EP2575153B1 - Schalterpoleinheit - Google Patents

Schalterpoleinheit Download PDF

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Publication number
EP2575153B1
EP2575153B1 EP12184683.6A EP12184683A EP2575153B1 EP 2575153 B1 EP2575153 B1 EP 2575153B1 EP 12184683 A EP12184683 A EP 12184683A EP 2575153 B1 EP2575153 B1 EP 2575153B1
Authority
EP
European Patent Office
Prior art keywords
movable contact
pole
contact
type switch
switch gear
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.)
Not-in-force
Application number
EP12184683.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2575153A3 (de
EP2575153A2 (de
Inventor
Stefan Bünger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fritz Driescher KG Spezialfabrik fur Elektrizitatswerksbedarf & Co KG GmbH
Original Assignee
Fritz Driescher KG Spezialfabrik fur Elektrizitatswerksbedarf & Co KG 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 Fritz Driescher KG Spezialfabrik fur Elektrizitatswerksbedarf & Co KG GmbH filed Critical Fritz Driescher KG Spezialfabrik fur Elektrizitatswerksbedarf & Co KG GmbH
Publication of EP2575153A2 publication Critical patent/EP2575153A2/de
Publication of EP2575153A3 publication Critical patent/EP2575153A3/de
Application granted granted Critical
Publication of EP2575153B1 publication Critical patent/EP2575153B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6667—Details concerning lever type driving rod arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/48—Driving mechanisms, i.e. for transmitting driving force to the contacts using lost-motion device

Definitions

  • the invention relates to a Wegerpolhow, in particular for a vacuum circuit breaker, with a vacuum interrupter chamber (2.1) with at least one fixed contact and at least one movable contact (2.2), in particular a bolt which can be brought via a drive in an on position.
  • Vacuum circuit breakers are electrical switches that are designed for high currents and separate an electrical connection in the appropriate vacuum interrupters.
  • a conventional vacuum switching chamber has a vacuum housing in which two contacts are arranged. One of the contacts is designed as a fixed contact and the other as a movable contact, usually in the form of a conductor pin.
  • In the closed switch state contact the two contacts and thus make an electrical connection. In this state, they are subjected to a continuous contact pressure, which presses the two contacts against each other with a defined force.
  • the moving contact is moved away from the fixed contact at high speed and an isolating distance is established between the two contacts.
  • the design requirements for the circuit breakers increase. Because the higher the voltage to be switched, the higher the required separation distance, the on and off speeds and the height of the contact pressure.
  • Another typical switch pole unit is from the DE 40 06 452 A1 known.
  • the driving forces are transmitted here by a switching rod on a control disk.
  • the control disk is rotatably mounted and has an arcuately curved LanglochausEnglishung.
  • the movable contact has a plunger, which engages in the oblong hole and thereby positively guided.
  • the movable contact which is linearly movable in the vacuum interrupter in the switch pole housing, placed in the "on" position and a Ausschaltfeder biased.
  • the friction losses are comparatively high, which leads to high wear of the mechanical components and to slow switching times.
  • a comparatively large angle of rotation of the control disk for the linear movement of the movable contact required for switching is necessary in the case of the positive guidance provided by the arcuate oblong slot recess, which likewise leads to increased switching times.
  • the present invention is therefore an object of the invention to provide a Heidelbergerpoltician whose structure meets the requirements of high voltage ranges and at the same time is simple.
  • a linear guide is here understood to mean a machine element from linear technology which permits frictionless translation of the movable contact or an associated drive element which moves linearly in the same direction and at the same time guarantees compliance with the direction of movement - a linear path.
  • the linear guide is designed as a recirculating ball bearing guide.
  • a recirculating ball bearing is characterized by low static and dynamic rolling friction, low wear and good guidance accuracy over the entire service life. moreover
  • the guide can absorb forces in two directions, making it a suitable linear guide for the application.
  • the achieved high guidance accuracy and the low friction values are achieved high speeds and a reduction of the mechanical load of the means that provide the movement of the contact.
  • a slide-mounted linear guide is also usable.
  • the switch pole unit according to the invention has a switch-off spring, which acts directly on the movable contact or an abutment rigidly fastened thereto.
  • the movable contact is in direct connection with the opening spring, which leads to rapid accelerations and off times.
  • a further preferred embodiment is characterized by a contact pressure acting on the movable contact, in particular when it is arranged axially aligned with the movable contact and acts in the axial direction on the movable contact.
  • the pivot point of the connecting rod is to be arranged below the contact pressure device on the longitudinal axis of the movement contact.
  • the position of the connecting rod should have the smallest possible angle of inclination to the movement contact in the switched-on switch state in order to obtain a good balance of power against the high contact pressure forces occurring at the end of the switching process.
  • connection between the connecting rod and a member on the side of the movable contact is preferably designed with a plain bearing or a still frictional rolling or ball bearing in order to further minimize friction losses.
  • the design according to the invention fulfills the requirements of high voltage ranges when using the standard drive. Consequently, can be dispensed with a significant change or the redesign of a drive, creating a significant cost advantage.
  • switch pole contents suitable for voltages of up to 40.5 kV or even higher can be designed.
  • the in the FIGS. 1 and 2 illustrated switch pole unit 1 has a vacuum switching chamber 2.1, which is arranged in a housing 3.
  • a vacuum switching chamber 2.1 which is arranged in a housing 3.
  • a first nut 4 which forms a lower contact surface for a Ausschaltfeder 5.
  • the upper contact surface for the opening spring 5 forms the housing 3, so that the movable contact 2.2 with the opening spring 5 are in direct operative connection with each other.
  • a flexible copper band 6 is connected to the movable contact 2.2, which is held on a cooperating with the nut 4 lower lock nut 7 on the movable contact 2.2.
  • the copper band 6 and the movable contact 2.2 are electrically connected to each other and form the lower terminal point of the switch pole unit 1.
  • the upper, with the fixed contact in the vacuum interrupter chamber connected terminal point of the switch pole unit is not
  • the contact pressure device has a threaded adapter 8, which is firmly connected to the movable contact 2.2.
  • the threaded adapter 8 is provided with an upper contact surface for a contact pressure spring 9, which is also part of the contact pressure device and is supported on its lower side on a piston-like drive element 10.
  • At the bottom of the threaded adapter 8, it has a guide pin 11, whose longitudinal axis is aligned with that of the movable contact 2.2.
  • the guide pin 11 is axially guided in a provided in the piston-like drive element 10 bushing 12 and freely movable in the axial direction. Since the drive element forms the lower bearing for the contact pressure spring 9, it is also considered as part of the contact pressure device.
  • the piston-like drive element 10 is guided by a linear guide 12 in the axial direction of the movable contact.
  • the linear guide is designed as a recirculating ball guide.
  • the piston-like drive element is connected via a connecting rod 13 with the crank arm 14 of a crankshaft 15.
  • the connecting rod is connected to the piston-like drive element 10 and the crank arm 14 via sliding or roller bearings.
  • the crankshaft 15 is made of a non-conductive material.
  • FIG. 2 shows the switch pole unit 1 in the on state.
  • a connecting rod with the piston cheek 14 connecting crank pin 16 has almost reached its highest point in this state, so that of the Ausschaltfeder 5 while a moment acts on the crankshaft 16, but the moment is as low as possible.
  • the drive should be locked by a suitable mechanism.
  • the shutdown is carried out by releasing this Ausschaltverrastung (or a sustained drive torque), whereby the entire unit due to the biased Ausschaltfeder 5 back to the initial state, the in FIG. 1 is shown is offset.
  • FIG. 3 shows a further embodiment, in which inertia and friction points are further reduced.
  • the Ausschaltverrastung 20 which is usually located in the drive outside the Heidelbergerpoltician, directly integrated in the Heidelbergerpolech 1.
  • the Ausschaltverrastung 20 is realized by a mounted in the housing 3 half-wave. After reaching the on position puts the crank arm 21 with a cam-like part 22 behind the half-wave, which faces the crank arm, and the on state is thus maintained.
  • the half-wave Ausschaltverrastung 20 is released and the mechanism is returned to the initial state due to the force of the opening spring.
  • the drive is designed so that the crankshaft 23 takes the connecting rod 13 only to behind the Ausschaltverrastung 20 and automatically returns from this position back to the starting point.
  • the crankshaft 23 is rotatably mounted in the crank arm 21, wherein on the inner bearing surface of the crank arm 21, a franking 24 is provided, in which a provided on the crankshaft 23 shaft pin 25 engages, so that the free path for rotation of the crankshaft 23rd is limited relative to the crank arm 21.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP12184683.6A 2011-09-30 2012-09-17 Schalterpoleinheit Not-in-force EP2575153B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011106188U DE202011106188U1 (de) 2011-09-30 2011-09-30 Schalterpoleinheit

Publications (3)

Publication Number Publication Date
EP2575153A2 EP2575153A2 (de) 2013-04-03
EP2575153A3 EP2575153A3 (de) 2015-03-04
EP2575153B1 true EP2575153B1 (de) 2017-07-19

Family

ID=46924312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12184683.6A Not-in-force EP2575153B1 (de) 2011-09-30 2012-09-17 Schalterpoleinheit

Country Status (3)

Country Link
EP (1) EP2575153B1 (da)
DE (1) DE202011106188U1 (da)
DK (1) DK2575153T3 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014212583A1 (de) 2014-06-30 2015-12-31 Siemens Aktiengesellschaft Vermeidung von Fehlausrichtungen einer Antriebsstange eines Leistungsschalters
FR3030103A1 (fr) * 2014-12-11 2016-06-17 Alstom Technology Ltd Disjoncteur a moyens de guidage limitant les frottements internes
WO2018027545A1 (zh) * 2016-08-09 2018-02-15 尚艳燕 一种电动平衡车及其踏板组件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55131919A (en) * 1979-03-30 1980-10-14 Mitsubishi Electric Corp Device for switching vacuum switch
DE2934776A1 (de) * 1979-08-28 1981-03-12 Siemens AG, 1000 Berlin und 8000 München Mittelspannungslasttrennschalter.
DD240801A1 (de) * 1985-09-06 1986-11-12 Ilmenau Tech Hochschule Schnellschalter

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE341491B (da) * 1969-05-09 1971-12-27 Skf Svenska Kullagerfab Ab
US3784774A (en) * 1972-08-21 1974-01-08 Ite Imperial Corp Vacuum circuit breaker current transfer and actuation
DE2949753A1 (de) * 1979-12-07 1981-06-11 Siemens AG, 1000 Berlin und 8000 München Hochspannungs-leistungsschalter
GB8819166D0 (en) * 1988-08-12 1988-09-14 Ass Elect Ind Magnetic actuator & permanent magnet
FR2655768B1 (fr) * 1989-12-13 1993-10-08 Merlin Gerin Interrupteur tripolaire a haute tension et a isolement gazeux.
DE4002934A1 (de) * 1990-02-01 1991-08-08 Sachsenwerk Ag Vakuumschalter
DE4006452A1 (de) 1990-03-01 1991-09-05 Driescher Eltech Werk Elektrischer schalter
DE19906156C2 (de) * 1999-02-10 2001-12-13 Siemens Ag Vakuumschalter mit mindestens einer Vakuumschaltkammer
DE29906480U1 (de) 1999-04-03 1999-09-09 SGM Schaltgeräte Bad Muskau GmbH, 02953 Bad Muskau Vakuum-Leistungsschalter
DE19959207C2 (de) * 1999-12-08 2001-10-18 Siemens Ag Vakuumschütz mit verschiebbarem Führungselement
CN2590157Y (zh) * 2002-12-10 2003-12-03 周鹤铭 高压隔离真空负荷开关联动操作机构
CN201327799Y (zh) * 2008-10-15 2009-10-14 镇江大全伊顿电器有限公司 断路器操纵机构脱扣装置
CN201417684Y (zh) * 2009-07-07 2010-03-03 涂大石 一种新型高压开关设备用电磁式操动机构

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55131919A (en) * 1979-03-30 1980-10-14 Mitsubishi Electric Corp Device for switching vacuum switch
DE2934776A1 (de) * 1979-08-28 1981-03-12 Siemens AG, 1000 Berlin und 8000 München Mittelspannungslasttrennschalter.
DD240801A1 (de) * 1985-09-06 1986-11-12 Ilmenau Tech Hochschule Schnellschalter

Also Published As

Publication number Publication date
EP2575153A3 (de) 2015-03-04
EP2575153A2 (de) 2013-04-03
DK2575153T3 (da) 2017-10-30
DE202011106188U1 (de) 2013-01-09

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