PV Powered PVP260kW Informações Técnicas descarregar pdf (Página 52)

ampacity, temperature and conduit. In addition wire should be sized to minimize voltage

drop. Install the inverter on a dedicated branch circuit with a recommended circuit

breaker rating as specied in the following table. Refer to Table D-10 in Appendix D for

more information.

Model 480VAC 600VAC

PVP250kW 400A 350A

PVP260kW 400A N/A

PVP260kW-LV 400A N/A

Table 4-1 Branch Breaker Size Recommendations

The inverter does not have internal AC fusing so it is important to size the branch circuit

protection appropriately.

When an inverter is installed on an electrical panel of the sizes indicated in Table 4-2, the

corresponding operational voltage range is provided in the second column.

Electrical Panel

Operational Voltage Range

480VAC 422VAC – 528VAC

600VAC 528VAC - 660VAC

Table 4-2 Operational Voltage Ranges per Electrical Panel

Voltages outside this range will cause the inverter to fault.

Connecting to the Electrical Grid

DANGER

Make sure the main breaker at the AC service panel is switched OFF before

connecting the AC wires to the inverter. This breaker should be switched ON

only after all wiring has been properly connected.

DANGER

Assurez-vous que le disjoncteur principal du panneau de service CA est en

position HORS TENSION avant de brancher les câbles CA à l’onduleur. Le

disjoncteur doit être en position SOUS TENSION une fois tous les câbles

branchés.

CAUTION

To avoid an increase in AC voltage to unacceptable values while the inverter

is connected, the grid impedance value at the connection point should be as

low as possible. By keeping the grid impedance value low, the system will

achieve higher efciency.

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