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Electrical Engineering Interview Questions
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What is the difference between ELCB and RCCB. Please define the working of both.

 6 13819

to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????

 1485

CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

 5060

why we used to transmitt the power at higher voltage why not at lower voltage

 8 7370

why after termination of HT cable armoured earth connected one end, why not connect other end.pls tell me correct answer.

 3 9712

what is armature reaction?explain in simple words?and what is its infleunce on dc motor

 16 34517

what is the difference between torque induced and torque load?compare them with respect to dc motor?

 1575

what is the difference between ac and dc?which one is more efficient?and what r their advantages

 1 3297

what is neutral plane shift?

 1 8857

In Power transformer oil temperature or winding temperature will be high

3 14216

what is differnt between metering CTs an protection CTs

 10 11737

MY QUATION IS ABT THE MAIN POWER TRANSFORMER IN STEEL PLANT , I WISH TO KNOW THAT WHY TRANSFORMER PROTECTION NOT TRIP AS CABLES ON THE SECONDAY SIDE IS WATER COOLED. TRANFORMER DETAIL NORMAL KVA--150 KVA PRIMARY VOLTAGE --34.5 KV SEC.NO-LOAD VOLTAGE---1.290-908-690V ( WITH PRIMARY DELTA CONNECTED) CONNECTION--D/d (EXTERNAL CLOSED) CONSTANT RATEING FROM--1.290-908V CONSTANT CURRENT FROM--908-690 VECTOR GROUP--D III

 1 2915

pls someone send me sample question papers along with the key.thanks in advance

HPCL,

1875

why electric shock due to dc is dangerous than that of ac

 8 7977

What is different between Metering CTs and Protection CTs?

 4 13189

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Un-Answered Questions { Electrical Engineering }

how to calculate mf when meter and cTPT detail are given

1350

How harmonic block test are conducted on relays ( Siemens,Areva ect )power transformer using omicron kit?

1743

What is the approximate value of stacking factor?

685

State the factors, for the choice of electrical system for an aero turbine.

659

when 20hp 3 phase motor start no load condition in star or delta connection.find current and write formula.(tariq)

1517




What happens to voltage when current is zero?

759

how ct burden,magnetising current,ratio and knee point voltage are related & derived

1752

What is knee point voltage of transformer?

662

what is strip power factor?

1630

how to test power transformer.YNd11

1089

How to test lightning Arrester?

390

"TRANSFORMER MODELING AND ANALYSIS" MEANS WHAT AND WHICH TOPICS U READ IN THIS

1407

wow to calculate the transformer rating(KVA)

1668

where is core-type and shell-type construction suitable for transformers ?

1636

Explain bypass capacitor?

642

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