WO2005041230A1 - Load tap changer with motor drive - Google Patents
Load tap changer with motor drive Download PDFInfo
- Publication number
- WO2005041230A1 WO2005041230A1 PCT/EP2004/009006 EP2004009006W WO2005041230A1 WO 2005041230 A1 WO2005041230 A1 WO 2005041230A1 EP 2004009006 W EP2004009006 W EP 2004009006W WO 2005041230 A1 WO2005041230 A1 WO 2005041230A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switch
- motor
- cam
- actuated
- motor drive
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/36—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having only two operative positions, e.g. relatively displaced by 180 degrees
- H01H19/38—Change-over switches
-
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
-
- 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
- H01H2009/0061—Monitoring tap change switching devices
Definitions
- the invention relates to an on-load tap changer with a motor drive.
- the applicable standards such as IEC 60214 and VDE 0532 stipulate that the motor drive has a direction of rotation monitoring and has means that ensure an automatic termination of a switchover in the direction once started. This requires information about the direction of rotation.
- the known on-load tap-changer uses a rotating field control relay for monitoring the direction of rotation and a bistable relay (current surge relay) for automatically ending a changeover that has already started.
- bistable relay current surge relay
- the object of the invention is therefore to provide an on-load tap changer with a motor drive of the type mentioned in the introduction, in which the described safety requirements are implemented in a simple and inexpensive manner.
- the on-load tap-changer has various new features which, in combination with one another, meet the safety requirements described.
- the direction of rotation monitoring and the restart of the motor drive are essentially derived from existing messages. It is particularly advantageous that no additional mechanical components are required; Both the described field control relay and the bistable relay can be omitted without replacement.
- inductive proximity sensors are provided on the diverter switch of the on-load tap changer, which detect its position. Furthermore, means for unlatching monitoring are arranged on the linkage between the motor drive and on-load tap changer, which have cam switches.
- Means are also provided for the mechanical running signal of the motor drive; this is recorded directly on the selector drive using a direction-independent cam track. Finally, electrical means for reporting the running of the (known) motor contactors are provided.
- Figure 1 shows the arrangement of the inductive proximity sensors
- FIG. 2 shows the means for unlatching monitoring on the linkage between the motor drive and on-load tap-changer.
- FIG. 3 shows the means for mechanical running signal on the selector drive
- FIG. 4 shows a complete circuit diagram of the motor drive as part of the on-load tap-changer according to the invention
- FIG. 5 shows a circuit extract with safety devices
- FIG. 6 shows a schematic switching sequence when switching from one winding tap of the dry-type transformer to another (adjacent) winding tap.
- FIG. 1 shows how the position of the diverter switch is detected by inductive proximity sensors S70, S71 on the diverter switch. An even / odd message is generated, which is multiplied by auxiliary contactors K13 and K14, which are explained below.
- the diverter switch itself switches approximately 20 degrees before the end of a shift. In the entire exemplary embodiment, a total rotation angle of 360 degrees is assumed for each load switchover.
- a cam track is provided on the linkage between the motor drive and the step switch, black in the figure, which is widened in one direction by 130 degrees, so that with it corresponding cam switches S23 or S24 - depending on the current position and controlled direction of rotation - 25 degrees Switch on or off at the beginning or before the end of a switchover.
- FIG. 3 shows the means for mechanically reporting the running of the motor drive.
- a directionally independent cam track is shown, which is arranged directly on the selector drive.
- a cam switch S13 switches on 35 degrees after the start of the switchover and 35 degrees before the end of the switchover. The movement of the selector itself begins at an angle of rotation greater than 35 degrees.
- FIG. 4 shows the circuit diagram according to the invention, which also has other known components which are necessary for explaining the overall function. The same applies to the actual monitoring unit shown in FIG. 5.
- the diverter switch is in the odd position, S71 actuated, K14 energized and S23 actuated. After activating the motor contactor K2, the motor M1 starts running in the "right" direction. After 25 degrees, the cam switch for the unlatch monitoring has reached the position that it maintains during the entire checking phase (35 degrees ... 325 degrees). Starting from FIG. 2 In this case, the states do not change: S23 remains activated, S24 is not activated. The cam switch S13 (FIG. 3) is activated after 35 degrees and activates the checking and restart phase.
- the diverter switch is in the odd position, S71 actuated, K14 energized and S23 actuated. After activating the motor contactor K1, the motor M1 starts running in the "left" direction. After 25 degrees, the cam switch for the unlatch monitoring has reached the position that it maintains during the entire checking phase (35 degrees ... 325 degrees). Starting from FIG. 2 S24 is actuated; S23 falls back. The cam switch S13 (FIG. 3) is actuated after 35 degrees and activates the checking and restarting phase.
- the diverter switch is in the straight position, S70 actuated, K13 tightened and S24 actuated.
- the motor M1 After activating the motor contactor K2, the motor M1 starts running in the "right" direction.
- the cam switch for the unlatch monitoring After 25 degrees, the cam switch for the unlatch monitoring has reached the position that it maintains during the entire checking phase (35 degrees ... 325 degrees). Starting from FIG. 2 In this case, the states do not change: S24 remains activated, S23 is not activated.
- the cam switch S13 (FIG. 3) is activated after 35 degrees and activates the checking and restart phase.
- the diverter switch is in the straight position, S70 actuated, K13 tightened and S24 actuated. After activating the motor contactor K1, the motor M1 starts running in the "right" direction. After 25 degrees, the cam switch for the unlatch monitoring has reached the position that it maintains during the entire inspection phase (35 degrees ... 325 degrees). Starting from FIG. 2 S23 is actuated, S24 falls back, cam switch S13 (FIG. 3) is actuated after 35 degrees and activates the checking and restarting phase.
- Errors in the monitoring and restarting device are automatically recognized as all contacts of the cam switches S23 and S24 are connected and trigger the motor protection switch Q1. If there is an error in the detection of the respective position of the diverter switch, either both monitoring circuits are electrically active or inactive; both trigger the motor protection switch Q1.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502004005453T DE502004005453D1 (en) | 2003-09-24 | 2004-08-12 | LOAD SWITCH WITH MOTOR DRIVE |
EP04764010A EP1665306B1 (en) | 2003-09-24 | 2004-08-12 | Load tap changer with motor drive |
HK06108033A HK1091672A1 (en) | 2003-09-24 | 2006-07-18 | Load tap changer with motor drive |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10344142.5 | 2003-09-24 | ||
DE10344142A DE10344142B3 (en) | 2003-09-24 | 2003-09-24 | Motorized load stepping switch for transformer using comparison of position signals from proximity switches and cam switches for operation of protection switch for electric drive motor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005041230A1 true WO2005041230A1 (en) | 2005-05-06 |
Family
ID=34042281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/009006 WO2005041230A1 (en) | 2003-09-24 | 2004-08-12 | Load tap changer with motor drive |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1665306B1 (en) |
KR (1) | KR20070083239A (en) |
CN (1) | CN100466128C (en) |
AT (1) | ATE377835T1 (en) |
DE (2) | DE10344142B3 (en) |
HK (1) | HK1091672A1 (en) |
WO (1) | WO2005041230A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100905525B1 (en) * | 2007-08-03 | 2009-07-01 | 주식회사 비엠일렉텍 | Cam contactor for automatic tap converting in accordance with commercial voltage fluctuation and charger comprising the same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011118488A1 (en) * | 2011-11-11 | 2013-05-16 | Maschinenfabrik Reinhausen Gmbh | Motor drive for tap changer |
DE102012103736A1 (en) | 2012-04-27 | 2013-10-31 | Maschinenfabrik Reinhausen Gmbh | Method for monitoring the operation of a tap changer |
KR101525595B1 (en) * | 2015-03-09 | 2015-06-03 | 성진전력 주식회사 | Apparatus and method for controlling of on load tap changer |
KR102459022B1 (en) * | 2020-07-20 | 2022-10-26 | 주식회사 원프레딕트 | Method for failure detection of OLTC(on load tab changer) and apparatus for performing the same |
KR102219309B1 (en) | 2020-11-13 | 2021-02-24 | 한국에너지솔루션 주식회사 | Transformer Using Electric Power Distribution Smart OLTC |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3427530A (en) * | 1966-10-17 | 1969-02-11 | Allis Chalmers Mfg Co | Tap changing voltage regulator having means for selecting limits of tap changer motion |
DE4214431A1 (en) * | 1992-04-30 | 1993-11-11 | Reinhausen Maschf Scheubeck | Motor drive for tap changers |
WO2001092978A1 (en) * | 2000-05-26 | 2001-12-06 | Abb Ab | A driving mechanism and a tap-changer comprising such a driving mechanism |
EP1215694A2 (en) * | 2000-12-15 | 2002-06-19 | MASCHINENFABRIK REINHAUSEN GmbH | Tap changer with monitoring of the switch status |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3801152A1 (en) * | 1988-01-16 | 1989-07-27 | Reinhausen Maschf Scheubeck | CONTACT ARRANGEMENT SITTING IN AN INSULATING WALL FOR STEPPERS OF STEPPING TRANSFORMERS |
DE4016428C1 (en) * | 1990-05-22 | 1991-11-07 | Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De | |
DE29812855U1 (en) * | 1998-07-20 | 1998-10-01 | Abb Patent Gmbh | Drive and control unit for a three-phase switch |
CN2413251Y (en) * | 2000-03-30 | 2001-01-03 | 张庆德 | Electrode salt-bath furnace with stepped current-limiting starting power supply |
DE10016489C2 (en) * | 2000-04-01 | 2002-01-31 | Reinhausen Maschf Scheubeck | Method for controlling a motor drive for a tap changer and tap changer suitable for such a method |
-
2003
- 2003-09-24 DE DE10344142A patent/DE10344142B3/en not_active Expired - Fee Related
-
2004
- 2004-08-12 DE DE502004005453T patent/DE502004005453D1/en active Active
- 2004-08-12 WO PCT/EP2004/009006 patent/WO2005041230A1/en active IP Right Grant
- 2004-08-12 AT AT04764010T patent/ATE377835T1/en not_active IP Right Cessation
- 2004-08-12 EP EP04764010A patent/EP1665306B1/en not_active Not-in-force
- 2004-08-12 CN CNB2004800009477A patent/CN100466128C/en not_active Expired - Fee Related
- 2004-08-12 KR KR1020057005006A patent/KR20070083239A/en not_active Application Discontinuation
-
2006
- 2006-07-18 HK HK06108033A patent/HK1091672A1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3427530A (en) * | 1966-10-17 | 1969-02-11 | Allis Chalmers Mfg Co | Tap changing voltage regulator having means for selecting limits of tap changer motion |
DE4214431A1 (en) * | 1992-04-30 | 1993-11-11 | Reinhausen Maschf Scheubeck | Motor drive for tap changers |
WO2001092978A1 (en) * | 2000-05-26 | 2001-12-06 | Abb Ab | A driving mechanism and a tap-changer comprising such a driving mechanism |
EP1215694A2 (en) * | 2000-12-15 | 2002-06-19 | MASCHINENFABRIK REINHAUSEN GmbH | Tap changer with monitoring of the switch status |
Non-Patent Citations (1)
Title |
---|
MASCHINENFABRIK REINHAUSEN GMBH: "Betriebsanleitung Laststufenschalter VACUTAP AVT BA 163", 1 October 2003, MASCHINENFABRIK REINHAUSEN GMBH, REGENSBURG, XP002309672 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100905525B1 (en) * | 2007-08-03 | 2009-07-01 | 주식회사 비엠일렉텍 | Cam contactor for automatic tap converting in accordance with commercial voltage fluctuation and charger comprising the same |
Also Published As
Publication number | Publication date |
---|---|
CN100466128C (en) | 2009-03-04 |
ATE377835T1 (en) | 2007-11-15 |
EP1665306A1 (en) | 2006-06-07 |
HK1091672A1 (en) | 2007-01-26 |
CN1706015A (en) | 2005-12-07 |
EP1665306B1 (en) | 2007-11-07 |
KR20070083239A (en) | 2007-08-24 |
DE10344142B3 (en) | 2005-02-10 |
DE502004005453D1 (en) | 2007-12-20 |
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