power transformer Buchholz relay
power transformer Buchholz relay
(OP)
Hi, We have new power transformer to be commissioned. How we can test Buchholz relay and oil/winding temperature indicator ?
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power transformer Buchholz relay
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RE: power transformer Buchholz relay
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If your relay is similar .
RE: power transformer Buchholz relay
normally there will be plunger (usually protected by protective cap. near the Buchholz relay and you can see the movement of the mechanism from the sight glass. If u have two stage of tripping then you have to press the plunger slowly down for stage 1 trip and further down for stage 2 trip. Via a aux contact from the buchholz measure the state of the contact as you press the plunger down.
RE: power transformer Buchholz relay
This is the only way to check the integrity of the floats and pivots.
RE: power transformer Buchholz relay
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