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近年来,很多依靠电力提水的井灌区,由于电压过降,不能正常供电,因而影响了电井的运行。究其原因,除了区内电力网中生产和生活用电量迅速增加,原来的设备容量、供电范围、导线截面均不能满足要求外,在提水设备的用电上也存在着很多问题: 1.不顾变压器容量大小,在配电线路中接入过多的电动机或拉的线路过长。如有的井离变压器过远,有的线路交叉迂回供电,有的导线截面选择不合理等等,过大的电流通过细长的导线,产生较大的电
In recent years, many well-irrigated areas that rely on electric power to lift water can not operate normally due to the voltage drop, thus affecting the operation of electric wells. The reason is that in addition to the rapid increase in electricity consumption in production and living in the power grid in the region, the original equipment capacity, power supply range and wire cross-section can not meet the requirements, there are still many problems in the electricity consumption of water lifting equipment: In spite of the size of the transformer, too many motors are plugged into the distribution line or the pull line is too long. If the well is too far away from the transformer, some circuit cross circuitous power supply, and some cross-section wire selection is not reasonable, etc., excessive current through the elongated wire, resulting in a larger electricity