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000057BG
2 - Characteristics
P
rotective devices
A
nti-Islanding
In the event of a local grid outage by the electricity company, or when the
equipment is switched off for maintenance operations, the inverter must
be physically disconnected safely, to ensure protection of people work-
ing on the grid, all in accordance with the relevant national standards
and laws. To prevent possible islanding, the inverter is equipped with an
automatic protective disconnection system called “Anti-Islanding”.
G
round fault in the photovoltaic panels
An advanced ground fault protection circuit continuously monitors the
ground connection and disconnects the inverter when a ground fault indi-
cating this condition by means of the red GFI LED on the LED panel
14
.
This functionality is active also in the event of grounded connection of
one of the two input poles of the inverter.
F
urther protective devices
The inverter is equipped with additional protective devices to guarantee
safe operation in any circumstance. These protective devices include:
- Continuous monitoring of the grid voltage to ensure the voltage and
frequency values stay within operating limits;
- Control of internal temperatures to automatically limit the power if nec-
essary to ensure the unit does not overheat (derating).
The numerous control devices produce a replete structure to guarantee totally safe operation.
