Checking Pv Power System Flow Chart - Sharp JH-1600E Service Manual

2. Checking PV Power System Flow Chart

Before checking the solar power conditioner, confirm that the following setting and
connections of the PV power system:
Check DC disconnect device
Check AC disconnect device
Check utility grid voltage
Check Solar Power Conditioner
1. DC disconnect
2. PV string
3. AC disconnect
4. Utility grid
Check PV system
Connection
OK?
YES
Check PV string Voltage
Voltage OK?
(60~120Vdc)
YES
Connection
OK?
YES
Voltage OK?
(210~250Vac)
YES
Operation
OK?
YES
System Recovery
NO
Repair DC disconnect
device
NO
Repair PV module
NO
Repair AC disconnect
device
NO
Ask about normal utility to
power company
NO
Repair solar power
conditioner
12