WO2013017512A1 - Entraînement linéaire pour un commutateur à gradins - Google Patents

Entraînement linéaire pour un commutateur à gradins Download PDF

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Publication number
WO2013017512A1
WO2013017512A1 PCT/EP2012/064645 EP2012064645W WO2013017512A1 WO 2013017512 A1 WO2013017512 A1 WO 2013017512A1 EP 2012064645 W EP2012064645 W EP 2012064645W WO 2013017512 A1 WO2013017512 A1 WO 2013017512A1
Authority
WO
WIPO (PCT)
Prior art keywords
coils
linear drive
tap changer
switching
rod
Prior art date
Application number
PCT/EP2012/064645
Other languages
German (de)
English (en)
Inventor
Dieter Dohnal
Original Assignee
Maschinenfabrik Reinhausen Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Reinhausen Gmbh filed Critical Maschinenfabrik Reinhausen Gmbh
Publication of WO2013017512A1 publication Critical patent/WO2013017512A1/fr

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
    • H01H9/0027—Operating mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H01F2007/086—Structural details of the armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/124—Guiding or setting position of armatures, e.g. retaining armatures in their end position by mechanical latch, e.g. detent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes

Definitions

  • the invention relates to a linear drive for a tap changer for interruption
  • Tap changers have been an established state of the art for many years. As a rule, they have an insulating material stand or an insulating cylinder on which fixed selector contacts, which are in each case electrically connected to a winding lead-out of the tap winding of the transformer to be controlled, are arranged in at least one, usually a plurality of horizontal planes. In the center of this circular arrangement of fixed selector contacts is then a rotatable drive shaft which carries movable contacts, by means of which the fixed selector contacts are actuated. It takes place in this widespread type of tap changers so a rotational movement, which is usually generated by a triggered energy storage. A typical example of such a tap changer shows the DE 38 33 126th
  • DE 42 37 165 C1 describes a single-pole tap changer with linear contact actuation, wherein the switching mechanism of an elevator carriage and a through this by means of a
  • Force accumulator pull-up output part consists.
  • the stripping section runs after the triggering of the energy storage abruptly after the elevator carriage.
  • the disadvantage of this arrangement is mainly that an energy storage, here a spring energy storage, is necessary, which is elaborate and complex and must be mounted previously. After its release, it releases suddenly and abruptly a high energy, which is quite problematic.
  • the high kinetic energy leads to a heavy load on the moving components and can also unwanted shocks or
  • the object of the invention is to eliminate these disadvantages and to provide a suitable linear drive for a tap changer, which requires no separately retractable energy storage more.
  • the invention is based on the general inventive idea, an electromagnetic
  • a drive rod which is in communication with the components to be moved of the tap changer, which in turn carry the movable contacts.
  • the drive rod consists of alternating ferromagnetic and non-magnetic sections.
  • Around the drive rod around spatially successively arranged coils are arranged concentrically in its direction of movement, which can be pulsed electrically in any order for a short time, ie current is flowing through short-term. As a result, a fast, gradual movement of the drive rod is realized.
  • Drive rod can serve in their movement in the longitudinal direction.
  • Figure 3 shows a corresponding sequence of the respective excited coils for generating a
  • Figure 4 shows an advantageous circuit for energizing each one of the coils.
  • FIG. 1 schematically shows a linear drive according to the invention for a tap changer. It has a shift rod 1, which is designed to be longitudinally displaceable. Around this shift rod 1 around four electric coils 2, 3, 4, 5 are arranged concentrically in the longitudinal direction seen here.
  • the shift rod 1 is alternately divided into ferromagnetic portions m and non-magnetic portions n.
  • the individual sections have, seen in the direction of movement, each identical length a.
  • This length a corresponds particularly advantageous also the height of the individual, identically constructed coils 2 ... 5.
  • the distance b between the coils 2 ... 5, again seen in the direction of movement of the shift rod 1, is half of the value a for the length of the different sections m, n.
  • the shift rod 1 detents 6 At a distance b are provided on the shift rod 1 detents 6, of which for reasons of clarity, only a single is provided with reference numerals.
  • upper locking elements 7 and lower locking elements 8 Above and below the region of the coils 2 ... 5 are upper locking elements 7 and lower locking elements 8, each of which - against the force of springs 9 with - position-dependent - different notches 6 correspond and thus can fix the shift rod 1.
  • the shift rod 1 can each be actuated in the longitudinal direction by a certain distance, which corresponds exactly to the distance b between two coils 2 ... 5 and thus also the distance between two adjacent detents 6. Accordingly, the shift rod 1 is fixed in these stationary positions.
  • C denotes the axis of symmetry in the longitudinal direction of the switching rod 1
  • c and d denote two exemplary horizontal planes for latching elements 7, 8.
  • Figure 2 shows the possible positions of the shift rod 1 with different control of individual coils. This will be explained in connection with the figure 3, in which the corresponding
  • the coils are each actuated in opposite order. It can be seen that a movement of the shift rod 1 in both directions in each case by a constant path b is always possible by different control of individual coils.
  • the path b results from the fact that the movement of the shift rod 1 starting after the activation of the corresponding coil is completed when the respective magnetic region, which is only halfway into this coil at the beginning of the movement, has been completely moved into it.
  • the respective operating positions can be made possible in a particularly advantageous manner by the fixation shown in FIG. 1, but not shown in FIG. 2, by the detents 6 and respective detent elements 7, 8.
  • the illustrated latching elements 7, 8 can be designed in many ways, it can be, for example, spring-loaded balls, which engage in corresponding notches 6, it can also be used other means known in the art for it.
  • Figure 4 shows an advantageous circuit for DC excitation of the respective coils 2 ... 5. It has a power electronic component with power electronic switching elements, eg. B. GTO or thyristor, and is advantageously fed from a buffered memory, such as a capacitor. It is also possible within the scope of the invention, the required energy through an accumulator, z. B. to produce a lithium-ion battery. Of course it is also possible to supply the required voltage externally.
  • a power electronic component with power electronic switching elements, eg. B. GTO or thyristor
  • a buffered memory such as a capacitor
  • the invention allows a simple way with only a few components direct and accurate operation of a linear drive for a tap changer. Both conventional

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)

Abstract

L'invention concerne un entraînement linéaire pour un commutateur à gradins, comportant une tige de commande (1) qui présente alternativement des segments ferromagnétiques (m) et non ferromagnétiques (n). Autour de cette tige de commande (1) sont disposées concentriquement plusieurs bobines (2 à 5) pouvant être excitées séparément. Grâce à un pilotage défini de l'une des bobines (2 à 5), il est possible de réaliser un mouvement de la tige de commande d'un pas, sélectivement dans l'une ou l'autre des directions longitudinales.
PCT/EP2012/064645 2011-08-03 2012-07-26 Entraînement linéaire pour un commutateur à gradins WO2013017512A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110109272 DE102011109272B4 (de) 2011-08-03 2011-08-03 Linearantrieb in einem Stufenschalter
DE102011109272.6 2011-08-03

Publications (1)

Publication Number Publication Date
WO2013017512A1 true WO2013017512A1 (fr) 2013-02-07

Family

ID=46581969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/064645 WO2013017512A1 (fr) 2011-08-03 2012-07-26 Entraînement linéaire pour un commutateur à gradins

Country Status (2)

Country Link
DE (1) DE102011109272B4 (fr)
WO (1) WO2013017512A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110223866A (zh) * 2018-03-01 2019-09-10 济南爱迪电气设备有限公司 一种小型化有载调压开关及有载调压方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365632A (en) * 1942-10-01 1944-12-19 Electronid Corp Electromagnetic motive means
FR2308178A1 (fr) * 1975-04-16 1976-11-12 Bridon Engineering Ltd Perfectionnements aux dispositifs de commande
US4562385A (en) * 1983-10-17 1985-12-31 Rabson Thomas A Periodic reciprocating motor
DE4237165C1 (de) * 1992-11-04 1994-03-17 Reinhausen Maschf Scheubeck Einpoliger Stufenschalter mit linearer Kontaktbetätigung für einen Stufentransformator
DE102008049915A1 (de) * 2008-10-02 2010-04-08 Svm Schultz Verwaltungs-Gmbh & Co. Kg Elektromagnet
DE102009017197A1 (de) * 2009-04-09 2010-10-14 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Halbleiter-Schaltelementen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763245C (de) * 1938-03-15 1954-03-22 Siemens Schuckertwerke A G Stufenschaltvorrichtung fuer Anzapftransformatoren
DE3833126C2 (de) 1988-09-29 1995-11-30 Reinhausen Maschf Scheubeck Lastwähler für Stufentransformatoren
DE4402087C2 (de) 1994-01-25 1995-11-16 Reinhausen Maschf Scheubeck Dämpfungseinrichtung für linear betätigte Schalter, vorzugsweise Stufenschalter von Stufentransformatoren
DE10138681C1 (de) * 2001-08-07 2003-04-30 Festo Ag & Co Elektrodynamischer Lineardirektantrieb und Verfahren zur Herstellung seines Spulensystems
EP2308157A1 (fr) * 2008-06-13 2011-04-13 FESTO AG & Co. KG Entraînement linéaire direct, dispositif d'entraînement et dispositif de réglage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365632A (en) * 1942-10-01 1944-12-19 Electronid Corp Electromagnetic motive means
FR2308178A1 (fr) * 1975-04-16 1976-11-12 Bridon Engineering Ltd Perfectionnements aux dispositifs de commande
US4562385A (en) * 1983-10-17 1985-12-31 Rabson Thomas A Periodic reciprocating motor
DE4237165C1 (de) * 1992-11-04 1994-03-17 Reinhausen Maschf Scheubeck Einpoliger Stufenschalter mit linearer Kontaktbetätigung für einen Stufentransformator
DE102008049915A1 (de) * 2008-10-02 2010-04-08 Svm Schultz Verwaltungs-Gmbh & Co. Kg Elektromagnet
DE102009017197A1 (de) * 2009-04-09 2010-10-14 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Halbleiter-Schaltelementen

Also Published As

Publication number Publication date
DE102011109272A1 (de) 2013-02-07
DE102011109272B4 (de) 2015-05-13

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