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发明公开
CN105514955A 一种反应单相接地短路的距离继电器及动作方法、装置 无效 - 驳回

一种反应单相接地短路的距离继电器及动作方法、装置
摘要：
本发明公开了一种距离继电器动作方法、装置及反应单相接地短路的距离继电器，其中该方法包括如下步骤：获取动作判据比较量；分别计算θ1、θ2、θ3和θ4；分别判断0°≤θ1≤180°、180°≤θ2≤360°、0°≤θ3≤180°和180°≤θ4≤360°是否成立；当0°≤θ1≤180°、180°≤θ2≤360°、0°≤θ3≤180°且180°≤θ4≤360°时，生成使距离继电器动作的信号。本发明的相位比较判据简单，可靠性高，且距离继电器具有很强的抗过渡电阻能力，能自动判别故障相。
摘要（英）：

The invention discloses a method and device for movement of a distance relay and the distance relay for reflecting a single-phase ground short circuit. The method comprises the following steps of obtaining movement criterion comparative quantity, calculating theta 1, theta 2, theta 3 and theta 4 respectively, and judging whether it is true that 0 degree<=theta1<=180 degrees, 180 degrees<=theta 2<=360 degrees, 0 degree<=theta 3<=180 degrees and 180 degrees<=theta 4<=360 degrees; when 0 degree<=theta1<=180 degrees, 180 degrees<=theta 2<=360 degrees, 0 degree<=theta 3<=180 degrees and 180 degrees<=theta 4<=360 degrees, generating signals for enabling the distance relay to move. According to the method and device for movement of the distance relay and the distance relay for reflecting the single-phase ground short circuit, the phase comparison criterion is simple, the reliability is high, and the distance relay has very high transition resistance resisting capability and can automatically judge fault phases.

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