Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/

1695

what is motor?

UIU,

2 4801

what happens if you swap F1 and F2 connection in the exiter of the generator?

1 3043

TNC switch is also available in 1NO+1NC. What does it mean ?

1 6256

What is a variable speed motor?

3 5592

what happens if we give 1-ph supply for 3-ph Bridge rectifier...??

Sanelec,

2 6047

Please mention any books for electrical design load calculation for industrial,commercial(to select cable,breaker,bus bar,stator,)

C&S,

1 2643

Transformer calculation

Aramco, LMW Lakshmi Machine Works Limited,

1 6849

why the voltage and current in a long transmission line are called travelling wave?

UIU,

1855

for 4 MVA , 33K.V/6.6K.V transformer. secondary side the connected load is 3000H.P. What is the rating of capacitor bank to be insttaled.

SCCL,

2252

which of the following elements is not present in stainless steel

LASA,

2128

What is voltage 

4 8076

what is protections used for 6.6kv ht motor

OEG,

2 3756

how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence

Gujarat Electricity Board,

2597

In TNC switch, is there any 1NO+1NC block ? and if we move over closing position, is ther any affect on trip position or vice versa?

1854


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Un-Answered Questions { Electrical Engineering }

tan delta equation test on alternators

1842


I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com

1960


whate is the meaning of balance/unbalance,in stabilizers type

1736


what is the responsibility of C license holder in industry?

8682


why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding

1501






Why i receive the GCU fault in my DG Sychronization panel . what all the factors considered for this fault .

1849


Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632

2343


I completed my BE EEE degree 2006 .... which license should i apply .... ?????

1264


In parallel operation time both NGR’s close or not close if both close what will happen

3350


what is the best method of grounding in 30 MW generator?

1601


why we have and use 3 phase not 2 or 4 or other in power system?

1765


We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

1551


Explain Circuit Breaker Trip Characteristics in detail.

1754


what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

1183


why connecting surge unit in contactor coil

1476