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Modular Operation Mechanism 模
块化操作机构
VB is equipped with modular operation mechanism, which is standard
and easy for maintenance. The main shaft is driven by cam of
mechanism directly which reduces more processes and saves the
energy. The mechanism is with changing lever thus no need to order it
separately. Another feature of the operating mechanism of VB
embedded pole vacuum circuit breaker is that the total number of parts
of the mechanism is reduced compared with the traditionally designed
mechanism, so that the reliability of the mechanism is enhanced
significantly.
VB 系列断路器配有标准的、易于维护的模块化操作机构,主轴通过机构上的凸轮直接驱动,减少了传动环节,降低了能量。机构
配备有储能手柄,不需要单独的储能操作工具。比较传统的断路器,VB 断路器的操作机构零件数量显著减少,因此机构的可靠性
明显提高。
The opening damper of the mechanism plays a very important role to ensure reliable performance and high mechanical
endurance of VB embedded pole vacuum circuit breaker. By adoption of the opening damper, the over travel and re-bounce of
moving contacts of vacuum interrupters during the opening of this VCB is reduced to a minimum. The lower over travel of the
moving contacts means lower mechanical stress to the bellow of the vacuum interrupter, so the designed mechanical endurance
of the vacuum interrupter is guaranteed. The lower re-bounce of the contact ensures low arc re-striking probability during the
breaking of capacitive current , so the occurrence rate of operating overvoltage is reduced. By the contribution of the opening
damper, VB has successfully passed type tested as Class C2 breaker in accordance with IEC standards.
机构的分闸缓冲器在确保 VB 固封极柱真空断路器的性能可靠性和机构的高机械寿命中起到非常重要的角色,通过使用分闸缓冲
器,真空灭弧室动触头的超程和反弹降低到最小。动触头的行程越小,意味着对真空灭弧室的波纹管的机械应力就越小,因此可以
保证真空灭弧室的设计机械寿命。 触头的低反弹性确保了在电容性电流断开期间的低电弧重击几率,因此降低了操作过电压的发
生率。 通过分闸缓冲的贡献,VB 已成功通过了根据 GB、IEC 标准的 C2 级断路器的型式测试。
The State of the Art Process and Advanced Quality Control
最新工艺和先进的质量控制
The high quality of the embedded pole is achieved by using the latest APG (Auto Pressure Gelatin) technology and advanced
vacuum mixing and degassing technology that are carried out by the equipment. The Vogel clamping machine is an essential
piece of equipment to ensure the mechanical and insulating strength of the embedded pole of VB series MV embedded pole
vacuum circuit breaker.
通过最新的 APG 技术和先进真空混合、脱气技术设备生产,可以实现固封极柱的高质量。 Vogel 夹紧机是确保 VB 系列中压固封
式真空断路器的固封极柱的机械强度和绝缘强度必不可少的设备。
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