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What is the cause for a blown fuse in one phase of primery
side(HV) of a three phase transformer( 4169v-460v) in the
time of closing its supply breaker.
There is no load on the secondery side of the transformer
in this moment.

Answer Posted / pillay

It could be just high inrush current,
incorrect fuse size or a defective fuse
in the first place.If it recurs than
further investigations should be taken.

Is This Answer Correct ?    3 Yes 0 No



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