what is self commutation how a thyristor discharges through a capacitor and inductor

3 Answers  

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WHAT IS counter flux IN CT?

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why the voltage is in digit of 11/33/132/220/440 please send me on shukrerabbi_abkhalil@rediffmail.com with thanks

3 Answers  

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how does excitation of brushless alternator took place?

1 Answers  

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main difference between ac and dc?

0 Answers   Classic Network,

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What is the meaning of Dyn11 of Transformer.

17 Answers  

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If We are converting the SINGLE PHASE AC into THREE PHASE AC by using STATIC CONVERTERS , then How do we bring the frequency to 50 hz??

2 Answers  

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How to reduce power factor correction capacitors failure in an industrial environment with vsd and computers usage in the system

2 Answers   ABB,

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IN star -delta motors normally first operated in star mode {absulated given (r-y-b) phases after one miute change in delta mode in this case i am change phase sequience for example R -PHASE TO CHANGE Y-PHASE ;Y-PHASE TO CHANGE R-PHASE SO THIS TIME MOTOR WILL HAPPEN RUNNIG MODE EIGHTER(OR) STOP MODE(TRIP MODE)

6 Answers   MacLellan,

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how step up transformer step up the voltage and what is the reason behind it?

3 Answers  

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what causes contact chatter when there is no demand on the air conditioning unit?

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why an ac solenoid valve attract the plunger eventhough we interchanges the terminal?will the ploes changes?

1 Answers  

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