HU896221D0 - Ratio switch with concentric driving shafts for multistage transformers - Google Patents
Ratio switch with concentric driving shafts for multistage transformersInfo
- Publication number
- HU896221D0 HU896221D0 HU896221A HU622189A HU896221D0 HU 896221 D0 HU896221 D0 HU 896221D0 HU 896221 A HU896221 A HU 896221A HU 622189 A HU622189 A HU 622189A HU 896221 D0 HU896221 D0 HU 896221D0
- Authority
- HU
- Hungary
- Prior art keywords
- actuating shaft
- contact
- actuating
- guided
- driving shafts
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0027—Operating mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Multiple-Way Valves (AREA)
- Gear Transmission (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Cylindrical tap selector for step-down transformers, in which fixed contacts (4) are arranged in at least two circular paths (I,...,VI) situated above one another, and in which there is provided for each circular path a contact bridge (5), the inner end of which slides on a contact ring (6) situated in the plane of the circular path, and the outer end of which comes into contact in steps with the tap contacts of the corresponding circle. The contact bridges of different planes are guided by means of two tubular actuating shafts (7, 8), which are actuated at their upper ends by means of intermittent gearing (2). One actuating shaft (8) - the inner one - extends at least partially inside the other actuating shaft (7). In its region situated outside the outer actuating shaft (7), it is widened to the diameter of the outer actuating shaft and guided with the widened lower end in a central bearing (11) of the tap selector. At its lower free end, the outer actuating shaft is mounted on the inner actuating shaft by means of a plurality of guide blocks (12), which are arranged between the two actuating shafts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3840529A DE3840529A1 (en) | 1988-12-01 | 1988-12-01 | STEP SELECTOR FOR STEP TRANSFORMERS WITH CONCENTRIC DRIVE SHAFTS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| HU896221D0 true HU896221D0 (en) | 1990-02-28 |
| HUT52272A HUT52272A (en) | 1990-06-28 |
| HU206167B HU206167B (en) | 1992-08-28 |
Family
ID=6368261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU896221A HU206167B (en) | 1988-12-01 | 1989-11-28 | Ratio switch with concentric driving shafts for multistage transformers |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0371376B1 (en) |
| JP (1) | JPH02189907A (en) |
| KR (1) | KR910010546A (en) |
| AT (1) | ATE104469T1 (en) |
| DE (2) | DE3840529A1 (en) |
| HU (1) | HU206167B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE508909C (en) * | 1928-05-10 | 1930-10-03 | Siemens Schuckertwerke Akt Ges | Step transformer whose voltage is to be regulated under load |
| US2820953A (en) * | 1954-08-24 | 1958-01-21 | Gen Electric | Transformer tap changer mechanism |
| BE631167A (en) * | 1962-04-19 | |||
| FR1354578A (en) * | 1962-04-19 | 1964-03-06 | Bbc Brown Boveri & Cie | Switching system with adjustment taps |
| US3783206A (en) * | 1972-07-06 | 1974-01-01 | Westinghouse Electric Corp | Tap changing apparatus with improved contact structure to eliminate electrical fields across open interrupter switches |
| DE3310741A1 (en) * | 1983-03-24 | 1984-09-27 | Transformatoren Union Ag, 7000 Stuttgart | LOAD SELECTOR FOR SWITCHING STEPWINDINGS OF A THREE-PHASE TRANSFORMER |
-
1988
- 1988-12-01 DE DE3840529A patent/DE3840529A1/en active Granted
-
1989
- 1989-11-21 EP EP89121511A patent/EP0371376B1/en not_active Expired - Lifetime
- 1989-11-21 AT AT89121511T patent/ATE104469T1/en not_active IP Right Cessation
- 1989-11-21 DE DE58907457T patent/DE58907457D1/en not_active Expired - Fee Related
- 1989-11-28 HU HU896221A patent/HU206167B/en not_active IP Right Cessation
- 1989-11-28 JP JP1306774A patent/JPH02189907A/en active Pending
- 1989-11-30 KR KR1019890017627A patent/KR910010546A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0371376A3 (en) | 1991-08-14 |
| EP0371376A2 (en) | 1990-06-06 |
| JPH02189907A (en) | 1990-07-25 |
| KR910010546A (en) | 1991-06-29 |
| DE3840529A1 (en) | 1990-06-07 |
| DE3840529C2 (en) | 1991-01-17 |
| ATE104469T1 (en) | 1994-04-15 |
| HUT52272A (en) | 1990-06-28 |
| HU206167B (en) | 1992-08-28 |
| EP0371376B1 (en) | 1994-04-13 |
| DE58907457D1 (en) | 1994-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| HMM4 | Cancellation of final prot. due to non-payment of fee |