How the speed of synchronous motor changes with the variation of load?

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why substation ratings are multiple of 11 means 11\33 kv substation

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what is the differnce between vector and phasor? are both same or there is difference between two term.?

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What Should be the rating of transformer used in 33KV substation?

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Why single core cable required bonding at double end.

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What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

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Which are the types of breakers used in High Tension (HT) side?

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Pl.brief me any electrical major fault you have rectified.

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Is there any decided or standard frequency to check the meager testing of transformer, DG set, LT Panel in the industries in a year. I means how many times we should be check the same.

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what is the difference b/c choke and ballast?

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in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?

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Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

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