CN102801131B - 一种中性线断线检测保护方法和装置 - Google Patents
一种中性线断线检测保护方法和装置 Download PDFInfo
- Publication number
- CN102801131B CN102801131B CN201210326907.8A CN201210326907A CN102801131B CN 102801131 B CN102801131 B CN 102801131B CN 201210326907 A CN201210326907 A CN 201210326907A CN 102801131 B CN102801131 B CN 102801131B
- Authority
- CN
- China
- Prior art keywords
- signal
- neutral line
- current
- processing unit
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007935 neutral effect Effects 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000004458 analytical method Methods 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 244000287680 Garcinia dulcis Species 0.000 claims 2
- 230000000694 effects Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210326907.8A CN102801131B (zh) | 2012-09-06 | 2012-09-06 | 一种中性线断线检测保护方法和装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210326907.8A CN102801131B (zh) | 2012-09-06 | 2012-09-06 | 一种中性线断线检测保护方法和装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102801131A CN102801131A (zh) | 2012-11-28 |
CN102801131B true CN102801131B (zh) | 2015-12-09 |
Family
ID=47200150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210326907.8A Active CN102801131B (zh) | 2012-09-06 | 2012-09-06 | 一种中性线断线检测保护方法和装置 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102801131B (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103323745A (zh) * | 2013-06-21 | 2013-09-25 | 深圳供电局有限公司 | 继电保护用tv二次中性线隐性缺陷监测定位方法及装置 |
CN104158149A (zh) * | 2014-07-10 | 2014-11-19 | 国家电网公司 | 一种带有断零线保护功能的智能漏电保护器及断零线保护方法 |
CN106093683B (zh) * | 2016-06-29 | 2019-03-12 | 河南平芝高压开关有限公司 | 加热器断线检测系统以及断线检测方法 |
US10868417B2 (en) | 2016-12-09 | 2020-12-15 | Southwire Company, Llc | Open neutral detector |
CN106972462B (zh) * | 2017-03-16 | 2020-02-21 | 国网山西省电力公司晋城供电公司 | 低压配电柜中性线断线保护装置 |
CN107515353A (zh) * | 2017-09-08 | 2017-12-26 | 深圳供电局有限公司 | 一种pt/ct二次中性线运行智能监测仪 |
CN108008338B (zh) * | 2017-11-13 | 2020-04-14 | 国网江西省电力有限公司电力科学研究院 | 一种电能表中性线非有效接入自动识别方法 |
CN109061394B (zh) * | 2018-09-14 | 2023-10-13 | 国网江苏省电力有限公司镇江供电分公司 | 三相四线制供电系统零线断线报警定位装置及方法 |
CN111948575A (zh) * | 2020-08-04 | 2020-11-17 | 中国南方电网有限责任公司超高压输电公司贵阳局 | 电流互感器二次侧中性线断线检测方法及装置 |
CN114966474A (zh) | 2021-02-26 | 2022-08-30 | 华为数字能源技术有限公司 | 一种三相配电系统的故障检测方法及装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5483408A (en) * | 1994-03-25 | 1996-01-09 | Eaton Corporation | Overcurrent trip unit with separately adjustable neutral protection |
CN102005720A (zh) * | 2010-10-21 | 2011-04-06 | 重庆大学 | 中性线断线检测保护方法及装置 |
CN201975769U (zh) * | 2011-04-28 | 2011-09-14 | 许清霞 | 低压配电中性线监控装置 |
-
2012
- 2012-09-06 CN CN201210326907.8A patent/CN102801131B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5483408A (en) * | 1994-03-25 | 1996-01-09 | Eaton Corporation | Overcurrent trip unit with separately adjustable neutral protection |
CN102005720A (zh) * | 2010-10-21 | 2011-04-06 | 重庆大学 | 中性线断线检测保护方法及装置 |
CN201975769U (zh) * | 2011-04-28 | 2011-09-14 | 许清霞 | 低压配电中性线监控装置 |
Also Published As
Publication number | Publication date |
---|---|
CN102801131A (zh) | 2012-11-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102801131B (zh) | 一种中性线断线检测保护方法和装置 | |
CN204166106U (zh) | 三相异步电机故障监测及报警系统 | |
CN207817127U (zh) | 一种干式空心电抗器故障检测系统 | |
CN104297687A (zh) | 三相异步电机故障监测及报警系统 | |
CN102354427A (zh) | 剩余电流式电气火灾柔性在线辨识方法及装置 | |
CN201805222U (zh) | 使用小波熵的串联故障电弧检测装置 | |
CN103852694A (zh) | 电力电缆智能接地箱 | |
CN202502595U (zh) | 一种多功能电气火灾监控探测器 | |
CN204216675U (zh) | 基于can总线式的配电柜漏电监控及防护系统 | |
CN117496680A (zh) | 电气火灾监控探测器电路 | |
CN103336221A (zh) | 一种电力电缆故障检测系统 | |
CN200976032Y (zh) | 一种加热炉电阻丝的故障检测装置 | |
CN203774784U (zh) | 光伏逆变器母线防反接保护电路 | |
CN106685080A (zh) | 断路器及其控制系统 | |
CN105203700A (zh) | 高压电缆分接箱内部环境实时预警系统 | |
CN106256085A (zh) | 异常检测装置 | |
CN201477166U (zh) | 工作地线失效自动检测模块 | |
CN202929096U (zh) | 感应式高压带电检测装置 | |
CN202126461U (zh) | 电接触点安全监测模块 | |
CN102025131A (zh) | 弧光监测保护系统 | |
CN210720685U (zh) | 基于小电流接地选线的漏电监测装置 | |
CN204028049U (zh) | 高压电缆分接箱内部环境实时预警系统 | |
CN103001176A (zh) | 用于道路交通信号控制机的驱动线路漏电保护电路 | |
CN206788283U (zh) | 一种基于电力线载波传输的低压电气安全监测装置 | |
CN215498243U (zh) | 一种配电箱的漏电保护系统 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C41 | Transfer of patent application or patent right or utility model | ||
CB03 | Change of inventor or designer information |
Inventor after: Zeng Liqiang Inventor after: Lei Yi Inventor after: Yong Jing Inventor after: Yu Huaxing Inventor after: Deng Qun Inventor after: Liu Kanglin Inventor after: Hang Qifei Inventor after: Wu Yanfang Inventor after: Zhang Yulan Inventor after: Cheng Qiang Inventor before: Zeng Liqiang Inventor before: Yong Jing Inventor before: Liu Kanglin Inventor before: Hang Qifei Inventor before: Wu Yanfang Inventor before: Zhang Yulan |
|
COR | Change of bibliographic data | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20151113 Address after: 400044 Shapingba street, Shapingba District, Chongqing, No. 174 Applicant after: Chongqing University Applicant after: State Grid Corporation of China Applicant after: Jiangbei Power Supply Branch of State Grid Chongqing Electric Power Company Address before: 400044 Shapingba street, Shapingba District, Chongqing, No. 174 Applicant before: Chongqing University |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |