Answer Posted / shanthipriya.r(design engg)

reduce hormonics and improve efficiency, so only we used
reactor in over head line.

how can we understand that where we have to use ac or dc coil for solenoid valve and why?what is the different between coil of ac and dc explain please.

1960

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An automatic water heater is an example of which type of control system?

1152

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What is the actual calculation for transformer short circuit test?.

2448

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What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?

1469

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Describe the control mechanism of missile launcher???

1951

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In 11/0.414 KV Parralel supply network with Bus tie closed what will be the fault level is it doubled or halved??

2061

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how i can calculate the size for fire cable

1995

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the problem faced on star or delta winding connection??

1905

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what is the setting of locked rotor in HT motor ? (answer expecting in percentage)

2263

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who invented active elements? plz give me the complte details of active elements...

1828

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internally connection of photvoltic module

1904

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What are the major reasons for balancing hydro-thermal mix?

1111

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Which motor will you choose which can operate in both lagging as well as leading power factors?

1130

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Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

2288

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can i use ups power as a raw power for another ups

1958

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