– The enclosed documentation is an integral part of the product. The documentation must be read, observed
and stored in a place which is freely accessible at all times.
2.2 Protection features
The following monitoring and protection functions are integrated in the device:
– Overvoltage conductor / varistor to protect the power semiconductors from high-energy transients on the
grid and generator sides.
– Device temperature monitoring system
– EMC filter to protect the inverter from high-frequency grid interference
– Grid-side varistors grounded to earth to protect the product against burst and surge pulses
– Anti-islanding detection according to the current standards.
– Isolation detection / residual current monitoring and disconnection function to detect isolation faults
NOTE
Information on other applications / system set ups (e.g. parallel operation / multiple bidirectional feed-in in-
verter) is provided project specific as an application note. For further details, please contact our KACO sales
team pv-projects@kaco-newenergy.de.
NOTE
If the device is connected, the overvoltage conductors / varistors contained in the device have an impact on the
electrical system insulation resistance test as per HD 60364-6 / IEC 60364-6 Low-voltage installations- Part 6:
Verification.
IEC 60364-6 6.4.3.3 describes two options for this case. The first option is to disconnect devices with an over-
voltage conductor or, if this is not practicable, then the test voltage can be reduced to 250V.
2 | Safety Manual
KACO blueplanet gridsave 92.0 TL3
Page 8
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