EP0948011A2 - Interrupteur pour lignes de puissance électriques à haute tension - Google Patents

Interrupteur pour lignes de puissance électriques à haute tension Download PDF

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Publication number
EP0948011A2
EP0948011A2 EP99200972A EP99200972A EP0948011A2 EP 0948011 A2 EP0948011 A2 EP 0948011A2 EP 99200972 A EP99200972 A EP 99200972A EP 99200972 A EP99200972 A EP 99200972A EP 0948011 A2 EP0948011 A2 EP 0948011A2
Authority
EP
European Patent Office
Prior art keywords
switch assembly
electric power
power lines
circuit breaker
voltage electric
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.)
Withdrawn
Application number
EP99200972A
Other languages
German (de)
English (en)
Other versions
EP0948011A3 (fr
Inventor
Costante Piazza
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 Trasmissione e Distribuzione SpA
Original Assignee
ABB Adda SpA
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 ABB Adda SpA filed Critical ABB Adda SpA
Publication of EP0948011A2 publication Critical patent/EP0948011A2/fr
Publication of EP0948011A3 publication Critical patent/EP0948011A3/fr
Withdrawn legal-status Critical Current

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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
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • 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
    • H01H33/027—Integrated apparatus for measuring current or voltage
    • 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
    • H01H33/008—Pedestal mounted switch gear combinations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/022—Details particular to three-phase circuit breakers

Definitions

  • the present invention relates to a switch assembly for high-voltage electric power lines having particular characteristics and reduced dimensions.
  • a switch assembly of an electrical station is generally constituted by a supporting structure which comprises one or more posts which support, at a certain distance from the ground, a supporting base; on said supporting base there is provided a plurality of electrical devices, such as circuit breakers, line and grounding disconnectors, voltage transformers and current transformers.
  • electrical devices such as circuit breakers, line and grounding disconnectors, voltage transformers and current transformers.
  • a considerable factor in determining the space required for the provision of the switch assembly is constituted by line disconnectors, whose main function is to isolate a portion of the circuit from the rest of the system, as known.
  • the disconnectors used are of the column type, in which each column is substantially a ribbed insulator; in particular, in the case of a three-column disconnector, the central column can rotate about its own axis and supports a rigid horizontal arm, the ends of which enter the respective seats supported by the two lateral columns, to which the conductors of the circuit to be isolated are connected.
  • the aim of the present invention is to provide a switch assembly for high-voltage electric power lines which allows to considerably reduce the space required and in particular combines, in the space currently required by a single three-column disconnector alone, the functions of the circuit breaker, of the line disconnector, of the grounding disconnector, of the current transformer and of the voltage transformer.
  • an object of the present invention is to provide a switch assembly for high-voltage electric power lines which allows to considerably reduce the number of foundations and supports required.
  • Another object of the present invention is to provide a switch assembly for high-voltage electric power lines which has reduced dimensions, so as to allow assembly and testing directly in the factory, at least for voltages up to 170 kV, thus reducing assembly times and costs.
  • Another object of the present invention is to provide a switch assembly for high-voltage electric power lines in which maintenance can be performed simply and rapidly.
  • Another object of the present invention is to provide a switch assembly for high-voltage electric power lines which is highly reliable, relatively easy to manufacture and at competitive costs.
  • a switch assembly for high-voltage electric power lines comprising a supporting base, which is supported by one or more supporting posts, and operating means for actuating a line disconnection maneuver.
  • the switch assembly also comprising on the supporting base and arranged in two lateral rows and a central row:
  • the switch assembly for high-voltage electric power lines comprises a supporting base 100 which is supported, in the illustrated embodiment, by three posts 20.
  • the number of posts can vary conveniently according to requirements and to the specific needs.
  • Three insulating supporting columns 3, three insulating supporting columns 4 and three circuit breakers 1 are respectively arranged on the supporting base 100 along three separate rows, two lateral ones 31 and 30 and a central one 40 respectively.
  • the insulating columns are in practice ribbed insulators which are preferably made of polymeric material.
  • the three circuit breakers 1 are of the type with a column insulator 10, inside which the moving contacts and the fixed contacts, not shown in the figure, are arranged; advantageously, the insulator is made of polymeric material, and this allows to reduce the number of components.
  • the three aligned circuit breakers are arranged along a vertical plane which is substantially perpendicular to the supporting base 100.
  • the circuit breakers comprise, inside the column insulator 10, two springs made of composite material: one spring is meant to open the contacts of said circuit breaker and the other spring is meant to close them.
  • Said circuit breaker is the subject of a pending European Patent Application No. 98204267.3 in the name of the same applicant, the description of which is assumed included herein by reference.
  • a line disconnector 21 with two blades, respectively 6 and 6', is associated with each circuit breaker 1.
  • the first blade 6 has an end 9 which is connected to the moving contacts of the circuit breaker 1 and the other end 8 which removably enters a suitable seat supported by an insulating column 3 which is arranged along the row 31;
  • the second blade 6' has instead an end 8' which removably enters a suitable seat supported by an insulating column 4 which is arranged along the row 30 and the other end 9' which is connected to the fixed contacts of the circuit breaker 1; with this solution, the blades are mutually staggered with respect to the vertical axis of the circuit breaker to which they are coupled.
  • grounding disconnectors 7 are also connected to the insulating supporting columns 3.
  • a control box 80 which contains suitable operating means, is rigidly coupled to one of the posts 20.
  • Said operating means by means of transmission systems designated schematically in Figure 3 by the reference numerals 105 and 106, actuate a kinematic chain which allows to perform disconnection if it is necessary to isolate a portion of circuits of which the switch assembly is an integral part.
  • Said operating means and said transmission systems are well known in the art and are therefore not further described.
  • the disconnection maneuver is performed by turning the pole of the circuit breaker 1 about its own vertical axis 32 rigidly with the two blades 6 and 6'.
  • the disconnectors 21 therefore pass from a position, designated schematically by the reference numeral 102 in Figure 3, for connection to a line, to a position, schematically designated by the reference numeral 103 in Figure 3, in which the portion of circuit connected thereto is isolated.
  • a corresponding actuation system turns the grounding disconnectors 7 in the direction indicated by the arrow 101 in Figure 1, allowing to ground the isolated part of the circuit.
  • the plane that contains the circuit breaker and the two blades of the disconnector associated therewith rotates, with respect to the position in which the disconnector is connected to the line, by an angle which ensures dielectric separation longitudinally and among the phases.
  • the fact that the blades of each disconnector are mutually staggered allows to obtain the distance required to ensure dielectric separation even with highly compact switch assembly configurations; when disconnection is performed, the rotation in fact causes a blade 6 (or 6) associated with one circuit breaker to face the blade 6' (or 6) associated with the circuit breaker that is adjacent thereto along the row 40 but is vertically staggered and therefore already spaced.
  • Closure of the disconnector can be achieved by performing the operation in reverse, thus returning the blades 6 and 6' to the initial position designated by the reference numeral 102.
  • the circuit breaker 1 performs the function performed by the central column in case of a three-column disconnector; this, together with the above-described geometric arrangement, allows to obtain a symmetry and compactness in the architecture of said switch assembly both when the disconnectors are connected and when they are disconnected.
  • the distance 200 between the two lateral rows 30 and 31 along which the insulating columns are arranged is equal to or less than 2.5 m; the distance 201 between the first circuit breaker and the last circuit breaker on the central row 40 is less than 5 m.
  • the switch assembly for high-voltage electric power lines is also provided with instrument transformers; in particular, three current transformers 2 and three voltage transformers 5.
  • the current transformers 2 and voltage transformers 5 that are used are of the optoelectronic type; this allows a further reduction in the number of components and parts required for the complete production of the switch assembly.
  • each one of the voltage transformers is conveniently accommodated in a corresponding insulating column 4 (or 3), while each one of the current transformers 2 is arranged inside the insulating column 10 of a circuit breaker 1 and is arranged on the fixed part of the moving contacts of the circuit breaker. This solution is particularly advantageous as regards the constructive simplicity and compactness of the switch assembly.
  • the current transformers 2 can be arranged on the supporting columns 3 or 4.
  • the switch assembly for high-voltage electric power lines according to the present invention fully achieves the intended aim, since it allows to considerably reduce the dimensions involved, thus allowing to reduce the space required and the consequent environmental impact. Moreover, thanks to its reduced dimensions, the described constructive solution allows, even for voltages up to 170 kV, to assemble the switch assembly and test it directly in the factory. Moreover, the adoption of insulators made of polymeric material, combined with an overall reduction in the supports required, allows to reduce the number of components that can be used and facilitates their maintenance.
  • the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Inorganic Insulating Materials (AREA)
  • Organic Insulating Materials (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP99200972A 1998-03-30 1999-03-30 Interrupteur pour lignes de puissance électriques à haute tension Withdrawn EP0948011A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980672 IT1298973B1 (it) 1998-03-30 1998-03-30 Montante per linee elettriche ad alta tensione
ITMI980672 1998-03-30

Publications (2)

Publication Number Publication Date
EP0948011A2 true EP0948011A2 (fr) 1999-10-06
EP0948011A3 EP0948011A3 (fr) 2000-05-03

Family

ID=11379576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99200972A Withdrawn EP0948011A3 (fr) 1998-03-30 1999-03-30 Interrupteur pour lignes de puissance électriques à haute tension

Country Status (2)

Country Link
EP (1) EP0948011A3 (fr)
IT (1) IT1298973B1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1786010A1 (fr) * 2005-11-15 2007-05-16 AREVA Energietechnik GmbH Installation de commutation électrique
CZ299737B6 (cs) * 1999-01-05 2008-11-05 Enel Distribuzione S. P. A. Vícepólová rozpojovací jednotka a zpusob provozování rozvodných soustav
CN101159196B (zh) * 2007-11-05 2010-11-17 王若柏 户外高压隔离开关
WO2014093691A1 (fr) * 2012-12-12 2014-06-19 Southern States, Llc Interrupteur de circuit électrique à transformation de courant intégrée
DE102016218683A1 (de) 2016-09-28 2018-03-29 Siemens Aktiengesellschaft Anordnung und Verfahren zum Schalten von Hochspannungen
DE102016218836A1 (de) 2016-09-29 2018-03-29 Siemens Aktiengesellschaft Anordnung und Verfahren zur Wartung von Hochspannungsschaltern
CN111555138A (zh) * 2020-05-27 2020-08-18 朱立怀 一种具有剧烈撞击电路断开功能的户外配电柜
CN112151297A (zh) * 2020-09-29 2020-12-29 国网河南省电力公司经济技术研究院 一种基于母线支柱绝缘子的拼接外挂式母线接地开关

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH359188A (de) * 1958-06-11 1961-12-31 Sprecher & Schuh Ag Trennschalter zum Abschalten von Lastströmen, insbesondere für Höchstspannungsanlagen
DE2017835A1 (de) * 1969-04-14 1970-10-15 Switchgear and Equipment Ltd., Banbury, Oxford (Großbritannien) Elektrisches Schaltgerät
US5128608A (en) * 1990-01-09 1992-07-07 Mitsubishi Denki Kabushiki Kaisha Optical instrument transformer
WO1995027297A1 (fr) * 1994-03-31 1995-10-12 Abb Power T & D Company Inc. Ensemble interrupteur
DE19608285A1 (de) * 1996-02-23 1997-08-28 Siemens Ag Hochspannungsfreiluftschalter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH359188A (de) * 1958-06-11 1961-12-31 Sprecher & Schuh Ag Trennschalter zum Abschalten von Lastströmen, insbesondere für Höchstspannungsanlagen
DE2017835A1 (de) * 1969-04-14 1970-10-15 Switchgear and Equipment Ltd., Banbury, Oxford (Großbritannien) Elektrisches Schaltgerät
US5128608A (en) * 1990-01-09 1992-07-07 Mitsubishi Denki Kabushiki Kaisha Optical instrument transformer
WO1995027297A1 (fr) * 1994-03-31 1995-10-12 Abb Power T & D Company Inc. Ensemble interrupteur
DE19608285A1 (de) * 1996-02-23 1997-08-28 Siemens Ag Hochspannungsfreiluftschalter

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ299737B6 (cs) * 1999-01-05 2008-11-05 Enel Distribuzione S. P. A. Vícepólová rozpojovací jednotka a zpusob provozování rozvodných soustav
DE102005054842B4 (de) * 2005-11-15 2014-09-18 Alstom Grid Gmbh Elektrische Schaltanlage
WO2007057164A1 (fr) * 2005-11-15 2007-05-24 Areva Energietechnik Gmbh Installation de raccordement electrique
NO331050B1 (no) * 2005-11-15 2011-09-19 Areva Energietechnik Gmbh Elektrisk koblingsanlegg
CN1971793B (zh) * 2005-11-15 2013-09-18 阿雷瓦能源技术有限责任公司 电开关设备
EP1786010A1 (fr) * 2005-11-15 2007-05-16 AREVA Energietechnik GmbH Installation de commutation électrique
CN101159196B (zh) * 2007-11-05 2010-11-17 王若柏 户外高压隔离开关
WO2014093691A1 (fr) * 2012-12-12 2014-06-19 Southern States, Llc Interrupteur de circuit électrique à transformation de courant intégrée
DE102016218683A1 (de) 2016-09-28 2018-03-29 Siemens Aktiengesellschaft Anordnung und Verfahren zum Schalten von Hochspannungen
DE102016218683B4 (de) * 2016-09-28 2018-04-05 Siemens Aktiengesellschaft Anordnung und Verfahren zum Schalten von Hochspannungen
DE102016218836A1 (de) 2016-09-29 2018-03-29 Siemens Aktiengesellschaft Anordnung und Verfahren zur Wartung von Hochspannungsschaltern
CN111555138A (zh) * 2020-05-27 2020-08-18 朱立怀 一种具有剧烈撞击电路断开功能的户外配电柜
CN112151297A (zh) * 2020-09-29 2020-12-29 国网河南省电力公司经济技术研究院 一种基于母线支柱绝缘子的拼接外挂式母线接地开关

Also Published As

Publication number Publication date
ITMI980672A1 (it) 1999-09-30
IT1298973B1 (it) 2000-02-07
EP0948011A3 (fr) 2000-05-03

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