how wecalculate breaking capcity of acb mcb mccb .explain with example

0 Answers   C&S, L&T,

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whenever a squirrel or a crow gets tangled near the out put of the feild transformer there is a discharge of 440 volts of current through the neutral due to which my appliances blow up causing a huge bang.will the RCCB help in these conditions

1 Answers  

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Write the formula for Fault MVA, Fault current, Base MVA.

2 Answers  

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How to Decide the Location of Earth pit for Compressor in Oil Depo? and How to measure the resistance of earth pit Pls explain me with the help of Circuit Diagram?

0 Answers   Triune,

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difference between local breaker backup relay or backup protection relay ?

1 Answers  

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what will happen if the field and armature both are made to rotate in a synchronous machine ?

4 Answers  

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how is working d.c amps meter?how to connect the dc ammeter inthe circuite?

2 Answers  

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Why tripping not occur when the transmission breaks? Doesn't we provide earthfault protection for it?

1 Answers  

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( Re: WHAT SHOULD BE THE RATING OF MCCB FOR 415V,3Ph,50KVAR CAPACITOR BANK Answer # 1 The capacitor current would be kvar x 1000 / (415 x sqrt3). This would be 70a approx. The MCCB selected should have *atleast 1.4 times this current i.e. 1.4 x 70= 98. So you should choose at least 100 A mccb.) regarding to this answer,i would like to know why the current have to times 1.4 to get the right amphere for the mccb.hows the formula to get the 1.4??tq

2 Answers  

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why voltage will come different in phase?

3 Answers   HP, Vissa,

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What are linear elements and non linear elements? and I don't want answers with graph related

1 Answers  

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what is the difference between earth, neutral and ground?

1 Answers   Farnek, Shyam Indus Power, Spiro Solutions,

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