GB1522311A - Fuses - Google Patents
FusesInfo
- Publication number
- GB1522311A GB1522311A GB2160674A GB2160674A GB1522311A GB 1522311 A GB1522311 A GB 1522311A GB 2160674 A GB2160674 A GB 2160674A GB 2160674 A GB2160674 A GB 2160674A GB 1522311 A GB1522311 A GB 1522311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- overload
- time
- currents
- core
- 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
- H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
Landscapes
- Transformers For Measuring Instruments (AREA)
- Fuses (AREA)
Abstract
1522311 Fusible cut-outs ELECTRICITY COUNCIL 15 Aug 1975 [15 May 1974] 21606/74 Heading H2G A fuse for an alternating current electrical circuit comprises a pair of elements ACB, ADB connected in parallel between two terminals 11, 13 and formed in a loop round a ferromagnetic core 15, a conductor 10 from one common connection of the elements forming another loop around the core and the resistances R 1 , R 2 of the elements and the configuration of the loops giving a low-overload-current-operating- time which is shorter than that of a conventional fuse with the same high-overload-currentoperating-time. This is achieved by employing the transformer effect at low overload currents to induce high local currents in the elements while at heavy overload currents a relatively long operating time is maintained since the core becomes saturated and the transformer effect is lost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2160674A GB1522311A (en) | 1975-08-15 | 1975-08-15 | Fuses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2160674A GB1522311A (en) | 1975-08-15 | 1975-08-15 | Fuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1522311A true GB1522311A (en) | 1978-08-23 |
Family
ID=10165759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2160674A Expired GB1522311A (en) | 1975-08-15 | 1975-08-15 | Fuses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1522311A (en) |
-
1975
- 1975-08-15 GB GB2160674A patent/GB1522311A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |