GB788654A - Improvements in and relating to thermally responsive electric switches - Google Patents
Improvements in and relating to thermally responsive electric switchesInfo
- Publication number
- GB788654A GB788654A GB11625/54A GB1162554A GB788654A GB 788654 A GB788654 A GB 788654A GB 11625/54 A GB11625/54 A GB 11625/54A GB 1162554 A GB1162554 A GB 1162554A GB 788654 A GB788654 A GB 788654A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- windings
- contact
- terminal
- main
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- 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
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
- G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H61/00—Electrothermal relays
- H01H61/002—Structural combination of a time delay electrothermal relay with an electrothermal protective relay, e.g. a start relay
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Protection Of Generators And Motors (AREA)
- Thermally Actuated Switches (AREA)
Abstract
788,654. Thermal switches; protective cut-out systems; control of A.C. motors. ELLENBERGER & POENSGEN GES. April 22, 1954, No. 11625/54. Classes 38 (3) and 38 (5). [Also in Group XXXV] A switch comprises a bimetal strip 6 carrying a contact 5 and connected to a terminal 7, a heater 8 connected to a separate terminal 9 and to the contact 5, and a fixed contact 2 connected to a terminal 4. Preferably and as shown, the bimetal carries a back contact 5<SP>2</SP> which cooperates with a contact 9<SP>2</SP> connected to terminal 9 so as to short-circuit the heater 8 in order to prevent overheating of the bimetal. The switch may be used in a variety of circuits, e.g. in Fig. 2, a motor starting winding 37 may be cut out a certain time after closing a main switch 39, leaving the main winding 38 energized. In Fig. 4, shunt windings 44, 45 are respectively connected to terminals 9, 7 of the switch which cuts out the motor on overload. In Fig. 5 (not shown), shunt wound starting windings are controlled by one such switch and overload control of the shunt wound main windings is given by a second such switch. Alternatively, in Fig. 6 (not shown), series wound starting windings are controlled similarly, and the overload control of the series wound main windings is given by a known switch.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE0007619 | 1953-07-29 | ||
DEE8047A DE1173579B (en) | 1953-07-29 | 1953-10-29 | Starter switch for single-phase induction motors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB788654A true GB788654A (en) | 1958-01-08 |
Family
ID=25972865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11625/54A Expired GB788654A (en) | 1953-07-29 | 1954-04-22 | Improvements in and relating to thermally responsive electric switches |
Country Status (6)
Country | Link |
---|---|
US (1) | US2828389A (en) |
BE (1) | BE528969A (en) |
CH (1) | CH326338A (en) |
DE (2) | DE1173579B (en) |
FR (1) | FR1099705A (en) |
GB (1) | GB788654A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2151092A (en) * | 1983-11-23 | 1985-07-10 | Grundfos As | Single-phase asynchronous electric motor |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USB354822I5 (en) * | 1956-07-19 | |||
US2984722A (en) * | 1958-09-23 | 1961-05-16 | Essex Wire Corp | Motor starter switch |
DE1170519B (en) * | 1959-10-26 | 1964-05-21 | Ellenberger & Poensgen | Switching device with a motor protection switch and an electrically connected starter switch for induction motors |
US3095486A (en) * | 1960-07-14 | 1963-06-25 | Texas Instruments Inc | Miniaturized printed circuit electrical switching device |
US3274441A (en) * | 1961-10-09 | 1966-09-20 | Benedik Fedor | Sequential electrical lighting arrangement |
US3973102A (en) * | 1976-01-12 | 1976-08-03 | Equipment Development Corporation | Heating and temperature control device for a bath-liquid |
DE3129043A1 (en) * | 1981-07-23 | 1983-02-03 | Robert 4800 Bielefeld Stahlschmidt | Switching arrangement for electrical machines |
BR102012030933A2 (en) * | 2012-12-04 | 2014-09-09 | Whirlpool Sa | CIRCUIT AND PROTECTION DEVICE FOR INDUCTION MOTORS, INDUCTION MOTOR AND CONTROL AND PROTECTION SYSTEM FOR A INDUCTION MOTOR |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL33910C (en) * | ||||
GB191317947A (en) * | 1913-08-06 | 1914-04-09 | Giovanni Battista Caminati | Thermo-electric Current Consumption Regulator. |
US1701757A (en) * | 1922-04-13 | 1929-02-12 | John M Lea | Electric-circuit-controlling device |
US1581714A (en) * | 1922-09-23 | 1926-04-20 | Birka Regulator Ab | Thermostatic time switch |
GB220421A (en) * | 1923-06-29 | 1924-08-21 | Cyril French | Automatic electric switch |
DE464688C (en) * | 1925-06-13 | 1928-08-22 | Elfa Elektrotechnische Fabrik | Installation circuit breaker |
US1898174A (en) * | 1926-09-11 | 1933-02-21 | Dubilier William | Flasher device |
DE488688C (en) * | 1926-12-12 | 1930-01-04 | Gen Electric | Device for the automatic connection and disconnection of a secondary circuit depending on the load on the main circuit |
DE515562C (en) * | 1927-03-03 | 1931-01-07 | Birka Regulator G M B H | Heat relay circuit, especially for electric heating and cooling devices |
US2043470A (en) * | 1934-05-14 | 1936-06-09 | Gen Motors Corp | Switch with automatic release |
DE621815C (en) * | 1934-05-25 | 1935-11-15 | Nationale Telephon Und Telegra | Heat time relay to achieve long switching times |
US2117123A (en) * | 1934-08-22 | 1938-05-10 | Gen Motors Corp | Control system |
AT146782B (en) * | 1934-08-23 | 1936-08-10 | Elektrisk Bureau As | Coupling device for liftable electric lamps. |
DE652316C (en) * | 1935-02-05 | 1937-10-28 | Aeg | Installation circuit breaker with thermal tripping device for circuits whose current strength is greater during the switch-on period than after the switch-on has been completed |
US2311545A (en) * | 1939-05-05 | 1943-02-16 | Electric Household Utilities | Control for washing machines |
CH215225A (en) * | 1939-07-13 | 1941-06-15 | Westinghouse Electric Corp | Protection device of an electric machine. |
US2279214A (en) * | 1939-07-13 | 1942-04-07 | Westinghouse Electric & Mfg Co | Thermal motor protective device |
US2320252A (en) * | 1941-01-24 | 1943-05-25 | Metals & Controls Corp | Thermostatic protective circuit |
US2417912A (en) * | 1944-08-31 | 1947-03-25 | Gen Motors Corp | Split-phase motor thermal starting switch |
US2618721A (en) * | 1945-06-16 | 1952-11-18 | Gen Motors Corp | Control with column loaded strip |
US2576815A (en) * | 1946-05-06 | 1951-11-27 | Edward V Sundt | Fuse plug circuit breaker |
US2535969A (en) * | 1946-09-14 | 1950-12-26 | Stewart Warner Corp | Heater control system with time-delay switch |
DE822277C (en) * | 1948-10-02 | 1952-04-21 | Otto Streng Dipl Ing | Overcurrent circuit breaker with electromagnetic short-circuit and thermal overcurrent release |
DE828270C (en) * | 1950-02-18 | 1952-01-17 | Siemens Schuckertwerke A G | Hot wire relay for switching the auxiliary phase of single-phase induction motors on and off |
US2630553A (en) * | 1951-05-15 | 1953-03-03 | Gen Electric | Dual voltage alternating current motor |
-
0
- BE BE528969D patent/BE528969A/xx unknown
- DE DENDAT1075206D patent/DE1075206B/en active Pending
-
1953
- 1953-10-29 DE DEE8047A patent/DE1173579B/en active Pending
-
1954
- 1954-04-20 CH CH326338D patent/CH326338A/en unknown
- 1954-04-22 GB GB11625/54A patent/GB788654A/en not_active Expired
- 1954-04-27 FR FR1099705D patent/FR1099705A/en not_active Expired
- 1954-07-13 US US442999A patent/US2828389A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2151092A (en) * | 1983-11-23 | 1985-07-10 | Grundfos As | Single-phase asynchronous electric motor |
Also Published As
Publication number | Publication date |
---|---|
DE1075206B (en) | 1960-02-11 |
BE528969A (en) | |
CH326338A (en) | 1957-12-15 |
US2828389A (en) | 1958-03-25 |
FR1099705A (en) | 1955-09-08 |
DE1173579B (en) | 1964-07-09 |
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