Answer Posted / ravi kumar

Safety of vcb :[ Vacuum circuit breaker]
1: Earth fault relay
2: Master trip relay
3: Supervision relay
4: Short circuit
5: Shunt relay
6: Closing coil

What is the ratio of Booster transformer?

2177

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Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?

2017

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How to calculate energy stored in a capacitance

1178

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Please explain me abt PQ diagaram in the power sector.

2435

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what are symmetrical and non symmetrical components in electrical installation.

2088

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What will happen if a dc source is given to a tubelight. Will it work or wont it work....

1991

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

812

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What happen Grid EARTH plat got cut.

2238

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What is stepper motor?

1302

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Differentiate between low pass, high pass and band pass filter?

1083

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for a 400kv t/m line with 10 ampere current will corona occur?

2199

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what is the voltage rating of chiller unit sensors

2783

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what is transient stability analysis means?

2157

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which model T or pie model is prefarable in power syatem

1891

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what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

2716

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