Automatic Recloser

Functional Features:
The breaker can be fitted with a spring operating mechanism, providing basic functions such as switching load current, overload current, and short-circuit current; the breaker can be fitted with a surge arrester, which can be installed on either the incoming or outgoing side per user requirements; the breaker can be fitted with an inrush-current controller, giving it anti-inrush and instantaneous-overcurrent-tripping capability; the breaker can be fitted with 2-3 measurement or metering transformers, and can be combined with a reclosing controller to form an intelligent recloser-type breaker. The basic version combined with a reclosing controller suits locations where power is easily obtained, while the PT version combined with a reclosing controller suits locations without a power source; the intelligent breaker is suitable for radial and ring-main supply systems, helping the system clear transient faults and automatically restore supply, and can also isolate permanent faults to achieve distribution automation. It gives the breaker 1 to 3 reclosing operations, with adjustable recloser parameters. The intelligent breaker provides three-stage composite protection consisting of closing inrush-current control, overcurrent protection, and short-circuit instantaneous tripping, with continuously adjustable parameters; the intelligent breaker provides low-current earth-fault protection with continuously adjustable parameters; the intelligent breaker supports both wired remote control and wireless remote control from the pole base. It can be fitted with a voltage transformer that draws power from the high-voltage side of the line, able to supply 220V, 110V, or 100V to itself or other control equipment as needed; the breaker (small-hydropower type) can be used to monitor line voltage — when overvoltage or undervoltage occurs, the controller automatically opens the breaker, making it widely applicable for monitoring and automatic fault isolation at grid-tie branch points of small hydropower lines; the breaker (metering type) can output voltage and current signals at 0.2-class accuracy, making it an ideal choice for rural-grid substations, remote outdoor switches, and simple metering switches. It can be fitted with an electronic PT that draws power from the CT to charge the battery, enabling multiple energy-storage and switching operations under a loss-of-voltage condition, and can supply operating voltage to external equipment; it provides three-stage composite protection consisting of closing inrush-current control, overcurrent protection, and short-circuit instantaneous tripping, with protection parameters continuously adjustable by the user; it supports both wired remote control and wireless remote control from the pole base.

Applications:
Suitable for radial and ring-main supply systems, helping the system clear transient faults and automatically restore supply, and able to isolate permanent faults to achieve distribution automation. Widely used for monitoring at grid-tie branch points of small hydropower stations and for metering and protection at rural-grid substations and similar scenarios.