Electrical Connection
4.7
Grounding the Inverter
Because of the transformless design of the inverter, DC positive pole and DC
negative pole are not permitted to be grounded. Otherwise the inverter can stop
running.
All non-current carrying exposed metal parts of equipment and other enclosure
in the PV power system should be grounded (e.g., PV arrays, DC circuit breaker
and inverter).
For AC side, it is better to use a continuous irreversibly appropriately sized
conductor bare to ground inverter.
Inverter
Grid
electrode
Fig 4-3 AC Side of Inverter Grounding
31
AC air switch
AC grounding