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Electrical Engineering Interview Questions

i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

MTDC,

1134

why shoud in High tension cable( above11KV etc.,)a semiconducting material coating will be there on insulation?

2229

How many watts required for single phase power supply?

9347

If we increases the %impedance of Transformer then price of Transformer will increases or decreases.

2292

What is the power requirement of tamil nadu for one month?

1203

i have DEEE certificate in vinyaka misson unive rsity. is a INGNO if possible get the electrical C licences in Tamil nadu?

1233

what is lap & wave winding

2819

We know that primary transmission is done to reduce current so that i^2*r loss could be minimised but according to ohm's law v is directly proportional to i,which indirectly means higher potential difference means larger current?so how the current is minimised in high power transmission line??

3816

how to calculate busbar size? ex:11000kva main what is the busbar size ?and how to select the correct one

6356

why names such like dog ,rabbit, osprey,ant are used for conductors.

3197

What is the meager?

ABB,

18839

what is excitation/

1300

how capacitor control the power factor/

4562

what is the function of turbo charger in disel generators

3049

explain about the electrification in the Indian Railways? ie., how the power is taken and used to drive the train? explain with the block diagram??

2970

Un-Answered Questions { Electrical Engineering }

how i calculate the syncrones generator NGR resistance .if we have a 6mw generator line voltage of generator 11kv also line current 393.3 ampere.

1204

If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.

1030

What are electric motors?

246

what is the use of power transformer in GSS.

1502

What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.

1090

What is Servo Ventilated Motor?

1162

hello if any one have papers vof hpcl or sail, plz send me

939

How generating electric power export to grid from the generating station ?

968

hello friends..... any one have papers or any study materials?sail ,hpcl...?

1025

PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?

4270

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

2137

what do w do when the output of generator is fluctuating?

1304

What is the difference between Generator Differential Relay and Transformer Differential Relay?

1311

why impudance relay used for medium transmission power system? why not others?

448

what is the acceptable limit value for Desolve Gas Analysis/

1078