Page 69 - Basic PD Theory

Flow Charts

G. PD Flowcharts

Input current PD
levels Comparison to similar
machines

Higher than No No specific
typical?
problems –
monitor 6 months

Yes

Further
investigation A
required

Input current PD
levels

Trend of results for same
machine

PD increase > No No specific
150%? problems –
monitor 6 months

Yes

Further
investigation
required B

64 | P ag e