EP3161845A1 - Static arc-striking contact assembly and grounding switch thereof - Google Patents

Static arc-striking contact assembly and grounding switch thereof

Info

Publication number
EP3161845A1
EP3161845A1 EP15731362.8A EP15731362A EP3161845A1 EP 3161845 A1 EP3161845 A1 EP 3161845A1 EP 15731362 A EP15731362 A EP 15731362A EP 3161845 A1 EP3161845 A1 EP 3161845A1
Authority
EP
European Patent Office
Prior art keywords
contact
arc
static
striking
striking contact
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
EP15731362.8A
Other languages
German (de)
French (fr)
Other versions
EP3161845B1 (en
Inventor
Hui Wang
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to PL15731362T priority Critical patent/PL3161845T3/en
Publication of EP3161845A1 publication Critical patent/EP3161845A1/en
Application granted granted Critical
Publication of EP3161845B1 publication Critical patent/EP3161845B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
    • 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
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring

Definitions

  • the present invention relates to a static arc-striking contact assembly, in particular a static arc-striking contact assembly for a high-voltage switch in an electrical power system.
  • the present invention also relates to a grounding switch employing such a static arc-striking contact assembly.
  • a high-voltage switch in an electrical power system such as an isolating switch for power transmission and transformation, has a grounding switch incorporated therein.
  • a grounding switch is a mechanical switch for a grounded part of a circuit, and must be able to bear current under abnormal conditions for a given period of time, but need not bear current in normal operation.
  • a grounding switch must be closed in each direction in which electricity might be delivered to powered-off equipment if there is a possibility that it might produce an induced voltage, in order to prevent a sudden return of power during overhaul from endangering the life of associated personnel.
  • Conventional grounding switches are not required to have an arc-striking device.
  • Chinese utility model patent CN201804780 has disclosed a high- voltage grounding switch arc-striking device, wherein an arc- striking contact is installed below a grounding contact, and an arc-striking plate is provided on a grounding contact finger. During closing of the grounding switch, an arc is produced between the arc-striking contact and the arc-striking plate which come into contact first, with the grounding contact and the grounding contact finger coming into contact subsequently.
  • Such a high-voltage grounding switch arc-striking device can satisfy technical requirements at lower voltage ratings, but in the case of higher voltage ratings, such as voltage ratings of about 500 kV and above, associated problems such as insufficient insulation distance may occur.
  • An object of the present invention is to provide a static arc- striking contact assembly, which can be used for higher voltage ratings, operates reliably, and has low costs.
  • a static arc-striking contact assembly comprises a housing, a shaft, a static arc-striking contact and a spring, wherein the housing has an opening.
  • One end of the static arc-striking contact extends into the opening and is rotatably connected to the housing by means of the shaft.
  • the spring is connected to the housing and causes the static arc-striking contact to be deflected towards one side of the opening.
  • Such a static arc- striking contact assembly has a simple structure and low costs, operates reliably and can be conveniently installed independently of main contacts of the switch, and is especially suitable for switches having high voltage ratings.
  • said end of the static arc- striking contact is fixed to the shaft, the shaft is rotatably connected to the housing, and the spring causes the static arc- striking contact to be deflected towards one side of the opening by restricting the rotation of the static arc-striking contact.
  • the application of force to the static arc-striking contact by the spring not only ensures that the arc-striking contacts come into contact before the main contacts, but also ensures reliable contact therebetween.
  • the housing consists of two half-shells, with two spacer blocks being provided between the two half-shells, and the two half-shells being fixed to the two spacer blocks.
  • the combination of the two half-shells and the spacer blocks facilitates assembly of the static arc-striking contact assembly.
  • a ball head is fixed to another end of the static arc-striking contact.
  • the ball head helps to reduce or eliminate the effect of discharge from a possible pointed end on normal operation of the switch.
  • the static arc-striking contact assembly further comprises an insulating sleeve fixed to the static arc-striking contact.
  • the insulating sleeve ensures that current no longer flows through the moving arc-striking contact and static arc-striking contact once the main contacts are connected.
  • the grounding switch further comprises a conductive braid which connects the housing and the static arc-striking contact electrically. The conductive braid helps to make the electrical connection between the housing and the static arc-striking contact reliable.
  • Another object of the present invention is to provide a grounding switch which can be used for a higher voltage rating, operates reliably and has low costs.
  • a grounding switch comprises an insulator, a wiring terminal, a static contact, a moving contact, a moving arc-striking contact, two equalizing rings, and a static arc-striking contact assembly as described above, wherein the wiring terminal is fixed to the top of the insulator.
  • the static arc-striking contact assembly is connected between one side of the wiring terminal and one of the equalizing rings, and the other of the equalizing rings is connected on the other side of the wiring terminal.
  • the static contact is connected between the wiring terminal and the static arc-striking contact assembly, the positions of the moving contact and the moving arc-striking contact corresponding to the static contact and the static arc- striking contact assembly, respectively.
  • the moving arc-striking contact and the static arc-striking contact assembly come into contact before the static contact and the moving contact.
  • the moving arc-striking contact and the static arc- striking contact assembly separate after the static contact and the moving contact.
  • the wiring terminal and static arc-striking contact assembly of such a grounding switch have a simple structure and low costs, and operate reliably, and the static arc-striking contact assembly can be conveniently installed independently of main contacts of the switch, and is especially suitable for switches having high voltage ratings.
  • the position of the insulating sleeve is set such that during closing of the grounding switch, the moving arc- striking contact slides along the surface of the static arc- striking contact after coming into contact with the static arc- striking contact, until the static contact and the moving contact have come into proper contact, and then the moving arc-striking contact remains on the insulating sleeve; when the process of opening the grounding switch begins, the moving arc-striking contact and the static arc-striking contact immediately re ⁇ establish contact, and only separate once the static contact and the moving contact have completely separated. Setting the position of the insulating sleeve in this way ensures that current no longer flows through the arc-striking contacts once the main contacts are connected.
  • the wiring terminal comprises a connecting arm, a wiring plate and a pedestal, the connecting arm being fixed between the wiring plate and the pedestal, one end of the connecting arm being connected to the static arc-striking contact assembly, the static contact being fixed to the connecting arm and disposed close to the static arc-striking contact assembly, and the pedestal being fixed to the insulator.
  • the pedestal helps to ensure creepage distance between the insulator and other parts of the switch.
  • the connecting arm is welded to the wiring plate, and the wiring plate is fixed to the pedestal by means of at least one sleeve, said one end of the connecting arm being connected to one of the equalizing rings by means of the static arc-striking contact assembly, and another end of the connecting arm being connected to the other of the equalizing rings.
  • Welded and connected wiring terminals have lower costs and operate reliably .
  • Fig. 1 is a three-dimensional schematic diagram of a grounding switch according to an embodiment of the present invention
  • Fig. 2 is an exploded schematic diagram of the grounding switch in Fig. 1 ;
  • Fig. 3 is an exploded schematic diagram of the wiring terminal in Fig. 1 ;
  • Fig. 4 is an exploded schematic diagram of the static arc- striking contact assembly in Fig. 1 ;
  • Fig. 5 further displays the static arc-striking contact assembly in Fig . 4.
  • Figs. 1 and 2 display the grounding switch 1 of the present invention, which has a static arc-striking contact assembly 11 as shown in Figs. 4 and 5.
  • the static arc-striking contact assembly 11 comprises a housing 111, a shaft 112, a static arc- striking contact 113 and a spring 114, wherein the housing 111 has an opening.
  • One end of the static arc-striking contact 113 extends into the opening and is rotatably connected to the housing 111 by means of the shaft 112.
  • a ball head 116 is fixed to the other end of the static arc-striking contact 113.
  • the ball head 116 is generally made of metal, and helps to reduce or eliminate the effect of discharge from a possible pointed end on normal operation of the switch.
  • the spring 114 is connected to the housing 111 and causes the static arc-striking contact 113 to be deflected towards one side of the opening.
  • the end of the static arc-striking contact 113 that extends into the opening may be fixed to the shaft 112, e.g. fixed to a middle part of the shaft 112 by a snap connection or a threaded connection (e.g. by fitting a nut to a thread on the static arc- striking contact 113) , with the shaft 112 being rotatably connected to the housing 111, e.g. if the two ends of the shaft
  • the spring 114 may be a torsion spring, but may also be another spring capable of realizing the same function. As Fig.
  • the housing 111 consists of two half-shells, with two spacer blocks 115 being provided between the two half-shells, wherein the two half-shells are fixed to the two spacer blocks 115 by means of bolts or screws (not shown) passing through holes 1111 in the half-shells, and when necessary further fixed to one end 1311 of a connecting arm 131 of a wiring terminal 13 on the grounding switch 1.
  • the half-shells and spacer blocks are all of metal material.
  • the housing 111 may also take another form, e.g. a one-piece element formed by casting so as to include the half- shells and the spacer blocks.
  • the static arc-striking contact assembly 11 may further comprise an insulating sleeve 118.
  • the insulating sleeve 118 is fixed to the static arc-striking contact 113, and used to realize insulation between a moving arc-striking contact 141 and the static arc-striking contact 113 once a static contact 12 and a moving contact 142 are in proper contact, so as to ensure that current no longer flows through the moving arc-striking contact 141 and static arc-striking contact 113 once the main contacts are connected, but the insulating sleeve 118 is not necessary.
  • Figs. 1 and 2 show a grounding switch 1.
  • the grounding switch 1 comprises an insulator 153, a wiring terminal 13, a static contact 12, a moving contact 142, a moving arc-striking contact 141, two equalizing rings 151 and 152, and a static arc-striking contact assembly 11 as described above, wherein the wiring terminal 13 is fixed to the top of the insulator 153.
  • the static arc-striking contact assembly 11 is connected between one side of the wiring terminal 13 and equalizing ring 151, more specifically connected between one end 1311 of the connecting arm 131 and equalizing ring 151 by means of the holes 1111 in the housing 111, and equalizing ring 152 is connected on the other side of the wiring terminal 13.
  • the moving arc-striking contact 141 is fixed to a rod 14 by means of a moving arc- striking contact connecting piece 143, and is kept at a suitable distance from the moving contact 142.
  • the static contact 12 is connected between the wiring terminal 13 and the static arc- striking contact assembly 11.
  • the positions of the moving contact 142 and moving arc-striking contact 141 correspond to the static contact 12 and the static arc-striking contact assembly 11, respectively.
  • the moving arc-striking contact 141 and static arc-striking contact assembly 11 come into contact before the static contact 12 and moving contact 142.
  • the moving arc-striking contact 141 and static arc-striking contact assembly 11 separate after the static contact 12 and moving contact 142. Since the spring 114 causes the static arc- striking contact 113 to be deflected towards the side of the opening which faces the moving arc-striking contact 141, the distance between the moving arc-striking contact 141 and static arc-striking contact assembly 11 is smaller than the distance between the static contact 12 and moving contact 142; therefore during closing of the grounding switch, the moving arc-striking contact 141 and static arc-striking contact assembly 11 come into contact first relative to the static contact 12 and moving contact 142, but separate later during opening of the grounding switch, thereby avoiding ablation of the static contact 12 and moving contact 142 by an arc during this process.
  • the position of the insulating sleeve 118 is set such that during closing of the grounding switch 1, the moving arc-striking contact 141 slides along the surface of the static arc-striking contact 113 after coming into contact with the static arc-striking contact 113, until the static contact 12 and moving contact 142 have come into proper contact, and then the moving arc-striking contact remains on the insulating sleeve 118.
  • the moving arc-striking contact 141 and static arc-striking contact 113 immediately re-establish contact, and only separate once the static contact 12 and moving contact 142 have completely separated. Thus it is ensured that current no longer flows through the arc-striking contacts once the main contacts are connected.
  • the spring 114 causes the static arc-striking contact 113 to be deflected towards the side of the opening which faces the moving arc-striking contact 141, there is always an action/reaction force pair between the moving arc-striking contact 141 and static arc-striking contact 113 throughout the process of contact between the moving arc-striking contact 141 and static arc-striking contact 113, so that reliable contact is ensured between the moving arc-striking contact 141 and static arc-striking contact 113.
  • Fig. 3 further displays the wiring terminal 13.
  • the wiring terminal 13 comprises a connecting arm 131, a wiring plate 132 and a pedestal 133, wherein the connecting arm 131 and wiring plate 132 may be made of aluminium, while the pedestal 133 may be made of steel. Holes 1322 in the wiring plate 132 are used for further wiring of the wiring terminal 13.
  • the connecting arm 131 is fixed between the wiring plate 132 and pedestal 133, while the pedestal 133 is fixed to the insulator 153 by bolts (not shown) .
  • One end 1311 of the connecting arm 131 is connected to the static arc-striking contact assembly 11.
  • a body 121 of the static contact 12 is fixed to the connecting arm 131 by means of a static contact connecting piece 122 and disposed close to the static arc-striking contact assembly 11.
  • the connecting arm 131 may be connected to the wiring plate 132 by welding, but may also be riveted or connected by bolts.
  • the wiring plate 132 may be fixed to the pedestal 133 by bolts (not shown) passing through four sleeves 134 as shown in Fig. 3, or in an embodiment which is not shown, fixed by means of one sleeve having a number of holes; alternatively, the connecting arm, wiring plate and pedestal may be made as one integrally cast component, but a welded or connected wiring terminal has a lower cost, and can be installed with greater flexibility and convenience.
  • One end 1311 of the connecting arm 131 is connected to equalizing ring 151 by means of the static arc-striking contact assembly 11, while another end 1312 of the connecting arm 131 is connected to equalizing ring 152 directly.
  • the moving arc-striking contact 141 which is fixed to the moving contact 142 approaches the static arc-striking contact 113 of the static arc-striking contact assembly 11 first, so that the moving contact 142 only comes into contact with the static contact 12 once the moving arc-striking contact 141 has come into contact with the static arc-striking contact 113.
  • the moving contact 142 breaks contact with the static contact 12 first, and the moving arc-striking contact 141 only breaks contact with the static arc-striking contact 113 when the moving contact 142 has reached a certain distance from the static contact 12; before the moving arc-striking contact 141 and static arc-striking contact 113 are completely disconnected, an arc forms therebetween.
  • the grounding switch of the present invention has a simple structure and operates reliably, and thereby realizes reliable closing and disconnection of the grounding switch at a low cost, avoiding ablation of the moving contact and static contact by an arc.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The present invention relates to a static arc-striking contact assembly, comprising a housing, a shaft, a static arc-striking contact and a spring, wherein the housing has an opening. One end of the static arc-striking contact extends into the opening and is rotatably connected to the housing by means of the shaft. The spring is connected to the housing and causes the static arc-striking contact to be deflected towards one side of the opening. The present invention also relates to a grounding switch comprising the static arc-striking contact assembly. The static arc-striking contact assembly and grounding switch thereof of the present invention can be used for higher voltage ratings, operate reliably and have low costs.

Description

Description
Static arc-striking contact assembly and grounding switch thereof
Technical field
The present invention relates to a static arc-striking contact assembly, in particular a static arc-striking contact assembly for a high-voltage switch in an electrical power system. In addition, the present invention also relates to a grounding switch employing such a static arc-striking contact assembly.
Background art
A high-voltage switch in an electrical power system, such as an isolating switch for power transmission and transformation, has a grounding switch incorporated therein. A grounding switch is a mechanical switch for a grounded part of a circuit, and must be able to bear current under abnormal conditions for a given period of time, but need not bear current in normal operation. During overhaul of electrical equipment, a grounding switch must be closed in each direction in which electricity might be delivered to powered-off equipment if there is a possibility that it might produce an induced voltage, in order to prevent a sudden return of power during overhaul from endangering the life of associated personnel. Conventional grounding switches are not required to have an arc-striking device. However, as electrical power systems have developed, power transmission and transformation at ultra-high voltages has been vigorously popularized. In order to solve the problem of ever scarcer power transmission and transformation corridors, double-circuit power transmission lines are often used. Since the distance between conductive wires in a double-circuit power transmission line is very short, significant electromagnetic and electrostatic coupling exists between conductive wires and between conductive wire and ground. To ensure reliability and safety during overhaul, it is required that grounding switches used on the line have the ability to switch induced current, therefore an arc-striking device must be provided.
Chinese utility model patent CN201804780 has disclosed a high- voltage grounding switch arc-striking device, wherein an arc- striking contact is installed below a grounding contact, and an arc-striking plate is provided on a grounding contact finger. During closing of the grounding switch, an arc is produced between the arc-striking contact and the arc-striking plate which come into contact first, with the grounding contact and the grounding contact finger coming into contact subsequently. Such a high-voltage grounding switch arc-striking device can satisfy technical requirements at lower voltage ratings, but in the case of higher voltage ratings, such as voltage ratings of about 500 kV and above, associated problems such as insufficient insulation distance may occur.
Content of the invention
An object of the present invention is to provide a static arc- striking contact assembly, which can be used for higher voltage ratings, operates reliably, and has low costs. Such a static arc-striking contact assembly comprises a housing, a shaft, a static arc-striking contact and a spring, wherein the housing has an opening. One end of the static arc-striking contact extends into the opening and is rotatably connected to the housing by means of the shaft. The spring is connected to the housing and causes the static arc-striking contact to be deflected towards one side of the opening. Such a static arc- striking contact assembly has a simple structure and low costs, operates reliably and can be conveniently installed independently of main contacts of the switch, and is especially suitable for switches having high voltage ratings.
According to one aspect of the static arc-striking contact assembly of the present invention, said end of the static arc- striking contact is fixed to the shaft, the shaft is rotatably connected to the housing, and the spring causes the static arc- striking contact to be deflected towards one side of the opening by restricting the rotation of the static arc-striking contact. The application of force to the static arc-striking contact by the spring not only ensures that the arc-striking contacts come into contact before the main contacts, but also ensures reliable contact therebetween.
According to another aspect of the static arc-striking contact assembly of the present invention, the housing consists of two half-shells, with two spacer blocks being provided between the two half-shells, and the two half-shells being fixed to the two spacer blocks. The combination of the two half-shells and the spacer blocks facilitates assembly of the static arc-striking contact assembly.
According to another aspect of the static arc-striking contact assembly of the present invention, a ball head is fixed to another end of the static arc-striking contact. The ball head helps to reduce or eliminate the effect of discharge from a possible pointed end on normal operation of the switch.
According to another aspect of the static arc-striking contact assembly of the present invention, the static arc-striking contact assembly further comprises an insulating sleeve fixed to the static arc-striking contact. The insulating sleeve ensures that current no longer flows through the moving arc-striking contact and static arc-striking contact once the main contacts are connected. According to another aspect of the static arc-striking contact assembly of the present invention, the grounding switch further comprises a conductive braid which connects the housing and the static arc-striking contact electrically. The conductive braid helps to make the electrical connection between the housing and the static arc-striking contact reliable.
Another object of the present invention is to provide a grounding switch which can be used for a higher voltage rating, operates reliably and has low costs. Such a grounding switch comprises an insulator, a wiring terminal, a static contact, a moving contact, a moving arc-striking contact, two equalizing rings, and a static arc-striking contact assembly as described above, wherein the wiring terminal is fixed to the top of the insulator. The static arc-striking contact assembly is connected between one side of the wiring terminal and one of the equalizing rings, and the other of the equalizing rings is connected on the other side of the wiring terminal. The static contact is connected between the wiring terminal and the static arc-striking contact assembly, the positions of the moving contact and the moving arc-striking contact corresponding to the static contact and the static arc- striking contact assembly, respectively. During closing of the grounding switch, the moving arc-striking contact and the static arc-striking contact assembly come into contact before the static contact and the moving contact. During opening of the grounding switch, the moving arc-striking contact and the static arc- striking contact assembly separate after the static contact and the moving contact. The wiring terminal and static arc-striking contact assembly of such a grounding switch have a simple structure and low costs, and operate reliably, and the static arc-striking contact assembly can be conveniently installed independently of main contacts of the switch, and is especially suitable for switches having high voltage ratings. According to one aspect of the grounding switch of the present invention, the position of the insulating sleeve is set such that during closing of the grounding switch, the moving arc- striking contact slides along the surface of the static arc- striking contact after coming into contact with the static arc- striking contact, until the static contact and the moving contact have come into proper contact, and then the moving arc-striking contact remains on the insulating sleeve; when the process of opening the grounding switch begins, the moving arc-striking contact and the static arc-striking contact immediately re¬ establish contact, and only separate once the static contact and the moving contact have completely separated. Setting the position of the insulating sleeve in this way ensures that current no longer flows through the arc-striking contacts once the main contacts are connected.
According to another aspect of the grounding switch of the present invention, the wiring terminal comprises a connecting arm, a wiring plate and a pedestal, the connecting arm being fixed between the wiring plate and the pedestal, one end of the connecting arm being connected to the static arc-striking contact assembly, the static contact being fixed to the connecting arm and disposed close to the static arc-striking contact assembly, and the pedestal being fixed to the insulator. The pedestal helps to ensure creepage distance between the insulator and other parts of the switch.
According to another aspect of the grounding switch of the present invention, the connecting arm is welded to the wiring plate, and the wiring plate is fixed to the pedestal by means of at least one sleeve, said one end of the connecting arm being connected to one of the equalizing rings by means of the static arc-striking contact assembly, and another end of the connecting arm being connected to the other of the equalizing rings. Welded and connected wiring terminals have lower costs and operate reliably .
The explanation above is merely an overview of the technical solution of the present invention. Preferred embodiments are given below and explained in detail in conjunction with the accompanying drawings, to enable the technical approach of the present invention to be understood more clearly and implemented according to the content of the description, and to enable the abovementioned and other objects, features and advantages of the present invention to be more obvious and easy to understand.
Description of the accompanying drawings
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, to give those skilled in the art a clearer understanding of the abovementioned and other features and advantages of the present invention. Specifically:
Fig. 1 is a three-dimensional schematic diagram of a grounding switch according to an embodiment of the present invention;
Fig. 2 is an exploded schematic diagram of the grounding switch in Fig. 1 ;
Fig. 3 is an exploded schematic diagram of the wiring terminal in Fig. 1 ;
Fig. 4 is an exploded schematic diagram of the static arc- striking contact assembly in Fig. 1 ;
Fig. 5 further displays the static arc-striking contact assembly in Fig . 4. Key to labels in the accompanying drawings:
Particular embodiments
The present invention is explained in further detail below by way of embodiments, to clarify the object, technical solution and advantages thereof.
Figs. 1 and 2 display the grounding switch 1 of the present invention, which has a static arc-striking contact assembly 11 as shown in Figs. 4 and 5. The static arc-striking contact assembly 11 comprises a housing 111, a shaft 112, a static arc- striking contact 113 and a spring 114, wherein the housing 111 has an opening. One end of the static arc-striking contact 113 extends into the opening and is rotatably connected to the housing 111 by means of the shaft 112. A ball head 116 is fixed to the other end of the static arc-striking contact 113. The ball head 116 is generally made of metal, and helps to reduce or eliminate the effect of discharge from a possible pointed end on normal operation of the switch. In addition, those skilled in the art will understand that the same or a similar effect could also be achieved by setting the shape of the other end of the static arc-striking contact 113, rather than by means of the ball head 116. The spring 114 is connected to the housing 111 and causes the static arc-striking contact 113 to be deflected towards one side of the opening.
The end of the static arc-striking contact 113 that extends into the opening may be fixed to the shaft 112, e.g. fixed to a middle part of the shaft 112 by a snap connection or a threaded connection (e.g. by fitting a nut to a thread on the static arc- striking contact 113) , with the shaft 112 being rotatably connected to the housing 111, e.g. if the two ends of the shaft
112 as shown in Fig. 5 have bosses for insertion into holes 1112 in the housing 111, then axial movement of the shaft 112 can be restricted after installation without the need for any additional component. The spring 114 causes the static arc-striking contact
113 to be deflected towards one side of the opening by restricting the rotation of the static arc-striking contact 113, but the method (not shown) of restricting rotation of the shaft 112 could also be employed to cause the static arc-striking contact 113 to be deflected towards one side of the opening. The spring 114 may be a torsion spring, but may also be another spring capable of realizing the same function. As Fig. 4 shows, the housing 111 consists of two half-shells, with two spacer blocks 115 being provided between the two half-shells, wherein the two half-shells are fixed to the two spacer blocks 115 by means of bolts or screws (not shown) passing through holes 1111 in the half-shells, and when necessary further fixed to one end 1311 of a connecting arm 131 of a wiring terminal 13 on the grounding switch 1. The half-shells and spacer blocks are all of metal material. In an embodiment of the present invention which is not shown, the housing 111 may also take another form, e.g. a one-piece element formed by casting so as to include the half- shells and the spacer blocks.
The static arc-striking contact assembly 11 may further comprise an insulating sleeve 118. The insulating sleeve 118 is fixed to the static arc-striking contact 113, and used to realize insulation between a moving arc-striking contact 141 and the static arc-striking contact 113 once a static contact 12 and a moving contact 142 are in proper contact, so as to ensure that current no longer flows through the moving arc-striking contact 141 and static arc-striking contact 113 once the main contacts are connected, but the insulating sleeve 118 is not necessary.
Figs. 1 and 2 show a grounding switch 1. The grounding switch 1 comprises an insulator 153, a wiring terminal 13, a static contact 12, a moving contact 142, a moving arc-striking contact 141, two equalizing rings 151 and 152, and a static arc-striking contact assembly 11 as described above, wherein the wiring terminal 13 is fixed to the top of the insulator 153. The static arc-striking contact assembly 11 is connected between one side of the wiring terminal 13 and equalizing ring 151, more specifically connected between one end 1311 of the connecting arm 131 and equalizing ring 151 by means of the holes 1111 in the housing 111, and equalizing ring 152 is connected on the other side of the wiring terminal 13. The moving arc-striking contact 141 is fixed to a rod 14 by means of a moving arc- striking contact connecting piece 143, and is kept at a suitable distance from the moving contact 142. The static contact 12 is connected between the wiring terminal 13 and the static arc- striking contact assembly 11. The positions of the moving contact 142 and moving arc-striking contact 141 correspond to the static contact 12 and the static arc-striking contact assembly 11, respectively. During closing of the grounding switch 1, the moving arc-striking contact 141 and static arc-striking contact assembly 11 come into contact before the static contact 12 and moving contact 142. During opening of the grounding switch 1, the moving arc-striking contact 141 and static arc-striking contact assembly 11 separate after the static contact 12 and moving contact 142. Since the spring 114 causes the static arc- striking contact 113 to be deflected towards the side of the opening which faces the moving arc-striking contact 141, the distance between the moving arc-striking contact 141 and static arc-striking contact assembly 11 is smaller than the distance between the static contact 12 and moving contact 142; therefore during closing of the grounding switch, the moving arc-striking contact 141 and static arc-striking contact assembly 11 come into contact first relative to the static contact 12 and moving contact 142, but separate later during opening of the grounding switch, thereby avoiding ablation of the static contact 12 and moving contact 142 by an arc during this process. Moreover, since a suitable distance is maintained between the arc-striking contacts (i.e. the moving arc-striking contact 141 and static arc-striking contact 113) and the main contacts (i.e. the static contact 12 and moving contact 142), breakdown and/or ablation therebetween is avoided to the greatest extent possible.
In an embodiment in which the static arc-striking contact assembly 11 comprises an insulating sleeve 118, the position of the insulating sleeve 118 is set such that during closing of the grounding switch 1, the moving arc-striking contact 141 slides along the surface of the static arc-striking contact 113 after coming into contact with the static arc-striking contact 113, until the static contact 12 and moving contact 142 have come into proper contact, and then the moving arc-striking contact remains on the insulating sleeve 118. When the process of opening the grounding switch 1 begins, the moving arc-striking contact 141 and static arc-striking contact 113 immediately re-establish contact, and only separate once the static contact 12 and moving contact 142 have completely separated. Thus it is ensured that current no longer flows through the arc-striking contacts once the main contacts are connected. Since the spring 114 causes the static arc-striking contact 113 to be deflected towards the side of the opening which faces the moving arc-striking contact 141, there is always an action/reaction force pair between the moving arc-striking contact 141 and static arc-striking contact 113 throughout the process of contact between the moving arc-striking contact 141 and static arc-striking contact 113, so that reliable contact is ensured between the moving arc-striking contact 141 and static arc-striking contact 113.
Fig. 3 further displays the wiring terminal 13. The wiring terminal 13 comprises a connecting arm 131, a wiring plate 132 and a pedestal 133, wherein the connecting arm 131 and wiring plate 132 may be made of aluminium, while the pedestal 133 may be made of steel. Holes 1322 in the wiring plate 132 are used for further wiring of the wiring terminal 13. The connecting arm 131 is fixed between the wiring plate 132 and pedestal 133, while the pedestal 133 is fixed to the insulator 153 by bolts (not shown) . One end 1311 of the connecting arm 131 is connected to the static arc-striking contact assembly 11. A body 121 of the static contact 12 is fixed to the connecting arm 131 by means of a static contact connecting piece 122 and disposed close to the static arc-striking contact assembly 11. The connecting arm 131 may be connected to the wiring plate 132 by welding, but may also be riveted or connected by bolts. The wiring plate 132 may be fixed to the pedestal 133 by bolts (not shown) passing through four sleeves 134 as shown in Fig. 3, or in an embodiment which is not shown, fixed by means of one sleeve having a number of holes; alternatively, the connecting arm, wiring plate and pedestal may be made as one integrally cast component, but a welded or connected wiring terminal has a lower cost, and can be installed with greater flexibility and convenience. One end 1311 of the connecting arm 131 is connected to equalizing ring 151 by means of the static arc-striking contact assembly 11, while another end 1312 of the connecting arm 131 is connected to equalizing ring 152 directly.
During closing of the grounding switch of the present invention, the moving arc-striking contact 141 which is fixed to the moving contact 142 approaches the static arc-striking contact 113 of the static arc-striking contact assembly 11 first, so that the moving contact 142 only comes into contact with the static contact 12 once the moving arc-striking contact 141 has come into contact with the static arc-striking contact 113. During opening of the grounding switch of the present invention, the moving contact 142 breaks contact with the static contact 12 first, and the moving arc-striking contact 141 only breaks contact with the static arc-striking contact 113 when the moving contact 142 has reached a certain distance from the static contact 12; before the moving arc-striking contact 141 and static arc-striking contact 113 are completely disconnected, an arc forms therebetween. The grounding switch of the present invention has a simple structure and operates reliably, and thereby realizes reliable closing and disconnection of the grounding switch at a low cost, avoiding ablation of the moving contact and static contact by an arc.
The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit it. Any amendments, equivalent substitutions or improvements etc. made within the spirit and principles of the present invention should be included in the scope of protection thereof.

Claims

Claims
1. A static arc-striking contact assembly, comprising a housing (111), a shaft (112), a static arc-striking contact (113) and a spring (114), wherein the housing (111) has an opening, one end of the static arc-striking contact (113) extends into the opening and is rotatably connected to the housing (111) by means of the shaft (112), the spring (114) is connected to the housing (111) and causes the static arc-striking contact (113) to be deflected towards one side of the opening.
2. The static arc-striking contact assembly as claimed in claim
1, wherein said end of the static arc-striking contact (113) is fixed to the shaft (112), the shaft (112) is rotatably connected to the housing (111), and the spring (114) causes the static arc-striking contact (113) to be deflected towards one side of the opening by restricting the rotation of the static arc- striking contact (113) .
3. The static arc-striking contact assembly as claimed in claim
2, wherein the housing (111) consists of two half-shells, with two spacer blocks (115) being provided between the two half- shells, and the two half-shells being fixed to the two spacer blocks (115) .
4. The static arc-striking contact assembly as claimed in any one of claims 1 to 3, wherein a ball head (116) is fixed to another end of the static arc-striking contact (113) .
5. The static arc-striking contact assembly as claimed in claim 4, wherein the static arc-striking contact assembly (11) further comprises an insulating sleeve (118) fixed to the static arc- striking contact (113) .
6. The grounding switch as claimed in claim 4, wherein the grounding switch further comprises a conductive braid (117) which connects the housing (111) and the static arc-striking contact (113) electrically.
7. A grounding switch, comprising an insulator (153), a wiring terminal (13), a static contact (12), a moving contact (142), a moving arc-striking contact (141), two equalizing rings (151, 152), and a static arc-striking contact assembly (11) as claimed in any one of claims 1 to 6, wherein the wiring terminal (13) is fixed to the top of the insulator (153), the static arc-striking contact assembly (11) is connected between one side of the wiring terminal (13) and one (151) of the equalizing rings, and the other (152) of the equalizing rings is connected on the other side of the wiring terminal (13); the static contact (12) is connected between the wiring terminal (13) and the static arc- striking contact assembly (11), the positions of the moving contact (142) and the moving arc-striking contact (141) corresponding to the static contact (12) and the static arc- striking contact assembly (11), respectively;
during closing of the grounding switch (1), the moving arc- striking contact (141) and the static arc-striking contact assembly (11) come into contact before the static contact (12) and the moving contact (142); during opening of the grounding switch (1), the moving arc-striking contact (141) and the static arc-striking contact assembly (11) separate after the static contact (12) and the moving contact (142) .
8. The grounding switch as claimed in claim 7, wherein the position of the insulating sleeve (118) is set such that during closing of the grounding switch (1), the moving arc-striking contact (141) slides along the surface of the static arc-striking contact (113) after coming into contact with the static arc- striking contact (113), until the static contact (12) and the moving contact (142) have come into proper contact, and then the moving arc-striking contact remains on the insulating sleeve (118); when the process of opening the grounding switch (1) begins, the moving arc-striking contact (141) and the static arc-striking contact (113) immediately re-establish contact, and only separate once the static contact (12) and the moving contact (142) have completely separated.
9. The grounding switch as claimed in claim 7 or 8, wherein the wiring terminal (13) comprises a connecting arm (131), a wiring plate (132) and a pedestal (133), the connecting arm (131) being fixed between the wiring plate (132) and the pedestal (133), one end (1311) of the connecting arm (131) being connected to the static arc-striking contact assembly (11), the static contact (12) being fixed to the connecting arm (131) and disposed close to the static arc-striking contact assembly (11), and the pedestal (133) being fixed to the insulator (153) .
10. The grounding switch as claimed in claim 9, wherein the connecting arm (131) is welded to the wiring plate (132), and the wiring plate (132) is fixed to the pedestal (133) by means of at least one sleeve (134), said one end (1311) of the connecting arm (131) being connected to one (151) of the equalizing rings by means of the static arc-striking contact assembly (11), and another end (1312) of the connecting arm (131) being connected to the other (152) of the equalizing rings.
EP15731362.8A 2014-06-26 2015-06-25 Static arc-striking contact assembly and grounding switch thereof Not-in-force EP3161845B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15731362T PL3161845T3 (en) 2014-06-26 2015-06-25 Static arc-striking contact assembly and grounding switch thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410300276.1A CN105225883B (en) 2014-06-26 2014-06-26 Sub-component and its earthed switch are touched in quiet striking
PCT/EP2015/064446 WO2015197785A1 (en) 2014-06-26 2015-06-25 Static arc-striking contact assembly and grounding switch thereof

Publications (2)

Publication Number Publication Date
EP3161845A1 true EP3161845A1 (en) 2017-05-03
EP3161845B1 EP3161845B1 (en) 2018-06-06

Family

ID=53487374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15731362.8A Not-in-force EP3161845B1 (en) 2014-06-26 2015-06-25 Static arc-striking contact assembly and grounding switch thereof

Country Status (5)

Country Link
EP (1) EP3161845B1 (en)
CN (1) CN105225883B (en)
PL (1) PL3161845T3 (en)
RU (1) RU2669703C2 (en)
WO (1) WO2015197785A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105914064B (en) * 2016-06-30 2017-10-31 中国西电电气股份有限公司 A kind of earthed switch is oriented to arc leading angle
CN108695103B (en) * 2017-04-06 2022-07-12 伊顿电力设备有限公司 Grounding switch
US10850871B2 (en) 2017-04-13 2020-12-01 Northrop Grumman Innovation Systems, Inc. Electrostatic discharge mitigation for a first spacecraft operating in proximity to a second spacecraft
CN108172475B (en) * 2018-01-03 2024-04-19 浙江正泰电器股份有限公司 Contact structure of switch electric appliance
CN111989757B (en) * 2018-03-28 2023-10-10 日立能源瑞士股份公司 Spring-loaded auxiliary contact system for bus bar transmission switching in a central switch
CN108493035A (en) * 2018-05-30 2018-09-04 宁夏京能宁东发电有限责任公司 Disconnecting switch equipped with arc initiation device
DE102018222848A1 (en) * 2018-12-21 2020-06-25 Siemens Aktiengesellschaft Earthing switch for a medium and / or high voltage circuit device and corresponding circuit device
CN110137025A (en) * 2019-05-10 2019-08-16 湖南长高高压开关集团股份公司 A kind of contactless arc current of disconnecting switch closes auxiliary contact device
CN110112027A (en) * 2019-05-10 2019-08-09 湖南长高高压开关集团股份公司 A kind of disconnecting switch arc current closes auxiliary device
CN110335777B (en) * 2019-07-09 2024-04-30 许继（厦门）智能电力设备股份有限公司 Isolating switch with switching bus for converting current

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955337A (en) * 1932-01-02 1934-04-17 Westinghouse Electric & Mfg Co Circuit breaker
US2344113A (en) * 1941-01-27 1944-03-14 Line Material Co Switch
US2562027A (en) * 1946-07-25 1951-07-24 Asea Ab Arrangement in high-tension disconnecting switches
US3024328A (en) * 1960-01-27 1962-03-06 Southern States Inc Electric grounding switch
US3064107A (en) * 1960-10-14 1962-11-13 Mc Graw Edison Co Switching device
FR2674985B1 (en) * 1991-04-08 1996-09-06 Gec Alsthom Engergie Inc QUICK-OPENING SWITCH.
RU2241272C2 (en) * 1998-02-17 2004-11-27 Тихомиров Иван Иванович Fuse disconnecting switch
DE102006059466A1 (en) * 2006-12-14 2008-06-19 Krütten, Viktor Electric switch with rotatably mounted contact element
CN201804780U (en) 2010-10-10 2011-04-20 河南森源电气股份有限公司 Arc striking device for high-voltage grounding switch
CN103282991B (en) * 2010-12-22 2015-11-25 Abb技术有限公司 A kind of switchgear and switching device

Also Published As

Publication number Publication date
CN105225883A (en) 2016-01-06
RU2016150843A (en) 2018-07-26
RU2016150843A3 (en) 2018-07-26
CN105225883B (en) 2017-12-15
WO2015197785A1 (en) 2015-12-30
EP3161845B1 (en) 2018-06-06
PL3161845T3 (en) 2018-11-30
RU2669703C2 (en) 2018-10-15

Similar Documents

Publication Publication Date Title
EP3161845B1 (en) Static arc-striking contact assembly and grounding switch thereof
US7950939B2 (en) Medium voltage separable insulated energized break connector
CN101483113B (en) Vacuum switchgear
EP1618577B1 (en) Vacuum circuit breaker
JP2007014086A (en) Vacuum insulation switchgear
KR20090068154A (en) Vacuum insulated switch gear
EP2562777B1 (en) Dual structured contact for switchgear and switchgear having the same
CN105070577A (en) Isolation grounding switch mechanism, single-pole component and GIS electrical equipment
KR102053070B1 (en) Rotary double breakpoint switch contact system connection improvement structure
US11257634B2 (en) Disconnector pole for gas insulated switchgear
EP3624153A1 (en) Gripping group for a switch having an internal compact structure
CN111989757B (en) Spring-loaded auxiliary contact system for bus bar transmission switching in a central switch
JP5978124B2 (en) Switchgear
JP5815449B2 (en) Vacuum circuit breaker
CN105161346A (en) Single-pole isolated grounding switch
JP5502027B2 (en) Switchgear
CN209708929U (en) The contact system of low-voltage circuit breaker
US20140231235A1 (en) Contact slider unit for a switching unit, in particular for a circuit breaker
US9123489B2 (en) Gas insulated switchgear
EP3776619B1 (en) Flexible conductor for disconnector and the disconnector thereof
CN102064037B (en) Combined type ground switch
CN104425194A (en) DC circuit breaker
JP2009129855A (en) Vacuum circuit breaker
CN110581034A (en) Protection mechanism for power switch device
KR20110010037U (en) Gas Insulated Switchgear

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20161222

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20180108

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1006975

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015011959

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180906

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180906

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180907

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1006975

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181006

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180630

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015011959

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180625

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180625

26N No opposition filed

Effective date: 20190307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180630

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180625

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150625

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180606

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20200615

Year of fee payment: 6

Ref country code: PL

Payment date: 20200615

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200819

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20200625

Year of fee payment: 6

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015011959

Country of ref document: DE

Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG, DE

Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602015011959

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20210701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210625