cage rotor.

 6 10417

I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

 1603

how system fault level is calculated?

HCL,

1 5614

how braking & making capacity of circuit breaker is calculated?

 1553

How the soft starter control the starting current in three phase squirrel cage AC Motor?

 1 2787

What makes the difference between 50Hz supply and 60Hz supply which one is economical? What is the use of using increased frequency?

ABB,

5 9145

could anyone suggest project title

Engineering,

1 2963

What voltage is used in Directional earth fault relay? and why?

L&T,

5 10126

Why does inductor is connected to dc supply? or what is the role of an inductor when connected to DC source?

TCS, TRR,

3 8931

why ac generator ratings in kva only why not kw ????????????? ?

 7 11524

tell me exact relation b/n voltage and current and which one is depend other

HAL,

7 7165

without any excitation we can strt any dc or ac moter?

Bhel,

6 10567

why transformer are rated in KVA not in watt?

DMRC, L&T, TCS,

7 15973

Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability.

Megatron Solutions, TCL,

1597

what is the distance maintained between the power and data cables with respect to the KVA .... plss give me the formula

 1 3494

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Un-Answered Questions { Electrical Engineering }

Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

1756

what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????

1422

There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2

1417

what is physical distance of isolator to VCB in 33/11kv sub stations

1679

what questions are asked in the interview for the post of an electrical maintenance engineer in FMCG companies?

2138




How Self works in DG set

1398

What are Contactors? How they works and what its highest rating?

1532

how does a submersible pump work..?

1395

How to know vacuum in vacuum cylinder of breaker in working condition

1483

Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.

1251

operation of diesel generator

1534

5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch

3351

Why syn. Generators are used for the production of electricity?

652

What is electrical cable termination

2211

what is allowed value of zero sequence impedancce of 6.6 kv nuetral earthing transformer ?what is the actual value

1643

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