安全辅助型直流蓄电池熔断器拆装工具在变电站的研制与应用

Development and Application of Safety-assisted DC Battery Fuse Disassembly Tool in Transformer Substation

变电站的低压直流系统是站内重要的电源设备,通常配备两套直流蓄电池组,当变电站全站失压或充电机突发故障时,蓄电池将作为重要的应急电源,为站内关键设备供电。开展直流蓄电池核对性充放电试验或更换蓄电池都会涉及蓄电池组熔断器的装、拆操作,普遍存在的问题是熔断器与其底座之间卡涩及屏柜内空间狭小且其余部分带电等,实际操作较困难,且存在操作不善导致人员触电和设备短路的风险。为此,研制一种安全辅助型直流蓄电池熔断器专用拆装工具,以提高直流蓄电池熔断器拆装操作效率和安全可靠性。

The low-voltage DC system of the substation is an important power supply equipment in the station.Usually,two sets of DC batteries are equipped.When the whole substation loses voltage or the charger fails suddenly,the battery will be used as an important emergency power supply to supply power for the key equipment in the station.The checking charge and discharge test of DC storage battery or the replacement of storage battery will involve the installation and disassembly of the fuse of the storage battery.The common problems are the jam between the fuse and its base,the narrow space in the cabinet and the electrification of the rest.The actual operation is difficult,and there is the risk of personnel electric shock and equipment short circuit caused by improper operation.Therefore,a special disassembly tool for safety auxiliary DC battery fuse is developed to improve the disassembly efficiency and safety reliability of DC battery fuse.