What is polarisation index value?.(pi value)
Simple & brief definition of polarisation index?..
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Answer Posted / rajpalsing rajput
It is the ratio of IR value at 10 min to the IR value at 1
min.It is measure of condition of insulation system wether
it is clean or dirty.If it is greater than 2 indicat the
good condition of insulation system and if it is greatore
than 6 indicate that insulation system is thermally degrade.
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