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　　MNS 低压抽屉柜的智能化技术改造

　　Intelligent technology transformation of MNS low-voltage drawer cabinet

　　柜体设计与智能分析系统：为适应数字工厂、智能化工厂对电气控制系统的个性化要求，对 MNS 型低压抽屉式开关柜进行智能化技术改造。

　　Cabinet design and intelligent analysis system: In order to meet the personalized requirements of digital factories and intelligent factories for electrical control systems, the MNS low-voltage drawer type switchgear has undergone intelligent technological transformation.

　　从开关柜柜体设计、传感器安装、控制系统原理等方面，结合系统原理设置智能分析系统，实现了开关柜可靠性、智能化升级。

　　From the aspects of switchgear cabinet design, sensor installation, control system principles, etc., combined with expert system principles, an intelligent analysis system has been set up to achieve the reliability and intelligence upgrade of switchgear.

　　传感控制技术优势：基于智能工厂的特性需求，分析总结了数种传感控制技术的优势。

　　Advantages of sensing control technology: Based on the characteristics and requirements of smart factories, several advantages of sensing control technologies have been analyzed and summarized.

　　在实例应用中，所提设计方案与传统电控开关柜相比，其在巡检周期、意外停机次数和年度人工成本方面的效益显着。

　　In practical applications, the proposed design scheme shows significant benefits in terms of inspection cycle, number of unexpected shutdowns, and annual labor costs compared to traditional electronic control switchgear.

　　改进巡检和维修方式：相关设计方案改进了传统开关柜的巡检、维修方式，对类似产物智能技术升级方面可起到一定的指导作用。

　　Improving inspection and maintenance methods: The relevant design scheme has improved the inspection and maintenance methods of traditional switchgear, which can provide guidance for the intelligent technology upgrade of similar products.

　　二、MNS 低压抽屉柜的特点与应用

　　2、 Characteristics and Applications of MNS Low Voltage Drawer Cabinet

　　结构与连接方式：MNS 型低压抽屉式开关柜通常包含多个抽屉层，由尘板分隔。每个抽屉层有两个隔离的抽屉式功能单元，每个功能单元包括抽屉体、导轨和推进机构。

　　Structure and connection method: MNS type low-voltage drawer type switchgear usually includes multiple drawer layers separated by dust plates. Each drawer layer has two isolated drawer style functional units, each of which includes a drawer body, guide rails, and push mechanism.

　　导轨固定在尘板上，抽屉体与导轨配合。推进机构位于抽屉体下部，包括带有弧形开口导槽的转盘、上部带有夹紧帽的枢轴、推杆、拉杆和安装在尘板上的导向件。

　　The guide rail is fixed on the dust board, and the drawer body is matched with the guide rail. The propulsion mechanism is located at the lower part of the drawer body, including a turntable with an arc-shaped opening guide groove, a pivot with a clamping cap on the upper part, a push rod, a pull rod, and a guide installed on the dust plate.

　　独立的单元电路：在这种低压开关柜中，采用了更多的抽屉式功能单元，但体积并未增加。单元电路相互独立，互不干扰，每个功能单元电路的断开位置、试验位置和接通位置之间的切换可以独立完成。

　　Independent unit circuit: In this low-voltage switchgear, more drawer style functional units are used, but the volume has not increased. The unit circuits are independent of each other and do not interfere with each other. The switching between the disconnection position, test position, and connection position of each functional unit circuit can be independently completed.

　　三、MNS 低压抽屉柜的事故分析与防范措施

　　3、 Accident analysis and preventive measures of MNS low-voltage drawer cabinet

　　母排三相短路事故：以某厂 MNS 型抽屉式低压柜在试运行阶段发生母排三相短路事故为例，对事故原因进行分析与排查，终确定为母排三相弧光短路造成放电。进而提出相应的处理方案和防范措施，以保证电力系统的稳定运行，并为以后类似事故提供借鉴与指导。

　　Bus three-phase short circuit accident: Taking the MNS drawer type low voltage cabinet in a certain factory as an example during the trial operation stage, the cause of the accident was analyzed and investigated, and it was finally determined that the discharge was caused by the bus three-phase arc short circuit. Furthermore, corresponding handling plans and preventive measures are proposed to ensure the safe and stable operation of the power system, and to provide reference and guidance for similar accidents in the future.

　　四、MNS 低压抽屉柜的解决方案与未来展望

　　4、 Solution and Future Prospects of MNS Low Voltage Drawer Cabinet

　　智能监控系统的设计研究：基于系统的 MNS 型低压抽屉式开关柜智能监控系统的设计研究，从多个方面实现了开关柜的智能化升级，为实现智能工厂打造重要一环。

　　Design and research of intelligent monitoring system: Based on expert system, the design and research of MNS low-voltage drawer type switchgear intelligent monitoring system have achieved the intelligent upgrade of switchgear from multiple aspects, which is an important part of building an intelligent factory.

　　工业以太网集成方案：从介绍智能生产出发，简要分析 MNS DIGITAL 低压开关柜解决方案及其应用，并展望工业以太网光明的应用未来。

　　Industrial Ethernet Integration Solution: Starting from the introduction of intelligent production, this article briefly analyzes the MNS DIGITAL low-voltage switchgear solution and its application, and looks forward to the bright future of industrial Ethernet applications.

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