谈高压输电线路无功功率的几个问题

高压输电线路在输送负荷功率的同时自身也消耗有功功率、吸收或输出无功功率，线路无功会时功率因数产生很大影响。针时输电线路无功功率吸收或输出的界限、线路无功时功率因数的影响和改进措施进行了讨论，最后分析了现场应用线路客性无功时二次接线进行向量检查的优点。

Study of Reactive Power of High-voltage Transmission Line

While transmitting the load power, the high-voltage transmission line consumes the active power of its own, and absorbs or outputs the reactive power, which affects the power factor significantly. This paper discusses the limit of absorbed or outputted reactive power, the effect of the reactive power of the line on the power factor, and the countermeasures for improvement, and analyzes the advantages of using the line's capacitive reactive power to check the secondary wiring vector in the field.