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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Rough Balance Busbar Protection

1 4317

When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??

1 1392

How do we calculate transformer oil in liter from the rating of the transformer.

BARC,

1016

if flux and load static in dc motor and supply voltage increases 20% then what happened in speed

1291

How to calculate loses in transformer of 160 KVA ?

IDV,

1047

Shall we use Dyn1 transformer in place of Dyn11 for motor application as a distribution transformer

NSL Sugars,

1 1905

How to calculate fault level of 11 KV system

1263

From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?

Schneider,

1148

How can ou verify the size of conductor 50Sq.mm ACSR

Adani Power, Apar, EFS, Polycab, WHF,

1351

What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?

1756

In what situations relays are used in Circuit breaker? In Above what rating of Circuit breaker the relays are used? Why relays are not used for CB like MCB?

Elektrotek,

1087

How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?

Elektrotek,

1162

Now I inject 1kv DC supply r&y=??? R&Y=?? Y&B=?? B&R=???? RYB&N=??? RYBN&E=????? Minimum value====???????

Integra,

1 1924

What is a neutral

Adani Ports, Dr Reddys,

4 3363

What will happen if the rotor circuit of a slipring I.M. is kept open & electric supply is given to its stator winding.

2 5540


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is 11 N1 and 12 N2 in single phase Transformer ?

1341


How to test lightning Arrester?

144


What is the drawback of class b amplifier? How is this minimized?

505


what is the difference between unarmoured & Flexible cable? How to identified?

4495


How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

1448






Alternator rotor earth fault relay circuit

1382


I have finish diploma electronics and five years experience in electrical field in ht service how can i get c licensce or other electrical certificate

1003


Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,

1058


What is the working principle of CFL & T5 tube light & 40W tube light with electronic ballast?

3289


Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks

1104


how many Classification of fire extinguisher

1496


why capacitive load is not used in routine life????any reason is there ??????

966


HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA

1298


what are the possible reaons & remedies if resistance of NGR getting heat up

1227


how can tell us the AC indoor or outdoor which Tr and formulls

1146