GB1244570A - Improvements in arc chute having arc runners coated with thermally-sprayed refractory metal - Google Patents
Improvements in arc chute having arc runners coated with thermally-sprayed refractory metalInfo
- Publication number
- GB1244570A GB1244570A GB37065/69A GB3706569A GB1244570A GB 1244570 A GB1244570 A GB 1244570A GB 37065/69 A GB37065/69 A GB 37065/69A GB 3706569 A GB3706569 A GB 3706569A GB 1244570 A GB1244570 A GB 1244570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arc
- refractory metal
- runners
- blow
- electrodes
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Coating By Spraying Or Casting (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
1,244,570. Arc extinguishing in switches. GENERAL ELECTRIC CO. 23 July, 1969 [3 Sept., 1968], No. 37065/69. Heading H1N. Arc runners 30, 31, Fig. 1, spaced apart within a shoot between insulating side walls 21 have coatings 32 of thermally sprayed refractory metal such as W, Mo, WC or MoC. The runners may be cleaned by grit blasting and initially given a plasma arc spray coating of W or Mo powder mixed with high conductivity powders of Cu or Ag. A small percentage of titanium hydride may also be added to reduce oxidation. A final layer of the pure refractory metal may then be added. Thicker coatings may be applied in the region of brazed on electrodes 60 and near the insulating spacers 36 between arc blow-out coils 37, 38. The electrodes 60 are provided for assisting the arc 29 to jump from the high resistance auxiliary arcing contact 7 to the upper runner 30 to which the current flows from fixed electrode 1 through a further blow-out coil 40. A corresponding blow-out coil 45 is provided for the second fixed electrode 2 to which it is connected by loop 56.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75686368A | 1968-09-03 | 1968-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1244570A true GB1244570A (en) | 1971-09-02 |
Family
ID=25045381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37065/69A Expired GB1244570A (en) | 1968-09-03 | 1969-07-23 | Improvements in arc chute having arc runners coated with thermally-sprayed refractory metal |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3588405A (en) |
| JP (1) | JPS4945911B1 (en) |
| BR (1) | BR6912103D0 (en) |
| DE (1) | DE1944143C3 (en) |
| ES (1) | ES172967Y (en) |
| FR (1) | FR2017280A1 (en) |
| GB (1) | GB1244570A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2163293A (en) * | 1984-08-15 | 1986-02-19 | Mitsubishi Electric Corp | Circuit-breaker arc control |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818165A (en) * | 1972-06-09 | 1974-06-18 | Gen Electric | Electric circuit interrupter |
| US3801760A (en) * | 1972-08-23 | 1974-04-02 | Gen Electric | Electric circuit breaker or the magnetic blowout type |
| US4019006A (en) * | 1973-02-05 | 1977-04-19 | Siemens Aktiengesellschaft | Overcurrent and short circuit protection device |
| FR2429488A1 (en) * | 1978-06-23 | 1980-01-18 | Merlin Gerin | Multipole LV switch - has ferromagnetic separators to entrap ionised gas and inhibit arcing |
| GB2192096B (en) * | 1986-05-31 | 1989-12-06 | Crabtree Electrical Ind Ltd | Circuit breaker |
| FR2648613B1 (en) * | 1989-06-16 | 1991-09-13 | Hager Electro | IMPROVEMENT IN ELECTRICAL SWITCHING DEVICES |
| DE102020201523A1 (en) | 2020-02-07 | 2021-08-12 | Siemens Aktiengesellschaft | Switching arc-resistant coating material for switching and contact devices as well as application examples for the coating material and two processes for its production |
-
1968
- 1968-09-03 US US756863A patent/US3588405A/en not_active Expired - Lifetime
-
1969
- 1969-07-23 GB GB37065/69A patent/GB1244570A/en not_active Expired
- 1969-08-21 ES ES1969172967U patent/ES172967Y/en not_active Expired
- 1969-08-30 DE DE1944143A patent/DE1944143C3/en not_active Expired
- 1969-09-02 FR FR6929947A patent/FR2017280A1/fr not_active Withdrawn
- 1969-09-03 BR BR212103/69A patent/BR6912103D0/en unknown
- 1969-09-03 JP JP44069389A patent/JPS4945911B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2163293A (en) * | 1984-08-15 | 1986-02-19 | Mitsubishi Electric Corp | Circuit-breaker arc control |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1944143C3 (en) | 1979-06-13 |
| ES172967U (en) | 1972-04-01 |
| FR2017280A1 (en) | 1970-05-22 |
| DE1944143A1 (en) | 1970-03-12 |
| DE1944143B2 (en) | 1978-10-12 |
| US3588405A (en) | 1971-06-28 |
| JPS4945911B1 (en) | 1974-12-06 |
| BR6912103D0 (en) | 1973-01-04 |
| ES172967Y (en) | 1973-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Daalder | Cathode spots and vacuum arcs | |
| GB1370593A (en) | Plasma spray torch and a method of operating the plasma spray torch | |
| GB1042708A (en) | High temperature flame spray powder and process | |
| US6211478B1 (en) | Switching arrangement and method for its production | |
| GB1244570A (en) | Improvements in arc chute having arc runners coated with thermally-sprayed refractory metal | |
| Frey et al. | Metallurgical aspects of contact materials for vacuum switching devices | |
| JPS61133159A (en) | Semi-transfer arc type fluid stabilizing plasma generator and use of said generator | |
| JP3733461B2 (en) | Composite torch type plasma generation method and apparatus | |
| CA2025015A1 (en) | Direct smelting process | |
| GB1025943A (en) | Improvements in or relating to vacuum type circuit interrupter | |
| IN157639B (en) | ||
| Schulman et al. | Effective erosion rates for selected contact materials in low-voltage contactors | |
| US3818165A (en) | Electric circuit interrupter | |
| GB1218662A (en) | Graphite electrodes having an oxidation-resistant surface coating | |
| US3752946A (en) | Arcing contract for an electric circuit breaker and method of making same | |
| US3801760A (en) | Electric circuit breaker or the magnetic blowout type | |
| GB1496744A (en) | Weld metal | |
| JPS5845790Y2 (en) | Plasma arc spraying equipment | |
| GB1216344A (en) | An electrode for electric welding | |
| JPS56151184A (en) | Production of electric contactor | |
| Sharkh | Influence of contact dynamics and point-on-wave switching on arc and contact phenomena in medium duty switches. | |
| JPS5655562A (en) | Plasma spraying method | |
| SU1121100A1 (en) | The method of processing products from ferrite materials pressure | |
| GB1109667A (en) | Improvements in or relating to the surface melting of metal bodies | |
| GB1460613A (en) | Method of and apparatus for plasma arc working of conductive materials |