CH625917A5 - - Google Patents
Download PDFInfo
- Publication number
- CH625917A5 CH625917A5 CH97178A CH97178A CH625917A5 CH 625917 A5 CH625917 A5 CH 625917A5 CH 97178 A CH97178 A CH 97178A CH 97178 A CH97178 A CH 97178A CH 625917 A5 CH625917 A5 CH 625917A5
- Authority
- CH
- Switzerland
- Prior art keywords
- current
- overload protection
- delay
- protection circuit
- resistor
- Prior art date
Links
Classifications
-
- 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
- Protection Of Generators And Motors (AREA)
- Emergency Protection Circuit Devices (AREA)
- Control Of Multiple Motors (AREA)
- Motor And Converter Starters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772704820 DE2704820A1 (de) | 1977-02-05 | 1977-02-05 | Ueberlastschutzschaltung fuer elektrische motoren |
Publications (1)
Publication Number | Publication Date |
---|---|
CH625917A5 true CH625917A5 (fr) | 1981-10-15 |
Family
ID=6000428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH97178A CH625917A5 (fr) | 1977-02-05 | 1978-01-30 |
Country Status (6)
Country | Link |
---|---|
US (1) | US4156262A (fr) |
JP (2) | JPS53124742A (fr) |
CH (1) | CH625917A5 (fr) |
DE (1) | DE2704820A1 (fr) |
FR (1) | FR2379929A1 (fr) |
GB (1) | GB1598261A (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4219859A (en) * | 1979-01-11 | 1980-08-26 | Rte Corporation | Multiple range inverse time overcurrent relay |
US4240072A (en) * | 1979-03-19 | 1980-12-16 | Research Products Corporation | Load indicator for an air cleaner |
US4331999A (en) * | 1980-04-15 | 1982-05-25 | Westinghouse Electric Corp. | Circuit interrupter with digital trip unit and power supply |
US4764744A (en) * | 1987-12-17 | 1988-08-16 | General Electric Company | Overload relay having adjustably gapped current transformers |
US4839770A (en) * | 1988-01-25 | 1989-06-13 | S&C Electric Company | Control circuit with validity-determining arrangement |
DE8904581U1 (de) * | 1989-04-12 | 1989-05-24 | EUBA-Antriebstechnik Eller GmbH, 4300 Essen | Motorüberwachungsschalter |
JP4823499B2 (ja) * | 2004-07-23 | 2011-11-24 | 勝行 戸津 | ブラシレスモータ駆動回転工具の制御方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB617417A (en) * | 1946-05-17 | 1949-02-07 | Harold Honey | A thermionic relay for the protection of electrical circuits |
GB981752A (en) * | 1960-06-09 | 1965-01-27 | English Electric Co Ltd | Improvements in or relating to electrical protective relays |
GB1062154A (en) * | 1962-09-14 | 1967-03-15 | English Electric Co Ltd | Polyphase protective relay circuits |
FR1477145A (fr) * | 1965-04-23 | 1967-04-14 | Reyrolle A & Co Ltd | Perfectionnements aux circuits électriques sensibles aux intensités |
US3544846A (en) * | 1968-02-28 | 1970-12-01 | Westinghouse Electric Corp | Time delay circuit for electric network protection |
IL38457A (en) * | 1971-12-27 | 1975-02-10 | Hagiz G | Overload interrupt systems for three-phase induction motor |
CA1006606A (en) * | 1972-05-22 | 1977-03-08 | Katsuyuki Totsu | Motor-driven screw driver with automatic stopping means |
US3846675A (en) * | 1973-01-30 | 1974-11-05 | Westinghouse Electric Corp | Molded case circuit breakers utilizing saturating current transformers |
FR2266344A1 (en) * | 1974-03-28 | 1975-10-24 | Do Pk | Electric motor protection cct. - has rectifier in one current supply phase for measuring current through motor |
FR2342571A1 (fr) * | 1976-02-24 | 1977-09-23 | Klaxon Sa | Dispositif de securite contre les surintensites d'un moteur electrique a courant continu |
-
1977
- 1977-02-05 DE DE19772704820 patent/DE2704820A1/de not_active Withdrawn
-
1978
- 1978-01-30 CH CH97178A patent/CH625917A5/de not_active IP Right Cessation
- 1978-02-01 GB GB4021/78A patent/GB1598261A/en not_active Expired
- 1978-02-02 FR FR7802885A patent/FR2379929A1/fr active Granted
- 1978-02-03 JP JP1062778A patent/JPS53124742A/ja active Pending
- 1978-02-03 US US05/875,078 patent/US4156262A/en not_active Expired - Lifetime
-
1981
- 1981-12-23 JP JP1981190946U patent/JPS639226Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2379929B1 (fr) | 1982-11-12 |
US4156262A (en) | 1979-05-22 |
DE2704820A1 (de) | 1978-08-17 |
FR2379929A1 (fr) | 1978-09-01 |
JPS57118628U (fr) | 1982-07-23 |
GB1598261A (en) | 1981-09-16 |
JPS53124742A (en) | 1978-10-31 |
JPS639226Y2 (fr) | 1988-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69015639T2 (de) | Fehlerstromschutzschalter. | |
DE744451C (de) | Differentialschutzeinrichtung | |
EP0136254B1 (fr) | Alimentation d'énergie pour un déclencheur par excès de courant | |
DE1463138A1 (de) | Elektrisches Schutzrelais | |
CH625917A5 (fr) | ||
DE2814904C3 (de) | Triac-Schaltungsanordnung | |
DE2731453C3 (de) | Erdschlußdetektor | |
DE2626620A1 (de) | Schaltungsanordnung zur ermittlung eines wechselstroms | |
DE3738493C2 (de) | Fehlerortungseinrichtung | |
DE1613740A1 (de) | UEberwachungsstromkreis | |
EP2994988B1 (fr) | Alimentation en énergie, à l'intérieur d'un appareil, d'un dispositif | |
DE3527000A1 (de) | Schaltnetzteil | |
CH634446A5 (de) | Gleichstromquelle. | |
DE19857739A1 (de) | Fehlerstromschutzschaltungsanordnung | |
DE3942427A1 (de) | Schaltungsanordnung zum aufbau unterbrechungsfreier stromversorgungseinheiten | |
DE2532206A1 (de) | Schaltungsanordnung zur abschaltung eines drehstromverbrauchers bei unsymmetrischer leistungsaufnahme | |
DE2303553A1 (de) | Elektronische schaltvorrichtung | |
DE3214367C2 (fr) | ||
DE1538314C (de) | Stromversorgungsanlage für Fahrzeuge | |
DE69315753T2 (de) | Schaltung für Fehlerstromschutzschalter | |
CH588780A5 (en) | Differential current relay supervising a protected zone - has differential transformer and compares rectified total and differential current | |
DE740260C (de) | Einrichtung zur Regelung von Gleichrichtern | |
DE1298626B (de) | Gleichstromrelais fuer Wechselstrombetrieb | |
DE1935505A1 (de) | Unterspannungsschutz fuer ein- oder mehrphasige Wechselspannungssysteme | |
DE2100460C3 (de) | Schaltungsanordnung zum Schutz von steuerbaren Halbleitergleichrichtern innerhalb eines mit Wechselstrom gespeisten Gleichrichtemetzgerätes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |