ZA77581B - Solid state overload relay transformer circuit - Google Patents
Solid state overload relay transformer circuitInfo
- Publication number
- ZA77581B ZA77581B ZA770581A ZA77581A ZA77581B ZA 77581 B ZA77581 B ZA 77581B ZA 770581 A ZA770581 A ZA 770581A ZA 77581 A ZA77581 A ZA 77581A ZA 77581 B ZA77581 B ZA 77581B
- Authority
- ZA
- South Africa
- Prior art keywords
- solid state
- transformer circuit
- overload relay
- state overload
- relay transformer
- Prior art date
Links
Classifications
-
- 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
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
-
- 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
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
-
- 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
- H02H3/083—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 for three-phase systems
-
- 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
- H02H3/093—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 with timing means
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/654,423 US4048663A (en) | 1977-10-10 | 1976-02-02 | Solid state overload relay transformer circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA77581B true ZA77581B (en) | 1977-12-28 |
Family
ID=24624784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA770581A ZA77581B (en) | 1976-02-02 | 1977-02-02 | Solid state overload relay transformer circuit |
Country Status (6)
Country | Link |
---|---|
AU (1) | AU515384B2 (xx) |
DE (1) | DE2704337A1 (xx) |
FR (1) | FR2339979A1 (xx) |
GB (1) | GB1555214A (xx) |
IT (1) | IT1085308B (xx) |
ZA (1) | ZA77581B (xx) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2920055A1 (de) * | 1979-05-18 | 1980-11-27 | Barmag Barmer Maschf | Antriebseinrichtung, bestehend aus mehreren drehstrommotoren |
FR2544352B2 (fr) * | 1982-12-30 | 1986-01-24 | Esswein Sa | Lave-linge a energie de brassage du linge variable en fonction du couple resistant s'opposant au moteur d'entrainement du tambour |
EP0090716B1 (fr) * | 1982-03-26 | 1986-02-26 | Esswein S.A. | Lave-linge à moteur d'entraînement du tambour de puissance réduite |
DE10148815A1 (de) * | 2001-10-02 | 2003-04-10 | Abb Patent Gmbh | Verfahren und Einrichtung zur Stromwertermittlung unter Einsatz eines Stromwandlers, welcher im Bereich der Kernsättigung arbeitet |
DE102020125923A1 (de) | 2020-10-04 | 2022-04-07 | EPA GmbH | Absorptionsfilter sowie Verfahren zur Herstellung eines solchen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1961686B2 (de) * | 1969-12-02 | 1979-05-31 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | UEberstromschutzrelais fuer Wechselstromnetze |
DE2150948B2 (en) * | 1971-10-13 | 1975-04-03 | Josef Dumser Schaltanlagenbau, 6745 Offenbach | Temp.-independent current limiter for three-phase supplies - compares phase-line signal evaluators output with remotely-set reference |
GB1459176A (en) * | 1972-11-01 | 1976-12-22 | Square D Co | Overcurrent protective apparatus for a power circuit |
US3846675A (en) * | 1973-01-30 | 1974-11-05 | Westinghouse Electric Corp | Molded case circuit breakers utilizing saturating current transformers |
US3875464A (en) * | 1973-10-10 | 1975-04-01 | Westinghouse Electric Corp | Solid state overload relay |
-
1977
- 1977-02-02 ZA ZA770581A patent/ZA77581B/xx unknown
- 1977-02-02 DE DE19772704337 patent/DE2704337A1/de active Granted
- 1977-02-02 GB GB4297/77A patent/GB1555214A/en not_active Expired
- 1977-02-02 IT IT19883/77A patent/IT1085308B/it active
- 1977-02-02 FR FR7702840A patent/FR2339979A1/fr active Granted
- 1977-10-10 AU AU29514/77A patent/AU515384B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT1085308B (it) | 1985-05-28 |
GB1555214A (en) | 1979-11-07 |
AU515384B2 (en) | 1981-04-02 |
AU2951477A (en) | 1979-04-26 |
DE2704337A1 (de) | 1977-08-04 |
FR2339979A1 (fr) | 1977-08-26 |
FR2339979B1 (xx) | 1984-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5344884A (en) | Circuit breaker | |
ZA772860B (en) | Bimetallic circuit breaker | |
JPS5385377A (en) | Circuit breaker | |
AU508152B2 (en) | Circuit breaker | |
GB1555627A (en) | Circuit breaker | |
GB1546745A (en) | Circuit breakers | |
JPS52111645A (en) | Overcurrent relay | |
ZA77581B (en) | Solid state overload relay transformer circuit | |
AU2496077A (en) | Circuit breaker | |
JPS531874A (en) | Circuit breaker | |
JPS531868A (en) | Circuit breaker | |
AU2306177A (en) | Circuit breaker | |
JPS52135075A (en) | Heattactuating overload relay | |
JPS52110477A (en) | Circuit breaker | |
JPS5335140A (en) | Circuit breaker tripping unit | |
JPS52111646A (en) | Overcurrent relay | |
JPS52111644A (en) | Overcurrent relay | |
JPS5341756A (en) | Multiifunctional relay circuit | |
JPS52129978A (en) | Circuit breaker | |
JPS5362183A (en) | Doubleepole circuit breaker | |
JPS5384160A (en) | Solid relay circuit | |
JPS5314362A (en) | Reset circuit for keep relays | |
JPS52110474A (en) | Circuit breaker | |
JPS52109171A (en) | Circuit breaker | |
JPS5384184A (en) | Circuit breaker |