CN110456299B - 一种电流互感器二次绕组匝间短路故障在线检测方法 - Google Patents
一种电流互感器二次绕组匝间短路故障在线检测方法 Download PDFInfo
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- CN110456299B CN110456299B CN201910774258.XA CN201910774258A CN110456299B CN 110456299 B CN110456299 B CN 110456299B CN 201910774258 A CN201910774258 A CN 201910774258A CN 110456299 B CN110456299 B CN 110456299B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
- G01R35/007—Standards or reference devices, e.g. voltage or resistance standards, "golden references"
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
绕组状态 | 椭圆倾斜角的变化 | 椭圆离心率的变化 | 椭圆轨迹面积变化量 |
正常状态 | 随功率因数的减小而逆时针旋转 | 几乎不会发生变化 | 在互感器允许运行范围内不会相差很大 |
匝间短路 | 不随功率因数的改变而变化 | 较正常状态下变化1%以上 | 大于正常状态下轨迹面积的上百倍 |
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Families Citing this family (5)
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CN110988751A (zh) * | 2019-12-09 | 2020-04-10 | 西安欣东源电气有限公司 | 一种检测电抗器匝间短路故障的电路及方法 |
CN111142048B (zh) * | 2019-12-31 | 2021-05-14 | 三峡大学 | 基于空间三维曲线分析的变压器绕组短路故障在线检测方法 |
CN111679184A (zh) * | 2020-07-06 | 2020-09-18 | 国家电网有限公司 | 一种通过电机电流评估隔离开关性能的方法 |
CN114264976A (zh) * | 2022-01-13 | 2022-04-01 | 云南电网有限责任公司电力科学研究院 | 一种双抽头双边比电流互感器匝间短路检测系统及方法 |
CN115453419A (zh) * | 2022-07-28 | 2022-12-09 | 国网福建省电力有限公司电力科学研究院 | 一种基于变压器绕组检测的变压器抗短路能力评价方法 |
Citations (5)
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JP2010230455A (ja) * | 2009-03-26 | 2010-10-14 | Panasonic Electric Works Co Ltd | 漏電検出装置 |
JP2011141258A (ja) * | 2010-01-08 | 2011-07-21 | Gcomm Corp | リチウムイオン二次電池のマイクロショート検出回路および検出装置 |
CN104930963A (zh) * | 2015-06-11 | 2015-09-23 | 国家电网公司 | 一种基于阻抗圆特性的变压器绕组变形判别方法 |
CN109507520A (zh) * | 2018-12-20 | 2019-03-22 | 国网北京市电力公司 | 变压器的匝间故障检测方法、装置、存储介质和处理器 |
CN109670242A (zh) * | 2018-12-20 | 2019-04-23 | 浙江大学 | 基于椭圆包络线的变压器绕组变形无监督在线监测方法 |
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Patent Citations (5)
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JP2010230455A (ja) * | 2009-03-26 | 2010-10-14 | Panasonic Electric Works Co Ltd | 漏電検出装置 |
JP2011141258A (ja) * | 2010-01-08 | 2011-07-21 | Gcomm Corp | リチウムイオン二次電池のマイクロショート検出回路および検出装置 |
CN104930963A (zh) * | 2015-06-11 | 2015-09-23 | 国家电网公司 | 一种基于阻抗圆特性的变压器绕组变形判别方法 |
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CN109670242A (zh) * | 2018-12-20 | 2019-04-23 | 浙江大学 | 基于椭圆包络线的变压器绕组变形无监督在线监测方法 |
Non-Patent Citations (2)
Title |
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一种新的交流机车主变压器绕组状态在线监测方法;朱佼佼等;《中国电机工程学报》;20160420;第36卷(第8期);第2280-2288页 * |
基于变压器电压电流图形特性的绕组变形;李成祥等;《高电压技术》;20181130;第44卷(第11期);第3532-3539页 * |
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Application publication date: 20191115 Assignee: Yichang Yizhixing Technology Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2023980034895 Denomination of invention: An online detection method for inter turn short circuit faults in secondary windings of current transformers Granted publication date: 20210323 License type: Common License Record date: 20230426 |
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Effective date of registration: 20240623 Address after: 3rd Floor, Building 6, Guangqian Industrial Zone, Longzhu 3rd Road, Longzhu 3rd Road, Longguang Community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Province, 518000 Patentee after: SHENZHEN FRIENDCOM TECHNOLOGY DEVELOPMENT Co.,Ltd. Country or region after: China Address before: 443002 No. 8, University Road, Xiling District, Yichang, Hubei Patentee before: CHINA THREE GORGES University Country or region before: China |