GB207860A - A device for indicating or controlling the temperature of the windings or other parts of electric machines through which the current flows - Google Patents
A device for indicating or controlling the temperature of the windings or other parts of electric machines through which the current flowsInfo
- Publication number
- GB207860A GB207860A GB2401622A GB2401622A GB207860A GB 207860 A GB207860 A GB 207860A GB 2401622 A GB2401622 A GB 2401622A GB 2401622 A GB2401622 A GB 2401622A GB 207860 A GB207860 A GB 207860A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- indicating
- controlling
- vary
- parts
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
- G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Thermally Actuated Switches (AREA)
Abstract
207,860. Schr÷der, E. Sept. 5, 1922. Thermal switches.-Relates to protective devices for electric apparatus of the kind in which a temperature indicator or controller in the current circuit has the same heating characteristic as the part of the apparatus to be protected, and comprises a bi-metallic or other suitable conductor enveloped by a heat insulator which can be adjusted to vary its insulating effect. In one form, Fig. 5, the device automatically opens directly or indirectly a main switch m. The conductor comprises a Bourdon gauge r the free end b<1> of which, on expansion, releases a catch g and allows the spring f to open the switch. The heat-insulating element may comprise an adjustable double-walled insulator h having a slot s in the outer wall, or as shown in Fig. 4 may comprise two cylindrical portions slidable over one another to vary the gap s between them.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2401622A GB207860A (en) | 1922-09-05 | 1922-09-05 | A device for indicating or controlling the temperature of the windings or other parts of electric machines through which the current flows |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2401622A GB207860A (en) | 1922-09-05 | 1922-09-05 | A device for indicating or controlling the temperature of the windings or other parts of electric machines through which the current flows |
Publications (1)
Publication Number | Publication Date |
---|---|
GB207860A true GB207860A (en) | 1923-12-05 |
Family
ID=10205021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2401622A Expired GB207860A (en) | 1922-09-05 | 1922-09-05 | A device for indicating or controlling the temperature of the windings or other parts of electric machines through which the current flows |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB207860A (en) |
-
1922
- 1922-09-05 GB GB2401622A patent/GB207860A/en not_active Expired
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