描述
怎样对变压器进行特殊巡视?
当系统发生短路故障或天气突变时,值班人员应对变压器及其附属设备进行特殊巡视。下雪天气,应检查变压器引线接头部分有无落雪立即融化或蒸发冒气现象,导电部分有无积雪、冰柱。气温骤变时,应检查变压器的油位和油温是否正常,伸缩节导线和接头有无变形或发热现象。雷雨天气,应检查瓷套管有无放电闪络现象(大雾天气也应进行此项检查),以及避雷器放电记录器的动作情况。大风天气,应检查引线摆动情况和是否搭挂杂物。
当系统发生短路故障时,应立即检查变压器系统有无爆裂、断脱、移位、变形、焦味、烧损、闪络、烟火和喷油等现象。下雪天气,应检查变压器引线接头部分有无落雪立即融化或蒸发冒气现象,导电部分有无积雪、冰柱。
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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