AU2010306085B2 - 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
AU2010306085B2
AU2010306085B2 AU2010306085A AU2010306085A AU2010306085B2 AU 2010306085 B2 AU2010306085 B2 AU 2010306085B2 AU 2010306085 A AU2010306085 A AU 2010306085A AU 2010306085 A AU2010306085 A AU 2010306085A AU 2010306085 B2 AU2010306085 B2 AU 2010306085B2
Authority
AU
Australia
Prior art keywords
voltage switchgear
carrying capacity
current
switching shaft
medium
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.)
Ceased
Application number
AU2010306085A
Other versions
AU2010306085A1 (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
    • H01H33/42—Driving mechanisms
    • 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
    • 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

1 MEDIUM VOLTAGE SWITCHGEAR HAVING DISCONNECTING SWITCHES AND THREE-POSITION SWITCHES 5 The invention relates to a medium-voltage switchgear assembly with disconnecting switches and three-position switches in accordance with the preamble of patent claim 1. 10 Disconnecting switches and three-position switches are 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 15 the different current-carrying capacities, therefore, different components of said switches are also required. This different configuration has disadvantages in terms 20 of manufacturing technology. Further advantageous configurations are specified in the dependent claims. 25 A medium-voltage switchgear assembly comprising: disconnecting switches; three-position switches; a switching shaft; and a plurality of identical contact systems per phase 30 in a parallel arrangement on said switching shaft, wherein said arrangement is such that the current carrying capacity value that can be achieved is higher than a standard-compliant current-carrying capacity value. 35 It is therefore now possible for the contact components to all be manufactured uniformly, and only the number 5594927_1 (GHMatters) P90089.AU SARAHVV 22/07/2014 2 of contact systems or switches arranged in parallel and per phase therefore structurally increases the respectively desired current-carrying capacity. 5 In an advantageous configuration in this regard, the standard-compliant 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. 10 In a further advantageous configuration, the current carrying capacity value of 2,500 amperes is provided by arranging two contact arrangements positioned in parallel with one another on a switching shaft, each of 15 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 20 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. 25 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 30 a mechanical anti-rotation or anti-torsion element is integrated in the switching shaft, whereby the switching shaft itself is mechanically rotationally rigid. 35 A further advantageous design alternative is characterized by the fact that the switching shaft consists of metal, and the switching levers of the 5594927_1 (GHMatters) P90089.AU SARAHVV 22/07/2014 3 disconnecting switches or three-position switches consist of plastic. The invention is illustrated in the drawing and 5 described in more detail below. 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 Li, L2 10 and L3. Here, in each case one contact arrangement per AC phase is provided. Figure 1 shows that in each case two parallel contact arrangements 1 for each phase are arranged on the shaft 15 or switching shaft 2. For understanding of the 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, 20 is designed to have a current-carrying capacity of 1,250 amperes. Owing to the double arrangement in figure 1, a total current-carrying capacity of 2,500 amperes is thus achieved. 25 By virtue of a simple multiple arrangement of contact 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 30 combinable individual current-carrying capacities with one another to give any desired total current-carrying capacities per phase. Thus, 1,250 ampere switchgear assemblies with the same 35 prefabricated contact arrangements as, for example, 2,500 ampere switchgear assemblies can be established. This is performed simply by doubling the contact 5594927_1 (GHMatters) P90089.AU SARAHVV 22/07/2014 4 arrangements per phase, with this being on one and the same switching shaft. Modifications within the scope of the invention may be 5 readily effected by those skilled in the art. It is to be understood, therefore, that this invention is not limited to the particular embodiments described by way of example hereinabove. 10 It is to be understood that, if any prior art is referred to herein, such reference does not constitute an admission that such prior art forms a part of the common general knowledge in the art, in Australia or any other country. 15 In the claims that follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as 20 "comprises" or "comprising" is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention. 25 5594927_1 (GHMatters) P90089.AU SARAHVV 22/07/2014

Claims (8)

1. A medium-voltage switchgear assembly comprising: disconnecting switches; 5 three-position switches; a switching shaft; and a plurality of identical contact systems per phase in a parallel arrangement on said switching shaft, wherein said arrangement is such that the current 10 carrying capacity value that can be achieved is higher than a standard-compliant current-carrying capacity value.
2. The medium-voltage switchgear assembly as claimed 15 in claim 1, wherein the standard-compliant 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 either claim 1 or claim 2, wherein a current-carrying capacity value of 2,500 amperes is provided by arranging two contact 25 arrangements positioned parallel to one another on a switching shaft, each of said contact arrangements being designed for a standard-compliant current carrying capacity value of 1,250 amperes. 30
4. The medium-voltage switchgear assembly as claimed in any one of claims 1 to 3, wherein the switching shaft consists of plastic.
5. The medium-voltage switchgear assembly as claimed 35 in any one of claims 1 to 3, wherein the switching shaft consists of a ceramic material. 5594927_1 (GHMatters) P90089.AU SARAHVV 22/07/2014 6
6. The medium-voltage switchgear assembly as claimed in any one of claims 1 to 5, wherein a mechanical anti-rotation or anti-torsion 5 element is integrated in the switching shaft, whereby the switching shaft itself is mechanically rotationally rigid.
7. The medium-voltage switchgear assembly as claimed 10 in one of claims 1 to 3, wherein the switching shaft consists of metal, and the switching levers of the disconnecting switches or three-position switches consist of plastic. 15
8. A medium-voltage switchgear assembly substantially as herein described with reference to the accompanying drawings. 5594927_1 (GHMatters) P90089.AU SARAHVV 22/07/2014
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 AU2010306085A1 (en) 2012-06-07
AU2010306085B2 true 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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511736A1 (en) * 1994-04-18 1995-10-19 Abb Patent Gmbh Control panel with a three-pole circuit breaker arranged inside a control cabinet

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3715053A1 (en) * 1987-05-06 1988-11-17 Sachsenwerk Ag METAL-ENCLOSED, MULTI-PHASE HIGH VOLTAGE SWITCHGEAR FILLED WITH PRESSURE GAS
FR2683940B1 (en) * 1991-11-20 1993-12-31 Gec Alsthom Sa MEDIUM VOLTAGE CIRCUIT BREAKER FOR INDOOR OR OUTDOOR USE.
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511736A1 (en) * 1994-04-18 1995-10-19 Abb Patent Gmbh Control panel with a three-pole circuit breaker arranged inside a control cabinet

Also Published As

Publication number Publication date
DE102009049342A1 (en) 2011-09-15
AU2010306085A1 (en) 2012-06-07
ZA201202669B (en) 2012-12-27
KR20120091069A (en) 2012-08-17
CN102576621A (en) 2012-07-11
CA2777491A1 (en) 2011-04-21
EP2489054B1 (en) 2017-12-06
KR101537025B1 (en) 2015-07-15
WO2011045046A1 (en) 2011-04-21
EP2489054A1 (en) 2012-08-22
DE102009049342B4 (en) 2012-09-06

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