Category: PMI Products, Power Quality, Voltage Unbalance, Guardian, Voltage
A recloser is most associated with brief voltage interruptions, possibly followed by an extended outage if a fault cannot be cleared. Upstream customers experience voltage sag during the reclose attempts, when fault current is flowing.
A voltage swell seems counterintuitive during a fault or recloser operation, but in some situations the voltage can raise considerably during the reclose time. This phenomenon is discussed here along with a real-world example.
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