what is PWM in IGBT and how it works for drive.?

0 Answers   BRG,

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If the feeder rating is 7.5 kw or 10 HP star-delta feeder, MCCB is taken as 63 a, contactors-32 a, how much will be the OLR rating or which range OLR should be considered when we concern about type-2 coordination?

0 Answers  

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What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

0 Answers   HAL,

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how can we select the type of wire.what factors we have to look on it , do we have some formula to calculate it. please guide me on it

0 Answers  

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what is the difference between "ampere trip and ampere frame"

1 Answers  

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What do you mean by creepage distance?

4 Answers   Amara Raja,

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what is power factor ?

12 Answers   KSEB,

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Explain the construction of the conservator, operation and purpose, and draw the diagram of the conservator.

0 Answers   Siemens,

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carbon zinc cell voltage?

3 Answers  

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how to select the double earth conductor if 21A full load?

0 Answers   L&T,

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1 ton aircondition(AC)consume how much watt?

6 Answers   Indus Towers,

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Why we are not placing c.B 's btwn generator and transformer.? what happens when generator gets disconnected from transformer when it is running @ full load?

3 Answers   Areva,

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