Project_PrincipleOverview_G_YunNan_2025/ModeDisplay/Assets/StreamingAssets/SubTitles/原理/220kV断路器-机械特性.srt

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220千伏LW25断路器采用三相分体单端口结构

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每个产品由三个单极结构

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操作简单

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可单极操作

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也可三极一起操作

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便于安装和操作

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是变电站

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发电厂 以及输电线路理想的高压设备

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其具有优异的热稳定性和机械耐久性

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能够在恶劣的工作环境中长时间稳定运行

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断路器储能

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通过储能电机旋转

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电机齿轮联动两个棘爪交替偏心运动

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联动拉动滚轮

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带动竖轴向上运动

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带动合闸弹簧压缩变短从而储能

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合闸弹簧系统独立

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操作稳定

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合闸操作时

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电磁铁吸合

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铁芯向上运动

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带动闸锁旋转

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从而释放滚轮

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合闸弹簧在储存的能量下变长

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滚轮开始运动

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同时轴凸轮撞击连杆逆时针运动

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使杆向下运动

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同时拉动分闸储能杆向上运动对分闸弹簧进行储能

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带动拐臂顺时针旋转

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拉杆向前运动

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带动拐臂顺时针旋转拉动触头杆向上运动

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插入静触头完成合闸

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分闸

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分闸电磁铁得电并吸合

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铁芯向上运动

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推动分闸掣子

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压到触发联动杆

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触发联动杆撞击锁死机构

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使主轴顺时针旋转

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释放对主轴的束缚

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联动机构输出拐臂顺时针旋转

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推动竖轴向下运动

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分闸弹簧释放能量变长

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轴向上运动

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拉动拐臂逆时针旋转

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拉杆向后运动

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拉动拐臂逆时针旋转

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使动触头杆向下运动脱离静触点完成分闸

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此断路器可安全通过5000次不间断的机械寿命试验

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操作可靠性高

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无漏油、漏气风险

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且断路器本体与操作机构采用直接连接

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使得它体积小、重量轻

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高可靠的弹簧操动机构

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使结构简单清晰

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产品运行维护工作量很少

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只需定期查看六氟化硫气体表压和涂抹润滑脂即可