VSP5-12 imported Toshiba technology and was fully localized. Subsequently, it underwent capacity expansion design, surpassing Japanese technology, and expanded the open-close short-circuit breaking current to 20kA. It uses vacuum arc extinguishing and SF6 gas insulation. There is also an isolation gap connected in series with the vacuum arc extinguishing chamber inside the switch, ensuring better arc extinguishing and withstand voltage performance. The mechanism ensures the action sequence between the isolation gap and the arc extinguishing chamber: the vacuum arc extinguishing chamber disconnects first, followed by the isolation gap. The isolation gap disconnects first, followed by the arc extinguishing chamber.
High safety: Both arc extinguishing and insulation media are oil-free. An explosion-proof device is installed at the top of the box, ensuring that even in the event of an internal fault, there will be no leakage of high-temperature gas or splashing of particles exceeding 10mm. Maintenance-free: The main circuit and operating mechanism of the switch are sealed in the SF6 gas-filled box, unaffected by environmental conditions, making it maintenance-free. The main circuit of the switch can be led out using cables or our patented corner tubing.
Can be operated electrically or manually for more flexible operation. Its electromagnetic operating mechanism has features such as automatic closing on power restoration and automatic delayed opening on power loss, with a simple and reliable structure. Flexible installation: It can be installed overhead or on a pedestal. Automation distribution interface: Can be equipped with various ratios of current transformers for measurement, protection, and metering, with remote control interfaces.
High reliability: The product incorporates over 30 years of Toshiba’s vacuum equipment technology and practice, supported by our comprehensive quality management system, ensuring high reliability.
Sf6 gas inflation pressure is at zero gauge pressure, preventing leaks. Reliable sealing technology ensures that the gas inside the switch can work normally for 20 years (based on Japanese operational experience).
Ambient condition
Altitude: ≤1000m;
Ambient Air Temperature: Upper Limit +40°C, Lower Limit -35°C; Dai l y temperature variation not exceeding 25°C;
Wind Pressure: ≤700Pa (equivalent to wind speed of 34m/s);
Installation Site: Should be free from fire, explosion hazards, severe pollution, chemical corrosion, and intense vibration.
