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WHAT IS THE DIFFERENT BETWEEN MCB & MPCB? & HOW IS USE?
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Answer Posted / jvino03
MCB means Miniature Circuit Breaker, MPCB means Motor
Protected Circuit Breaker, Generally MCB comes under 2A to
100 A current only, MPCB used for Motor Protection it
contains OLR inbuilt
| Is This Answer Correct ? | 5 Yes | 0 No |
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a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5
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