Detection of abnormally low frequency compared to the rated frequency, to monitor power supply quality.
The protection may be used for overall tripping or load shedding.
Protection stability is ensured in the event of the loss of the main source and
presence of remanent voltage by a restraint in the event of a continuous decrease of
the frequency, which is activated by parameter setting.
The protection may be used for overall tripping or load shedding.
Protection stability is ensured in the event of the loss of the main source and
presence of remanent voltage by a restraint in the event of a continuous decrease of
the frequency, which is activated by parameter setting.
