GB650919A - Improvements in or relating to electromagnetic relays - Google Patents
Improvements in or relating to electromagnetic relaysInfo
- Publication number
- GB650919A GB650919A GB2867448A GB2867448A GB650919A GB 650919 A GB650919 A GB 650919A GB 2867448 A GB2867448 A GB 2867448A GB 2867448 A GB2867448 A GB 2867448A GB 650919 A GB650919 A GB 650919A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- coil
- flux
- branch
- operating
- 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
- H01H51/00—Electromagnetic relays
- H01H51/22—Polarised relays
- H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
- H01F7/12—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements
- H01F7/1205—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements having short-circuited conductors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Relay Circuits (AREA)
Abstract
650,919. Electromagnetic relays. STANDARD TELEPHONES & CABLES, Ltd. Nov. 4, 1948, No. 28674. [Class 38(v)] A polarized relay particularly adapted for operation by D.C. superposed on an A.C. supply, has a shortcircuited coil A arranged on a branch of the magnetic circuit so as to vary the phase of the flux in that branch relatively to the flux in another branch whereby the resultant flux through the armature will have a smaller amplitude of fluctuation and the armature will be less liable to vibrate. In the ideal case, the phase difference is one half-cycle, equal flux is induced in the two branches and the resultant flux through the armature is equivalent to that obtained by D.C. only. In Fig. 2A the operating coil is mounted on the armature which moves between two poles on one of which the coil A is mounted. In a modification, Fig. 2B (not shown) the armature is bifurcated with the coil A on one of the prongs. Fig. 3B shows a different type of magnetic circuit with operating coils on the fixed parts and a resistance C included in the short-circuited winding. In a modification, Fig. 3A (not shown) instead of a separate coil, the top part of the operating winding is itself short-circuited by a resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2867448A GB650919A (en) | 1948-11-04 | 1948-11-04 | Improvements in or relating to electromagnetic relays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2867448A GB650919A (en) | 1948-11-04 | 1948-11-04 | Improvements in or relating to electromagnetic relays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB650919A true GB650919A (en) | 1951-03-07 |
Family
ID=10279330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2867448A Expired GB650919A (en) | 1948-11-04 | 1948-11-04 | Improvements in or relating to electromagnetic relays |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB650919A (en) |
-
1948
- 1948-11-04 GB GB2867448A patent/GB650919A/en not_active Expired
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