When PRV operated at power transformer ,can anybody tell me particular pressure for 50mva transformer plzzz.



When PRV operated at power transformer ,can anybody tell me particular pressure for 50mva transforme..

Answer / k.prakashchandra

PRV is provided to prevent tr from bursting due to the internal pressure . It could be from 0.4 Kg/cm2 to 4 Kg /cm2. The older tr s had explosion vent with copper foil

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