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型高压真空断路器
MVG-40.5 Type High Voltage Vacuum Circuit Breaker

MVG-40.5系列高压真空断路器技术特点
Technical Features of MVG-40.5 Series HV Vacuum Circuit Breaker

断路器结构采用整体型布局 主导电回路采用套筒式或固封式结构
弹簧操动机构与断路器本体部分采用一体化结构设计。一次主导电回路
MVG-40.5系列高压真空断路器的主导电回路有套筒式和固封式两种结构形
与机构采用上、下布局的形式，主导电回路部分位于机构上部，弹簧操动机
式可供用户根据不同的使用场所进行方便地选择。
构及手车推进机构位于断路器的下部，结构紧凑、布局合理。
套筒式结构：断路器的一次主导电回路的真空灭弧室布置在封闭的绝缘筒
Breaker adopts overall type layout structure 内，绝缘筒选用机电性能可靠的环氧树脂材料，并采用先进APG的工艺成型，该
The spring operating mechanism and the main part of the circuit breaker adopts the 绝缘筒既起安装支撑作用，又起相间、相对地绝缘作用。该绝缘筒的设计充分考
integrated design structure. Primary electrical circuit and mechanism adopts the up-down
layout. Primary electrical circuit section is located in the upper body. The spring operating 虑了国家标准及严酷工作条件的使用要求，不仅可以防止真空灭弧室不受外界环
mechanism and handcart -driving mechanism are in the lower part of the circuit breaker, all 境的影响，防止灰尘和异物进入主回路的部分，而且可以确保即使在湿热及严重
representing compact structure and reasonable layout.
污秽的环境下，也可以对电压效应呈现出高阻态。

较好的手车互换性和适应性 Primary electrical circuit adopts sleeve-type or solid sealing
structure
MVG-40.5系列高压真空断路器的外形尺寸与ZN85-40.5真空断路器完全一
致，可实现手车之间的方便互换，从而其适应性强、适用范围广。MVG-40.5断 Primary electrical circuit of MVG-40.5 series high-voltage vacuum circuit breaker adopts
both sleeve-type and solid sealing structure to facilitate the selection of users depending on
路器手车采用落地式结构设计，不用转运小车，可以方便用户进行现场的检修和 premises of usage.
定期维护，MVG-40.5系列真空断路器适配柜型为KYN61-40.5高压成套开关柜。 Sleeve-type structure. The vacuum interrupter of the Circuit Breaker's 1st primary electrical
circuit is located in a closed insulating cylinder, which is made of epoxy resin material
Better hand-cart interchangeability and adaptability with reliable mechanical and electrical performance and by using advanced APG molding
The external dimensions of MVG-40.5 series of high-voltage vacuum circuit breakers technology. The insulating cylinder can support the installation and have the effect of
are exactly the same as those of the ZN85-40.5 vacuum breakers. It enables easy hand- interphase and relative insulation. The design of the insulating cylinder takes full account
cart interchange, thereby strengthening the adaptability and enabling wider range of the national standards and the use requirements under harsh working conditions, for
of application. MVG40.5 circuit breaker adopts the floor-standing structure. With not only protecting the vacuum chamber from the impact of the external environment, but
no requirement of trolley transport in the design, users can easily conduct on-site also preventing dust and foreign matters from entering the main circuit section as well as
maintenance and regular maintenance. MVG-40.5 Series vacuum breaker uses KYN61- ensuring that there will be high impedance state against the voltage effect even in hot and
40.5 High Voltage Switchgear as its storage cabinet. humid environment with severe contaminations.

可靠的一体化弹簧操动机构
MVG-40.5系列高压真空断路器的弹簧操动机构为平面布置的弹簧操动机 固封式结构：断路器的一次导电回路采用固体绝缘技术的固封极柱，该固封极柱通过先进
构，具有手动储能和电动储能功能，操动机构置于灭弧室前的下侧，这种结构 的自动压力凝胶APG工艺将真空灭弧室和一次导电回路的其它零件直接固封在特种环氧树脂材料
设计，不仅可使整机外形尺寸小，而且可使操作机构的操作性能与灭弧室开合 里，形成一个主导电回路模块。固封极柱安装端进行了内外双裙边的设计，该极柱具有大爬电
所需性能更为吻合，减少了不必要的中间传动环节，降低了能耗和噪声，使其 比距、高机械强度、高零部件精度、零部件数量少、无需二次调整、搭接面少的特点。极柱电场
操作性能更为可靠。 分布均匀，避免了局部电场集中对有机绝缘的破坏。同时采用此种结构设计，可大大地简化一
次主导电回路的装配工艺，彻底避免了主导电回路连接螺栓由于运行中的振动而松动的问题，
MVG-40.5系列高压真空断路器的操动机构主传动结构为成熟的12kV
保证了主导电回路电联结的高可靠性，使断路器的一次主导电回路的实现免维护成为可能。
MVG系列操动机构的延伸，主传动的的可靠性有上万台的生产、运行经验，
断路器的整机动作稳定性、可靠性高。 Solid sealing structure: The 1st conductive loop of the circuit breaker uses solid seal pole with solid insulating
technology. The solid seal pole adopts advanced automatic pressure APG sectional glue processes to have other
Reliable integrated spring operating mechanism parts of the vacuum interrupter and 1st conductive loop directly enclosed in specialty bad epoxy resin material
The spring operating mechanism of the MVG-40.5 series high-voltage vacuum circuit in special epoxy resin materials to form a primary electrical circuit module. The mounting end of the solid seal
breaker is a spring operating mechanism with plane layout, which has both manual storage pole adopts double skirt design (inside and outside) and the seal pole has features such as long leakage
and electric energy storage functions and the operating mechanism, is placed under the distance, high mechanical strength, high precision parts, smaller number of parts, no secondary adjustment,
front side of the arc chamber. Such a design not only can reduce the overall size but also smaller overlapping surface and so on. The electric field of the pole is evenly distributed, which may avoid
make the performance of the operating mechanism more consistent with the desired destruction of the organic insulating by concentration of local electric field. At the same time such a structure
properties for the interrupter chamber. As a result, such design may reduce unnecessary design can greatly simplify the assembly process of the 1st primary electrical circuit, thereby completely
intermediate transmission links and reduce energy consumption and noise, making the avoiding loosening of the bolts connecting the primary electrical circuit due to operational vibration, which
operations more reliable. ensures the high reliability in the electrical coupling of the primary electrical circuit, making possible the
maintenance-free operation of the 1st primary electrical circuit breaker.
Main transmission structure of the operating mechanism in MVG-40.5 series of high-voltage
vacuum circuit breaker is the extension of the already matured 12kV MVG series operating
MVG- 40.5 mechanism. With production and operating experience through tens of thousands of units, MVG- 40.5
the operation of the circuit breaker is highly stable and reliable.

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