Electrical Engineering Interview Questions
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do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....

Aibel,

1556

what is basic difference betmeen normal & flame proof motor??

1471

what is the gas pressure at normal & operating conditions of sf6 cb??

2 3985

What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?

1542

how to calculate the tarriff for an industry whose kva demand is 10 mva

1508

what is basic difference betmeen normal & flame proof motor??

Dynamics,

1620

what is meant by the phrase 'static load' in case of shorting in a generator excitation system?

1700

how MW increase when steam input increase in turbine.

1 3164

can any one help me out by posting something related to rvnl interview for site engineer electrical.? what is the procedure? what kinda question they ask us? how long the interview goes? and any tips? and any thing you want to share?

1814

can any one help me out by posting something related to rvnl interview for site engineer electrical.? what is the procedure? what kinda question they ask us? how long the interview goes? and any tips? and any thing you want to share?

RVNL,

1 11072

Which Current transformer will be bigger in size, 400/5 or 400/1 & why?

Apollo,

2 4792

What is Partial Discharge test .Please specify that this test can be test on 11/0.433 KV,630 KVA Transformer.

NBCC,

1 2431

Why cannot we insulate HT over head cable to avoid ionization of air around the HT Cable?..By this we can minimise corona loss also..

1 2736

What will happen when we connect 2 bulbs in series between 2 phases

Pepsi, PowerTech,

7 14832

I have 200 KVA Isolation Transformer for UPS input side. & ups was having 48% load, suddenly got short what will be the reason.

Mukand,

1 2309


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Un-Answered Questions { Electrical Engineering }

In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?

2745


i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

1616


what is the constructional difference between a power transformer and potentian transformer?

1252


What difference between ref protection and differential protection ?

1327


what are the application of over current relay?

4212






what is the IS foe lightning arrester?

1676


What is Bolted fault?

1676


What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

1529


What do you mean by the zone of protection?

614


what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.

1076


what is the responsibility of C license holder in industry?

8532


Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both

2309


where was current transformer protection units used and why??

1539


how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?

4806


how power trnafor from 1 point to another point in bus bar ya transmission line( voltage trnasfer from 1 point to another poin)

1485