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transformer sec protection

M cebee · 2010-04-20 11:51:29

for 2 wire step down trafos feeding a dist board does the secondary winding need SC protection i'll be using D type protection on the primaries rated at 125% FLA and 10kA BC ,the final circuits at the secondary DB are protected with RCD/DP mcbs thanks

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20-04-2010 12:51pm

#1

M cebee

Closed Accounts Posts: 4,431 ✭✭✭

Join Date: January 2010

Posts: 4109

for 2 wire step down trafos feeding a dist board

does the secondary winding need SC protection

i'll be using D type protection on the primaries rated at 125% FLA and 10kA BC
,the final circuits at the secondary DB are protected with RCD/DP mcbs

thanks

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