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我工程处在富强矿三采区施工时,因涌水量较大,在建井中期新形成的排水系统中,使用了60A8×9型水泵,其配用电机为JD335L-4型,功率200kw、电压660V、电流210A。由于工期紧张,处内没有起动设备,我们便采用2台QC83-225型磁力起动器并联起动,一次试验运转成功。经过一年多的实用,效果甚好。其原理接线如附图示,即将一台开关的接触器线圈XLC引出与另一台开关的XLC线圈并联,其余控制部分均甩掉不用。这样,只要操作一台开
In the construction of the third mining area of Fuqiang Mine, due to large amount of water inflow, our engineering department used a 60A8 × 9 type of water pump in the newly formed drainage system in the middle stage of well construction. The auxiliary motor used was JD335L-4 with a power of 200kW, Voltage 660V, current 210A. Due to the tight schedule, there is no starting equipment in the department, we use two sets of QC83-225 magnetic starter in parallel, a test run successfully. After more than a year of practical, the effect is very good. The principle of wiring as shown in the figure, about a switch contactor coil XLC leads to another switch in parallel with the XLC coil, the remaining part of the control are thrown away. In this way, as long as the operation of an open