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旧有客车配电盘使用铜质闸刀开关,技术落后,容易丢失,维修工作量大。现研制的新型客车配电箱(XPD),采用单极自动空气开关取代铜质闸刀开关,增加了绝缘检测装置。该配电箱体积小、重量轻、外形美观,在电气线路过载或短路情况下能自动断开电路,并可随时查验电气线路的绝缘情况。该装置使用寿命长,操作简单,安装方便,能减轻维修劳动强度。经装车试用,性能良好,达到设计要求。
Old bus switchboard using copper knife switch, backward technology, easy to lose, maintenance workload. Now developed a new passenger car distribution box (XPD), the use of unipolar automatic air switch instead of copper knife switch, an increase of insulation testing device. The distribution box small size, light weight, beautiful appearance, the electrical circuit overload or short circuit can automatically disconnect the circuit, and can always check the electrical insulation of the circuit. The device has long service life, simple operation and convenient installation, which can reduce labor intensity of maintenance. The loading trial, good performance, to meet the design requirements.