GB499197A - Improvements in means for controlling the connection between the voltage tappings and the output terminals of electric transformers - Google Patents
Improvements in means for controlling the connection between the voltage tappings and the output terminals of electric transformersInfo
- Publication number
- GB499197A GB499197A GB1659737A GB1659737A GB499197A GB 499197 A GB499197 A GB 499197A GB 1659737 A GB1659737 A GB 1659737A GB 1659737 A GB1659737 A GB 1659737A GB 499197 A GB499197 A GB 499197A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- switch
- brush
- maximum
- output terminals
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/06—Variable transformers or inductances not covered by group H01F21/00 with current collector gliding or rolling on or along winding
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
499,197. Transformers. BAGNALL, R. I., and FOSTER ENGINEERING CO., Ltd. June 15, 1937, No. 16597. [Class 38 (ii)] In an on-load transformer tap changing arrangement the tap changing switch is arranged in the form of a commutator, the tappings being connected to the segments 2, Fig. 1, mounted on a support 1, current being collected by means of a brush 11 which is made wide enough to bridge the insulation between adjacent contacts and has a non- uniform specific resistance such that the resistance of the brush to the flow of load current is less than its resistance to the flow of circulating current which occurs when the brush bridges a pair of elements. Fig. 3 shows a circuit arrangement whereby the voltage at the output terminals OT can be varied from zero to a maximum. The transformer winding 6 has one half tapped and connected to the tap changing switch 2, 3. With the switch 22 on contact 1 the voltage can be varied from zero to one half maximum by anticlockwise movement of the arm 12 and with switch 22 on contact 2 the voltage can be increased to the maximum by clockwise movement of the arm 12. A polyphase arrangement is described. It is stated that the commutator may be helical in form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1659737A GB499197A (en) | 1937-06-15 | 1937-06-15 | Improvements in means for controlling the connection between the voltage tappings and the output terminals of electric transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1659737A GB499197A (en) | 1937-06-15 | 1937-06-15 | Improvements in means for controlling the connection between the voltage tappings and the output terminals of electric transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB499197A true GB499197A (en) | 1939-01-16 |
Family
ID=10080197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1659737A Expired GB499197A (en) | 1937-06-15 | 1937-06-15 | Improvements in means for controlling the connection between the voltage tappings and the output terminals of electric transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB499197A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748175C (en) * | 1939-11-17 | 1944-10-27 | Regulating transformer |
-
1937
- 1937-06-15 GB GB1659737A patent/GB499197A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748175C (en) * | 1939-11-17 | 1944-10-27 | Regulating transformer |
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