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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the function of LBB relay

9 59045

what is the reactive power what is the use of it in system

L&T,

1224

CAn any one can tell me what is the operation of ceiling fan and how it will start

2 3458

describe the phenomena of vacuum interruption in C.B

881

which one is rotating transformer-single phase induction motor or 3 phase squirrel cage motor?

1 3119

i wasted one year for the job after completed my btech what can i say about 1year time in interview

Infotech,

1198

A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

1330

explain how hunting can be reduced in an alternators?

3 8737

Why voltage regulation of an alternator is negative for a leading power factor?

3 17588

IT IS DESIRABLE THAT THE INCOMING MACHINE SHOULD BE A LITTLE FAST AT THE TIME OF SYNCHRONIZING.EXPLAIN?

1 2040

WHEN TWO ALTERNATORS ARE OPERATING IN PARALLEL, EXPLAIN WHY IT IS OBJECTIONABLE TO OPERATE ONE AT A LEADING POWER FACTOR AND ONE AT THE Lagging power factor?

1 2403

WHAT R THE SAFETIES IN A HIGH TENSION PANEL N LOW TENSION PANEL. ALSO WAT SAFETIES R THERE IN A 200 KVA TRANSFORMER?

1379

Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

1124

What is the BS(British Standard)code for 11kv motor

1 3592

why the voltage is in digit of 11/33/132/220/440 please send me on shukrerabbi_abkhalil@rediffmail.com with thanks

3 3517


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Un-Answered Questions { Electrical Engineering }

Please brief what is sinewave

1191


Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?

239


Transmission through a short line depends on

1270


Why an ac systems are preferred over dc systems?

238


What type of fittings and electrical accessories can be install in radiation area ?

959






Why does the adjacent zone of protection overlap?

242


What is “pu” in electrical engineering?

265


Difference between ac parallel circuit and ac series circuit?

1199


send me all basic electrical question and answers

2135


What is the difference between in Fourier series and Fourier Transform. and please tell me the difference between both of them and the why we use them in communication system?

1124


What will happen if the d.c. Machine is operated below rated speed?

244


How to know th details about an electrical Drawing ? Please mention the easy method.

1589


how to carried out tan delta test in 11 KV alternator ?

2070


How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

759


WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?

904