CN102055173A - 一种防止空投变压器励磁涌流造成差动保护误动的方法 - Google Patents
一种防止空投变压器励磁涌流造成差动保护误动的方法 Download PDFInfo
- Publication number
- CN102055173A CN102055173A CN2010105770828A CN201010577082A CN102055173A CN 102055173 A CN102055173 A CN 102055173A CN 2010105770828 A CN2010105770828 A CN 2010105770828A CN 201010577082 A CN201010577082 A CN 201010577082A CN 102055173 A CN102055173 A CN 102055173A
- Authority
- CN
- China
- Prior art keywords
- transformer
- protection
- enter step
- differential protection
- afterwards
- 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
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/045—Differential protection of transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010105770828A CN102055173B (zh) | 2010-12-08 | 2010-12-08 | 一种防止空投变压器励磁涌流造成差动保护误动的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010105770828A CN102055173B (zh) | 2010-12-08 | 2010-12-08 | 一种防止空投变压器励磁涌流造成差动保护误动的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102055173A true CN102055173A (zh) | 2011-05-11 |
CN102055173B CN102055173B (zh) | 2013-02-06 |
Family
ID=43959254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010105770828A Expired - Fee Related CN102055173B (zh) | 2010-12-08 | 2010-12-08 | 一种防止空投变压器励磁涌流造成差动保护误动的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102055173B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102222880A (zh) * | 2011-06-10 | 2011-10-19 | 河南省电力公司许昌供电公司 | 识别变压器励磁涌流并避免变压器差动保护误动的方法 |
CN106374429A (zh) * | 2016-11-14 | 2017-02-01 | 国网上海市电力公司 | 变电站空载投入时的励磁涌流保护方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5627712A (en) * | 1990-04-19 | 1997-05-06 | General Electric Company | Transformer differential relay |
CN1558482A (zh) * | 2004-01-15 | 2004-12-29 | 叶念国 | 变压器励磁涌流的抑制方法及装置 |
CN101013809A (zh) * | 2007-02-14 | 2007-08-08 | 国网南京自动化研究院 | 高速采样的间断角闭锁差动保护数值方法 |
CN101295869A (zh) * | 2008-04-24 | 2008-10-29 | 南京中德保护控制系统有限公司 | 变压器高可靠励磁涌流制动方法 |
CN101777753A (zh) * | 2010-01-13 | 2010-07-14 | 华中电网有限公司 | 变压器基于多分量的复合电流涌流判别方法及闭锁继电器 |
-
2010
- 2010-12-08 CN CN2010105770828A patent/CN102055173B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5627712A (en) * | 1990-04-19 | 1997-05-06 | General Electric Company | Transformer differential relay |
CN1558482A (zh) * | 2004-01-15 | 2004-12-29 | 叶念国 | 变压器励磁涌流的抑制方法及装置 |
CN101013809A (zh) * | 2007-02-14 | 2007-08-08 | 国网南京自动化研究院 | 高速采样的间断角闭锁差动保护数值方法 |
CN101295869A (zh) * | 2008-04-24 | 2008-10-29 | 南京中德保护控制系统有限公司 | 变压器高可靠励磁涌流制动方法 |
CN101777753A (zh) * | 2010-01-13 | 2010-07-14 | 华中电网有限公司 | 变压器基于多分量的复合电流涌流判别方法及闭锁继电器 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102222880A (zh) * | 2011-06-10 | 2011-10-19 | 河南省电力公司许昌供电公司 | 识别变压器励磁涌流并避免变压器差动保护误动的方法 |
CN102222880B (zh) * | 2011-06-10 | 2014-07-16 | 河南省电力公司许昌供电公司 | 识别变压器励磁涌流并避免变压器差动保护误动的方法 |
CN106374429A (zh) * | 2016-11-14 | 2017-02-01 | 国网上海市电力公司 | 变电站空载投入时的励磁涌流保护方法 |
CN106374429B (zh) * | 2016-11-14 | 2019-02-26 | 国网上海市电力公司 | 变电站空载投入时的励磁涌流保护方法 |
Also Published As
Publication number | Publication date |
---|---|
CN102055173B (zh) | 2013-02-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9590412B2 (en) | System for improving lightning immunity for a solid state power controller | |
EP2053716A2 (en) | Alternating current series arc fault detection method | |
CN101467322A (zh) | 具有电压相关和电压无关工作模式的漏电保护设备 | |
EP2424061A2 (en) | Branch circuit protection with in-line solid state device | |
CA2621538C (en) | Method and system for through fault detection in electrical devices | |
CN104426128B (zh) | 中性线断线检测电路及相应剩余电流断路器 | |
CN104901284A (zh) | 距离保护装置三相pt断线检测方法和防误动方法 | |
CN101097818B (zh) | 距离保护继电器和方法 | |
CN105655996B (zh) | 一种稳定控制用的元件故障跳闸判别方法及装置 | |
KR100408427B1 (ko) | 누설전류차단기의 서지 오동작 방지회로 | |
CN105305369B (zh) | 一种基于晶闸管的固态故障电流限制器 | |
CN102055173B (zh) | 一种防止空投变压器励磁涌流造成差动保护误动的方法 | |
US20090257156A1 (en) | Method of setting a ground fault trip function for a trip unit and a trip unit having a defined trip function for ground fault protection | |
CN104158149A (zh) | 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 | |
CN109318714A (zh) | 电动汽车高压配电系统上下电控制方法 | |
CN104167711B (zh) | 自复位式延时锁定保护装置 | |
CN102222880B (zh) | 识别变压器励磁涌流并避免变压器差动保护误动的方法 | |
CN205595755U (zh) | 一种高压电路继电保护系统 | |
US5097380A (en) | Sectionalizer control | |
CN106786617A (zh) | 一种电动机低电压保护方法及装置 | |
EP2651026B1 (en) | Automatic fault isolation methodology | |
CN106486898B (zh) | 一种核电厂开关柜二次回路中的电路安全设计方法 | |
CN107919648A (zh) | 一种防重合冲击的自适应重合闸装置及方法 | |
CN107192919B (zh) | 一种接地方式自识别的配电网馈供线路保护装置及方法 | |
CN206850414U (zh) | 一种接地方式自识别的配电网馈供线路保护装置 |
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: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: XUCHANG POWER SUPPLY COMPANY, STATE GRID HUNAN ELECTRIC POWER COMPANY Effective date: 20140113 Owner name: XUCHANG POWER SUPPLY COMPANY, STATE GRID HUNAN ELE Effective date: 20140113 |
|
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee |
Owner name: XUCHANG POWER SUPPLY COMPANY, STATE GRID HUNAN ELE Free format text: FORMER NAME: XUCHANG POWER SUPPLY COMPANY OF HENAN ELECTRIC POWER COMPANY;XJ ELECTRIC CO., LTD. |
|
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 461000 XUCHANG, HENAN PROVINCE TO: 100031 XICHENG, BEIJING |
|
CP01 | Change in the name or title of a patent holder |
Address after: No. 288 Xuchang City, Henan province 461000 City Road Patentee after: XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. Address before: No. 288 Xuchang City, Henan province 461000 City Road Patentee before: Xuchang Power Supply Company of Henan Electric Power Co. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20140113 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. Address before: No. 288 Xuchang City, Henan province 461000 City Road Patentee before: XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20211208 |
|
CF01 | Termination of patent right due to non-payment of annual fee |