| 220kV馈供线路接地距离保护零序补偿系数选择 |
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| 引用本文： | 倪菁,董祖晨.220kV馈供线路接地距离保护零序补偿系数选择[J].供用电,2009,26(1):39-41. |
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| 作者姓名： | 倪菁 董祖晨 |
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| 作者单位： | 常州供电公司,江苏,常州,213003 |
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| 摘 要： | 根据线路接地距离保护中的零序补偿系数的常规计算方法，推导了220kV馈供线路接地距离保护中的零序补偿系数，分析了零序补偿系数对接地距离保护测量阻抗的影响。通过对实例的定量计算，提出了对220kV馈供线路接地距离保护中零序补偿系数整定计算时应考虑支接变压器阻抗的影响。
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| 关 键 词： | 馈供线路 接地距离保护 零序补偿系数 |
Selection of Zero-sequence Compensation Coefficient for Grounding-fault Distance Protection of 220 kV Feeders |
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| NI Jing,DONG Zhuchen.Selection of Zero-sequence Compensation Coefficient for Grounding-fault Distance Protection of 220 kV Feeders[J].Distribution & Utilization,2009,26(1):39-41. |
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| Authors: | NI Jing DONG Zhuchen |
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| Affiliation: | Changzhou Power Supply Company;Changzhou 213003;Jiangsu;China |
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| Abstract: | According to conventional calculation of zero-sequence compensation coefficient for grounding-fault distance protection,the paper derives the zero-sequence compensation coefficient for grounding-fault distance protection of 220 kV feeders,analyzes the impact of zero-sequence compensation coefficient on the measuring impedance of grounding-fault distance protection.Based on the calculation of an example,the paper suggests that it should take the transformer impedance into consideration during the calculation... |
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| Keywords: | feeder grounding-fault distance protection zero-sequence compensation coefficient |
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