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IGBT power semiconductors of the inverter, a voltage system of
the highest quality and availability on the secured busbar.
In the event of mains faults (such as e.g. current failures), the
voltage continues to be supplied from the inverter to the load
without any interruption. From this point onwards, the inverter
draws its power from the battery instead of the rectifier. Since no
switching operations are necessary, there is no interruption in
the supply to the load.
The automatic electronic bypass serves to increase the reliability
of the supply further, especially in the case of individual systems.
It switches the public mains directly through to the load without
any interruption, e.g. when there is an inverter malfunction. As a
result, the automatic bypass represents an extra passive
redundancy for the load.
An integrated, manually operated bypass unit ensures an
uninterrupted supply to the connected loads in the case of
maintenance and/or service work. The internal electronic part
(with the exception of the metal-clad manual bypass) can be
disconnected via the mains input miniature circuit breakers.
The greatest possible supply reliability of connected loads is
attained by the parallel connection of up to max. three
PROTECT 1. UPS systems. The n+x technology thus
guarantees maximum reliability through up to double active
redundancy on the one hand as well as on the other hand the
possibility of increased power with simple redundancy or even
only higher UPS power without any redundancy. The relationship
between the available output power and the degree of active
redundancy can be seen in the following overview:
Parallel system with PROTECT 1.100
Number of UPS units
Available power
1 2 3
0 10 kVA 20 kVA 30 kVA
1 --- 10 kVA 20 kVA
Active
redundancy
degree
2 --- --- 10 kVA