why we have and use 3 phase not 2 or 4 or other in power system?

0 Answers  

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What is a formula to decide the size of the cable of the star delta motor ( From Contactor to the motor 2 runs )

4 Answers  

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checking procedure of capacitor based motors.used in fans etc?

0 Answers   Badve,

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sometimes, eventhough the HV side of the transformer is opened there is a voltage in LV side .How is it possible?

4 Answers  

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how to calculate the megger values for motor, cables and transformers?

2 Answers   ITC Infotech,

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What is the PIU.

1 Answers   Jindal,

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What is differance betwwen Conventional MCC & Inteligent MCC?

2 Answers   Quantum, Siemens,

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what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

0 Answers   HAL,

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what is frequency transformer?

2 Answers  

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What happens if i apply 500V to 440V rotary Switch ?

0 Answers  

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ups and invertor battery selection chart and full formula

2 Answers   APC,

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1)we r having one problem .one dry type transformer(6.6KV/433V)is taking high magnetizing current on delta connected HV side of "U" phase when compared to other two phases.could any body tell the reason why it is happening? 2)why CT secondary side protection core has got higher winding resistance when compared to that of metering core of same CT?

2 Answers  

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