当前，在发电厂、住宅楼的低压配电工作环境下，普遍使用抽屉式低压开关柜，特别是MNS抽屉式低压开关柜得到了广泛应用。虽然业内生产MNS低压抽屉柜的厂家很多，但技术和质量参差不齐，抽屉式开关柜的设计和组装存在隐患，下面简单说一下MNS低压抽屉柜的其他故障原因分析。

Currently, in the low-voltage distribution working environment of power plants and residential buildings, drawer type low-voltage switchgear is widely used, especially MNS drawer type low-voltage switchgear has been widely used. Although there are many manufacturers in the industry that produce MNS low-voltage drawer cabinets, their technology and quality are uneven, and there are safety hazards in the design and assembly of drawer type switchgear. Below is a brief analysis of other fault causes of MNS low-voltage drawer cabinets.

在使用中，机柜内的温度太高，高负荷运行，导体长时间流动，机柜缺乏维护，导致积灰严重，整体散热差，无，配电室无空调制冷设施，开关本体和导线高温运行，导致整体性能下降，使用寿命缩短，以及设备和线路的老化等都会使低压柜产生故障。如配电室从正式投入运行今，已经连续运行了十几年，因运行条件不符合停电检查条件而长期连续运行，核心部件没有及时维护、测试更换、线路老化、使用寿命降低， 抽屉柜内进出线的导线应为普通低压电缆或包绝缘热缩管的铜排，并按相关标准安装，配电室应确保设备监控系统开启，以便访问和检查设备的运行状态。

In use, the temperature inside the cabinet is too high, high load operation, prolonged conductor flow, lack of maintenance in the cabinet, resulting in severe dust accumulation, poor overall heat dissipation, lack of dehumidification, lack of air conditioning and refrigeration facilities in the distribution room, high temperature operation of the switch body and wires, resulting in overall performance degradation, shortened service life, and aging of equipment and circuits, all of which can cause faults in the low-voltage cabinet. Since its official operation, the distribution room has been in continuous operation for more than ten years. Due to operating conditions that do not meet the power outage inspection conditions, the core components have not been maintained, tested and replaced in a timely manner, the circuit has aged, and the service life has decreased. The wires for the incoming and outgoing lines in the drawer cabinet should be ordinary low-voltage cables or copper bars wrapped with insulated heat shrink tubes, and installed according to relevant national standards. The distribution room should ensure that the equipment monitoring system is turned on, In order to access and check the operational status of the device.

统计分析历史数据，对标实际运行数据，及时发现异常，隐患，同时，配电室应加强送排风系统的管理，送排风的功率和效率应满足正常运行的要求，应定期检查配电室运行的低压柜的质量，尤其是内部开关、铜线、接插件，必要时更换核心部件。配电室承载的负荷应分类并逐一标记，对非常重要和重要的负荷应增加必要的保护装置，并制定和实施有针对性的运行和检查计划，组织运行维护人员和配电室管理人员定期检查。有效的技能培训，如配电室运维知识、应急处理、防护等，并定期进行应急演练和实战考核，提高人员处置突发事件的技能和能力。

Statistical analysis of historical data, benchmarking of actual operating data, timely detection of anomalies, elimination of hidden dangers, and strengthening of the management of the supply and exhaust system in the distribution room. The power and efficiency of the supply and exhaust system should meet the requirements of normal operation. The quality of the low-voltage cabinets in the distribution room should be regularly checked, especially internal switches, copper wires, and connectors, and core components should be replaced if necessary. The loads carried by the distribution room should be classified and marked one by one. Necessary protective devices should be added for very important and important loads, and targeted operation and inspection plans should be developed and implemented. Regular inspections should be organized by operation and maintenance personnel and distribution room management personnel. Effective skill training, such as knowledge of power distribution room operation and maintenance, emergency response, safety protection, etc., and regular emergency drills and practical assessments are conducted to comprehensively improve personnel's skills and abilities in handling emergencies.

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Thank you for reading. The source of this article is Jinan MNS low-voltage drawer cabinet. For more information and questions, please click: //www.aqfitlab.com We will continue to work hard to provide you with services. Thank you for your support!