Sungrow SG2K5TL-S, User Manual

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5 Electrical Connection User Manual
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Step 9
Make sure the AC and DC circuit breaker are disconnected.
Step 10
Connect phase cable and “N” cable to AC circuit breaker.
Step 11
Connect AC circuit breaker to utility grid.
Step 12 Make sure all AC cables are firmly installed.
5.5 Connecting Inverter to PV Arrays
Lethal voltage exists!
PV arrays produce electrical energy when exposed to light and thus can
create an electrical shock hazard. Wiring should only be performed by
qualified personnel.
Before connecting the PV arrays to the inverter, make sure that the
impedances between the positive terminal of the PV string and Earth and
the impedances between the negative terminal of the PV string and Earth
are larger than 200Kohm.
There is a risk of inverter damage! The following requirements should be met;
otherwise they will lead to loss of any and all warranty rights.
y
Make sure that the maximum short circuit current of each DC input is less than
inverter allowable limit.
y
Make sure that the maximum open voltage of each string is less than 1000V.
Voltage over 1000V can damage the inverter.
If the input line is changed, such as input line falls off, etc. You need to
reset the work mode.
5.5.1 PV Inputs Configuration
For -S series inverters, there’s one input area with one MPP tracker. They can be
configured in parallel mode only.
For –D series inverters, there’re two PV input areas, each owning its MPP tracker. The