IN167725B - - Google Patents
Info
- Publication number
- IN167725B IN167725B IN662/CAL/87A IN662CA1987A IN167725B IN 167725 B IN167725 B IN 167725B IN 662CA1987 A IN662CA1987 A IN 662CA1987A IN 167725 B IN167725 B IN 167725B
- Authority
- IN
- India
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- 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
- H02H7/08—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 motors
- H02H7/0833—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 motors for electric motors with control arrangements
-
- 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
- H02H7/08—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 motors
- H02H7/093—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 motors against increase beyond, or decrease below, a predetermined level of rotational speed
-
- 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
- H02H7/08—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 motors
- H02H7/085—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 motors against excessive load
- H02H7/0856—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 motors against excessive load characterised by the protection measure taken
- H02H7/0858—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 motors against excessive load characterised by the protection measure taken by reversing, cycling or reducing the power supply to the motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Generators And Motors (AREA)
- Control Of Ac Motors In General (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US93535386A | 1986-11-26 | 1986-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN167725B true IN167725B (US07282526-20071016-C00003.png) | 1990-12-15 |
Family
ID=25466967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN662/CAL/87A IN167725B (US07282526-20071016-C00003.png) | 1986-11-26 | 1987-08-21 |
Country Status (12)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2745691B2 (ja) * | 1988-08-30 | 1998-04-28 | 富士電機株式会社 | 電圧形インバータの電流制限方式 |
| AU715083B2 (en) * | 1996-12-03 | 2000-01-13 | Kabushiki Kaisha Toshiba | Electric power system protection and control system and distributed control system |
| JP4287070B2 (ja) * | 2001-04-02 | 2009-07-01 | 矢崎総業株式会社 | パワーウインド挟み込み防止装置 |
| DE102008029679B4 (de) * | 2008-06-23 | 2016-01-21 | Eaton Industries Gmbh | System, Verfahren und elektronische Schaltung für mindestens eine elektronische Schaltungseinheit |
| CN104682684B (zh) * | 2015-03-27 | 2018-02-16 | 北京纵横机电技术开发公司 | 一种变流器及其过流过压保护方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3775651A (en) * | 1971-12-17 | 1973-11-27 | Gen Electric | Power system overcurrent protection means utilizing voltage adjustment |
| JPS5928151B2 (ja) * | 1978-11-04 | 1984-07-11 | ファナック株式会社 | 電動機駆動用インバ−タ回路の保護方式 |
| US4307793A (en) * | 1979-12-28 | 1981-12-29 | Westinghouse Electric Corp. | Elevator system |
| DE3109482A1 (de) * | 1981-03-12 | 1982-09-23 | Siemens AG, 1000 Berlin und 8000 München | Kurzschlussschutzvorrichtung fuer einen gleichstromsteller |
| JPS5928151A (ja) * | 1982-08-10 | 1984-02-14 | Asahi Chem Ind Co Ltd | 後活性型乾式銀塩感光材料 |
| US4623826A (en) * | 1984-07-31 | 1986-11-18 | John Brown Inc. | Stall protection circuit for brushless motor control |
| GB2167251B (en) * | 1984-11-21 | 1988-10-05 | Barry Wayne Williams | Induction motor drive circuits |
-
1986
- 1986-08-12 MX MX7720A patent/MX160152A/es unknown
-
1987
- 1987-07-30 KR KR1019870008313A patent/KR880006816A/ko not_active IP Right Cessation
- 1987-08-21 IN IN662/CAL/87A patent/IN167725B/en unknown
- 1987-09-14 CA CA000546793A patent/CA1318016C/en not_active Expired - Fee Related
- 1987-09-23 AU AU78898/87A patent/AU601492B2/en not_active Ceased
- 1987-10-15 BR BR8705525A patent/BR8705525A/pt unknown
- 1987-10-23 ES ES198787309413T patent/ES2030737T3/es not_active Expired - Lifetime
- 1987-10-23 EP EP87309413A patent/EP0275633B1/en not_active Expired - Lifetime
- 1987-10-23 DE DE8787309413T patent/DE3778679D1/de not_active Expired - Fee Related
- 1987-11-25 JP JP62295415A patent/JPH0650931B2/ja not_active Expired - Lifetime
- 1987-11-26 CN CN87107988A patent/CN1010152B/zh not_active Expired
-
1992
- 1992-10-08 HK HK775/92A patent/HK77592A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN87107988A (zh) | 1988-08-03 |
| KR880006816A (ko) | 1988-07-25 |
| JPH0650931B2 (ja) | 1994-06-29 |
| AU7889887A (en) | 1988-06-02 |
| BR8705525A (pt) | 1988-06-28 |
| EP0275633A1 (en) | 1988-07-27 |
| AU601492B2 (en) | 1990-09-13 |
| EP0275633B1 (en) | 1992-04-29 |
| ES2030737T3 (es) | 1992-11-16 |
| CA1318016C (en) | 1993-05-18 |
| HK77592A (en) | 1992-10-16 |
| MX160152A (es) | 1989-12-13 |
| CN1010152B (zh) | 1990-10-24 |
| JPS63148819A (ja) | 1988-06-21 |
| DE3778679D1 (de) | 1992-06-04 |
