CN110456299A - 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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- CN110456299A CN110456299A CN201910774258.XA CN201910774258A CN110456299A CN 110456299 A CN110456299 A CN 110456299A CN 201910774258 A CN201910774258 A CN 201910774258A CN 110456299 A CN110456299 A CN 110456299A
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- 238000004804 winding Methods 0.000 title claims abstract description 74
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- 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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Cited By (6)
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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 |
CN111142048A (zh) * | 2019-12-31 | 2020-05-12 | 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 |
WO2024198377A1 (zh) * | 2023-03-24 | 2024-10-03 | 西安热工研究院有限公司 | 电磁式电压互感器正常运行及匝间短路故障分析方法及系统 |
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朱佼佼等: "一种新的交流机车主变压器绕组状态在线监测方法", 《中国电机工程学报》 * |
李成祥等: "基于变压器电压电流图形特性的绕组变形", 《高电压技术》 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN111142048A (zh) * | 2019-12-31 | 2020-05-12 | 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 |
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 |
WO2024198377A1 (zh) * | 2023-03-24 | 2024-10-03 | 西安热工研究院有限公司 | 电磁式电压互感器正常运行及匝间短路故障分析方法及系统 |
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