34 REFUsol 40K / 46K-MV REFU Elektronik GmbH
5.2
Switching on the Device after Replacement
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.
1. Remove any covers and barriers to adjacent live parts.
2. Remove any temporary short-circuit or grounding jumpers previously installed in the DC and/or AC
system conductors.
3. Connect PV strings to the inverter or combiner box.
4. Checking of the AC and DC voltages applied on the connection.
5. Remove LOTO devices in accordance to the site owner's electrical safety procedures.
6. Switch the DC combiner box disconnect switch to the “ON” position.
7. If applicable, close the inverter's DC equipment disconnecting means.
8. Close the inverter's AC branch circuit breakers.
If at the DC input of the inverter sufficient voltage is present, the inverter starts operation.
Pos: 48 /Inverter M anuals/Betri eb/Inbetrie bnahme/Gerät ein schalten/W iedereinsc halten/Spannu ngsfrei schalten/ 842 843 844 @ 3\mod _1487675254 142_641.docx @ 27929 @ 2 @ 1
Note:
The control panel, including its status indicators, display, and operator keys,
is only active when the PV generator is supplying sufficiently high voltage.
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