Answer / abhishek tiwary

capacitor improves the pf

What is current chopping in CB?

1 Answers  

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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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give me name of current and volatge control device

1 Answers  

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what is the differencce inn series and cascade connection??

0 Answers  

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. Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

1 Answers  

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A rotor of an induction machine is delta connected. Now is there any necessacity to short the slip rings?

8 Answers   TCS,

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what is stper motor.what is its uses

9 Answers   Bhel, HCL,

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What is the function of stater in tube light circuit?

2 Answers   SysArc,

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how i decrease the neutral to ground voltage , thats i read 7v on my digital meter.i dont know about my earth pit.

2 Answers  

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What is Exitation voltage and Exitation current? What is the function of these in Alternator?

2 Answers   TC, Tisco,

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what is "pu" in electrical engg.

4 Answers  

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identify the components of the tube light and explain how they function???wat is inside the fluroscent tube???how it works???

7 Answers   NTPC, TPL,

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