UOF protection is an optional protection element that can be configured to trip the switchgear if the measured frequency deviates above or below acceptable levels for user-set times.
UOF protection can also be configured to automatically reclose the switchgear after an UOF protection trip if the system frequency has returned to within a normal frequency band.
UOF elements have separate On/Off controls so that either or both can be operational at any one time.
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