天津冷却塔维修 天津冷却塔维修常见故障如何处理-电工社区

 澳门皇冠足彩     |      2019-11-18

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        辐射入水的BOD5转变随水量而同,跟着吸取辐射剂质的添加,六圩污水处理厂,含有较难氧化无机物的废水值会淘汰,离心机维修,而露无易氧化无机物的废水的大概会增长。



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        驱动电路不能输出正常的驱动脉冲,多为电流输出能力不足。一是驱动IC的后置放大器低效,元件变值等。二是驱动供电不良;不能达到足够的电压幅值和输出足够的驱动电流,使IGBT不能被良好开通或处于导通与截止的临界点上,IGBT管压降检测电路检测到大于7V的管压降信号而报出OC故障。驱动供电电源电压的低落为驱动IC内部欠电压电路所侦测,驱动IC报出OC故障。