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在中小型排灌泵站中,水泵比较普遍地采用低压鼠笼式异步电动机拖动,电动机容量一般为14～300千瓦,且多采用XJ01系列自耦减压起动器进行起动控制(接线原理见图a)。为了消除电气设备运行时的噪音,节约电能,降低线圈温升,提高功率因数,我们将XJ01系列起动器由原来全部交流控制改进为采用交流起动,直流切换和直流保持的工作方式,经过运行试验,获得了良好
In small and medium-sized irrigation and drainage pumping stations, pumps are commonly driven by low-voltage squirrel-cage asynchronous motors. The motor capacity is generally 14 to 300 kilowatts, and XJ01 series auto-coupling decompression starters are often used for starting control. a). In order to eliminate noise during operation of electrical equipment, save energy, reduce coil temperature rise, and increase power factor, we have improved the XJ01 series starter from all the original AC control to work mode using AC start, DC switching and DC retention, and running tests. Got good