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招远供电开展夏季变电设备特巡

2017-08-26 08:25:59   中国青年网

□陈宇斐 左丰岐

“110kv招里线1121-2刀闸接头A相30.5度,B相31.0度,C相30.8度,三相温度正常。”8月14日21时许,国网招远市供电公司运维人员运用红外成像仪对设备进行检测。针对近期高温多雨天气频发的实际,招远供电公司连续组织多批次设备特巡、夜巡专项活动,准确掌握高温大负荷下设备运行工况,积极应对高温、高湿,保障迎峰度汛期间电网可靠供电。

特巡之前,该公司制定了详细的计划和防范措施,对人员进行合理分工,并通过准备会的形式重点对巡视过程中的注意事项和危险因素进行了详细的危险辨识和交底。巡视过程中,运维人员严格落实“三查三强化”“迎峰度夏”部署,对招远市供电公司管辖的26座变电站进行了全面检查,一是检查电缆沟封堵情况及相通的污水井。采用专用密封胶对部分电缆沟的水泥密封条进行封堵,抽空所有污水井尤其是污水井连接到站外河道的,做到有备无患。二是检查室外端子箱封闭情况。包括端子箱门密封条是否完整好用,箱体内部是否有水渍等,发现问题及时解决。三是检查高压室的空调是否正确使用。为了解决汛期高压室内部潮湿导致设备放电的问题,大部分存在隐患的高压室已安装了空调。通过检查,现场纠正了两起未将空调功能设置为“除湿”的不规范行为。四是检查低洼易涝区、地质灾害多发区输电线路的杆塔基础、拉线、巡线道等,防止设备淹泡和倒杆发生。五是检查防汛物资是否齐备,及时补足部分变电站的沙袋,维修损坏的潜水泵,确保定点存放、专人保管、定期检查、随时投入使用。

夜巡主要对主变、套管接头、刀闸动静触头、各种设备连接处等容易发热的部位进行了红外成像测温;对微机保护装置、测控装置、UPS装置、远动装置、计量和指示仪表、电压互感器二次电压等一一进行检查;利用熄灯的黑暗条件通过“听声音、看弧光、量温度、记状况”的方式对开关柜、电缆夹层、电缆沟等部位进行全方位“诊断”,确保巡视工作不留死角。

此次变电站全面排查治理,共查出整治各项问题十余处,有效消除了影响变电站汛期安全的隐患,为电网迎峰度汛筑牢了屏障。

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