A New Method of Applying Waveform Record of Starting Load to Analyze Protection Polarity
In view of problem that correctness of protection polarity cannot be determined since new power plant cannot provide enough load to general test instrument, the paper proposed a new method of applying waveform record of starting load to analyze protection polarity. The method uses time relation of w...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2012-06-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/id/8423 |
| _version_ | 1797868523021664256 |
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| author | LV Bin NI Sai-sai ZHANG Jie-shang WANG Wan-li GAO Bao-long |
| author_facet | LV Bin NI Sai-sai ZHANG Jie-shang WANG Wan-li GAO Bao-long |
| author_sort | LV Bin |
| collection | DOAJ |
| description | In view of problem that correctness of protection polarity cannot be determined since new power plant cannot provide enough load to general test instrument, the paper proposed a new method of applying waveform record of starting load to analyze protection polarity. The method uses time relation of waveform record to deduce angle relation of electric variables, namely converting time difference calibrated by waveform record of peak of voltage and current to phase angle, so as to judge correctness of protection polarity. The test result showed that the method is simple and practical. |
| first_indexed | 2024-04-09T23:58:20Z |
| format | Article |
| id | doaj.art-c754c89d51ec465ea91f107a6fdccc71 |
| institution | Directory Open Access Journal |
| issn | 1671-251X |
| language | zho |
| last_indexed | 2024-04-09T23:58:20Z |
| publishDate | 2012-06-01 |
| publisher | Editorial Department of Industry and Mine Automation |
| record_format | Article |
| series | Gong-kuang zidonghua |
| spelling | doaj.art-c754c89d51ec465ea91f107a6fdccc712023-03-17T02:02:11ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2012-06-013865861A New Method of Applying Waveform Record of Starting Load to Analyze Protection PolarityLV Bin0NI Sai-sai1ZHANG Jie-shangWANG Wan-liGAO Bao-long1.Gansu Electric Power Science Research Institute, Lanzhou 730050, China. 2.Ningxia Datang International Daba Power Generation Co., Ltd., Yinchuan 750001, China. 3.Baiyin Repair District of Lanzhou Ex1.Gansu Electric Power Science Research Institute, Lanzhou 730050, China. 2.Ningxia Datang International Daba Power Generation Co., Ltd., Yinchuan 750001, China. 3.Baiyin Repair District of Lanzhou ExIn view of problem that correctness of protection polarity cannot be determined since new power plant cannot provide enough load to general test instrument, the paper proposed a new method of applying waveform record of starting load to analyze protection polarity. The method uses time relation of waveform record to deduce angle relation of electric variables, namely converting time difference calibrated by waveform record of peak of voltage and current to phase angle, so as to judge correctness of protection polarity. The test result showed that the method is simple and practical.http://www.gkzdh.cn/article/id/8423thermal power plant, starting load, light load, protection polarity, waveform record, time difference, phase angle |
| spellingShingle | LV Bin NI Sai-sai ZHANG Jie-shang WANG Wan-li GAO Bao-long A New Method of Applying Waveform Record of Starting Load to Analyze Protection Polarity Gong-kuang zidonghua thermal power plant, starting load, light load, protection polarity, waveform record, time difference, phase angle |
| title | A New Method of Applying Waveform Record of Starting Load to Analyze Protection Polarity |
| title_full | A New Method of Applying Waveform Record of Starting Load to Analyze Protection Polarity |
| title_fullStr | A New Method of Applying Waveform Record of Starting Load to Analyze Protection Polarity |
| title_full_unstemmed | A New Method of Applying Waveform Record of Starting Load to Analyze Protection Polarity |
| title_short | A New Method of Applying Waveform Record of Starting Load to Analyze Protection Polarity |
| title_sort | new method of applying waveform record of starting load to analyze protection polarity |
| topic | thermal power plant, starting load, light load, protection polarity, waveform record, time difference, phase angle |
| url | http://www.gkzdh.cn/article/id/8423 |
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