6 Electrical Connection User Manual
38
6.4 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. Cover the PV arrays with opaque materials
and then perform the wiring. Wiring should only be performed by qualified
personnel.
Make sure that the maximum input-ground capacity of the inverter is less
than (0.12uf/kW) * 30kW/36kW, otherwise the inverter will not function
properly.
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 1Mohm.
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.
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