Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the use nuetral wire

8 4717

how external lighting design? please give examples?

663

what is the effect of leading power factor

Aurobindo, R L Steels and Energy,

3 5665




give me a clear defination of inductance,and how can u calculate inductance of a motor

1479

HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

591

WHAT IS THE USE OF ANTIPUMPING CONTACTOR IN HT BREAKERS

8 5788

EXPLAIN THE WORKING OF SERIES REACTOR IN HT CAPACITOR BANKS (FOR VOLTAGES & CURRENTS)

1 5861

BRIEFELY EXPLAIN MEGGAR PRINCIPLE

2 8952




what is impedence (Z) of transformer, what indicate in transformer , which perameter indicate in transformer

CTS, Suzlon,

5 7017

Motor and transformer working with same principle so why motor rotates while transformer not?

7 5852

how to diffrentiate between ac & dc motors from a distance

5 18031

what is field flash

Bhel,

4 5281

what is nuetral grounding

2 2846

If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive

517

What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

3 4672


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Un-Answered Questions { Electrical Engineering }

what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?

647


How much ph is maintained of water resistance starter for slipring induction motor ?

1080


why constant voltage transformer should be start without load? and if started then what will happen?

760


If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

685


what are the pecularity of shaver sockets ?

640






How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

720


how to remover corona effect and hysteresis losses from contactor

774


What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.

689


Explain the construction of the conservator, operation and purpose, and draw the diagram of the conservator.

1078


Why using synchronising methed in DG's sets?

918


WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?

567


what is saturation kit?which use above 15 kw motors panel side.

2138


When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

811


a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------

643


how to find the capacitance value of the motor while running??

601