CH275946A - Device for protecting three-phase motors against overcurrents. - Google Patents
Device for protecting three-phase motors against overcurrents.Info
- Publication number
- CH275946A CH275946A CH275946DA CH275946A CH 275946 A CH275946 A CH 275946A CH 275946D A CH275946D A CH 275946DA CH 275946 A CH275946 A CH 275946A
- Authority
- CH
- Switzerland
- Prior art keywords
- protecting
- phase motors
- against overcurrents
- motors against
- overcurrents
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
- H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR949806T | 1947-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH275946A true CH275946A (en) | 1951-06-15 |
Family
ID=9474721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH275946D CH275946A (en) | 1947-06-26 | 1948-05-20 | Device for protecting three-phase motors against overcurrents. |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH275946A (en) |
FR (1) | FR949806A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1130912B (en) * | 1959-10-03 | 1962-06-07 | Elektra Tailfingen | Thermal relay for protecting three-phase consumers |
DE1197169B (en) * | 1961-10-26 | 1965-07-22 | Selco Elettro Costruzioni S P | Thermal relay that responds to the difference in current in the individual phases, especially for three-phase current |
DE1199869B (en) * | 1962-01-12 | 1965-09-02 | Elektro App Werke Berlin Trept | Arrangement for setting the tripping device of a bimetal relay |
DE1463424B1 (en) * | 1963-09-06 | 1970-01-15 | Metzenauer & Jung Gmbh | Trip bar for a multi-phase thermal overcurrent relay |
-
1947
- 1947-06-26 FR FR949806D patent/FR949806A/en not_active Expired
-
1948
- 1948-05-20 CH CH275946D patent/CH275946A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1130912B (en) * | 1959-10-03 | 1962-06-07 | Elektra Tailfingen | Thermal relay for protecting three-phase consumers |
DE1197169B (en) * | 1961-10-26 | 1965-07-22 | Selco Elettro Costruzioni S P | Thermal relay that responds to the difference in current in the individual phases, especially for three-phase current |
DE1199869B (en) * | 1962-01-12 | 1965-09-02 | Elektro App Werke Berlin Trept | Arrangement for setting the tripping device of a bimetal relay |
DE1463424B1 (en) * | 1963-09-06 | 1970-01-15 | Metzenauer & Jung Gmbh | Trip bar for a multi-phase thermal overcurrent relay |
Also Published As
Publication number | Publication date |
---|---|
FR949806A (en) | 1949-09-09 |
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