10kV集合式并联电容器的选择与应用

Selection and Application of 10 kV Assembling Shunt Capacitor

介绍了新疆哈密地区巴里坤县110kV变电所安装的集合式并联电容器成套装置,对无功补偿容量的确定、集合式并联电容器及其配套设备型式的选择作了说明,以及运行过程中可能出现的涌流、过电压、电网谐波放大问题进行了分析,对变电站的无功补偿装置提出建议:按照变电站的无功补偿装置,仅补偿站内无功损耗的原则来确定变电站无功补偿容量;采用可调容集合式并联电容器配套的高压可调容智能综合控制器,该装置可根据变电站的功率因数和电压水平来调节有载调压变压器分接头和自动投切集合式并联电容器。

A complete set of assembling shunt capacitor installed in the 110 kV Substation, Balikun, Hami, Xinjiang is introduced in this paper. Reactive compensation capacity is determined, type and accessories selections of assembling shunt capacitor are indicated, inrush current, overvoltage, and harmonic amplification, that may arise during operation, are analyzed, the following suggestions for reactive compensation devices put forward： reactive compensation capacity is determined by station reaction loss principle in according to the reactive compensation devices in substation, the high pressure adjustable capacity intelligent integrated controller that goes with the adjustable capacity assembling shunt capacitor should be adopted, this controller can adjust the on-load tap changer and automatic switching assembling shunt capacitor according to power factor and the voltage level of substation.