different b/w counter poise and ground wire

1 Answers   L&T, TCS,

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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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how does ELR works? explain

0 Answers  

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Why Delta Star Transformers are used for Lighting Loads.

6 Answers  

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Why AC & DC capacitor are use in UPS ??????????????????

0 Answers   Sanghi,

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hot water tank,top element 240v across,the bottom 120v across,why?

1 Answers  

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Getting nusense tripping in a 11KV soft starter, have checked all it control supply & contactors but did not get any fault please help.

3 Answers  

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Why current leads the voltage in case of capacitor load? Why voltage leads the current in case of inductive load? Why both are with in phase in case of restive load?

3 Answers   TATA,

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Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

0 Answers   College School Exams Tests,

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Why Neutral Earthing pits and body earthing is interconnected

3 Answers   Taj Group,

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What is ac and dc drive.

1 Answers  

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How can we checked Killo Watts of Motor & Alternator?

0 Answers  

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