Electrical Engineering Interview Questions
Questions Answers Views Company eMail

in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

2434

what is servo motor and how it works?

Godrej,

2044

WHY DG are rated in KVA or MVA ???., but ALL power plants are rated in KW or MW.,,?

Coastal Energen,

3 11835

when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com

Godrej,

2143

Why is it preferred to use a wattmeter(s) to measure power in three phase systems rather than using a combination of other instruments e.g. voltmeters, ammeters etc?

2 5953

in power station what is the electrical circuit length of spacing between power transformer and lightning arrestors,for the voltage system of 230kv,110kv,33kv,22kv,11kv?

1 3537

HOW MANY POLES ARE THERE IN 3 SLOTS PER POLE PER PHASE MOTOR

2 9757

where is used dc volage transformer,and what is highest capacity of transformer

2 4717

can you use 400 volt 3 phase and neutral and earth equipment on 440 3 phase and earth supply safely and if so how?

Maersk,

2 7524

iam working as a electrical engineer. i want to know about any license or certificates regarding my field. for my carrier and ti improve the knoweledge.,,, how we get that..and what procedures......... pls help me

1 3837

how to testing the AC 3 phase motor? and what is the test procedure & kits required for testing?

3 7530

is it ok to switch lights from a mcb instead of switches

5 6765

what is the working principle of contactor and conditions of normal open and normal close on it?

EEE,

3 28949

if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

2260

1 no. 22 kV feeder is taken from state electricity board. 350 MVA is the S.C. MVA. now i am feeding this feeder to HT Panel having 2 outgoings which further supply to 2 Transformers. Can you please suggest me the type & rating of cables are 3 of these cables same? or they are different? please help...............

TCE,

2 6110


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?

2270


how to measure earth resistance of a substation

3013


What is the difference between type1 and type2 relay protection co-ordination for motor feeders

2012


what is integrated ac contact circuit

1870


CAN ANYBODY PLEASE TELL ME HOW TO DESIGN A SERIES REACTOR FOR LIMITING SHORT CIRCUIT FAULT CURRENT??

1686


The principle of switching circuits for different types of batteries in application of storage systems

1755


what is the function of bearing in dc mchine" and where it is placed

2337


how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

1915


if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.

1538


HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

3745


Explain Circuit Breaker Trip Characteristics in detail.

1914


What is clock position of Transformer?what are the clock positions are there?and what is different of them?

2901


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

1799


What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?

1668


State and define norton’s theorem?

1003