Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the normal earth resistance?

11 21512

WHAT IS THE WINDING PROCEDURE OF ELECTRICAL MOTOR

GE,

2764

what is SWA type of cable?????

4 5446




I have 11KV/415V power distribution transformer. I have found unbalance current in LT (415V) side. Also observed that unbalance voltage (3V) at LV side due to HV side unbalance voltage. What should I check for this? Also, the same LV side load can run in balance on captive power.

1 3399

What is the function of automatic Transfer Switch(ATS) in details

3 20206

Why Delta Star Transformers are used for Lighting Loads.

6 21107

What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

716

Define the overload capacity of the motor?

811




Why is starter necessary for a three-phase induction motor?

Supertech, ITI, Essar, BMM, Watt, Hero MotoCorp, Maruti Suzuki,

37 140790

What is the need of motor starter?

6 7728

What are the advantages of star-delta starter with induction motor?

Merchant Navy, Naval Academy, Samundra Institute of Maritime Studies, YMCA,

7 38021

What are the advantages of DOL starter?

7 29190

Why is the starting current high in a DC motor?

2 7969

How will you determine the rating of a motor for continuous duty variable load motor applications?

1 2452

Enlist four components of electrive drives.

685


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Un-Answered Questions { Electrical Engineering }

what is the difference between Power and Distribution transformers ?

824


why you don not show protection and type of isolation in key single line diagram?

718


Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

701


i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

459


does not the circulating current in a transformer affect the flux distribution in the transformer core

672






why we can stote dc? why we cant store ac?

849


What the formula for calculating no.of earthings & size of earth strip for 100mX90m shop.

990


As we know induction squirrel cage motor torque Directly praprortinal to applied voltage in star connection & delta also. If I connect 55KW Motor to DOL starter in load condition does motor withstand the load & what will be the current withdrawn ? motor will not fail ?

687


How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?

2228


what is zinc diffusion?

711


WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

1107


i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice

798


Whats the difference btwn a latch, port,data bus buffer? Do they all not hold data in d flip flops??

1217


I want the details about BHEL company examination.Can anyone able to help me please.

808


sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva.

1741