CN112462201A - 基于分类识别的环形配电网单相接地故障选线方法 - Google Patents
基于分类识别的环形配电网单相接地故障选线方法 Download PDFInfo
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- CN112462201A CN112462201A CN202011479774.9A CN202011479774A CN112462201A CN 112462201 A CN112462201 A CN 112462201A CN 202011479774 A CN202011479774 A CN 202011479774A CN 112462201 A CN112462201 A CN 112462201A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
Abstract
Description
测量点 | 1 | 2 | 3 | 4 | 5 | 6 | 矢量和 |
幅值/A | 0.34 | -0.21 | 0.3 | -0.17 | -0.7 | -0.6 | -1.04 |
环线 | L1 | L2 | L3 |
幅值/A | 0.13 | 0.13 | -1.3 |
测量点 | 1 | 2 | 3 | 4 | 5 | 6 | 矢量和 |
幅值/A | 0.09 | 0.12 | -0.7 | 0.83 | 0.62 | -0.43 | +0.53 |
Sd1 | Sd2 | Sd3 | Sd4 | Sd5 | Sd6 | Sd7 | Sd8 | |
1 | +0.17 | +0.17 | ||||||
2 | +0.19 | +0.23 | +0.17 | |||||
3 | +0.15 | +0.21 | -1.82 |
Claims (5)
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CN202011479774.9A CN112462201A (zh) | 2020-12-16 | 2020-12-16 | 基于分类识别的环形配电网单相接地故障选线方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112924809A (zh) * | 2021-01-26 | 2021-06-08 | 国网江苏省电力有限公司徐州供电分公司 | 基于分类识别的环形配电网单相接地故障选线方法 |
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CN111650476A (zh) * | 2020-07-06 | 2020-09-11 | 国网江苏省电力有限公司沛县供电分公司 | 基于采样值法的配电网单相电弧性接地故障选线方法 |
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2020
- 2020-12-16 CN CN202011479774.9A patent/CN112462201A/zh active Pending
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EP1089081A2 (en) * | 1999-09-23 | 2001-04-04 | ABB Substation Automation Oy | Method for computational determination of ground fault distance in an electrical power distribution network having a ring configuration |
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CN103226176A (zh) * | 2013-04-15 | 2013-07-31 | 国家电网公司 | 一种配电网单相接地故障选线方法 |
CN103728532A (zh) * | 2013-12-26 | 2014-04-16 | 长园深瑞继保自动化有限公司 | 配电网单相接地故障判断与定位方法 |
CN107728000A (zh) * | 2017-05-31 | 2018-02-23 | 中国矿业大学 | 一种基于五时态相地增量电流的小电流接地防误选线方法 |
CN107179481A (zh) * | 2017-07-06 | 2017-09-19 | 中国矿业大学 | 环形中性点不接地配电网的单相接地故障选线方法 |
CN107907792A (zh) * | 2017-11-03 | 2018-04-13 | 国网江苏省电力公司新沂市供电公司 | 中性点经消弧线圈接地环形配电网单相接地选线方法 |
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Non-Patent Citations (3)
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杜东威 等: "一种基于DTU的配电网单相接地故障检测和定位方法", 《浙江电力》 * |
陈奎 等: "基于接地故障类型的综合选线研究", 《华北电力大学学报》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112924809A (zh) * | 2021-01-26 | 2021-06-08 | 国网江苏省电力有限公司徐州供电分公司 | 基于分类识别的环形配电网单相接地故障选线方法 |
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