I. Overview:

The operating mechanism adopts a miniaturized spring operating mechanism, with low power of the energy storage motor and low energy consumption for opening and closing; The mechanism transmission adopts the true motion transmission method, with a small number of components and high reliability. The operating mechanism is placed in a sealed mechanism box, which solves the problem of rusting of the operating mechanism and improves its reliability. The three-phase pillars and current transformers adopt imported outdoor epoxy resin solid insulation, or indoor epoxy resin wrapped with organic silicon rubber solid insulation; It has the characteristics of high and low temperature resistance, UV resistance, and aging resistance.

II. Environmental conditions for use

1. Altitude: ≤ 2000m and below;

2. Surrounding air temperature: upper limit+30 ℃, lower limit -40 ℃;

3. The wind pressure shall not exceed 700Pa (equivalent to a wind speed of 34m/s);

4. Amplitude: impermanent and intense vibration;

III. Structural characteristics

1. The circuit breaker adopts a three-phase pillar structure, which has the characteristics of stable and reliable breaking performance, no combustion and explosion hazards, maintenance free, small size, light weight, and long service life.

2. The circuit breaker adopts a fully enclosed structure with good sealing performance, which helps to improve moisture-proof and anti condensation performance, especially suitable for use in cold or humid areas.

3. The three-phase pillars and current transformers adopt imported outdoor epoxy resin solid insulation, or indoor epoxy resin wrapped with organic silicon rubber solid insulation; It has the characteristics of high and low temperature resistance, UV resistance, and aging resistance.

4. The operating mechanism adopts a miniaturized spring operating mechanism, with low power of the energy storage motor and low energy consumption for opening and closing; The mechanism transmission adopts the true motion transmission method, with a small number of components and high reliability. The operating mechanism is placed in a sealed mechanism box, which solves the problem of rusting of the operating mechanism and improves its reliability.

5. The opening and closing operations of the circuit breaker can be manually or electrically operated, as well as remotely controlled. It can be matched with intelligent controllers to achieve distribution automation, and can also be combined with coincidence controllers to form automatic reclosers and sectionalizers.

6. Circuit breakers can be equipped with two-phase or three-phase current transformers for overcurrent or short-circuit protection, and can also provide current acquisition signals to intelligent controllers; According to user requirements, measuring current transformers can be installed.

7. The circuit breaker can be equipped with a three-phase interlocking isolation switch, which has a visible fracture when the isolation switch is in the open state, and has an anti misoperation interlock device with the circuit breaker body. The circuit breaker can only be operated when the isolation switch is fully closed or fully opened. Can be connected to lightning arrester post insulators for easy maintenance.