GB509130A - Improvements in and relating to electric fuses - Google Patents
Improvements in and relating to electric fusesInfo
- Publication number
- GB509130A GB509130A GB1318/39A GB131839A GB509130A GB 509130 A GB509130 A GB 509130A GB 1318/39 A GB1318/39 A GB 1318/39A GB 131839 A GB131839 A GB 131839A GB 509130 A GB509130 A GB 509130A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuse
- jan
- series
- spring
- terminal
- 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
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
- H01H2085/466—Circuit arrangements not adapted to a particular application of the protective device with remote controlled forced fusing
Landscapes
- Fuses (AREA)
Abstract
509,130. Electric cut-outs. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 14, 1939, No. 1318, Convention date, Jan. 14. 1938. [Class 38 (i)] A fusible cut-out is provided with a remotely. controlled heating device p, and two or more soldered connections, such as nand o of different melting points arranged in parallel and connected in series with the fusible conductor c so that under prolonged overloads insufficient to fuse the element c, the connection n with the lower melting point melts and allows the current to be interrupted by an auxiliary fuse k of low rating in series with the connection n. In the case of reverse current, the heater is put into operation by a relay and the connections at n and o are melted in turn. The element c is arranged between two contact plates g and f, the latter being directly connected to the terminal d. The plate g is electrically connected to the terminal e through a contact i under the control of a spring m and the auxiliary fuse k controlled by a spring m<SP>1</SP>. The heating device consists of a heating coil or of a container p containing a compound which generates heat when initially heated by a wire r. The element of the fuse k may consist of a silver wire coated with a solder of lead, tin or an alloy which delays the response of the element.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE509130X | 1938-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB509130A true GB509130A (en) | 1939-07-11 |
Family
ID=6547138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1318/39A Expired GB509130A (en) | 1938-01-14 | 1939-01-14 | Improvements in and relating to electric fuses |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB509130A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2673911A (en) * | 1949-06-10 | 1954-03-30 | Driescher Fritz | Fuse for low and high voltage current |
US2766351A (en) * | 1955-01-28 | 1956-10-09 | Chase Shawmut Co | Enclosed switch and fuse units |
CN111584308A (en) * | 2020-03-23 | 2020-08-25 | 中国航天时代电子有限公司 | Replaceable contact device |
-
1939
- 1939-01-14 GB GB1318/39A patent/GB509130A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2673911A (en) * | 1949-06-10 | 1954-03-30 | Driescher Fritz | Fuse for low and high voltage current |
US2766351A (en) * | 1955-01-28 | 1956-10-09 | Chase Shawmut Co | Enclosed switch and fuse units |
CN111584308A (en) * | 2020-03-23 | 2020-08-25 | 中国航天时代电子有限公司 | Replaceable contact device |
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