EP2528078A1 - Circuits de séparation pour caténaires - Google Patents

Circuits de séparation pour caténaires Download PDF

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Publication number
EP2528078A1
EP2528078A1 EP12003908A EP12003908A EP2528078A1 EP 2528078 A1 EP2528078 A1 EP 2528078A1 EP 12003908 A EP12003908 A EP 12003908A EP 12003908 A EP12003908 A EP 12003908A EP 2528078 A1 EP2528078 A1 EP 2528078A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact springs
pair
piston
blades
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.)
Granted
Application number
EP12003908A
Other languages
German (de)
English (en)
Other versions
EP2528078B1 (fr
Inventor
Stefan Dipl.-Ing. Wieduwilt
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.)
BICC Holdings GmbH
Original Assignee
BICC Holdings 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 BICC Holdings GmbH filed Critical BICC Holdings GmbH
Publication of EP2528078A1 publication Critical patent/EP2528078A1/fr
Application granted granted Critical
Publication of EP2528078B1 publication Critical patent/EP2528078B1/fr
Active 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
    • H01H33/008—Pedestal mounted switch gear combinations
    • 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
    • H01H33/02—Details
    • H01H33/42—Driving mechanisms

Definitions

  • the invention relates to a circuit breaker for overhead lines and a trolley pole with a circuit breaker.
  • High voltage electrical switches for high voltage systems are well known.
  • the known overhead contactor disconnectors of electrified webs have contact blades and contact springs which are engaged when the switch is closed. To open the switch, the contact blades and contact springs are disengaged.
  • the operation of the known circuit breaker for overhead lines is generally via a mechanical linkage that connects the arranged at the mast head disconnector with a lever on the mast base.
  • the disadvantage is that the mounting of the circuit breaker with the mechanical linkage is relatively expensive, since the installation includes not only the connection, but also the adjustment of moving parts.
  • the operation of the circuit breaker via a mechanical linkage requires a relatively bulky construction of the circuit breaker.
  • the mechanical linkage affects the appearance of the trolley mast.
  • the invention has for its object to provide a circuit breaker for overhead lines, which is easy to assemble on a trolley mast as a compact unit, without significantly affecting the appearance of the mast.
  • an object of the invention to provide a trolley mast with such a circuit breaker.
  • the overhead line circuit breaker has a base plate supporting at least a pair of contact blades and a pair of contact springs.
  • the pair of contact springs is pivotable and the pair of contact blades are stationary so that by pivoting the pivotable pair of contact springs, the contact blades and the contact springs can be engaged or disengaged.
  • An alternative embodiment provides the pivotable arrangement of the contact blades and the stationary arrangement of the contact springs.
  • a drive unit having a piston arranged above the base plate-cylinder assembly.
  • the piston-cylinder arrangement is on the one hand with the pivotable pair of contact springs or contact blades and on the other hand with the base plate in operative connection, so pivoted by retraction or extension of the piston of the piston-cylinder assembly, the pivotal pair of contact springs or contact blades becomes.
  • the actuation of the piston-cylinder arrangement can be carried out hydraulically, wherein the required hydraulic lines are easy to accommodate in the mast, without affecting the external appearance of the mast.
  • the circuit breaker can be delivered and assembled as a prefabricated unit.
  • the circuit breaker works largely maintenance and trouble-free.
  • the noise is relatively low when the circuit breaker is actuated.
  • the hydraulic lines are not electrically conductive, which also increases the safety of the disconnector.
  • circuit breaker according to the invention Another advantage of the circuit breaker according to the invention is that act on the supporting structure of the circuit breaker only relatively small mechanical forces, so that a projecting support structure that can withstand high forces, is not required. This also results in a compact design that does not significantly affect the visual appearance of the mast, especially in urban environments when using the circuit breaker in local traffic.
  • the piston-and-cylinder arrangement is arranged parallel to the base plate when the contact blades and the contact springs are engaged.
  • the piston-cylinder arrangement can also be inclined relative to the base plate as long as the piston-cylinder arrangement is located above the base plate. It is crucial that located next to or below the base plate actuators are not present. Consequently, the forces occurring during switching act only within the circuit breaker, so that the construction carrying the circuit breaker has to absorb only the dead weight of the circuit breaker.
  • the contact blades and the contact springs are secured to insulator caps, which are placed on insulators, which are used in Isolatorfactn.
  • the two contact blades or contact springs of the pivotable pair of contact blades or contact springs are inserted into an insulator receptacle of a common insulator and the contact blades or contact springs of the stationary pair of contact blades or contact springs respectively in insulator recordings of separate insulators.
  • the piston-cylinder arrangement is then preferably attached on the one hand to the insulator receptacle of the pivotable pair of contact blades or contact springs and on the other hand attached to the insulator receptacles of the stationary pair of contact blades or contact springs.
  • the piston-cylinder assembly is not attached to the insulator receptacles of the stationary pair of contact blades or contact springs, but on the base plate.
  • the piston-cylinder assembly is preferably both hingedly connected to the insulator receptacle of the pivotable pair of contact blades or contact springs and hingedly connected to the insulator receptacles of the stationary pair of contact blades or contact springs, so that the piston-cylinder arrangement with respect to the attachment points Can open and close the circuit breaker relative to the base plate.
  • a preferred embodiment of the circuit breaker provides that the pair of contact blades are fixed and the pair of contact springs are pivotally secured to the base plate, wherein the piston-cylinder assembly is on the one hand with the pair of contact springs and on the other hand with the base plate in operative connection.
  • a preferred embodiment of the circuit breaker therefore provides that the contact springs are pivotable and the contact blades are arranged stationary, wherein the length of the contact springs in the longitudinal direction is smaller than the length of the contact blades in the longitudinal direction.
  • the contact springs are relatively stiff and the contact blades form a large lever arm. If, due to the torsional forces occurring in the event of a short circuit, the contact blades are turned outwards, the contact springs can better absorb the torsional forces that occur due to the relatively large lever arm of the contact blades.
  • the relatively high stiffness of the contact springs in absorbing the torsional forces of advantage ..
  • the trolley mast according to the invention is characterized in that the mast has the circuit breaker according to the invention.
  • the base plate of the circuit breaker is supported by post insulators, which can be fixed to a plate. Since the circuit breaker according to the invention forms a compact unit and has to take only the weight of the circuit breaker, the fastening elements of the circuit breaker can be dimensioned relatively small in their outer dimensions.
  • a hydraulic unit may be provided at the mast base of the overhead line mast.
  • This hydraulic unit can be designed differently. For example, it is possible to provide only one hydraulic unit for the emergency operation in case of power failure, which has a manual pump to build up the hydraulic pressure in the hydraulic lines. But it can also be provided with a hydraulic pump with an electric pump to operate the circuit breaker automatically.
  • the circuit breaker 1 has a base plate 2 which in the present embodiment carries a pair 3 of contact blades 4A, 4B and a pair 5 of contact springs 6A, 6B.
  • the contact blades 4A, 4B are stationary and the contact springs 6A, 6B are pivotally mounted in isolation on the base plate 2, so that the contact blades and the contact springs can be engaged or disengaged.
  • the contact blades 4A, 4B and the contact springs 6A, 6B each have spark horns 7.
  • the length of the contact blades (4A, 4B) corresponds in the longitudinal direction 1.8 to 2.5, in particular 2.2, the length of the contact springs (6A, 6B ) longitudinal.
  • Fig. 1 shows the circuit breaker in the closed position in which the contact blades and contact springs are engaged during Fig. 2 shows the open position of the circuit breaker in which the contact blades and contact springs are disengaged.
  • a cylindrical insulator receptacle 9 is pivotally mounted, in which an insulator 10 is inserted, on which an insulator cap 11 is seated, which has a tab 11A, to which the two contact springs 6A, 6B are attached.
  • the contact springs 6A, 6B, together with the insulator 10 and the insulator receptacle 9 and the insulator cap 11 form a unit which can be pivoted relative to the stationary contact blades 4A, 4B.
  • the two contact blades 4A, 4B are respectively fixed to the tab 12AA, 12BB of the insulator cap 12A, 12B of an insulator 13A, 13B.
  • the insulators 13A, 13B are in turn each inserted into a cylindrical insulator receptacle 14A, 14B.
  • the contact blades 4A, 4B and the contact springs 6A, 6B are each aligned with each other, so that engage the contact springs in the contact blades when pivoting the contact springs.
  • the drive unit 8 for pivoting the contact springs relative to the contact blades has a piston-cylinder arrangement 15, which is arranged above the base plate 2.
  • the piston-cylinder assembly 15 is arranged parallel to the base plate 2.
  • the piston-cylinder assembly tilts slightly relative to the base plate ( Fig. 2 ).
  • the piston 15A of the piston-cylinder assembly 15 is pivotally connected to two tabs 9A, 9B, which are integrally formed on the insulator receptacle 9 of the insulator 10 of the contact springs 6A, 6B.
  • the insulator receivers 14A, 14B of the insulators 13A, 13B of the contact blades 4A, 4B have tabs 14AA, 14AB, 14BA, 14BB which receive a rod 16 to which the cylinder 15B of the piston-cylinder assembly 15 is hingedly connected.
  • the necessary hydraulic lines for actuating the preferably hydraulically actuated piston-cylinder arrangement 15 are not shown in the figures.
  • the piston-cylinder arrangement 15 is located above the base plate 2 between the insulators of the contact blades 4A, 4B and the contact springs 6A, 6B. This gives the circuit breaker a compact design. Extensive parts which extend laterally beyond the base plate 2 and upwards or downwards are not present. Also, no trusses are required to which moving parts are to be attached.
  • FIGS. 3 and 4 show the trolley pole together with the disconnector from different views.
  • the overhead line mast 17 is a known metal mast.
  • the base plate 2 of the circuit breaker 1 is supported by post insulators 18 fixed to the top of the mast head 17A.
  • Mastfuß 17B is behind a flap 19 in the FIGS. 3 and 4 invisible hydraulic unit 20 for actuating the piston-cylinder arrangement.
  • the hydraulic unit 18 is connected to the piston-cylinder arrangement 15 via hydraulic lines guided in the mast.
  • the hydraulic unit may have an operating unit, not shown, for the electrical actuation of a hydraulic pump, not shown. But it is also possible that the hydraulic unit has a hand pump, not shown, to build up the hydraulic pressure in the hydraulic lines.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
EP12003908.6A 2011-05-23 2012-05-18 Circuits de séparation pour caténaires Active EP2528078B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110102957 DE102011102957B4 (de) 2011-05-23 2011-05-23 Trennschalter für Oberleitungen

Publications (2)

Publication Number Publication Date
EP2528078A1 true EP2528078A1 (fr) 2012-11-28
EP2528078B1 EP2528078B1 (fr) 2013-11-27

Family

ID=46458094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12003908.6A Active EP2528078B1 (fr) 2011-05-23 2012-05-18 Circuits de séparation pour caténaires

Country Status (4)

Country Link
EP (1) EP2528078B1 (fr)
DE (1) DE102011102957B4 (fr)
DK (1) DK2528078T3 (fr)
ES (1) ES2448341T3 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200915B (de) * 1963-11-02 1965-09-16 Ruhrtal Elek Zitaetsgesellscha Kipp-Trennschalter
EP0118414A2 (fr) * 1983-02-03 1984-09-12 Siemens Aktiengesellschaft Österreich Interrupteur à cornes
DE19704933A1 (de) * 1997-02-10 1998-08-13 Abb Daimler Benz Transp Masttrennschalter
EP1164609A1 (fr) * 2000-06-15 2001-12-19 ABB T&D Technology AG Installation de coupure à haute tension

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955301B4 (de) * 1999-11-17 2007-11-15 Bicc Holdings Gmbh Schalterfernantrieb

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200915B (de) * 1963-11-02 1965-09-16 Ruhrtal Elek Zitaetsgesellscha Kipp-Trennschalter
EP0118414A2 (fr) * 1983-02-03 1984-09-12 Siemens Aktiengesellschaft Österreich Interrupteur à cornes
DE19704933A1 (de) * 1997-02-10 1998-08-13 Abb Daimler Benz Transp Masttrennschalter
EP1164609A1 (fr) * 2000-06-15 2001-12-19 ABB T&D Technology AG Installation de coupure à haute tension

Also Published As

Publication number Publication date
ES2448341T3 (es) 2014-03-13
DK2528078T3 (da) 2014-02-17
DE102011102957A1 (de) 2012-11-29
DE102011102957B4 (de) 2012-12-13
EP2528078B1 (fr) 2013-11-27

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