Answer Posted / jh

WHAT IS THE NAME OF OIL USED IN TRANFORMER?

Difference between shunt, PMG and AREP excitation. Which is the most reliable between PMG and AREP.

9007

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what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency.

2756

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why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points

1607

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Single line digram for 11 kV to distribution use go,la and do

1293

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what is the difference between oil surge relay and buchholz relay.

6423

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how can we phase identification in a distribution line,how we recognise that which phase is coming for a house hold connection.help me............

1582

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I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.

1596

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What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?

1928

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Why lose 1 phase voltage in 33kv to 415v stepdown transformer

1313

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sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

1738

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how to calculate units consumption for a 12 hp motor /hr.

1033

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What does bode plots shows?

672

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What is the significance of integral controller and derivative controller in a pid controller?

632

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If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V

1191

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What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.

1298

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