JP5837645B2 - 回路遮断器用検出回路 - Google Patents
回路遮断器用検出回路 Download PDFInfo
- Publication number
- JP5837645B2 JP5837645B2 JP2014111201A JP2014111201A JP5837645B2 JP 5837645 B2 JP5837645 B2 JP 5837645B2 JP 2014111201 A JP2014111201 A JP 2014111201A JP 2014111201 A JP2014111201 A JP 2014111201A JP 5837645 B2 JP5837645 B2 JP 5837645B2
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- Prior art keywords
- circuit unit
- signal
- circuit
- output signal
- detection
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/02—Measuring effective values, i.e. root-mean-square values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/04—Measuring peak values or amplitude or envelope of ac or of pulses
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Measurement Of Current Or Voltage (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Description
20 検出センサ
30 ローパスフィルタ回路部
40 オフセット除去回路部
50 増幅回路部
60 サンプリング回路部
70 信号分類回路部
80 RMS検出回路部
90 基準電圧検出回路部
100 比較回路部
Claims (5)
- 回路遮断器用検出回路であって、
交流電力回路の電圧又は電流を検出して検出信号を出力する検出センサと、
前記検出センサの出力端に接続され、前記検出センサの出力信号の高周波成分を除去して出力するローパスフィルタ回路部と、
前記ローパスフィルタ回路部の出力端に接続され、前記ローパスフィルタ回路部の出力信号の直流オフセットを除去して出力するオフセット除去回路部と、
前記オフセット除去回路部の出力端に接続され、前記オフセット除去回路部の出力信号を増幅して出力する増幅回路部と、
前記増幅回路部の出力信号のほうが基準電圧より小さくなければ、回路遮断器が遮断位置に動作するように遮断制御信号を出力する比較回路部と、
前記増幅回路部の出力端に接続され、前記増幅回路部の出力信号から所定周波数の信号間隔で信号をサンプリングして出力するサンプリング回路部と、
前記ローパスフィルタ回路部の出力端に前記オフセット除去回路部と並列に接続され、前記ローパスフィルタ回路部の出力信号に対する二乗平均平方根(RMS)信号を出力するRMS検出回路部と、を含む、回路遮断器用検出回路。 - 前記オフセット除去回路部は、直流成分を除去して周波数成分のみを後段に伝達するカップリングコンデンサで構成される、請求項1に記載の回路遮断器用検出回路。
- 前記RMS検出回路部の出力端及び前記オフセット除去回路部の出力端に接続され、前記RMS検出回路部の出力信号及び前記オフセット除去回路部の出力信号に基づいて、前記オフセット除去回路部の出力信号が前記RMS検出回路部の出力信号より大きいときはハイレバルの出力信号を出力する基準電圧検出回路部をさらに含む、請求項1に記載の回路遮断器用検出回路。
- 前記基準電圧検出回路部の出力端及び前記サンプリング回路部の出力端に接続され、前記サンプリング回路部の出力信号から周波数成分信号を抽出し、前記抽出された周波数成分信号からパルス幅及び周期に基づいて目的とする周波数の信号を抽出して出力する信号分類回路部をさらに含む、請求項3に記載の回路遮断器用検出回路。
- 前記比較回路部は、前記基準電圧検出回路部の出力端及び前記信号分類回路部の出力端に接続され、前記信号分類回路部の出力信号のほうが前記基準電圧検出回路部の出力信号より小さくなければ前記回路遮断器が遮断位置に動作するように遮断制御信号を出力するように構成される、請求項4に記載の回路遮断器用検出回路。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0063592 | 2013-06-03 | ||
KR1020130063592A KR101476685B1 (ko) | 2013-06-03 | 2013-06-03 | 회로차단기 용 검출 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014236004A JP2014236004A (ja) | 2014-12-15 |
JP5837645B2 true JP5837645B2 (ja) | 2015-12-24 |
Family
ID=50721696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014111201A Active JP5837645B2 (ja) | 2013-06-03 | 2014-05-29 | 回路遮断器用検出回路 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9190828B2 (ja) |
EP (1) | EP2811605B1 (ja) |
JP (1) | JP5837645B2 (ja) |
KR (1) | KR101476685B1 (ja) |
CN (1) | CN104218523B (ja) |
ES (1) | ES2773975T3 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105137151A (zh) * | 2015-08-20 | 2015-12-09 | 张涵青 | 一种新型的智能配网电力信号传感器 |
US9954351B2 (en) * | 2015-10-26 | 2018-04-24 | Leach International Corporation | System for implementation of I2t trip characteristic |
CN105759791B (zh) * | 2016-04-22 | 2018-05-04 | 浙江科能达电气有限公司 | 断路器智能控制器及基于其的实时检测方法 |
CN106443151B (zh) * | 2016-06-30 | 2019-06-25 | 上海景格科技股份有限公司 | 一种线路分析仪 |
KR101956571B1 (ko) * | 2017-12-01 | 2019-03-11 | 엘에스산전 주식회사 | 누전 차단 장치 |
JP7293151B2 (ja) * | 2020-03-03 | 2023-06-19 | 株式会社東芝 | 電流検出回路および電流検出システム |
US20230411951A1 (en) * | 2022-06-21 | 2023-12-21 | Dallen Tate Leavitt | Self-protecting circuit breaker |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US4945445A (en) * | 1988-09-29 | 1990-07-31 | Gentron Corporation | Current sense circuit |
US5856902A (en) * | 1996-07-09 | 1999-01-05 | Fuji Electric Co., Ltd. | Earth leakage breaker |
JP3384277B2 (ja) * | 1997-03-26 | 2003-03-10 | 三菱電機株式会社 | オフセット補正回路 |
US20020075613A1 (en) * | 2000-12-20 | 2002-06-20 | Mason Henry Hall | Power drop out compensation circuit |
KR100541081B1 (ko) * | 2003-06-24 | 2006-01-11 | 삼성전기주식회사 | 전자 나침반용 신호 처리기 |
KR100567815B1 (ko) * | 2004-07-07 | 2006-04-05 | 한국전력공사 | 직류 선로의 고장 판별 장치 |
US7113016B2 (en) * | 2004-12-11 | 2006-09-26 | Muchip Co., Ltd | Device for DC offset cancellation |
KR100760331B1 (ko) * | 2006-03-30 | 2007-09-20 | 신성산전주식회사 | 고속 고장구간 자동 차단장치 |
US7463465B2 (en) | 2006-12-28 | 2008-12-09 | General Electric Company | Series arc fault current interrupters and methods |
AU2008280932B8 (en) * | 2007-07-24 | 2011-02-24 | Panasonic Electric Works Co., Ltd. | Charging monitor |
JP5119063B2 (ja) * | 2008-07-02 | 2013-01-16 | パナソニック株式会社 | 漏電検出機能付配線器具 |
KR101068718B1 (ko) * | 2009-05-21 | 2011-09-28 | 엘에스산전 주식회사 | 회로차단기용 이상전류 검출회로 |
US8344724B2 (en) * | 2009-11-06 | 2013-01-01 | Massachusetts Institute Of Technology | Non-intrusive monitoring of power and other parameters |
CN202305715U (zh) * | 2011-08-13 | 2012-07-04 | 武汉长海电气科技开发有限公司 | 故障快速识别装置 |
-
2013
- 2013-06-03 KR KR1020130063592A patent/KR101476685B1/ko active IP Right Grant
-
2014
- 2014-05-16 EP EP14168642.8A patent/EP2811605B1/en active Active
- 2014-05-16 ES ES14168642T patent/ES2773975T3/es active Active
- 2014-05-19 US US14/281,417 patent/US9190828B2/en active Active
- 2014-05-29 JP JP2014111201A patent/JP5837645B2/ja active Active
- 2014-06-03 CN CN201410242780.0A patent/CN104218523B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
EP2811605B1 (en) | 2019-12-04 |
CN104218523B (zh) | 2017-05-17 |
ES2773975T3 (es) | 2020-07-15 |
JP2014236004A (ja) | 2014-12-15 |
US9190828B2 (en) | 2015-11-17 |
US20140354288A1 (en) | 2014-12-04 |
KR20140142047A (ko) | 2014-12-11 |
EP2811605A1 (en) | 2014-12-10 |
CN104218523A (zh) | 2014-12-17 |
KR101476685B1 (ko) | 2014-12-26 |
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