Summary
        ZW32-12F outdoor AC high voltage vacuum boundary breaker (hereinafter referred to as boundary breaker) is a new product independently developed by our company. Boundary breaker is a multifunctional intelligent device product integrating vacuum breaker and boundary watchdog controller. It is mainly equipped with vacuum boundary breaker body, intelligent boundary controller and external voltage Transformer (Note: double side Pt can be selected in the distribution automation loop network line) is composed of three parts. The product is widely used in 10kV urban and rural distribution network frame air loop network line as section isolation switch, contact switch, automatic switch device which can implement the load distribution of the loop network line, and can be used as boundary switch (commonly known as watchdog) in the branch line of large user power supply The overhead feeder distribution network is used as the sectionalizer of the boundary breaker. The vacuum boundary breaker has the functions of remote management, protection control and communication. It can reliably judge and detect milliampere zero sequence current and phase to phase short-circuit fault current in the boundary, and automatically cut off single-phase ground fault and phase to phase short-circuit fault. This installation and operation manual specifies Reference standard, operating environment conditions, model and rated parameters, structural characteristics, working principle, ordering instructions, operation, installation, use and maintenance of boundary breaker Methods and so on.

Environmental conditions for use
1) Altitude: < 2000 m
2) Ambient temperature: Outdoor - 30 ℃ ~ + 55 ℃ maximum annual average temperature 20 ℃, maximum daily average temperature 30 ℃
3) Relative humidity: 95% (25 ℃)
4) Seismic capacity: ground horizontal acceleration 0.3g ground vertical acceleration 0.15g
5) Seismic intensity: 7 degrees
6) Maximum daily temperature difference: 25 ℃
7) Sunshine intensity (when the wind speed is 0.5m / s): 0.1W / cm2
8) Maximum wind speed: 34m / s
9) Maximum icing thickness: 10 mm
10) Installation location: the user responsibility demarcation point of outdoor and 10KV overhead lines.
11) Grounding mode: neutral point ungrounded, grounded through arc suppression coil and grounded with low resistance

Model and meaning


Main technical parameters


Outline and installation dimension drawing