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Transformer Riddle No.100 - Selection of Earthing Transformer
What should be the rating of Zig-Zag type Earthing Transformer to be placed at 3.3kVside of a 66/3.3kV ,YNd1 transformer for providing E/F protection at 3.3kV side?What factors to be considered for selection of it?
Author : V.K.Nambiathiri - From: India
Sun, February 16th, 2014 - 18:18
In medium voltage distribution system, the earthing transformer usually designed to limit the prospective earth fault current to the continuous full load current of the main power transformer up to a maximum size of 1000Amps. 
Author : Hamid - From: Iran
Sun, February 16th, 2014 - 18:38
What I am asking regarding zig-zag winded Earthing Transformer providing at Delta side of Power Transformer 
Author : V.K.Nambiathiri - From: India
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