NO130446C - - Google Patents
Info
- Publication number
- NO130446C NO130446C NO642/73A NO64273A NO130446C NO 130446 C NO130446 C NO 130446C NO 642/73 A NO642/73 A NO 642/73A NO 64273 A NO64273 A NO 64273A NO 130446 C NO130446 C NO 130446C
- Authority
- NO
- Norway
Links
Classifications
-
- 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
-
- 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
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- 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
- H02H7/04—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 transformers
- H02H7/055—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 transformers for tapped transformers or tap-changing means thereof
-
- 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
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/548—Electromechanical and static switch connected in series
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
- Relay Circuits (AREA)
- Control Of Electrical Variables (AREA)
- Farming Of Fish And Shellfish (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2207367A DE2207367C2 (de) | 1972-02-17 | 1972-02-17 | Anordnung zur Verhinderung von Stufenkurzschlüssen bei Lastumschaltern von Stufentransformatoren mit antiparallel geschalteten Thyristoren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO130446B NO130446B (US06811534-20041102-M00003.png) | 1974-09-02 |
| NO130446C true NO130446C (US06811534-20041102-M00003.png) | 1975-10-16 |
Family
ID=5836172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO642/73A NO130446C (US06811534-20041102-M00003.png) | 1972-02-17 | 1973-02-16 |
Country Status (7)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3944913A (en) * | 1974-06-01 | 1976-03-16 | Mashinenfabrik Reinhausen Gebruder Scheubeck K. G. | System for effecting tap changes of tapped transformer windings by means of thyristors |
| US4025820A (en) * | 1976-03-11 | 1977-05-24 | Power Management Corporation | Contactor device including arc supression means |
| DE2612922C2 (de) * | 1976-03-26 | 1978-05-11 | Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg | Lastumschalter für Stufentransformatoren mit je einem in den beiden Lastzweigen angeordneten Paar von antiparallel geschalteten Thyristoren |
| US4301489A (en) * | 1979-12-19 | 1981-11-17 | Siemens-Allis, Inc. | Arcless tap changer utilizing static switching |
| US4363060A (en) * | 1979-12-19 | 1982-12-07 | Siemens-Allis, Inc. | Arcless tap changer for voltage regulator |
| AT400496B (de) * | 1987-06-25 | 1996-01-25 | Elin Oltc Gmbh Stufenschalter | Thyristor-lastumschalter |
| EP0764296A4 (en) * | 1994-04-06 | 1998-06-17 | Utility Systems Technologies I | POWER TAP SWITCH |
| US5990667A (en) * | 1997-10-24 | 1999-11-23 | Utility Systems Technologies, Inc. | Regulator with asymmetrical voltage increase/decrease capability for utility system |
| US6472851B2 (en) | 2000-07-05 | 2002-10-29 | Robicon Corporation | Hybrid tap-changing transformer with full range of control and high resolution |
| US7737667B2 (en) * | 2004-10-14 | 2010-06-15 | Utility Systems Technologies, Inc. | 3-phase electronic tap changer commutation and device |
| US7595614B2 (en) * | 2007-12-07 | 2009-09-29 | Pennsylvania Transformer Technology, Inc. | Load tap changer |
| DE102009017023A1 (de) * | 2009-04-14 | 2010-10-28 | Siemens Aktiengesellschaft | Antriebssystem für eine Anlage mit einem Wechselspannungsinselnetz |
| EP3316070B1 (en) * | 2016-10-27 | 2022-06-15 | Hitachi Energy Switzerland AG | Power electronic tap changer module for transformer |
| DE102020110935B3 (de) * | 2020-04-22 | 2021-07-01 | Maschinenfabrik Reinhausen Gmbh | Vorrichtung und verfahren zur begrenzung eines kurzschlussstromes in einem laststufenschalter sowie laststufenschalter mit dieser vorrichtung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3454832A (en) * | 1967-08-24 | 1969-07-08 | Gen Electric | Electric circuit interrupter |
| US3558910A (en) * | 1968-07-19 | 1971-01-26 | Motorola Inc | Relay circuits employing a triac to prevent arcing |
| JPS507727B1 (US06811534-20041102-M00003.png) * | 1969-11-04 | 1975-03-28 | ||
| SE350143B (US06811534-20041102-M00003.png) * | 1971-02-05 | 1972-10-16 | Asea Ab |
-
1972
- 1972-02-17 DE DE2207367A patent/DE2207367C2/de not_active Expired
-
1973
- 1973-02-12 SE SE7301914A patent/SE375398B/xx unknown
- 1973-02-14 FR FR7305181A patent/FR2172219B1/fr not_active Expired
- 1973-02-14 US US00332455A patent/US3786337A/en not_active Expired - Lifetime
- 1973-02-15 AT AT137073A patent/AT320086B/de active
- 1973-02-16 JP JP48018475A patent/JPS5237806B2/ja not_active Expired
- 1973-02-16 NO NO642/73A patent/NO130446C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2207367B1 (de) | 1973-08-09 |
| DE2207367C2 (de) | 1974-02-28 |
| JPS4889331A (US06811534-20041102-M00003.png) | 1973-11-22 |
| US3786337A (en) | 1974-01-15 |
| AT320086B (de) | 1975-01-27 |
| FR2172219A1 (US06811534-20041102-M00003.png) | 1973-09-28 |
| SE375398B (US06811534-20041102-M00003.png) | 1975-04-14 |
| NO130446B (US06811534-20041102-M00003.png) | 1974-09-02 |
| FR2172219B1 (US06811534-20041102-M00003.png) | 1978-08-04 |
| JPS5237806B2 (US06811534-20041102-M00003.png) | 1977-09-26 |
