ELECTRICAL MACHINE

2 Answers   Bhel, HPC, NHPC,

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IN star -delta motors normally first operated in star mode {absulated given (r-y-b) phases after one miute change in delta mode in this case i am change phase sequience for example R -PHASE TO CHANGE Y-PHASE ;Y-PHASE TO CHANGE R-PHASE SO THIS TIME MOTOR WILL HAPPEN RUNNIG MODE EIGHTER(OR) STOP MODE(TRIP MODE)

6 Answers   MacLellan,

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why do we use 25kv supply for traction purpose

1 Answers  

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can I connect step down transformer(25KvA,240V Phase to phase)to output of online UPS(15KvA,440V PHASE TO PHASE) Load connect to TRANSFORMER is 13KvA,240V PHASE TO PHASE. please brief if it is wrong

1 Answers   DRJ ARDE,

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What is YNyn Transformer? and what are the other types in this?

3 Answers  

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What is the tolerence limit between neutral and earth in 230 V AC System?

7 Answers   NTPC,

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i want to know that how the height of Ct ,cvt ,LA calculated on the basis of creepage distance

0 Answers   Vedanta,

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what is different between auto transformer and vriac

4 Answers  

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Please give me the formula stating relation between AC & Dc.

2 Answers   JP Group,

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What is systematic error?

0 Answers  

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what is the difference between an alternator and a synchronous motor

0 Answers  

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WHY WE USE 4-20mA

5 Answers   Coca Cola,

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