Answer / anil

star delta is used at the transmission side
star star is used for low voltage supplies
delta delta is used for higher voltages
delta star is used at the recieving end of the transmission

where was current transformer protection units used and why??

0 Answers  

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can we run all LT motors at 360 volts which are normally rated 415+/-10% voltage rating

2 Answers   Meinhardt,

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Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

0 Answers   DEWA,

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Give me the calculation steps to design an electromagnet to be work in 230V 50 Hz AC Supply. Also give force that is created by that electromagnet when it gets energized.

0 Answers   GE,

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define superposition theorem thevnin theorem ,norton theorom?

0 Answers  

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If a air condition consume 2.50 to 3.00 amp then how much it will consume in watts if it is running 10 hours out of 24 hours????

0 Answers  

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If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

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40 HP motor how many square mm size wire use for stator to motor & aluminium wire use ?

1 Answers   SSPL,

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Why consumers are charged based on Kwh basis why not on Kvah basis.

4 Answers   Unitech,

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How much the fault level of 11 k.v.,22 k.v., 33 k.v. (in Maharashtra- M.S.E.D.C.L) for calculation of short circuit current & selection of h.t.cable.

1 Answers  

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for a 132/33kv transformer secondary is star and is connected to NER. and from secondary a cable is running to 33kv swbd. since the cable is single core do i have to run neutral cable also to 33kv swbd.???

5 Answers   PowerTech,

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what are safety measures in /control in diesal engine/ explain them?

0 Answers  

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