可控消弧线圈增容改造在攀钢电网中的应用.pdfVIP

年第 期 冶 金 动 力 2015 10 总 第 188 期 METALLURGICAL POWER 7 可控消弧线圈增容改造在攀钢电网中的应用 黎 林 （攀钢集团攀枝花钢钒有限公司能源动力中心，四川攀枝花 617000） 【摘 要】随着配电网发展，攀钢新冶炼变电站 10 kV可控消弧线圈出现容量不足的问题，影响系统设备 运行安全。通过对现状深入分析，提出了以可控消弧线圈装置自动跟踪计算的电容电流为数据依据，并通过调 整配电网运行方式找到最大电容电流值和工程计算共同核算消弧线圈增加容量的方法。实际应用结果表明，该 方法简单、实用、有效。 【关键词】可控；消弧线圈；增容；电容电流 【中图分类号】TM864 【文献标识码】B 【文章编号】1006-6764(2015)10-0007-03 Application of Transformation of Controllable Arc Suppression Coil Capacity Increase in the Power Grid of PanSteel LI Lin (The Energy Power Center of Panzhihua Iron Steel Co., Panzhihua, Sichuan 617000, China) 【 】With the development of the power distribution network, the Xinyelian sub- Abstract station 10 kV controllable arc suppression coil of Pangang had the problem of insufficient ca- pacity, which influenced the operation safety of system equipment. Through in-depth analysis of the present situation, it was put forward that taking the capacitance current automatically tracked and calculated by the controllable arc suppression coil device as the data basis and by adjusting the power grid operation mode to find the maximum capacitor current and the method for engineering calculation of common accounting arc suppression coil capacity in- crease. Practicalapplication resultshaveshown that the method is simple, practical and effec- tive. 【 】controllable; arcsuppression coil;capacityincrease; capacitivecurrent Keywords 1 引言 此要考虑 10 kV消弧系统的增容改造。 攀钢 10 kV、6 kV配电网为小电流接地系统， 2 新冶炼10kV系统现状 采用中性点不接地或经消弧线圈接地方式。攀钢新 新冶炼变