GB763695A - Magnetic device for detecting reverse current - Google Patents
Magnetic device for detecting reverse currentInfo
- Publication number
- GB763695A GB763695A GB74755A GB74755A GB763695A GB 763695 A GB763695 A GB 763695A GB 74755 A GB74755 A GB 74755A GB 74755 A GB74755 A GB 74755A GB 763695 A GB763695 A GB 763695A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- pole shoes
- reverse current
- soft iron
- conductor
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- 239000004020 conductor Substances 0.000 abstract 3
- 229910052742 iron Inorganic materials 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
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
- H01H83/08—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by reversal of DC
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
763,695. Electric indicators. MASCHINENFABRIK OERLIKON. Jan. 10, 1955, No. 747/55. Class 40 (1). [Also in Groups XXXV, XXXVI and XXXVII] A device for detecting reverse current in a rectifier anode conductor 1 comprises a pair of permanent bar magnets 5 embedded in a copper block 11 and having soft iron pole shoes 7, and shielded by a pair of soft iron pole shoes 3, there being also a soft iron yoke 8 and a pivoted armature 9 biased by a spring 10. Normally, the field 2 of the conductor 1 induces N and S poles in the pole shoes 3 as shown, and the armature is held against the S<SP>1</SP> pole of the permanent magnet system, a reverse current in the conductor causing reversal of the polarity of the pole shoes 3 whereby the armature 9 moves into the chain-dotted line position. Resetting is by hand or by a separate electromagnet. The armature may operate contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB74755A GB763695A (en) | 1955-01-10 | 1955-01-10 | Magnetic device for detecting reverse current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB74755A GB763695A (en) | 1955-01-10 | 1955-01-10 | Magnetic device for detecting reverse current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB763695A true GB763695A (en) | 1956-12-12 |
Family
ID=9709821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB74755A Expired GB763695A (en) | 1955-01-10 | 1955-01-10 | Magnetic device for detecting reverse current |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB763695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2138211A (en) * | 1983-04-13 | 1984-10-17 | Lre Relais & Elektronik Gmbh | Magnet apparatus |
-
1955
- 1955-01-10 GB GB74755A patent/GB763695A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2138211A (en) * | 1983-04-13 | 1984-10-17 | Lre Relais & Elektronik Gmbh | Magnet apparatus |
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