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Protect PV.500 Maintenance and Servicing
80000031355 BAL 11 of 14
4.5.1 Additional Work
The following work must also be carried out, observing the safety
regulations that have been described:
Î Perform the following voltage tests:
z AC mains at X3
z DC voltage with solar inverter switched off
z MPP voltage with solar inverter switched on
z Check the following auxiliary voltages:
- X11: power supply mains 230 V
- X13: auxiliary power supply 230 V
Î Perform an insulation test:
z Individual measurement via mega-ohmmeter
z Check measured values of the integrated ISO measuring in-
strument
Starting the insulation test manually:
Active earthing can be switched off manually using PV tools in or-
der to perform maintenance work. This option is only available on
systems for thin-film cells.
The insulation test is started with a delay. When the test period
has elapsed the insulation test finishes and the active earthing is
switched on again.
The insulation test can only be started manually if an insulation
test is not already running at the time.
Î Check remote signalling contacts:
z Check remote signals
z Check the DOU
Î Check the earth connectors:
z Check earthing connections
z Check contact resistance
4.5.2 Documentation
The maintenance procedure followed and the results obtained
must be recorded.
4.6 Repair
Repairs may only be carried out on the Protect by AEG PS skilled
personnel.
If you want other personnel to carry out repairs, this will need to be
authorised by means of written approval from AEG PS. Only origi-
nal AEG PS spare parts (or spare parts purchased from AEG PS)
may be used.
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