Biddle MEGGER - Page 43

As with time-resistance measurements, the multi-voltage
method of testing insulation resistance has increased value
when made on a periodic or scheduled basis.
MQ,
D-C TEST VOLTS (KV)
ο 5 10 15 20 25
FIGURE 43
= vor rT
య
κος Y RANSFORMER ΕΕ
FIGURE 44. Time-resistance
test forms.
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