Sungrow SG25CX-P2, Руководство пользователя

Страница: 45 / 115

35
AC Circuit Breaker
An independent circuit breaker or fuse should be installed on the output side of the inverter
to ensure safe disconnection from the grid.
Inverter
Recommended rated voltage
Recommended rated
current
SG25CX-P2 400V 63 A
SG30CX-P2 400V 63 A
SG33CX-P2 400V 80 A
SG36CX-P2 400V 80 A
SG40CX-P2 400V 100 A
SG50CX-P2 400V 125 A
AC circuit breakers should be installed on the output side of the inverter and the
grid side to ensure safe disconnection from the grid.
• Determine whether an AC circuit breaker with greater overcurrent capacity is re-
quired based on actual conditions.
• Do not connect any local load between the inverter and the AC circuit breaker.
• Multiple inverters cannot share one AC circuit breaker.
Residual Current Monitoring Device
With an integrated universal current-sensitive residual current monitoring unit included, the
inverter will disconnect immediately from the mains power once a fault current with a value
exceeding the limit is detected.
However if an external residual current device (RCD) (type A is recommended) is mandatory,
the switch must be triggered at the residual current. RCD of other specifications can also be
used according to local standard. The recommended residual current is as follows.
Inverter Recommended residual current
SG25CX-P2 300 mA
SG30CX-P2 300 mA
SG33CX-P2 330 mA
SG36CX-P2 360 mA
SG40CX-P2 400 mA
SG50CX-P2 500 mA
Multiple Inverters in Parallel Connection
If multiple inverters are connected in parallel to the grid, ensure that the total number of par-
allel inverters does not exceed 30.
User Manual 5 Electrical Connection