矿井供电电源可靠性分析及变压器选择

Reliability Analysis on Power Supply and Transformer Selection for Coal Mines

对永宁煤矿矿井供电电源可靠性进行了分析,得出结论:该矿供电能力有较大富余,电源可靠,供电质量有保证。由于兼并重组后生产能力提高,用电设备增多,原有变压器已不能满足供电需要。因此新选两台SZ_(11)-10000/35 35/10.5kV 10000kVA变压器,室外布置,一用一备。

By the reliability analysis on power suppl y in Yongning Mine, the conclusions are as follows：due to large surplus of the power supply capacity of the mine, the power is reliable and the quality of supply could be guaranteed. But because of increased production capacity after annexation and reorganization, powered devices increased too and original transformer no longer met the supply demand. Therefore, two transformers （SZ11-10000/35 35/10.5kV 10000kVA） were selected and mounted on the outside, one for use and one for standby.