新型变电站电压无功自动控制装置的研制

根据变电站的运行特点，采用最先进的无功调节判据，研制了变电站电压无功自动控制装置，以实现变电站电压无功的优化控制。该装置能在电压合格、无功基本平衡时，使有载调压变压器的分接开关次数和并联补偿电容的投切次数降至最少，从而大大提高变压器有载分接开关的使用寿命并使变电站电压合格经达到100％，线损降低20％左右。

Development of New Substations Voltage and Reactive Power Automatic Control Equipment

According to substation running properties and using the most advanced reactive regulating criteria, a substation voltage and reactive power automatic control equipment for realizing optimization control is developed. At the balanced reactive power and the qualified voltage the equipment can ensure minimum operation times of transformer tap and parallely compensate the capacitor switch.The lifetime of transformer taps and capactitor switches increases largely, and substation voltage qualification rate is reached to 100%,as well as the line loss is reduced about 20%.