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Digital Energy  Protection & Control Specialized Protection / Control |
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The DBF is a digital breaker failure relay that provides phase and ground backup protection if the primary circuit breaker fails to clear a system fault.  Two step instantaneous and/or time delayed breaker failure Phase instantaneous overcurrent Ground instantaneous overcurrent Three phase direct trip Internal arcing protection Operation failure detection Three settings groups 14 configurable inputs  Current metering Breaker health monitoring Event recorder, last 165 events
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