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What is the significant difference between fault current level 25kA/1sec and 25kA/3sec in electrical transmission system?

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Question ajoutée par Md Arif Hossen , Deputy Director (Technical) , Bangladesh Rural Electrification Board (BREB)
Date de publication: 2015/06/11
ali irtaza shah
par ali irtaza shah , Management Trainee Maintenance Electrical , Fauji Fertilizer Company, Goth Machhi, Sadikabad

It indicates the fault current carrying capability of system. kA/1sec indicate system can bear kA current (definitely be fault current) for1 sec while kA/3sec says system can withstand kA current for3 sec.

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