how the transmission voltage ranges are decided like 11kV,33kV,66kV,132kV,220kV,400kV,725kV.... why not choose the transmission line voltage as 23kV,164kV,440kV?? what's the reason??

3 Answers  

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sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence

0 Answers   Bhel, TNEB Tamil Nadu Electricity Board,

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IN Electric train which type of motor is used,for what reason they uses?

3 Answers   L&T,

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At site, we have 30Kw motor (3 phase, 400V,50Hz) and FLC 54A as per the nameplate. At the time of starting it draws 840A instead of 390A (7.2%). As per the data sheet also its 390A starting current. it thru a dol starter from the MCC. can anyone tell what is the problem in the motor

5 Answers   ME,

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what is auto transformer

3 Answers   IBM,

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What will happen if the interpoles in case of a generator have opposite polarities to that behind it in the direction of rotation ?

1 Answers  

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WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers

0 Answers  

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What happen if 200 KVAR capacitor connected to power continuesly?

0 Answers  

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there are a transformer and a motor. both are connected to 3phase, 415 Volt, 50Hz power supply. Both are working with induction principles. Then, why, motor is rotating and transformer is not rotating.

8 Answers  

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what is slip resistance? how much its value in 110 kw motor? why voltage is varied in vvvf drive ?

1 Answers   Reliance,

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Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set.

6 Answers   L&T,

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can we use trip light with bus coupler?

0 Answers  

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