Answer / rajesh solanki delhi

to remove static charge

At light load transformer efficiency is less because A secondary output is low B transformer losses are high C fixed loss is high compared to output D copper loss is small

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Does the electricity supply authority send its customers power (kW) or voltape (V)? Asked by Ivan Muliro

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can u give me a brief idea about power line carrier communication ??

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why dc supply is given for excitation of ac alternator?how dc can produce flux?

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What are the special protection given for high capacity Motor, more then 10mw

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What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

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what is tower earthing and what for it is required

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why causes the burnt of AC Electrical Motor ?

9 Answers  

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For a Potential Transformer(PT), the primary neutral terminal must be grounded before energization. Why....? What will be heppend if we energize the PT without grounded the primary neutral point? Why..........?

2 Answers  

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Tell me in detail about c.t. And p.t. ?

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whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?

0 Answers   DAE,

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Hello friends., my question is related to testing of current transformer... A Ct having knee point voltage of 750 volts., and I have two step up transformer's of rating 230 v to 440 volts., can I obtain the value of 750 volts by using the two transformer's.... If yes then how could I connect the transformer's to obtain knee point voltage?? thank you in advance

1 Answers   ABB,

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