Sungrow SG2K5TL, User Manual

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SG2K5TL/SG3KTL/SG4KTL-31
User Manual
32
PV arrays produce electrical energy when exposed to light and thus can create
an electrical shock hazard. Wiring of the PV arrays should only be performed by
qualified personnel.
Prior to connecting PV array to inverter, the following specifications of PV arrays
should be met:
Type DC Power Limit Open-circuit Voltage
Limit Short-circuit Current
Limit
SG2K5TL-31 2.8kW 500V 19A
SG3KTL-31 3.3kW 500V 23A
SG4KTL-31 4.4kW 500V 25A
There is a risk of inverter damage! Exceeding the above specification
requirements will cancel any and all warranty and liability claims.
The three PV strings connected to inverter should also meet the following
requirements:
z The same number of PV modules in each PV string
z
The same type of PV modules
z
The identical inclination angle of all PV modules
z The identical azimuth angle of all PV modules
6.4.1
Assembling DC Cable to Connector
DC cables from PV strings should be equipped with DC connectors. Pairs of DC
connectors are supplied in the scope of delivery.
To maintain IP65 weatherproof function of inverter, only the supplied DC connectors
or the connectors of the same protection class can be used.
DC Cable Requirements
Cross-section Area Range Max. Withstand Voltage Max. Withstand Current
2.5~4mm
2
500V Same with short-circuit current
The positive and negative connectors, marked with polarity symbols will be
assembled with colored cables as the following procedures: