Remos GXiS, Pilot Operating Handbook

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G3-8 MA FM 9407 - R01
7 Airplane and Systems Description
Systems 7 - 53
overvoltage protection
The aircraft is equipped with an overvoltage protection. This subsys-
tem protects the aircraft systems and the avionics in case of an over-
voltage event.
The overvoltage protection is integrated into the PSU (power supply
unit) and needs neither maintenance not operation. In case the over-
voltage protection releases due to a voltage regulator failure, it isolates
the electric system from the engine charging system
In such an event, the overvoltage warning light in the DYNON system
lights up, followed by a low voltage warning. For the pilot, this has the
identical effect as a generator failure: charging power of the genera-
tors is not available anymore and the aircraft batteries will discharge.
As soon as the electric system is shut down, the overvoltage protec-
tion automatically resets. No additional action items are required.
A thorough maintenance event is required to determine the reason for
the overvoltage event. The most likely reason is found in a regulator
failure of generator B.