35/10kV变电站无功补偿装置改造

35/10kV Substation Reactive Power Compensation Device Transformation

北翼风井35/10kV变电站是长沟煤矿的主要变电站之一,对供电质量要求较高。为了满足北翼风井井下的机电设备用电要求,提高供电质量,决定对该变电站进行无功补偿技术改造。在10 kV母线上安装2套静止型动态无功补偿装置(SVG+FC);选用两台消弧线圈补偿10 kV系统单相接地电容电流。改造后可达到改善功率因数、抑制电压波动、降低网损的效果。对变电站进行无功补偿装置改造进行了阐述。

The north wing wind well 35/10kV substation is one of the main substations of Changgou coal mine, which has high demand for power supply quality. In order to meet the electricity demand of the electromechanieal equipment in the borehole of the north wing, the power supply quality is improved, and the reactive power compensation technology is changed. Two sets of static dynamic reactive power compensation devices （SVG ＋ FC） are installed on the 10kV bus. The single-phase earth capacitance current of 10kV system is compensated by two anti-arc coil. After modification, it can achieve the effect of improving power factor, suppressing voltage fluctuation and reducing net loss. In this paper, the transformation of reactive power compensation device for substation is described.