Answer / vinoth_sundar

VCB is vaccum circuit breaker which is used in HT lines.
MCCB is mould case circuit breaker which is used in LT lines
upto 1000V

Answer / guest

vcb is placed on hts lines and mccb is placed on lts lines

Answer / rajan.s

vcb in HT BANEL 33KV mccb lt RANGE 25A TO 1600A

Answer / vinayak

I think the vcb's are used for HT
lines(above 33kv) and mcb's &
mccb's are used on LT lines upto
33kv.

Explain UPS

1 Answers   Powerica,

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what r the sizes of CB's? how to select CB's?

1 Answers  

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Which one is given high energy in same power consumption AC or DC

1 Answers   Dhyey Creation,

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Why have to use copper cable for local isolator to motor ?

1 Answers  

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In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?

1 Answers   TATA,

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Why dose voltage rated at 11kva

1 Answers   TK Chemical Complex,

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STATE WORKING OF VACCUM CIRCUIT BRAKER?

1 Answers   ABB, BEML,

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can you any one give exact mathematical relation between AC current and DC current?

1 Answers  

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what is meant by armature reaction & where its happen ?

3 Answers  

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v=r*i this means when voltage increases current also increases at constant resistance.... p=v*i this means when voltage increases current decreases to maintain the power constant which one is true...

3 Answers  

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why we connect dg neutral with ground?

1 Answers  

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what mean by power factor

2 Answers  

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