JP2012189403A - 回転電機 - Google Patents
回転電機 Download PDFInfo
- Publication number
- JP2012189403A JP2012189403A JP2011052344A JP2011052344A JP2012189403A JP 2012189403 A JP2012189403 A JP 2012189403A JP 2011052344 A JP2011052344 A JP 2011052344A JP 2011052344 A JP2011052344 A JP 2011052344A JP 2012189403 A JP2012189403 A JP 2012189403A
- Authority
- JP
- Japan
- Prior art keywords
- current
- ground fault
- neutral point
- phase
- armature winding
- 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.)
- Pending
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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
- H02H7/06—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 dynamo-electric generators; for synchronous capacitors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
【解決手段】本発明は上記課題を解決するために、三相電機子巻線を有する回転電機において、中性点に接地抵抗を備え、電流計測手段を前記電機子巻線の少なくとも2相に備え、相電流を比較し、相によって高調波成分の構成が異なる際にコイル地絡検出と判定することを特徴とする。
【選択図】 図1
Description
2 電流計測手段
2n 電流検出手段
3 断路器
4 電気ブレーキ用断路器
5 遮断器
6 電流検出装置
7,9,13 演算装置
10 中性点接地抵抗
11 回転速度検出手段
14 巻線インピーダンス
15 中性点接地
16 地絡箇所
17 電気ブレーキ回路側中性点接地
18 地絡コイル
Claims (7)
- 2相以上からなる電機子巻線を有し、電流計測手段を前記電機子巻線の少なくとも2相に備え、前記電流計測手段により計測した電流に含まれる高調波成分を比較し、相によって高調波成分の構成が異なる際にコイル地絡検出と判定する回転電機。
- 前記電流計測手段により計測した電流に含まれる高調波成分のうち、第3高調波成分の振幅値を比較することを特徴とする請求項1記載の回転電機。
- 電機子巻線が複数の並列回路より構成され、電流計測手段を前記並列回路のうち2つ以上の中性点側に備え、各回路電流に含まれる高調波成分を比較することでコイル地絡を検出することを特徴とする請求項1記載の回転電機。
- 三相電機子巻線を有し、中性点に接地抵抗を備え、ライン側に三相短絡かつ地絡する電気ブレーキ断路器を備え、電気ブレーキ印加時の相電流の高調波成分が相によって異なる際にコイル地絡検出と判定することを特徴とする請求項1記載の回転電機。
- 三相電機子巻線を有し、中性点に接地抵抗を備え、電流計測手段を前記電機子巻線の中性点側,ライン側両方に備え、双方の計測した相電流に含まれる高調波成分を比較し、差がある際にコイル地絡検出と判定する回転電機。
- 三相電機子巻線を有し、中性点に接地抵抗を備え、ライン側に三相短絡かつ地絡する電気ブレーキ断路器を備え、電気ブレーキ回路の中性点と接地の間に電流検出手段を備え、前記電流検出手段における電流値からコイル地絡検出を判定する回転電機。
- 三相電機子巻線を有し、中性点に接地抵抗を備え、ライン側に三相短絡かつ地絡する電気ブレーキ断路器を備え、中性点接地抵抗と接地との間および電気ブレーキ回路の中性点と接地の間にそれぞれ電流検出手段を備え、2つの電流検出手段の検出した電流値の差からコイル地絡検出を判定することを特徴とする請求項6記載の回転電機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011052344A JP2012189403A (ja) | 2011-03-10 | 2011-03-10 | 回転電機 |
US13/366,410 US20120229144A1 (en) | 2011-03-10 | 2012-02-06 | Electric rotating machine |
EP12000799A EP2501009A1 (en) | 2011-03-10 | 2012-02-07 | Electric rotating machine |
CN2012100299207A CN102680852A (zh) | 2011-03-10 | 2012-02-10 | 旋转电机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011052344A JP2012189403A (ja) | 2011-03-10 | 2011-03-10 | 回転電機 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2012189403A true JP2012189403A (ja) | 2012-10-04 |
Family
ID=45606955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011052344A Pending JP2012189403A (ja) | 2011-03-10 | 2011-03-10 | 回転電機 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120229144A1 (ja) |
EP (1) | EP2501009A1 (ja) |
JP (1) | JP2012189403A (ja) |
CN (1) | CN102680852A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111219842A (zh) * | 2019-12-09 | 2020-06-02 | 宁波奥克斯电气股份有限公司 | 一种空调器室外机的噪音检测方法及装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014215130A1 (de) * | 2013-08-02 | 2015-02-05 | Schaeffler Technologies Gmbh & Co. Kg | Verfahren zur Bestimmung eines Fehlers in einem elektronisch kommutierten Elektromotor |
CN103575959B (zh) * | 2013-09-02 | 2017-02-01 | 北京交通大学 | 一种新型非接触式三相电流测量方法 |
ES2536798B2 (es) * | 2014-10-30 | 2017-02-03 | Universidad Politécnica de Madrid | Sistema y método de protección 100% tierra estátor basado en la medida de tercer armónico autoajustable |
EP3570399B1 (en) * | 2018-05-18 | 2022-03-16 | ABB Schweiz AG | Method and apparatus for use in earth-fault protection |
US10778135B2 (en) | 2018-10-31 | 2020-09-15 | Hamilton Sunstrand Corporation | Motor parallel winding differential current protection |
CN110488136B (zh) * | 2019-08-12 | 2021-11-30 | 河海大学 | 调相机励磁系统的转子一点接地故障检测方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5415148A (en) * | 1977-07-05 | 1979-02-03 | Mitsubishi Electric Corp | Differential protective realy |
JPS5674024A (en) * | 1979-11-20 | 1981-06-19 | Tokyo Shibaura Electric Co | Method of protecting rotary electric machine |
WO2003044545A1 (de) * | 2001-11-19 | 2003-05-30 | Alstom Technology Ltd | Verfahren zum detektieren eines in einer elektrischen ein-richtung in der nähe eines neutralen punktes auftretenden erdschlusses sowie vorrichtung zur durchführung und anwendung des verfahrens |
WO2004040732A1 (en) * | 2002-10-29 | 2004-05-13 | Alstom Technology Ltd | Earth fault protection for synchronous machines |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5910127A (ja) | 1982-07-09 | 1984-01-19 | 株式会社日立製作所 | 発電機の地絡保護継電装置 |
JPS5925529A (ja) | 1982-07-30 | 1984-02-09 | 株式会社日立製作所 | 地絡保護方式 |
EP0131718B1 (de) * | 1983-06-22 | 1987-01-14 | BBC Brown Boveri AG | Einrichtung zur Erfassung eines Erdschlusses in der Rotorwicklung einer elektrischen Maschine |
SE8400591L (sv) * | 1984-02-06 | 1985-08-07 | Aelmhults Elektromek Andersson | Anordning for anslutning av en pulserande spenning over en lindning vid kontroll av en elektrisk maskin |
JPH0336920A (ja) | 1989-06-30 | 1991-02-18 | Toshiba Corp | 回転電機地絡保護装置 |
CA2106357A1 (en) * | 1993-07-07 | 1995-01-08 | Murty V. V. S. Yalla | Method for implementing selectable protective relay functions |
US5691643A (en) * | 1994-10-11 | 1997-11-25 | Kabushiki Kaisha Toshiba | Ground fault detecting apparatus and method for detecting ground fault of field circuit and exciting circuit by detecting ground fault current flowing from ground to neutral point of exciting circuit |
JP2005033877A (ja) | 2003-07-09 | 2005-02-03 | Mitsubishi Electric Corp | ガスタービン発電プラントの発電機の地絡保護装置 |
CN100345351C (zh) * | 2005-01-20 | 2007-10-24 | 长沙理工大学 | 小电流接地系统接地故障选线与保护方法 |
ES2263375B1 (es) * | 2005-04-15 | 2007-11-16 | GAMESA INNOVATION & TECHNOLOGY, S.L. | Dispositivo generador de huecos de tension. |
US8405940B2 (en) * | 2009-10-13 | 2013-03-26 | Schweitzer Engineering Laboratories Inc | Systems and methods for generator ground fault protection |
-
2011
- 2011-03-10 JP JP2011052344A patent/JP2012189403A/ja active Pending
-
2012
- 2012-02-06 US US13/366,410 patent/US20120229144A1/en not_active Abandoned
- 2012-02-07 EP EP12000799A patent/EP2501009A1/en not_active Withdrawn
- 2012-02-10 CN CN2012100299207A patent/CN102680852A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5415148A (en) * | 1977-07-05 | 1979-02-03 | Mitsubishi Electric Corp | Differential protective realy |
JPS5674024A (en) * | 1979-11-20 | 1981-06-19 | Tokyo Shibaura Electric Co | Method of protecting rotary electric machine |
WO2003044545A1 (de) * | 2001-11-19 | 2003-05-30 | Alstom Technology Ltd | Verfahren zum detektieren eines in einer elektrischen ein-richtung in der nähe eines neutralen punktes auftretenden erdschlusses sowie vorrichtung zur durchführung und anwendung des verfahrens |
WO2004040732A1 (en) * | 2002-10-29 | 2004-05-13 | Alstom Technology Ltd | Earth fault protection for synchronous machines |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111219842A (zh) * | 2019-12-09 | 2020-06-02 | 宁波奥克斯电气股份有限公司 | 一种空调器室外机的噪音检测方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
US20120229144A1 (en) | 2012-09-13 |
EP2501009A1 (en) | 2012-09-19 |
CN102680852A (zh) | 2012-09-19 |
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