5
Functionality
Protection
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Circuit breaker failure protection •
Circuit breaker close failure protection •
Directional positive sequence power protection •
Directional negative/zero sequence power protection •
High Impedance Fault Detector •
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Control
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Auto-reclosing, single phase and/or three phase •
Synchronism and energizing check •
Loop control •
Condition monitoring
Circuit-breaker condition monitoring •
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Measurement
Digital fault (waveform) recorder •
Three-phase current measurement •
Sequence current measurement •
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Ground current •
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Demand metering, Max/Min metering •
Sequence of events recorder (SER) •
Fault Recorder •
Fault Locator (FLOC) •
Other functions
Uninterruptable Power Supply (UPS) including: battery charger, heater control, auxiliary power for external
modems, voltage boost •
Universal Power Driver (UPD) for ABB GridShield series of reclosers and others •
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