what is the difference between MCB & MCCB

3 Answers  

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when an induction motor runs on load.at that time if we reduce the supply voltage the current increases.But when it runs without load,if we reduce the supply voltage the current also reduced.why?.i checked it practically also.

1 Answers   Birla,

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How earth fault & earth leakage equvpment are works?

5 Answers  

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Why use the VCB at High Transmission System ? Why can't use ACB? Pls explain the ans.

5 Answers   amps, DLF,

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how many maximum nos of add on contact we shd provide on 4 no contactor

1 Answers   Accenture,

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why a three phase induction motor cannot run at synchronous speed ?

7 Answers   RUET,

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is it possible to flow a current between nutral and earth in a circuit? although nutral and earth having same potential diffrence? i=0/r=0A if any body now any solid reason because i am getting a triping problem in rcbo due to nutral and earth shorting???

2 Answers  

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why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

0 Answers   HCL,

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in 3 phase induction motor resistance value is how much

1 Answers  

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why substation rating interms of 11 multiples???like 11kv/33kv iis there any special reason???

5 Answers  

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how DC motor operating in detail .pls any one guide me .iam not clear idea about that .thank u

2 Answers  

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What is the classification of hydro projects based on installed capacity?

0 Answers  

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