变电站常用的无功补偿装置,你知道有哪些吗?
无功补偿可以分为高压无功补偿和低压无功补偿。无功补偿的特性就是只补前面的,所以在高压处装无功补偿装置一是价位高,二是补偿效果不明显。推荐使用低压无功补偿装置。低压无功补偿的方式可分为集中补偿和就地补偿。无功补偿的装置可分为静态、动态。
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(1)无功补偿的基本概念
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![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzA1LzEyMTkvMjIyMDAwMjQyXzVfMjAyMTA1MTIwNzAwNTM0NDIuanBn.jpg)
(2)无功电压补偿装置
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(3)超高压线路无功补偿装置
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![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDUvMTIxOS8yMjIwMDAyNDJfMTBfMjAyMTA1MTIwNzAwNTQ5MTEuanBn.jpg)
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串联补偿电容器的原理:
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高压输电线路的静态稳定输送功率可由下式表示:
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当线路中安装有串补电容器后,线路的稳定输送功率为:
![](http://n4.ikafan.com/assetsj/blank.gif)
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