Answer Posted / manish

in power system CT-current transformer,it is a device used
for reducing/stepping down ac current from higher valu to
lower valu for measurement/protection/control.PT-potential
transformer,it is a device used for reducing/stepping down
ac voltage from higher value to a lower value for
measurement/protection/control.

How to calculate cable size by using load.?? Any formula...

1402

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please write motor, transformer, Generator setting, fault level calculation of Tr.etc

2069

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how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.

1995

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What is I to C?

2162

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how external lighting design? please give examples?

1908

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why the carbon brushes are broken in srim while the motor runningtime

1726

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How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?

2906

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why Lightening Arrester Probe sharp at Top of telecom tower.

1573

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please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.

1690

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What is resistance reading of earth copper rod with grid and without grid?

1159

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What will happen if we introduce negative feedback to a control system that uses a positive feedback?

1102

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why we can stote dc? why we cant store ac?

2085

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Wind mill

1901

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how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.

2159

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what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?

2513

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