| 引用本文: | 刘杨,李晓明,曹凯丽.220 kV系统高频保护异常运行分析及预防措施[J].电力自动化设备,2005,(5):98-101 |
| .Analysis of abnormal operation of 220 kV high-frequency protection and its countermeasures[J].Electric Power Automation Equipment,2005,(5):98-101 |
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| 摘要: |
| 针对5年来安徽省电网高频保护动作情况的统计结果及高频保护的运行情况，总结归纳出易发生误动的高频保护类型及造成误动的原因，主要有高频通道设备、收发信机、保护装置、通道干扰等问题。并结合实际介绍了防误动所采取的具体措施及改进办法，包括二次回路抗干扰措施：保护装置交、直流电压、电流入口处加装抗干扰电容；收发信机及保护装置加装抗干扰及反措；高频加工设备的反措等。 |
| 关键词: 高频保护 异常分析 对策 |
| DOI： |
| 分类号:TM773 |
| 基金项目: |
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| Analysis of abnormal operation of 220 kV high-frequency protection and its countermeasures |
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LIU Yang LI Xiao-ming CAO Kai-li
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| Abstract: |
| Based on the statistics of high-frequency protection operation within Anhui power network in recent five years, the protection types with frequent misoperations and their reasons are summarized, including high-frequency channel devices,transceiver,protection equipment,channel interference and so on. Some countermeasures against misoperation are introduced: anti-interference measures in secondary circuit; anti-interference capacitances at AC/DC voltage / current input channels of protection equipment; anti-interference and anti-accident measures for transceiver and protection equipment; anti-accident measures for high-frequency processing equipment. |
| Key words: high-frequency protection,abnormal analysis,countermeasure |
