ZW20-12 Outdoor AC High-Voltage Boundary Switch 

（Automatic circuit recloser）

1.General  Description

 ZW20-12 Outdoor AC High-Voltage Boundary Switch is 3 phase.AC 50(60)Hz outdoor high voltage distribution equipment with 12kV rated voltage,which

can be used to open or close loading current. over-loading current and short-circuit current.It is widely used in urban electrical automatic network and comply

with GB1984-2003.

2.Applying  conditions:

Ambient temperature;-30℃----+40℃,Daily average ≤25℃

Wind speed: ≤34m/s

Ambient pollution：Common III,special IV.

Altitude：≤1000m；（Not including special requirement）

Remark:Should discuss with manufacturer when applying  condition is exceeded normal condition.

3. Structural characteristics:

1.Equipped with intelligent controller to achieve remote control,remote measure,remote detection and remote adjustment.

2.Operating mechanism:Operate by manual or electric in close range or remote-controlled operation.

3.Reliable seal:SF6 barometer measure that the pressure is 0.Adopt mature seal technology to avoid gas leak.

4.Unique Wiring method:Adopt silicone rubber tube to keep abundant insulating distance between terminals.Excellent outer insulation.

5. Safe use：Put explosion-proof equipment onto top tank to avoid high-temperature gas and splash leak,even if there is inner fault.

6.Equipped with controller and external voltage transformer to judge and test if there is inbound &outbound milliampere zero sequence current or circuit failure current between phases .

4.Technical specification

5. Overall drawing

6.Secondary connection diagram