CN101707357A - 直流供电系统中利用交流电气量进行印证的直流保护方法 - Google Patents
直流供电系统中利用交流电气量进行印证的直流保护方法 Download PDFInfo
- Publication number
- CN101707357A CN101707357A CN200910234338A CN200910234338A CN101707357A CN 101707357 A CN101707357 A CN 101707357A CN 200910234338 A CN200910234338 A CN 200910234338A CN 200910234338 A CN200910234338 A CN 200910234338A CN 101707357 A CN101707357 A CN 101707357A
- Authority
- CN
- China
- Prior art keywords
- direct current
- electric quantity
- processing unit
- data processing
- current protecting
- 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.)
- Granted
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009102343382A CN101707357B (zh) | 2009-11-24 | 2009-11-24 | 直流供电系统中利用交流电气量进行印证的直流保护方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009102343382A CN101707357B (zh) | 2009-11-24 | 2009-11-24 | 直流供电系统中利用交流电气量进行印证的直流保护方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101707357A true CN101707357A (zh) | 2010-05-12 |
CN101707357B CN101707357B (zh) | 2012-04-25 |
Family
ID=42377559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009102343382A Active CN101707357B (zh) | 2009-11-24 | 2009-11-24 | 直流供电系统中利用交流电气量进行印证的直流保护方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101707357B (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102522732A (zh) * | 2011-12-06 | 2012-06-27 | 国电南瑞科技股份有限公司 | 带有多路光纤接口的直流保护系统及其直流保护方法 |
CN104377651A (zh) * | 2014-11-21 | 2015-02-25 | 许继电气股份有限公司 | 一种大功率整流变压器及阀柜交、直流差动保护方法 |
CN108508291A (zh) * | 2018-03-13 | 2018-09-07 | 云南电网有限责任公司电力科学研究院 | 一种直流保护功能检测方法及系统 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2342507Y (zh) * | 1998-09-17 | 1999-10-06 | 郑云辉 | 直流操作电源的充放电保护装置 |
CN101232177B (zh) * | 2008-01-29 | 2010-11-10 | 西安交通大学 | 高压直流输电线路距离保护方法 |
CN101521368B (zh) * | 2008-11-20 | 2011-05-04 | 国电南瑞科技股份有限公司 | 一种结合直流母线电压的直流电流保护系统 |
-
2009
- 2009-11-24 CN CN2009102343382A patent/CN101707357B/zh active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102522732A (zh) * | 2011-12-06 | 2012-06-27 | 国电南瑞科技股份有限公司 | 带有多路光纤接口的直流保护系统及其直流保护方法 |
CN102522732B (zh) * | 2011-12-06 | 2015-01-14 | 国电南瑞科技股份有限公司 | 带有多路光纤接口的直流保护系统 |
CN104377651A (zh) * | 2014-11-21 | 2015-02-25 | 许继电气股份有限公司 | 一种大功率整流变压器及阀柜交、直流差动保护方法 |
CN108508291A (zh) * | 2018-03-13 | 2018-09-07 | 云南电网有限责任公司电力科学研究院 | 一种直流保护功能检测方法及系统 |
Also Published As
Publication number | Publication date |
---|---|
CN101707357B (zh) | 2012-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8031447B2 (en) | Transformer through-fault current monitor | |
EP2335082B1 (en) | Method and apparatus for dynamic signal switching of a merging unit in an electrical power system | |
US9568532B2 (en) | Wind turbine fault detection circuit and method | |
CN101718813B (zh) | 电力二次系统电压采集回路监测方法 | |
CN106443320B (zh) | 用于检测lvdc电线中的接地故障的方法及其电子设备 | |
CN101403779B (zh) | 一种高压输电线路参数测量装置及系统 | |
CN101609116B (zh) | 一种输入缺相新的检测方法 | |
CN101521368B (zh) | 一种结合直流母线电压的直流电流保护系统 | |
CN102280864A (zh) | 配网系统保护装置故障后带电处理方法及便携式保护装置 | |
CN201327509Y (zh) | 一种高压输电线路参数测量装置及系统 | |
CN101707357B (zh) | 直流供电系统中利用交流电气量进行印证的直流保护方法 | |
KR102206379B1 (ko) | 태양광발전 접지저항 측정 시스템 및 방법 | |
JP2005024469A (ja) | 高調波監視システム、および高調波監視方法 | |
CN104049161A (zh) | 一种变电所现场避雷器不拆一次高压引线的试验连接结构及试验方法 | |
CN103163357A (zh) | 多通道漏电流监测系统 | |
JP2014128165A (ja) | 絶縁判定システム | |
KR101277141B1 (ko) | 전자식 전력량계와 이의 배전계통 감시방법 | |
CN101707356B (zh) | 直流供电系统中利用模拟交流整流的直流保护方法 | |
EP3509177B1 (en) | Method for detecting earth-fault conditions in a power conversion apparatus | |
GB2592147A (en) | An electrical protection system and a method thereof | |
CN108027399A (zh) | 用于检测电击危险的电路 | |
KR101526822B1 (ko) | 전기 관리자용 전기 설비 설치 안전 점검 단말기 및 그 방법 | |
CN101764394B (zh) | 整流单元直流差动保护方法 | |
CN108279345B (zh) | 一种变电所送电检验装置 | |
JP2011244593A (ja) | 事故様相判定装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: NARI NANJING CONTROL SYSTEM LTD. Effective date: 20141202 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20141202 Address after: High road high tech Development Zone Nanjing city Jiangsu province 210061 No. 20 Patentee after: NARI Technology Development Co., Ltd. Patentee after: SGCC NARI Nanjing Control System Co., Ltd. Address before: High road high tech Development Zone Nanjing city Jiangsu province 210061 No. 20 Patentee before: NARI Technology Development Co., Ltd. |