| 零序互感对线路接地距离保护的影响分析 |
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| 引用本文： | 朱景富.零序互感对线路接地距离保护的影响分析[J].电力系统保护与控制,2009,37(9):113-115. |
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| 作者姓名： | 朱景富 |
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| 作者单位： | 河南省电力公司焦作供电公司，河南 焦作 454150 |
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| 摘 要： | 以接地距离保护动作方程为蓝本，运用电力系统故障计算软件这样的工具，从分析双回线之间的零序互感对接地距离保护测量阻抗值的影响入手，阐述了在接地距离保护整定计算中应计及线路零序互感的必要性，并举例分析了零序互感对接地距离保护测量值大小的影响趋势。为了消除这一影响，提出了含零序互感参量的用于精确测量的零序电流补偿系数概念，整定计算接地距离保护定值时，要考虑零序互感的影响，按最不利条件，并应把零序互感对接地距离保护测量阻抗的影响计算到保护定值中去。
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| 关 键 词： | 零序互感 接地距离保护 整定值 |
Zero-sequence mutual inductance on the ground distance elements impact analysis |
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| ZHU Jing-fu.Zero-sequence mutual inductance on the ground distance elements impact analysis[J].Power System Protection and Control,2009,37(9):113-115. |
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| Authors: | ZHU Jing-fu |
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| Affiliation: | Henan Jiaozuo Power Supply Company;Jiaozuo 454150;China |
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| Abstract: | Taking the action equation of the ground distance elements as the prototype,this paper points out that mutual inductance value of zero-sequence is essential to settings of the ground distance elements,while using the power system failures calculation software,considering the impact of double lines between the zero-sequence mutual inductance to measurement of the ground distance elements.The effect of zero-sequence inductance mutual on distance measurement is illustrated.In order to eliminate the impact,the ... |
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| Keywords: | zero-sequence mutual inductance ground distance elements setting value |
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