SMA SUNNY CENTRAL Maintenance manual - Manual (Page 52)

Additional notes for Sunny Central 100 SMA Solar Technology AG
52 SCWAR-WEN094020 Maintenance Manual
7 Additional notes for Sunny Central 100
7.1 Checking the transformer and sinusoidal filter
Depending on the model, the switch cabinet of the Sunny Central 100 is initially mounted in two units,
later in one unit. In both models, the transformers as well as the sinusoidal filters are mounted
separately from the electronics in a separate chamber. Both the transformers and the sinusoidal filters
and its connections require little maintenance and are very durable. Nevertheless, you should
maintain them in regular intervals to ensure the optimal operation of the plant.
Transformer connections and sinusoidal filter connections
The transformer connections and sinusoidal filter connections require almost no
maintenance work, a visual check is sufficient.
DANGER!
Death resulting from electric shock and burning upon touching the medium-
voltage grid's live components.
• Only work on the device when it is switched off and voltage-free.
The transformer can be found in the right part of the switch cabinet in the separated side chamber.
The sinusoidal filter can be found in the rear part of the switch cabinet. The rear panel must be
removed for maintenance work.
1. Loosen the screws at the right rear panel and
remove the rear panel. The sinusoidal filter can now
be accessed.