GB690232A - Improvements in and relating to torque producing devices such as relays or indicating instruments - Google Patents
Improvements in and relating to torque producing devices such as relays or indicating instrumentsInfo
- Publication number
- GB690232A GB690232A GB1498250A GB1498250A GB690232A GB 690232 A GB690232 A GB 690232A GB 1498250 A GB1498250 A GB 1498250A GB 1498250 A GB1498250 A GB 1498250A GB 690232 A GB690232 A GB 690232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- pole
- main
- responsive
- current
- 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
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H53/00—Relays using the dynamo-electric effect, i.e. relays in which contacts are opened or closed due to relative movement of current-carrying conductor and magnetic field caused by force of interaction between them
- H01H53/10—Induction relays, i.e. relays in which the interaction is between a magnetic field and current induced thereby in a conductor
Landscapes
- Electromagnets (AREA)
- Synchronous Machinery (AREA)
Abstract
690,232. Electromagnets. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. June 15, 1951 [June 15, 1950], No. 14982/50. Class 35. [Also in Groups XXXVI and XXXVII] A torque producing device which may be used as a relay or indicating instrument, comprises a two-pole armature 16 overlapping with two pairs of poles 12, 13 and 14, 15, a main winding 30 for producing a main flux round the core 10, 11, and pole windings on one pole of each pair for varying the flux distribution and so turning the armature. A third winding is also provided which may be either on the poles, as shown, and carry the same current as the main coil, or be on the core and carry the pole winding current. The third winding opposes the winding adjacent to which it is wound, i.e. the pole-winding or the main winding respectively. In the form shown, the rotor is restrained by a spring 18 and carries a contact 20 for engagement with fixed contacts 21, 21 for use as a relay. The pole windings 31, 32 are energized with A.C. from a current transformer on one phase of a threephase supply, while the main winding 30 in series with coils 33, 34 are connected between the other two phases. It is shown that with this connection the device responds to the conductance of the circuit and it is stated that it would respond to susceptance if a 90 degree displacement was introduced between the energization of the current responsive winding and the voltage responsive winding. In the modified arrangement of coils the third winding is not placed on the poles but is on the core with the main coil 30 and is energized from a current transformer in series with the pole windings, the main winding 30 being energized between two lines as before. When this arrangement is applied to a single phase line the device is responsive to circuit reactance, while on a three-phase circuit it is responsive to resistance. The A.C. currents supplied to the device may be rectified. Specification 613,856 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1498250A GB690232A (en) | 1950-06-15 | 1950-06-15 | Improvements in and relating to torque producing devices such as relays or indicating instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1498250A GB690232A (en) | 1950-06-15 | 1950-06-15 | Improvements in and relating to torque producing devices such as relays or indicating instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB690232A true GB690232A (en) | 1953-04-15 |
Family
ID=10050977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1498250A Expired GB690232A (en) | 1950-06-15 | 1950-06-15 | Improvements in and relating to torque producing devices such as relays or indicating instruments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB690232A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3177385A (en) * | 1963-01-10 | 1965-04-06 | Mechanics For Electronics | Electric motor for limited rotation |
-
1950
- 1950-06-15 GB GB1498250A patent/GB690232A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3177385A (en) * | 1963-01-10 | 1965-04-06 | Mechanics For Electronics | Electric motor for limited rotation |
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