Electrical Engineering Interview Questions

what is the use nuetral wire

4827

how external lighting design? please give examples?

691

what is the effect of leading power factor

5757

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

1517

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

621

WHAT IS THE USE OF ANTIPUMPING CONTACTOR IN HT BREAKERS

5918

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

5975

BRIEFELY EXPLAIN MEGGAR PRINCIPLE

9127

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

7221

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

5952

how to diffrentiate between ac & dc motors from a distance

18420

what is field flash

Bhel,

5367

what is nuetral grounding

2900

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

560

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?

4734

Un-Answered Questions { Electrical Engineering }

How to convert 2 phase to 3 phase electricpower in induction moter?

727

kindly send me 11KV MV motor differential protection procedure by primary injection method.

178

how we can calculate chiller required ampear?

793

What will be the effect of circulating current in HT xlpe cable when both the armour ends are grounded. Will the termination fils after some time in case of 33 kv supply.

862

Explain Circuit Breaker Trip Characteristics in detail.

765

what is effect of 5amp fuse on 2mva pry protection of transformer

624

IN SINGLE PH TRANSFORMER IF LEKAGE IMPEDANCE DROP IS NEGLECTED ,THE FLUX IN THE MAGNETIC CORE and the lekage flux linking a winding are a)proportional to the applied v to the winding i respectively.

787

This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

1203

i have a 1500kVA transformer what is the kWH meter i need to use?

482

I want to put this query to SENIOR & EXPERIENCED ELECTRICAL ENGINEERS. 1)I want to know about the control circuit diagrams for control panels. I found it difficult to understand. Is there ant booklet through which we can learn the circuit diagrams? 2)I want to learn about conduiting, laying cables, preparing cable schedules and various techniques which is the part of building infrastucture(construction field). I don't have any experience in this area. I have experience in control panels only. that's why i am not getting any opening in building infrastucture (construction field).Can I get the job in this field as Trainee Engineer? How to enter this field? I need job in PUNE

719

1028

do we use links in a dc circuit?if so what s its use in it?

781

how many safety really of DG sets.

877

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

964