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This product is an indoor high-voltage side-mounted vacuum circuit breaker with a spring-energy-storage operating mechanism, available in both manual-charging and motor-charging forms. Its performance complies with the requirements of the national standard 'AC High-Voltage Circuit Breakers' and related industry technical conditions, suitable for 24kV three-phase AC power systems.
Features:
The spring operating mechanism stores energy reliably with fast and flexible action; the dual charging modes can meet usage requirements under different on-site power-supply conditions; the side-mounted installation structure is compact, easy to arrange within switchgear, offers good operating stability, and is simple to maintain.
Applications:
Widely used in substations, industrial/mining enterprises, and various distribution systems, undertaking the control and protection of load current and short-circuit current switching, suitable for medium-voltage distribution applications with higher requirements for breaking performance and reliability.
| Item | Unit | Parameter | |
| Contact gap | mm | 13±1 | |
| Overtravel | mm | 3±0.5 | |
| Phase-to-phase center distance | mm | 210±1 | |
| Contact closing bouncing time | ms | ≤ 2 | |
| Three-phase opening and closing asynchronism | ms | ≤ 2 | |
| Opening time | ms | ≤ 50 | |
| Closing time | ms | ≤ 100 | |
| Average opening speed (over the first 6mm after contact separation) | m/s | 0.9~1.3 | |
| Average closing speed (over the last 6mm before contact closure) | m/s | 0.4~0.8 | |
| Closing contact contact force | N | 25kV | 31.5kV |
| 2200±200 | 3200±200 | ||
Zhejiang Yingchuang Electric Co., Ltd. was established in March 2018 and is a qualified approved supplier for State Grid and China Southern Power Grid. We specialize in the R&D and manufacturing of high-voltage electrical equipment, including primary-and-secondary integrated pole-mounted circuit breakers, indoor/outdoor vacuum circuit breakers, disconnecting switches, ring main units, and complete switchgear assemblies. Guided by "craftsmanship quality and sincere service," we offer full OEM/ODM customization across our entire product range. In 2024, we were recognized as a Provincial Innovative SME and a National High-Tech Enterprise.
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1948056561@qq.com
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Building 5, No. 88, Zhandong Road, Dianhou Industrial Zone, Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, China
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