2.9 PV
Ω
Measurement
Insulation resistance measurement between a solar panel and
ground without shorting P-N is explained as follows. For details,
see “Insulation Resistance Measurements for Solar Cell Array”
(p. A3).
Measurement Preparations
The figure shows an example of solar power generator. The
configuration may be different from actual generator.
1.
Turn OFF the main switch of the connection box to be
disconnected from power conditioner.
2.
Turn OFF all disconnect switches used for strings.
3.
If any arrester is used for measuring path, disconnect it. As
following figure does not use an arrestor for the string of
disconnect switch, there is no need to disconnect any
arrestor.
String
Power
conditioner
Arrestor
Disconnect switch
Main switch
Connec-
tion box
1 OFF2 OFF
To Next Page
Loading...
