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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is difference between 2 pole structure and 4 pole structure in transformer yard

Hospira,

2885

is there any chart showing the suitable cable size according to AMP and length ? for three phase motors

492

My meter CT is 200/5amps Then my electrical meter MF=???please suggest

KFC,

2 1169

why is the power generator connected as star earthed or star earthed through reactance and what its features ?

691

May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?

593

What is the two pole structure?

Foxconn,

869

why SCR use in power plant

Edison,

1 848

Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??

615

In general bus riser follows the bus section in SWGR. What are impacts if bus section follows bus riser?

606

What is power factor why we should maintain the power factor unless what will happen

718

Can we use Ccapacitive voltage transformer directly for metering purpose?

595

What is the maximum load of 240mmsequre single core cable can carry?

1 832

I want formula to calculate cable size as per load given in length & amp. I searched many sites but didn't right answer. Please reply me asap.

604

What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

615

How calculated single phase induction motor req. Capacitor?

608


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Un-Answered Questions { Electrical Engineering }

Hi.. I am a BE GRaduate in E&E. I have 8.5 Experience in Tendering & Estimation field. I have done SAP SD course few years back. But due to some reason i failed to get job in that field and continued my own field. Now I am thinking of changing into SAP seriously. How should i go ahead???

1001


hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

1163


what is load despatching

1164


why do we carry out winding resistance test?

1338


how can see the ac indoor or out door ac which Tr

1095






when we decide to use soft starter drive or vfd drive in mcc to operate apump?

1126


What is meant by turbo alternators?

165


What is gain margin?

161


if we apply 1000ADC instead of 100ADC or We apply 50ADC instead of 100ADC,What will be happened in the test result value.Pl explain

475


l&t switch FN 63 handle position can we change

1603


What is a parabolic signal?

133


What are the types of windings according to the construction?

168


how we arrange the hv side with delta connection in case 33/11kv of transformer.

1072


What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

1441


Mention what are the different colors on wires indicates?

216