7/7/2013 2:41 AM | |
Posts: 109 Rating: (11) |
What is meaning of breaking capacity and making capacity of breaker? which should be higher? |
7/7/2013 3:39 PM | |
Posts: 109 Rating: (11) |
Thank you PISCEAN 2010and Amit_86 I also googled but not found much detailed so I search my books and here what I understands Making capacity - means currentcapacity of the breaker in KA which it can handle during closing even if line has short circuit fault. So it is designed basically assuming that there is a short circuit and breaker contact should withstand this much current in this fault condition during closing Breaking Capacity - Means current capacity of the breaker which it can handle during opening. This will be less compared to Making capacity because this time breaker doesn't have to interrupt high short circuit current at first peak - first peak will be the maximum value Actually I knew some basics but last week my boss confused me |
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