GB183170A - Armature testing device - Google Patents
Armature testing deviceInfo
- Publication number
- GB183170A GB183170A GB536521A GB536521A GB183170A GB 183170 A GB183170 A GB 183170A GB 536521 A GB536521 A GB 536521A GB 536521 A GB536521 A GB 536521A GB 183170 A GB183170 A GB 183170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- coils
- coil
- lamp
- commutator segments
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
183,170. Cullin, J. F. Feb. 16, 1921. Locating faults in insulation; combinations of instruments. - An armature-testing device comprises means for rotatably supporting the armature, an electromagnet for inducing currents in the armature coils, indicators to show the intensity of these currents, and means electrically connecting the indicators and contacting with the commutator segments. The device is described with reference to an armature having twenty-one coils. The armature is supported between the poles of an electromagnet 11, 12 on pedestals 3, 4 connected to an iron plate 2, the commutator segments being connected to a series of lamps 20 - - 24 by contact pins 33 - - 38 through switches 25 - - 29. The contact pins are mounted to slide in an insulating-block 32 against conducting-springs 42, a spring contact 39 being earthed through the lamp 24. The number of coils between certain commutator segments and between the contact pins determines the degree of brilliancy of the lamps 20 - - 23 and a short-circuit in one of the coils alters the brilliancy, thus indicating the faulty section of coils. The faulty coil is located by a lamp circuit always connected to one coil, An earthed coil is located bv the contact 39 when the lamp 24 glows. The switches 25 - - 29 may be omitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB536521A GB183170A (en) | 1921-02-16 | 1921-02-16 | Armature testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB536521A GB183170A (en) | 1921-02-16 | 1921-02-16 | Armature testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB183170A true GB183170A (en) | 1922-07-17 |
Family
ID=9794721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB536521A Expired GB183170A (en) | 1921-02-16 | 1921-02-16 | Armature testing device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB183170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE764779C (en) * | 1941-07-19 | 1954-10-11 | Siemens Schuckertwerke A G | Testing device for stands for three-phase and alternating current machines |
-
1921
- 1921-02-16 GB GB536521A patent/GB183170A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE764779C (en) * | 1941-07-19 | 1954-10-11 | Siemens Schuckertwerke A G | Testing device for stands for three-phase and alternating current machines |
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