布尔台煤矿西南区开采供电电压等级选择

为保证布尔台煤矿西南区三、四、五盘区开采的电力负荷供应,从供电的可靠性、供电质量两个主要方面论述了新建变电站电压等级的选择。结合布尔台煤矿西南区周边电源条件及现有供电电源,对110 kV、35 kV电压等级供电在电压损失、电压偏差、经济输送功率、功率损耗、电能损耗等方面进行了对比分析。分析认为,将线路的电压损失控制在额定电压的5%以内,既能保证电能质量又能保证节能需要,符合相关规定且在条件允许时应优先采用高电压等级供电。

Selection of power supply voltage level in the southwest mining area of Buertai coal mine

In order to ensure the power load supply of the third,fourth and fifth mining areas in the southwest of Buertai coal mine,the selection of voltage level of new transformer substation was discussed from two main aspects of power supply reliability and power supply quality.Combined with the surrounding power conditions and the existing power supply in the southwestern area of Buertai coal mine,the voltage loss,voltage deviation,economic transmission power,power loss and energy loss of 110 kV and 35 kV voltage grade were compared and analyzed.The analysis shows that if the voltage loss of the line is controlled within 5%of the rated voltage,the power quality and energy saving requirements can be guaranteed,and the relevant regulations can be met,and the high voltage level power supply should be preferred when conditions permit.