ZN85-40.5 Indoor HV Vacuum Circuit breaker
ZN85-40.5 indoor HV vacuum circuit breaker is an indoor three-phase AC device of 50Hz and rated voltage 450kV, with the special 3AV3 spring mechanism, the circuit breaker may be mounted in JYN1-40(Z) movable metal-enclosed switchgear or KYN61-40.5(Z)assembled metal-enclosed switchgear, it is the ideal circuit breaker in
40.5kV device. This series of product is featured with high technical parameters, strong breakingcapacity, reliable operation, stable performance, long service life, simple maintenance.no explosion or pollution, it is used for protecting and controlling the electrical facilitiesof single-bus system in the industrial and mining enterprise, power plant, transformersubstation, etc, it is also suitable for the location that needs switching the capacitorbank or performing the frequent operation.
Adopting the integrated and modular design, the circuit breaker is designed into the superstructure and infrastructure, with the reasonable configuration, the arc-extinguishing chamber is on the top, and the interlocking mechanism and operating mechanism are positioned at below. lt employs 3AV3 spring operating mechanism, can run reliably without adjustment. The vacuum arc-extinguishing chamber is laid in the closed insulation barrel, so as to improve the insulation performance and shorten the entire size.
Specification Parameter
Ambient temp:-10℃(-25℃℃in high and cold area )~+40 ℃
Altitude:1000m.
Relative humidity: daily average value is not more than 95%, and the monthlyaverage is not more than 90% at +25℃.
The saturated vapor pressure: daily average value is not more than 2.2 10-3MPaand the monthly average value is not more than 1.8 10-3MPa.Earthquake intensity: not exceed M8.0
Not applicable for the location with fire, explosion, chemical corrosion or sharpshock.
Product Advantage
1. Maintenance-free operation: Requires minimal upkeep, ensuring long-term reliability in various applications.
2. Modular design: Incorporates easy-to-disassemble components and replaceable electrical parts for simplified servicing and repairs.
3. High mechanical and electrical lifespan: Features a mechanical life of up to 30,000 operations (M2 class) and enhanced electrical durability (E2 class), suitable for frequent usage.
4. Excellent breaking performance: Capable of efficiently switching inductive and capacitive loads with strong current interruption capabilities.
5. Strong compatibility: Easily integrates with mainstream switchgear cabinets such as GBC-40.5, JYN1-40.5, XGN17-40.5, KYN61-40.5, and KYN10-40.5, offering interchangeability with similar domestic products.
6. Convenient operation: Utilizes a screw propulsion mechanism for smooth, lightweight movement within switchgear, enhancing user ease.
7. Superior insulation: Ensures reliable performance in harsh environments like high altitudes, condensation, or pollution due to advanced insulating materials and enclosed arc-extinguishing chambers.
8. High corrosion resistance: Employs specialized surface treatments and lubrication technologies to withstand corrosive conditions and improve overall robustness.
9. Safety assurance: Eliminates risks of explosion and environmental contamination, providing a secure solution for industrial settings.
Outline And Mounting Dimensions
