阻抗继电器与距离继电器分类的必要性分析

距离保护测量元件在线路保护中有广泛的应用。距离保护测量元件的研究是电力系统继电保护领域的重要课题。论文对距离保护测量元件为什么要分类,以及为什么把距离保护测量元件分为阻抗继电器与距离继电器两大类进行了分析。对阻抗继电器与测量阻抗的关系,距离继电器与直接阻抗的关系作了说明。对阻抗继电器与距离继电器特性的差异进行了说明。分析表明,距离保护测量元件分为阻抗继电器与距离继电器两大类,用测量阻抗分析阻抗继电器,用直接阻抗分析距离继电器,概念清楚,思路清晰,方法简捷。有利于对距离保护测量元件的研究与分析,有利于在实际应用中对距离保护测量元件性能的把握。论文建议,应该改变长期以来,阻抗继电器与距离继电器表示同一类事物的传统习惯。

NeCessity analysis about the classification of impedance relay and distance relay

The measuring elements of distance protection are extensively applied in transmission lines protection.Research on the measuring elements of distance protection is a very important project in power system protection.The paper analyzes the reason to classify the measuring elements of distance protection.And why the measuring elements of distance protection are divided into two main sorts,which are impedance relay and distance relay.The paper explains the relationship between the impedance relay and measuring impedance,the relationship between the distance relay and the substantive impedance.The paper introduces different characteristic of impedance relay and distance relay.The paper indicates that it is correct that the measuring elements of distance protection are divided into to two main sorts,which are impedance relay and distance relay.Using measuring impedance to analyze impedance relay and substantive impedance to analyze distance relay is very clear and also very convenient.And it is benefit to analyze and research the measuring elements of distance protection.And it is favorable to the practical use.The paper proposes that it is necessary to change our tradition of using impedance relay and distance relay to express the same thing.