特高压变电站低压侧无功补偿装置

文章介绍了特高压变电站低压倒无功补偿装置工程设计的主要技术原则、装置的主要特点、电容器和电抗器主要参数的确定。经过分析比较,确定并联电容器装置和并联电抗器装置的电压等级为110 kV,容量为210 Mvar;并对无功补偿装置的接线方式、故障保护、成套装置的结构和配置等相关问题进行了介绍和分析,对其中的一些技术问题作出了说明,比如,电抗率的取值为特定条件下的取值,不能作为示范值,单台电容器的额定电压和额定容量不作统一规定等。

Reactive Power Compensation Equipment at Low Voltage Side in UHV Substation

The paper introduced major technical principles,the major characteristics,and the determination of major parameters of capacitor and reactor for engineering design of reactive power compensation equipment at low voltage side in UHV substation.Through the analysis and comparison,the voltage grade of 110 kV and the capacity of 210 Mvar for shunt capacitor and shunt reactor were determined.And the related aspects of wiring mode,fault protection and the structure for reactive power compensation equipment were introduced and analyzed,in which some technical problems were explained,for example,the value of reactance rate is under the specific condition,the rated capacity and the rated voltage for single capacitor can not be unified.