AU2010306085A1 - Medium voltage switchgear having disconnecting switches and three-position switches - Google Patents

Medium voltage switchgear having disconnecting switches and three-position switches Download PDF

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Publication number
AU2010306085A1
AU2010306085A1 AU2010306085A AU2010306085A AU2010306085A1 AU 2010306085 A1 AU2010306085 A1 AU 2010306085A1 AU 2010306085 A AU2010306085 A AU 2010306085A AU 2010306085 A AU2010306085 A AU 2010306085A AU 2010306085 A1 AU2010306085 A1 AU 2010306085A1
Authority
AU
Australia
Prior art keywords
carrying capacity
voltage switchgear
current
medium
switches
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
AU2010306085A
Other versions
AU2010306085B2 (en
Inventor
Maik Hyrenbach
Robby Zitzmann
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.)
ABB Technology AG
Original Assignee
ABB Technology 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
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Application filed by ABB Technology AG filed Critical ABB Technology AG
Publication of AU2010306085A1 publication Critical patent/AU2010306085A1/en
Application granted granted Critical
Publication of AU2010306085B2 publication Critical patent/AU2010306085B2/en
Ceased 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
    • H01H33/02—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
    • H01H33/121—Load break switches
    • 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
    • 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
    • H01H31/02—Details
    • 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
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • 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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/022—Details particular to three-phase circuit breakers

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switches With Compound Operations (AREA)

Abstract

The invention relates to a medium voltage switchgear having disconnecting switches and three-position switches, according to the preamble of claim 1. In order to more easily make different implementations of the current-carrying capacity, according to the invention, the attainable current-carrying capacity is increased with respect to a base current-carrying capacity by means of the multiple arrangement of identical contact systems (1) per phase (L1, L2, L3) in a parallel arrangement on a common switch axis (2).

Description

WO 2011/045046 PCT/EP2010/006263 MEDIUM VOLTAGE SWITCHGEAR HAVING DISCONNECTING SWITCHES AND THREE-POSITION SWITCHES The invention relates to a medium-voltage switchgear 5 assembly with disconnecting switches and three-position switches in accordance with the preamble of patent claim 1. Disconnecting switches and three-position switches are 10 designed for two typical current-carrying capacities in medium-voltage switchgear assemblies. A common standard-compliant value in accordance with IEC is 1,250 amperes and a further value is 2,500 amperes. For the different current-carrying capacities, therefore, 15 different components of said switches are also required. This different configuration has disadvantages in terms of manufacturing technology. 20 The invention is therefore based on the object of developing a medium-voltage switchgear assembly of the generic type such that different realizations of the current-carrying capacity can be achieved more easily. 25 The stated object is achieved in a medium-voltage switchgear assembly of the generic type according to the invention by the characterizing features of patent claim 1. 30 Further advantageous configurations are specified in the dependent claims. The essence of the invention consists in that, by 35 virtue of a multiple arrangement of identical contact systems (1) per phase (L1, L2, L3) in a parallel arrangement on a common switching shaft (2), the current-carrying capacity which can be achieved is WO 2011/045046 - 2 - PCT/EP2010/006263 increased in comparison with a basic current-carrying capacity. It is therefore now possible for the contact components 5 to all be manufactured uniformly, and only the number of contact systems or switches arranged in parallel and per phase therefore structurally increases the respectively desired current-carrying capacity. 10 In an advantageous configuration in this regard, the basic current-carrying capacity is 1,250 amperes, and the contacts of the disconnectors and/or three-position switches are designed for this current-carrying capacity. 15 In a further advantageous configuration, the current carrying capacity of 2,500 amperes is provided by arranging two contact arrangements positioned in parallel with one another on a switching shaft, each of 20 said contact arrangements being designed for a basic current-carrying capacity of 1,250 amperes. In a further advantageous configuration, the switching shaft consists of plastic. As a result, simple 25 isolation of the contact arrangements with respect to one another is provided, and the contacts of all three AC phases can thus be positioned on one switching shaft. 30 As an alternative to this the switching shaft can also consist of a ceramic material. In order to ensure a high mechanical rotational rigidity, the configuration is advantageously such that 35 a mechanical anti-rotation or anti-torsion element is integrated in the switching shaft, whereby the switching shaft itself is mechanically rotationally rigid.
WO 2011/045046 - 3 - PCT/EP2010/006263 A further advantageous design alternative is characterized by the fact that the switching shaft consists of metal, and the switching levers of the 5 disconnecting switches or three-position switches consist of plastic. The invention is illustrated in the drawing and described in more detail below. 10 Figure 2 shows an arrangement of three contact components or arrangements 1 on a switching shaft, with this being for in each case all three AC phases L1, L2 and L3. Here, in each case one contact arrangement per 15 AC phase is provided. Figure 1 shows that in each case two parallel contact arrangements 1 for each phase are arranged on the shaft or switching shaft 2. For understanding of the 20 function, mention will once again be made of the fact that this shaft moves the levers which, for their part, again themselves move the contacts. In the illustration in figure 2, each contact arrangement, i.e. per phase, is designed to have a current-carrying capacity of 25 1,250 amperes. Owing to the double arrangement in figure 1, a total current-carrying capacity of 2,500 amperes is thus achieved. By virtue of a simple multiple arrangement of contact 30 arrangements per phase, an integral multiple of a basic current-carrying capacity can thus be achieved, for example. However, structurally different contact arrangements can also be used which result in combinable individual current-carrying capacities with 35 one another to give any desired total current-carrying capacities per phase.
WO 2011/045046 - 4 - PCT/EP2010/006263 Thus, 1,250 ampere switchgear assemblies with the same prefabricated contact arrangements as, for example, 2,500 ampere switchgear assemblies can be established. This is performed simply by doubling the contact 5 arrangements per phase, with this being on one and the same switching shaft.

Claims (7)

1. A medium-voltage switchgear assembly having disconnecting switches and three-position switches, 5 characterized in that, by virtue of a multiple arrangement of identical contact systems (1) per phase (L1, L2, L3) in a parallel arrangement on a common switching shaft (2), the current-carrying capacity which can be achieved is 10 increased in comparison with a basic current-carrying capacity.
2. The medium-voltage switchgear assembly as claimed in claim 1, 15 characterized in that the basic current-carrying capacity is 1,250 amperes, and the contacts of the disconnectors and/or three-position switches are designed for this current-carrying capacity. 20
3. The medium-voltage switchgear assembly as claimed in claim 2, characterized in that the current-carrying capacity of 2,500 amperes 25 is provided by arranging two contact arrangements positioned parallel to one another on a switching shaft, each of said contact arrangements being designed for a basic current-carrying capacity of 1,250 amperes. 30
4. The medium-voltage switchgear assembly as claimed in claim 2 or 3, characterized in that the switching shaft consists of plastic. 35
5. The medium-voltage switchgear assembly as claimed in claim 2 or 3, characterized WO 2011/045046 - 6 - PCT/EP2010/006263 in that the switching shaft consists of a ceramic material.
6. The medium-voltage switchgear assembly as claimed 5 in claim 5, characterized in that a mechanical anti-rotation or anti-torsion element is integrated in the switching shaft, whereby the switching shaft itself is mechanically rotationally 10 rigid.
7. The medium-voltage switchgear assembly as claimed in one of claims 1 to 3, characterized 15 in that the switching shaft consists of metal, and the switching levers of the disconnecting switches or three-position switches consist of plastic.
AU2010306085A 2009-10-14 2010-10-13 Medium voltage switchgear having disconnecting switches and three-position switches Ceased AU2010306085B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009049342A DE102009049342B4 (en) 2009-10-14 2009-10-14 Medium-voltage switchgear with load and disconnectors and disconnecting position containing three-position switches
DE102009049342.5 2009-10-14
PCT/EP2010/006263 WO2011045046A1 (en) 2009-10-14 2010-10-13 Medium voltage switchgear having disconnecting switches and three-position switches

Publications (2)

Publication Number Publication Date
AU2010306085A1 true AU2010306085A1 (en) 2012-06-07
AU2010306085B2 AU2010306085B2 (en) 2014-08-14

Family

ID=43466984

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2010306085A Ceased AU2010306085B2 (en) 2009-10-14 2010-10-13 Medium voltage switchgear having disconnecting switches and three-position switches

Country Status (8)

Country Link
EP (1) EP2489054B1 (en)
KR (1) KR101537025B1 (en)
CN (1) CN102576621A (en)
AU (1) AU2010306085B2 (en)
CA (1) CA2777491A1 (en)
DE (1) DE102009049342B4 (en)
WO (1) WO2011045046A1 (en)
ZA (1) ZA201202669B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104021970A (en) * 2014-05-29 2014-09-03 国家电网公司 Electric power line double-knife combination linkage type low-voltage knife fuse switch

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8717730U1 (en) * 1987-05-06 1989-11-30 Sachsenwerk AG, 8400 Regensburg Metal-enclosed, pressurized gas-filled, multiphase high-voltage switchgear
FR2683940B1 (en) * 1991-11-20 1993-12-31 Gec Alsthom Sa MEDIUM VOLTAGE CIRCUIT BREAKER FOR INDOOR OR OUTDOOR USE.
DE19511736A1 (en) * 1994-04-18 1995-10-19 Abb Patent Gmbh Control panel with a three-pole circuit breaker arranged inside a control cabinet
DE4445081C1 (en) * 1994-12-05 1996-04-11 Siemens Ag Three setting switch drive for medium voltage switchgear
DE19615101A1 (en) * 1996-04-17 1997-10-23 Rauschert Gmbh & Co Kg Paul Ceramic part
JP4433283B2 (en) * 2004-02-06 2010-03-17 タイコエレクトロニクスジャパン合同会社 Switch and device using the same
DE102005017939A1 (en) * 2005-04-18 2006-10-19 Abb Technology Ag Electrical switching system has shielding plate with number of slots corresponding to number of earth blades through which earth blades can be pivoted into earthing position
KR100846223B1 (en) * 2006-03-09 2008-07-15 (주)서전기전 Medium Voltage Switch-gear
KR101045465B1 (en) * 2006-09-29 2011-06-30 가와무라 일렉트릭 가부시키가이샤 Circuit breaker
DE102008015437B3 (en) * 2008-03-22 2009-07-30 Moeller Gmbh Symmetrization arrangement for parallel current paths

Also Published As

Publication number Publication date
AU2010306085B2 (en) 2014-08-14
CA2777491A1 (en) 2011-04-21
KR101537025B1 (en) 2015-07-15
DE102009049342B4 (en) 2012-09-06
KR20120091069A (en) 2012-08-17
WO2011045046A1 (en) 2011-04-21
EP2489054B1 (en) 2017-12-06
ZA201202669B (en) 2012-12-27
DE102009049342A1 (en) 2011-09-15
CN102576621A (en) 2012-07-11
EP2489054A1 (en) 2012-08-22

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FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired