What is the purpose of SSVW, IOVW, DVDF Tests in transformer? Those who are an

What is the purpose of SSVW, IOVW, DVDF Tests in
transformer? Those who are answering, pls send mail ids
also.

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What is the purpose of SSVW, IOVW, DVDF Tests in transformer? Those who are answering, pls send ma..

Answer / guest

IOVW is done to check the adequacy of inter turn and line
end insulation aswell as main insulation to earth and
between windings.
SSVW is done to check the adequacy of main insulation to
earth and between windings.

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