变电站无功补偿分析

阐述了无功补偿对电力系统稳定、经济运行的作用。无功功率不足，会使系统电压及功率因数降低，从而损坏用电设备；严重时，会使电压崩溃，系统瓦解，造成大面积停电的问题。介绍了无功功率消耗设备和补偿设备，指出了要尽量避免发电机降低功率因数运行，同时也防止向远方负载输送无功引起电压和功率损耗；探讨了电压调整和无功补偿的途径。

Analysis on the Reactive Power Compensation of Substation

The effect of reactive power compensation on the stable and economical operation of electric power system is explained in this essay. Reactive power insufficiency will lead to the decrease in the system voltage and power factor, thus, the electrical equipment will be damaged, and even the voltage will collapse which will result in large area blackout. The reactive power expendable equipment and compensation equipment are also introduced here. In this essay, it also points out that the generatorg operating in low power factor should be avoided, and voltage loss andpower loss in long distance load and transportation of reactive power should be prevented as well. Ways of voltage regulation and reactive power compensation are discussed.