How vaccum is formed to create a vaccum interrupter or anything related with vaccum?

6 Answers  

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what is means of CLASS in current transformer name plate?

3 Answers  

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photo conductive cell

4 Answers   Bhel,

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why we use taping of transformer on HT side?

4 Answers  

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how to test power transformer.YNd11

0 Answers  

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I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

0 Answers  

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-How do you select cable size for a given load at a given distance from source of supply. How do you find voltage drop.

0 Answers  

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what is the best transformer oil breakdown voltage?

0 Answers  

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Sparking occur when a load is switched off because the circuit has high – a.) Inductance b.) Capacitance c.) Resistance d.) None

3 Answers   Ecil,

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Why used IGBT IN AC Drives

4 Answers  

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What happened when the field winding of dc series motor is open?

2 Answers   Bhel,

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why there is 1 phase and 3 phase but not 2 phase and 4 phase?

3 Answers  

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