Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.

0 Answers   DT Technologies,

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what is meant by lagging & leading current

1 Answers   TATA,

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What is phase angle? and what is importance to measure it?

2 Answers  

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what is the difference between current rating and breaking current of an MCCB? and for a known load how to calculate the current rating of a MCCB?

1 Answers   HPL,

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what happen if drive input fail momentry at 48.5 HZ frequency?

0 Answers  

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what is diffrence b/w -48vdc and +48vdc ?

1 Answers  

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WHY WE USE SIEMENS plC

3 Answers  

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in india single phase is 230v and three phase is 440v but in other countries single phase is 110v and three phase is 380v why..?

2 Answers  

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In a parallel circuit dc circuit with two resistors, if you know the voltage, amperage, and one resistors ohms, what formula is used to find the second resistors ohms?

6 Answers  

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how to reduce earth resistance in sandy soil.

1 Answers  

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What is the PI test stand for transformer and what is the producer to do this test?

1 Answers  

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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

2 Answers  

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