REFU Elektronik GmbH REFUsol 40K / 46K-MV 33
5
Commissioning
Before commissioning the inverter, be sure the following steps have been completed:
Measurements tests were performed and summarized in a test report:
The grounding connection has been checked.
Isolation of strings to ground has been checked.
Functional tests were performed and summarized in a test report:
The correct grid code (IEEE 1547 or IEEE 1547a) is selected.
If applicable, further requirements and technical rules need to have been considered in this context
(e.g. Authority Having Jurisdiction (AHJ)).
Pos: 47 /Inverter M anuals/Betri eb/Inbetrie bnahme/Gerät ein schalten/W iedereinsc halten/Spannu ngsfrei schalten/ 840 842 843 844 @ 1\m od_1411485 727451_641. docx @ 8078 @ 22 @ 1
5.1
Switching on the Device at Initial Start-up
The electrical system to be connected was prepared according to the five safety rules.
DANGER
Risk of death by electric shock
Disconnect electrical systems according to the 5 safety rules:
Disconnect mains.
Prevent reconnection.
Test for absence of harmful voltages.
Ground and short circuits.
Cover or close of nearby live parts.
The grounding and DC connection of the inverter/combiner box is installed.
1. Connect PV strings to the inverter or combiner box.
2. Check that all connections and covers are securely fastened.
3. Turn on DC voltage across switch separator.
4. Close the inverter's AC branch circuit breakers.
If at the DC input of the inverter sufficient voltage is present, the inverter starts operation.
Note:
The control panel, including its status indicators, display, and operator keys,
is only active when the PV generator is supplying sufficiently voltage.
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