鲍店矿井的北风井是由主井工业广场35kV变电所经过长约4km两回路6kV输电线路供电。在矿井建设期间,特别是在永久35kV变电所未投入运行之前,经常因为电压波动超限而影响大型电气设备运转。该井地面630kW提升绞车受电压的影响最为突出。如果采取35kV变电所调整主变电压切换接点,这种调压方法一是影响面大,二是操作麻烦,北风井只是其用户之一,经常要求35kV变电所调压不是每次都能如意。所以我们首先在该井的提升绞车进线电源上试用了串联加压式的带负荷调压装置,经过近三年运行,反映良好,基 The breeze shaft of Baodian Mine is powered by 35kV substation of Main Well Industrial Plaza and 6kV transmission line with two loops of about 4km. During the construction of the mine, especially before the permanent 35kV substation is put into operation, the operation of large electrical equipment is often affected because of the voltage fluctuation overrun. The well ground 630kW winch by the voltage of the most prominent. If the 35kV substation to adjust the main transformer voltage switching contacts, the first one is the impact of pressure regulating large area, and second, the operation is troublesome, Beifeng wells is only one of its users often require substation 35kV substation not every time Can wishful. Therefore, we first tried the series pressurization load-carrying voltage regulator on the hoist winch power supply of the well, and after nearly three years of operation, it reflected a good base