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Electrical Engineering Interview Questions
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What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

Eprosys Engineering Consultants,

1172

if 3400kw slipring motor rotor shorting done and motor started on mv drive ,what will be the rotor shoring current

 1244

If we have 11 kv RYB Phase single core cable near about. Then wht effect and losses

Kirloskar,

1353

Why the underground cables will Punchar? or what is the reason to burst the underground cables?

 1 2295

11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

 1200

Motor,transformers,capacitor tubelight etc....

 1219

160 kw motor running use 2R* 150 SQ mm cable

ID,

1166

Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

 1335

physical identification of HT & LT panel

Schneider,

1214

how could we calculate the no of outgoings from a 800 watt distribution board

United Engineering,

1263

how could we know the size of cable by physical view?

Havells, United Engineering,

1226

some basic standard questions on transformer.

United Engineering,

1333

i have 3, 75hp motors and 10, 15 hp motors....and to run this motors continously with a generator how much rating(kva) of generator will suiteble....?

 2 2619

I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.

Reliance,

2386

determine two methods to find loose connection in operational electrical system?

 1245

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Un-Answered Questions { Electrical Engineering }

HOW TO CALCULATE HV CABLE SIZING?

2572

In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.

1519

What are the uses of lead compensator?

604

What will happen if i used 11KV earth ht kit to 11 KV / 11 KV cable termination?

998

If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables

906




Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

627

how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it

1501

what is the difference between skin effect

1734

Why derating factor os applied on Cables?

1519

hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

1710

Define relative stability.

640

how diside ct mf exmp.200/5 ct

1653

is that a problem if i connect a single phase load to a secondry delta connected transformer but i get a neutral from other transformer i the system?

1404

WHAT IS THE DIFFERENCE BETWEEN GENERAL INVERTER AND SOLOR INVERTER TELL ME PLZ

1670

For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

1709

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