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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference between ELCB and RCCB. Please define the working of both.

6 15963

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??????

2090

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??

5637

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

8 9695

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

3 10990

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

16 39385

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

2305

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

1 4083

what is neutral plane shift?

1 10379

In Power transformer oil temperature or winding temperature will be high

3 15581

what is differnt between metering CTs an protection CTs

10 14547

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 3745

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

HPCL,

2388

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

8 10270

What is different between Metering CTs and Protection CTs?

4 15035


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Why field rheostat is kept in minimum position?

1244


why Lightening Arrester Probe sharp at Top of telecom tower.

1556


Difference between control junction box (cjb) and power junction box(pjb)?

4336


What is the difference between isolators and electrical circuit breakers?

1184


What are differences between Voltage, EMF & Potential difference ?

1993


why lightning arrestor are made in two stack of insulator but why not cvt

2078


I have a CT meter with ratio 60/5. The meter reading of previous month was 3290.49 and that of current month was 3797.26. How many chargeable units as per normal meter should be my reading.

1409


i have to install a HT panel, what components, I have to use in this and what will the diagram of that diagram,please tell me each and everything.

1812


I have motor of 3 H.P. How i found the rating of capacitor use in it in single phase motor..???

2632


What is highest size of HT motor like 11 kv or 33 kv,and how to make it 750 rpm.i think the size will be very big.any idea ? pl. reply..

1931


what are the breakdown voltage rating of mini- curcuit'transfarmer!

2172


If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?

2063


700KW 6.6KV slip ring induction motor to use VFD to control the speed

3208


when elecromagnatic waves are propogated in a wave guide?

2007


What is “pu” in electrical engineering?

1138