What do you mean by reverse current braking of an induction motor?

1 Answers  

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what is the difference betn earthed and unearthed cables which is commanly used why?

2 Answers   Bhel, Power Grid,

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Why screen of the screened cable not earthed on both the ends of cable

1 Answers  

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what is the function of choke and starter in a tube light??

2 Answers  

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Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.

0 Answers  

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Which type of control system is expensive — closed loop or open loop?

1 Answers   GE,

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present we are having 0.8pf but I want increase it up to 0.99 so what is the formula for it and how can i calculate?

3 Answers   ABB,

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what are the application of over current relay?

2 Answers  

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what is the principle of vvvf drive motor

3 Answers  

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can i connect REF and Differencial relay in 1 CT core for transformer protection?

0 Answers  

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Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

0 Answers  

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What is the formula to calculate distribution transformer De-rating on iron losses basis

0 Answers   IESCO,

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