Electrical Engineering Interview Questions
Questions Answers Views Company eMail

HOW TO CALCULATE THE CABLE SIZE FOR POWER CABLE, CONTROL CABLE AND INSTRUMENT CABLE

CA,

2 8536

what is the difference between KW and KVA?

15 56732

how do find power factor in practically and what it means?

3 4707




why transformer rating in kva ?

RRB, Eltel,

14 13124

Why the transformer rating is denoted in VA rating why not in KW

7 11236

what are the types used for alternator earthing,what will happen if more than two alternator is working in parallel with each having own system earthing.is there any possibility for circulating current in between two system.

BEL,

3 6566

What is the reactive power and how to control the reactive power in power plant

14 16948

Why we should use delta connection in primary and star connection in an distribution transformer, which converts 400v a.c. voltage to 33kv.

Sify, ABC, Kirloskar,

15 35301




What is the difference between CRNO and CRGO in an transformer and what is the advantages of these two.

CIL, ETA, Kirloskar, Anchor,

13 52981

sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in

HPCL,

796

i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

Bhel,

792

in india,we use 230V,50 Hz,whereas many other countries use 110V,60Hz.what r d advs and disadvantages of each of them?

11 18097

What is the difference between Neutral and Earth

Bhel,

6 6441

How do you select a cable size(cu and Al) for a particular load

Pepsi,

6 8151

How do you select a cable size(Cu&Al) for a particular load

Adhunik, TATA, BPCL Bharat Petroleum, Hiecon,

10 24712


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Un-Answered Questions { Electrical Engineering }

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

501


Can we test the alignment of End shield and stator of turbogenerator without rotor insertion? Also how to fix maintain the alignment at site installation?

858


advantage and disadvantage of team work?

407


from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?

848


Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?

968






we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

694


While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?

2153


Is it possible to convert Dependent sources to its equivelent current or voltage Sources ?????

673


what r PID controllers?why they r used?what is there purpose?plz Explain in detail

786


Advantage of LT panel vs HT panel

1067


I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1494


Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?

792


some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

566


Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?

759


how to calculate the breaking capacity of different breakers.

933