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消弧线圈的基本知识

网址:www.xiaohuxianqua.cn  2021-07-15  作者:admin    阅读:

消弧线圈的基本知识
Basic knowledge of arc suppression coil
工作状态
working condition
消弧线圈的工作状态- -般有三种: 过补偿、欠补偿和全补偿,
There are three working states of arc suppression coil: over compensation, under compensation and full compensation,
过补偿(v<0,K> 1):感性电流大于容性电流;
Over compensation (V < 0, k > 1): inductive current is greater than capacitive current;
欠补偿(v>0,K< 1):感性电流小于容性电流;
Under compensation (V > 0, K < 1): inductive current is less than capacitive current;
全补偿(v=0,K= 1):感性电流等于容性电流。
Full compensation (v = 0, k = 1): inductive current is equal to capacitive current.
通常工作在过补偿状态下。
It usually works in the state of over compensation.
消弧线圈容量和变压器容量关系
Relationship between capacity of arc suppression coil and transformer
按DL/T 5222-2005公式18. 1.4计算消弧线圈容量之后,还应按DL/T 5222-2005第18.1.8条第3、4款,比较变压器容量。即消弧线圈容量不应超过变压器河北立体车库 消防报警器塑料配件 电缆接地箱 电缆保护接地箱 塑料土工格栅 消弧线圈装置 的三相总容量的50% (YNd, YNynd),或20% (YNyn) ,且不得大于三绕组变压器的任-绕组的容量。
After that, the capacity of transformer shall be calculated according to the formula of 524.18/2005 clause 524.18/t. That is to say, the capacity of arc suppression coil shall not exceed 50% (ynd, ynynd) or 20% (ynyn) of the total three-phase capacity of the transformer, and shall not be greater than the capacity of any winding of a three winding transformer.

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