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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between earth and neutral?

1 2844

what is the difference between earthing and grounding?

Bhel, Wipro,

6 6653

what is d check in dg 1500kva

1087

What is the earth treantment procedure?

1076

what is the abbreviation of MIMIC regarding control and relay panels of power systems????

Enercon,

1 10314

there is a power transformer 66/11kV in delta-delta connection has 5 feeder coming out from the secondary side. One of the feeder in it normally loaded (loaded than other feeder)and this feeder usually trips with double OCR causing the bank transformer to trip. Now if the load of this feeder is put on other transformer then that no problems occurs on that transformer or the load. However normally all the test(IR, PI, short ckt, open ckt,grounding test and other ) has been conducted for this but evertything transformer..... I am not geting what is the actual problem...

2 3260

HOW TO WORK A VFD?SAY SIMPLE METHOD

GE,

1 2853

Why do we pefer VCB over OCB?What are the advantages of VCB over OCB?

CEB,

1524

What is meant by Low Resistance Cable and High Resistance Cable.

959

how to calculate energy of 3-phase motor?

Suzlon,

1065

25 kva 3 phase dg how many current will take per phase , plssssssss reply me

Bharti,

3 4375

Why does The speed of motor used in elevator remain constant irrespective of load??

1330

what is meant by CT`s saturation ? Can we use Metering CT`s with Protetection CT`s ?

1184

What are the advantages and disadvantages of oil filled transformers?

Mercantile Marine Department, Studio College,

2 14264

What are the main faults of DC generators?

Mercantile Marine Department,

1701


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Un-Answered Questions { Electrical Engineering }

Why use the vcb at high transmission system ? Why can’t use acb?

211


What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

1098


how do i work out the Amps of a incommer if i am running 1 37 KW motor and a 0,75 KW motor and some solinoids

993


for 750 kw LT load what will be the ht kva

755


High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?

1130






who can measure the size of power cable?

1061


what are the applications of TIG welding

694


state basic meaning of 'INDUSTIAL AUTOMATION'?

843


1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.

4652


How to calculate VA rating for CT or PT or Control Transformer?

1791


i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

712


What is the meaning of 40X8X2 busbar dimensions for carring load of 400 Amps

1070


What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?

1301


how to calculate the change over time for star delta starter for different KW motor?

3144


I PURCHASED A DEISEL GENARATOR SET OF AVR TYPE& RATING 125KVA BUT SOME TIMES THE OUTPUT VOLTAGE IS FLUCTUATING WHAT ARE THE PROBABLE REASONS GIVE ME

926