ZA77910B - An improvement in or relating to circuit breaker with improved means having a high rating shunt trip - Google Patents
An improvement in or relating to circuit breaker with improved means having a high rating shunt tripInfo
- Publication number
- ZA77910B ZA77910B ZA770910A ZA77910A ZA77910B ZA 77910 B ZA77910 B ZA 77910B ZA 770910 A ZA770910 A ZA 770910A ZA 77910 A ZA77910 A ZA 77910A ZA 77910 B ZA77910 B ZA 77910B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- improvement
- circuit breaker
- improved means
- shunt trip
- 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
-
- 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
- H01H2083/203—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 with shunt trip circuits, e.g. NC contact in an undervoltage coil circuit
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/665,598 US4025821A (en) | 1976-03-10 | 1976-03-10 | Circuit breaker with improved trip means having a high rating shunt trip |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA77910B true ZA77910B (en) | 1977-12-28 |
Family
ID=24670754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA770910A ZA77910B (en) | 1976-03-10 | 1977-02-15 | An improvement in or relating to circuit breaker with improved means having a high rating shunt trip |
Country Status (13)
Country | Link |
---|---|
US (1) | US4025821A (xx) |
JP (2) | JPS52109170A (xx) |
AU (1) | AU512451B2 (xx) |
BE (1) | BE852292A (xx) |
CA (1) | CA1068391A (xx) |
CH (1) | CH613808A5 (xx) |
DE (1) | DE2708519A1 (xx) |
ES (1) | ES226997Y (xx) |
GB (1) | GB1555627A (xx) |
IN (1) | IN146387B (xx) |
NZ (1) | NZ183454A (xx) |
PH (1) | PH12603A (xx) |
ZA (1) | ZA77910B (xx) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4089033A (en) * | 1977-03-04 | 1978-05-09 | General Electric Company | High speed bus differential relay |
US4788621A (en) * | 1987-12-16 | 1988-11-29 | General Electric Company | Molded case circuit breaker multiple accessory unit |
US4806893A (en) * | 1988-03-03 | 1989-02-21 | General Electric Company | Molded case circuit breaker actuator-accessory unit |
US5331501A (en) * | 1992-09-30 | 1994-07-19 | Westinghouse Electric Corp. | Electrical switching apparatus with digital trip unit and memory reset |
US5428495A (en) * | 1992-09-30 | 1995-06-27 | Eaton Corporation | Electrical switching apparatus with digital trip unit and automatic frequency selection |
JPH0730550U (ja) * | 1993-11-12 | 1995-06-06 | 烈超 林 | 漏電検出器 |
DE19514314A1 (de) * | 1995-04-18 | 1996-10-24 | Sace Spa | Automatischer Niederspannungsschalter mit eingebauter Öffnungseinrichtung |
FR2770336B1 (fr) * | 1997-10-24 | 1999-12-03 | Schneider Electric Sa | Dispositif de commande pour appareil contacteur-disjoncteur |
EP2823499B1 (en) * | 2012-03-06 | 2017-06-14 | ABB Schweiz AG | Arc-jump circuit breaker and method of circuit breaking |
DE102015119390B4 (de) | 2015-11-11 | 2020-06-10 | Long Men Technology Co., Ltd. | Eigensicheres System zum schnellen Abschalten von Hoch- und Höchstspannung |
US10784672B2 (en) * | 2018-03-28 | 2020-09-22 | Eaton Intelligent Power Limited | Circuit interrupter with self-test circuit and method of operating a circuit interrupter |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3252052A (en) * | 1963-08-23 | 1966-05-17 | Jacuzzi Bros Inc | Leakage detection and control circuit |
US3365617A (en) * | 1964-03-25 | 1968-01-23 | Texas Instruments Inc | Protective means for electrical circuits |
US3423636A (en) * | 1966-07-29 | 1969-01-21 | Edwards Co | Surge limiting system |
JPS4920040B1 (xx) * | 1969-03-25 | 1974-05-22 | ||
US3579038A (en) * | 1969-08-14 | 1971-05-18 | Square D Co | Electrical fault protection system |
US3818276A (en) * | 1972-07-17 | 1974-06-18 | Mc Graw Edison Co | Circuit breaker antipumping control system |
US3808567A (en) * | 1973-01-30 | 1974-04-30 | A Maier | Circuit breaker with improved resettable latch and trip means |
US3783423A (en) * | 1973-01-30 | 1974-01-01 | Westinghouse Electric Corp | Circuit breaker with improved flux transfer magnetic actuator |
US3826951A (en) * | 1973-01-30 | 1974-07-30 | Westinghouse Electric Corp | Circuit breaker with replaceable rating adjuster and interlock means |
US3818275A (en) * | 1973-01-30 | 1974-06-18 | Westinghouse Electric Corp | Circuit interrupter including improved trip circuit using current transformers |
US3939363A (en) * | 1974-02-25 | 1976-02-17 | Westinghouse Electric Corporation | Circuitry with zener diode voltage surge suppressor connected to serve as half wave rectifier |
-
1976
- 1976-03-10 US US05/665,598 patent/US4025821A/en not_active Expired - Lifetime
-
1977
- 1977-02-15 ZA ZA770910A patent/ZA77910B/xx unknown
- 1977-02-23 CA CA272,486A patent/CA1068391A/en not_active Expired
- 1977-02-24 IN IN273/CAL/77A patent/IN146387B/en unknown
- 1977-02-26 DE DE19772708519 patent/DE2708519A1/de not_active Ceased
- 1977-02-28 NZ NZ183454A patent/NZ183454A/xx unknown
- 1977-03-07 AU AU22965/77A patent/AU512451B2/en not_active Expired
- 1977-03-07 PH PH19534A patent/PH12603A/en unknown
- 1977-03-07 CH CH280077A patent/CH613808A5/xx not_active IP Right Cessation
- 1977-03-09 GB GB9849/77A patent/GB1555627A/en not_active Expired
- 1977-03-09 BE BE175654A patent/BE852292A/xx not_active IP Right Cessation
- 1977-03-09 ES ES1977226997U patent/ES226997Y/es not_active Expired
- 1977-03-10 JP JP2551977A patent/JPS52109170A/ja active Pending
-
1985
- 1985-09-02 JP JP1985133165U patent/JPS6149947U/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS6149947U (xx) | 1986-04-03 |
ES226997U (es) | 1977-11-01 |
CH613808A5 (xx) | 1979-10-15 |
ES226997Y (es) | 1978-03-01 |
AU512451B2 (en) | 1980-10-09 |
BE852292A (fr) | 1977-09-09 |
PH12603A (en) | 1979-06-27 |
DE2708519A1 (de) | 1977-09-22 |
CA1068391A (en) | 1979-12-18 |
JPS52109170A (en) | 1977-09-13 |
GB1555627A (en) | 1979-11-14 |
IN146387B (xx) | 1979-05-19 |
US4025821A (en) | 1977-05-24 |
NZ183454A (en) | 1979-12-11 |
AU2296577A (en) | 1978-09-14 |
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