Sungrow SG1K5TL, Руководство пользователя

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Electrical Connection
5
35
5.7
Grounding of Inverter
Because of the transform-less 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
AC Grounding Electrode
L
N
L
N
AC Circuit Breaker
GND
PV Arrays 1
PV Arrays 2
PV Arrays n
Inverter 1 Inverter 2 Inverter n
Grounding Electrode
Copper Bus Bar
Mounting Frame of PV arrays
Grounding of PV Power System
Grounding of Inverter AC Side
N
L
N
L
N
L
Fig 5-3 AC Side of Inverter Grounding