JPS4926723A - - Google Patents
Info
- Publication number
- JPS4926723A JPS4926723A JP48031726A JP3172673A JPS4926723A JP S4926723 A JPS4926723 A JP S4926723A JP 48031726 A JP48031726 A JP 48031726A JP 3172673 A JP3172673 A JP 3172673A JP S4926723 A JPS4926723 A JP S4926723A
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
- H02H6/005—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images using digital thermal images
-
- 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
-
- 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
Landscapes
- Protection Of Generators And Motors (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Direct Current Motors (AREA)
- Motor And Converter Starters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH757172A CH534444A (de) | 1972-05-23 | 1972-05-23 | Elektronisches Motorschutzrelais mit stromabhängiger Auslösung |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4926723A true JPS4926723A (ja) | 1974-03-09 |
Family
ID=4327242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP48031726A Pending JPS4926723A (ja) | 1972-05-23 | 1973-03-19 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3808503A (ja) |
JP (1) | JPS4926723A (ja) |
AT (1) | AT320790B (ja) |
CH (1) | CH534444A (ja) |
DE (1) | DE2306791A1 (ja) |
ES (1) | ES411582A1 (ja) |
GB (1) | GB1423748A (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50154912A (ja) * | 1974-06-03 | 1975-12-13 | ||
JPS5330149U (ja) * | 1976-08-23 | 1978-03-15 | ||
JPS5595401U (ja) * | 1979-12-28 | 1980-07-02 | ||
JPS6052755U (ja) * | 1983-09-19 | 1985-04-13 | 株式会社 ナカヨ通信機 | 電話機 |
JPS60116257A (ja) * | 1983-11-29 | 1985-06-22 | Nippon Telegr & Teleph Corp <Ntt> | 電話機 |
JPS60160760A (ja) * | 1984-02-01 | 1985-08-22 | Matsushita Electric Ind Co Ltd | 電話機 |
JPS60139363U (ja) * | 1984-02-27 | 1985-09-14 | 株式会社 宮川製作所 | 電話機の送受器掛け機構 |
JPS60139364U (ja) * | 1984-02-27 | 1985-09-14 | 株式会社 宮川製作所 | 電話機の送受器掛け機構 |
JPS6157736U (ja) * | 1984-09-21 | 1986-04-18 | ||
JPS61107255U (ja) * | 1984-12-17 | 1986-07-08 | ||
JPH08141139A (ja) * | 1994-11-16 | 1996-06-04 | Masayuki Ishikawa | 詰の碁の練習用具 |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2338918C3 (de) * | 1973-08-01 | 1982-06-03 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Auslösegerät |
US3942074A (en) * | 1974-09-27 | 1976-03-02 | General Electric Company | Static overcurrent relay |
CH573180A5 (ja) * | 1974-10-01 | 1976-02-27 | Sprecher & Schuh Ag | |
CA1010574A (en) * | 1974-12-02 | 1977-05-17 | Canadian General Electric Company Limited | Temperature monitoring of semiconductors |
CA1059629A (en) * | 1975-12-18 | 1979-07-31 | Canadian General Electric Company Limited | Overtemperature protective circuit for switching devices |
CH623432A5 (en) * | 1978-02-21 | 1981-05-29 | Sprecher & Schuh Ag | Electronic protection relay having electronic heat modelling of the electrical apparatus or machine which is to be protected |
CH643408A5 (en) * | 1978-07-11 | 1984-05-30 | Sprecher & Schuh Ag | Motor protection circuit |
FR2476923A1 (fr) * | 1979-12-07 | 1981-08-28 | Telemecanique Electrique | Dispositif de simulation d'un phenomene variable dans le temps avec une constante de temps elevee, notamment la temperature d'une charge electrique |
FR2488458A1 (fr) * | 1980-08-04 | 1982-02-12 | Telemecanique Electrique | Circuit de protection thermique d'un moteur electrique comportant deux organes a constante de temps |
DE3128410A1 (de) * | 1981-07-17 | 1983-02-03 | Hilti AG, 9494 Schaan | Bewertungsschaltung fuer ein elektrisches drehmomentsignal an einer bohrmaschine |
US4413213A (en) * | 1981-11-04 | 1983-11-01 | Reliance Electric Company | Electronic motor protection for variable speed motors |
GB2140633A (en) * | 1983-04-29 | 1984-11-28 | Plessey Co Plc | Load tripping circuits |
US4858053A (en) * | 1985-11-01 | 1989-08-15 | Square D Company | Operational amplifier having an improved feedback system including an integrator having a hurry-up circuit, and an electric motor control using the same for inverse trip selection |
DE4109867C2 (de) * | 1991-03-26 | 1996-05-30 | Bosch Gmbh Robert | Schutzeinrichtung für Elektromotoren |
US5668692A (en) * | 1993-10-27 | 1997-09-16 | Square D Company | Self-powered circuit interruption arrangement |
US5598315A (en) * | 1993-10-27 | 1997-01-28 | Square D Company | Self-power tripping relay with balanced power supply current and measurement current |
FR2715009B1 (fr) * | 1994-01-10 | 1996-03-08 | Telemecanique | Dispositif électronique de protection thermique. |
FR2773006B1 (fr) * | 1997-12-19 | 2003-08-15 | Schneider Electric Sa | Dispositif electronique de modelisation de l'etat thermique d'un moteur |
US7800872B2 (en) * | 2006-03-20 | 2010-09-21 | Mitsubishi Electric Corporation | Switch-state monitoring device |
CN100574031C (zh) * | 2007-04-06 | 2009-12-23 | 广州金升阳科技有限公司 | 一种电源变换器输出保护电路 |
RU2499340C2 (ru) * | 2012-02-27 | 2013-11-20 | Общество с ограниченной ответственностью "Научно-производственный центр "Судовые электротехнические системы" (ООО "НПЦ "СЭС") | Устройство тепловой защиты двигателя |
RU2498472C1 (ru) * | 2012-03-29 | 2013-11-10 | Общество с ограниченной ответственностью "Научно-производственный центр "Судовые электротехнические системы" (ООО "НПЦ "СЭС") | Устройство тепловой защиты электродвигателя |
ES2633300T3 (es) * | 2012-11-08 | 2017-09-20 | Miele & Cie. Kg | Convertidor de frecuencia para operar un motor eléctrico, sistema mecatrónico y aparato eléctrico |
RU184112U1 (ru) * | 2018-03-19 | 2018-10-16 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Костромская государственная сельскохозяйственная академия" | Устройство для сигнализации перегрузки нескольких электродвигателей |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH375071A (de) * | 1960-02-03 | 1964-02-15 | Bbc Brown Boveri & Cie | Ein thermisches Abbild darstellende Schutzschaltung für ein elektrisches Gerät |
JPS433141Y1 (ja) * | 1965-11-09 | 1968-02-09 | ||
US3643130A (en) * | 1969-05-31 | 1972-02-15 | Siemens Ag | Supervisory device for rectifier having semiconductor valve-type components |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105920A (en) * | 1961-09-15 | 1963-10-01 | Gen Electric | Protective device |
US3351814A (en) * | 1961-10-05 | 1967-11-07 | Mc Graw Edison Co | Electronic time delay devices |
BE628958A (ja) * | 1962-02-28 | |||
US3262017A (en) * | 1962-11-01 | 1966-07-19 | Allis Chalmers Mfg Co | Static overcurrent tripping device |
US3312867A (en) * | 1963-04-26 | 1967-04-04 | Westinghouse Electric Corp | Static time-overcurrent relays |
US3317795A (en) * | 1964-04-21 | 1967-05-02 | Gen Electric | Overcurrent protective means |
FR1407271A (fr) * | 1964-06-20 | 1965-07-30 | Electronique Et D Automatique | Dispositif de protection des circuits électriques |
US3319127A (en) * | 1964-10-12 | 1967-05-09 | Ite Circuit Breaker Ltd | Static overcurrent relay |
US3418529A (en) * | 1966-06-09 | 1968-12-24 | Mc Graw Edison Co | Control circuit for protective device |
US3531689A (en) * | 1968-06-10 | 1970-09-29 | Forney Eng Co | Solid state overcurrent relay |
US3634871A (en) * | 1970-04-15 | 1972-01-11 | Cgr Medical Corp | Heat-sensing circuit |
-
1972
- 1972-05-23 CH CH757172A patent/CH534444A/de not_active IP Right Cessation
-
1973
- 1973-02-12 DE DE2306791A patent/DE2306791A1/de not_active Ceased
- 1973-02-13 ES ES411582A patent/ES411582A1/es not_active Expired
- 1973-03-19 JP JP48031726A patent/JPS4926723A/ja active Pending
- 1973-04-13 GB GB1801073A patent/GB1423748A/en not_active Expired
- 1973-05-08 AT AT405973A patent/AT320790B/de not_active IP Right Cessation
- 1973-05-11 US US00360374A patent/US3808503A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH375071A (de) * | 1960-02-03 | 1964-02-15 | Bbc Brown Boveri & Cie | Ein thermisches Abbild darstellende Schutzschaltung für ein elektrisches Gerät |
JPS433141Y1 (ja) * | 1965-11-09 | 1968-02-09 | ||
US3643130A (en) * | 1969-05-31 | 1972-02-15 | Siemens Ag | Supervisory device for rectifier having semiconductor valve-type components |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50154912A (ja) * | 1974-06-03 | 1975-12-13 | ||
JPS5330149U (ja) * | 1976-08-23 | 1978-03-15 | ||
JPS5595401U (ja) * | 1979-12-28 | 1980-07-02 | ||
JPS5628804Y2 (ja) * | 1979-12-28 | 1981-07-09 | ||
JPS6052755U (ja) * | 1983-09-19 | 1985-04-13 | 株式会社 ナカヨ通信機 | 電話機 |
JPH0225585B2 (ja) * | 1983-11-29 | 1990-06-04 | Nippon Denshin Denwa Kk | |
JPS60116257A (ja) * | 1983-11-29 | 1985-06-22 | Nippon Telegr & Teleph Corp <Ntt> | 電話機 |
JPS60160760A (ja) * | 1984-02-01 | 1985-08-22 | Matsushita Electric Ind Co Ltd | 電話機 |
JPS60139364U (ja) * | 1984-02-27 | 1985-09-14 | 株式会社 宮川製作所 | 電話機の送受器掛け機構 |
JPS60139363U (ja) * | 1984-02-27 | 1985-09-14 | 株式会社 宮川製作所 | 電話機の送受器掛け機構 |
JPH036053Y2 (ja) * | 1984-02-27 | 1991-02-15 | ||
JPS6157736U (ja) * | 1984-09-21 | 1986-04-18 | ||
JPH039410Y2 (ja) * | 1984-09-21 | 1991-03-08 | ||
JPS61107255U (ja) * | 1984-12-17 | 1986-07-08 | ||
JPH08141139A (ja) * | 1994-11-16 | 1996-06-04 | Masayuki Ishikawa | 詰の碁の練習用具 |
Also Published As
Publication number | Publication date |
---|---|
CH534444A (de) | 1973-02-28 |
DE2306791A1 (de) | 1973-12-06 |
AT320790B (de) | 1975-02-25 |
ES411582A1 (es) | 1976-01-01 |
US3808503A (en) | 1974-04-30 |
GB1423748A (en) | 1976-02-04 |