What is in this article?:
- Troubleshooting Small-Scale Photovoltaic (PV) Systems
- SIDEBAR: PV System Notes
- SIDEBAR: Safety Warning
Electrical contractors can gain confidence and experience with photovoltaic (PV) systems by performing basic troubleshooting practices on string inverter-based equipment
SIDEBAR: Safety Warning
The systems outlined in this article use high DC voltages that cannot be simply turned off. This discussion is limited to test techniques that do not require disassembly of the PV array, but there is some exposure to terminals within the equipment that will normally have high voltages. Any work on roofs requires fall protection for safety.