Based on the distributed parameter model for transmission line, a new fault location method for short circuit fault of two points on different phases of the power transmission line is presented.
基于高压输电线路的分布参数模型，使用线路两端电压、电流的正序和负序分量，对高压输电线路两点异相故障提出了一种新的测距算法。
The system carries out parameter setting by fewer keys, adopts the PWM technique to carry on the charge management of storage battery. The protection measures of overload and short circuit are used.
系统以较少的按键实现了参数设置，采用PWM技术对蓄电池进行充电管理，采取了负载过流、短路保护措施。
Two Solutions to the model equivalent parameter estimation are proposed, one based on the three-phase short-circuit capacity, this method works with good computational speed, but accuracy is not high;
对该模型提出两种求解方法，一是基于三相短路容量思想的等值参数估计，计算速度快，但精度不高；
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