GB123766A - Improvements in Alternating Current Limiting Apparatus. - Google Patents
Improvements in Alternating Current Limiting Apparatus.Info
- Publication number
- GB123766A GB123766A GB4709/19A GB470919A GB123766A GB 123766 A GB123766 A GB 123766A GB 4709/19 A GB4709/19 A GB 4709/19A GB 470919 A GB470919 A GB 470919A GB 123766 A GB123766 A GB 123766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- switch
- overload
- magnetic
- alternating current
- 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
- H01H75/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of power reset mechanism
- H01H75/02—Details
- H01H75/04—Reset mechanisms for automatically reclosing a limited number of times
- H01H75/06—Reset mechanisms for automatically reclosing a limited number of times effecting one reclosing action only
Abstract
123,766. Salto, S. Feb. 28, 1918, [Convention date]. Electro-magnetic switches; switches partly electro-magnetic.-In an alternating current overload limit switch, the switch is held open by a coil b supplied at a lower voltage than the main voltage. The switch is opened on an overload either by a thermal device or by a coil a in the main circuit. The coil b is connected to the secondary of a transformer 10, the circuit being completed either direct to the transformer or through the consuming devices; in the latter case, as some of the consuming devices are switched out after an overload, the resulting lowering of the current through the coil b immediately allows the switch to close. An adjustable plate 21 in a slot 22 in the magnet may be used to vary the magnetic circuit. The stop 20 for the armature is adjustable.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT399478X | 1918-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB123766A true GB123766A (en) | 1920-03-18 |
Family
ID=11246280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4709/19A Expired GB123766A (en) | 1918-02-28 | 1919-02-25 | Improvements in Alternating Current Limiting Apparatus. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE399478C (en) |
| FR (1) | FR495659A (en) |
| GB (1) | GB123766A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE741044C (en) * | 1940-09-26 | 1943-11-03 | Ing Karl Kesl | Electrical circuit arrangement |
-
1919
- 1919-02-10 FR FR495659A patent/FR495659A/en not_active Expired
- 1919-02-25 GB GB4709/19A patent/GB123766A/en not_active Expired
-
1920
- 1920-07-04 DE DES53597D patent/DE399478C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE399478C (en) | 1924-08-08 |
| FR495659A (en) | 1919-10-15 |
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