CH20-12/630-20 Outdoor AC high voltage automatic recloserDetailed product description：

CH20-12/630-20 outdoor AC high-voltage automatic recloser (hereinafter referred to as recloser) is a new generation of outdoor distribution equipment developed by digesting advanced foreign technology and combining with the characteristics of China's power industry. It is a distribution device that integrates line protection, telemetry, remote control, and remote adjustment, with added functions of line relay protection, local and remote control, four remote and computer communication.

CH20-2/630-20 outdoor AC high-voltage automatic recloser is used in conjunction with ZW20 outdoor high-voltage vacuum circuit breaker to avoid power outages caused by instantaneous faults, timely cut off permanent fault lines, minimize power outages, narrow the scope and duration of power outages, and greatly improve the power supply reliability of the distribution network.

2、 Product Features
a) Power supply situation: Comes with a built-in power supply (secondary energy accumulation from CT) or an external power supply.
b) Overcurrent protection function: inverse time/timed overcurrent protection, overcurrent setting value can be set arbitrarily by the keyboard.
c) Quick break protection function: The quick termination value can be set arbitrarily by the keyboard.
d) Small current grounding protection function: timed small current grounding protection, the protection current can be set arbitrarily by the keyboard.
e) Recloser function: Multiple reclosing function, the number of recloses and reclosing interval can be set arbitrarily by the keyboard.
f) Inverse time limit function: Provides 39 inverse time limit curves, which can achieve automatic cooperation between upper and lower level stations.
g) Sequential coordination: When a fault occurs on the line in front of the recloser, prevent unnecessary actions of the lower level recloser; For faults on the lower level recloser circuit, the upper level recloser can achieve automatic fault interval isolation without disconnection.
h) The "four remote" communication function: standard RS-485 communication interface, which can be used in conjunction with related equipment to achieve remote control of wireless, wired, fiber optic, microwave, carrier, etc.