Can a dc motor works as a dc generator. If yes , then how?

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what is JE exam?

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How to decide no. of Step and Kvar for APFC Panel 40 kvar MD: 33.12 KVA Avg pf : 0.8540

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do you know measure the earth resistance?explain

1 Answers   Dalkia,

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I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

0 Answers   Siemens,

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What is the different between earthing & Neutal

3 Answers  

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I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

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what is the difference between general inverter and solor inverter clerly explain plz

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what is the relationship between current and frequency in AC circuit?

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difference between a diode and thyristor?

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What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

3 Answers  

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what is mean by transition resistance of transformer?

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