EP0214082A2 - Sectionneur à coupure en charge d'une unité de commutation à haute tension (commutateur à courant triphasé) - Google Patents

Sectionneur à coupure en charge d'une unité de commutation à haute tension (commutateur à courant triphasé) Download PDF

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Publication number
EP0214082A2
EP0214082A2 EP86730102A EP86730102A EP0214082A2 EP 0214082 A2 EP0214082 A2 EP 0214082A2 EP 86730102 A EP86730102 A EP 86730102A EP 86730102 A EP86730102 A EP 86730102A EP 0214082 A2 EP0214082 A2 EP 0214082A2
Authority
EP
European Patent Office
Prior art keywords
switch
switching elements
switching
tool
switching element
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
EP86730102A
Other languages
German (de)
English (en)
Other versions
EP0214082B1 (fr
EP0214082A3 (en
Inventor
Gisbert Brüggemann
Jeffrey Allan Glen
Manfred Matlanga
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.)
Holec Holland NV
Original Assignee
Krone GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krone GmbH filed Critical Krone GmbH
Priority to AT86730102T priority Critical patent/ATE69122T1/de
Publication of EP0214082A2 publication Critical patent/EP0214082A2/fr
Publication of EP0214082A3 publication Critical patent/EP0214082A3/de
Application granted granted Critical
Publication of EP0214082B1 publication Critical patent/EP0214082B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H33/022—Details particular to three-phase circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/056—Tools for actuating a switch
    • H01H2300/058—Tools for actuating a switch using apparatus with a spring motor or a snap-acting mechanism for actuating any one of a number of circuit breakers

Definitions

  • the invention relates to a load break switch of a high-voltage switching unit (three-phase switch) according to the preamble of claim 1.
  • a switch disconnector of the generic type is previously known from DE-PS 22 40 492.
  • the special design of the individual switching elements of this switch disconnector is described in more detail in DE-PS 22 29 865.
  • the individual switch elements of the switch-disconnector are switched on and off one after the other using the insertion and removal tool (manual override drive).
  • the disadvantage of this single-pole switching is that under certain circumstances of a supply network, single-pole switching leads to relatively high overvoltages as a result of the switching process. Particularly in supply networks, whose star point is grounded via earth fault quenching coils, this overvoltages can occur when large portions of the supply network are switched off, for example if only 80 or 90% of the supply power of the supply network is switched off during a switching operation.
  • Another disadvantage of single-pole switching is that, for example, the Electric motors connected to the supply network that are not adequately protected by motor protection switches after a phase has been switched off, during which operation in the meantime can be damaged by only two phases.
  • the invention has for its object to develop a switch disconnector of a high-voltage switching unit (three-phase switch) of the generic type in such a way that all three switching elements and thus all three phases of the supply network can be switched on and off simultaneously.
  • the invention achieves that when actuating only one of the switching elements, preferably the central switching element, all three switching elements can be switched together.
  • the generic type of switch disconnector of a high-voltage switch unit is retained.
  • the existing switching elements are changed only slightly, so that from the single-pole switch disconnector, in which all three phases have to be switched in sequence, a three-pole switch disconnector is produced, in which all three phases are switched simultaneously.
  • the advantages of the three-pole switching known per se are combined with the known and proven design of a single-pole switch disconnector to be switched. It is particularly advantageous that it is very easy to retrofit existing switch disconnectors. It is only necessary to replace the switching elements. No changes are required on the stationary parts of the high-voltage switching unit.
  • the high-voltage switching unit 63 shown in FIG. 1 corresponds in its basic structure to the high-voltage switching unit according to DE-PS 22 40 492.
  • the two-part plastic housing of the high-voltage switching unit 63 has on its underside three connecting terminals 64, 65, 66 for the three phases R, S, T of a high voltage - three-phase network. These are connected in the interior of the housing via busbars 42, each with a main contact piece 33, as shown in FIG. 3. Furthermore, there are three taps in the housing of the high-voltage switching unit 63 at a distance from the main contact pieces 33 provided counter contacts 43 arranged. These can be connected to the main contact pieces 33 via tubular switching elements 11, 12, 13, as described in more detail in DE-PS 22 40 492. The special design of the individual tubular switching elements 11, 12, 13 is described in more detail in DE-PS 22 29 865.
  • Each tubular switching element 11, 12, 13 essentially consists of a tubular main current path 14, which is used for the electrical connection of a main contact piece 33 to a mating contact 43, and a coupling connection 24, 35 (not described here in more detail) for the switch-on position.
  • An insulating sleeve 30 is attached to the outer end of each tubular main current path 14.
  • a cup-shaped insulating hood 31 is attached, which encloses the insulating sleeve 30 and part of the tubular main current path 14 at a distance, as is shown in particular in FIG. 3.
  • the insulating material covers 31 surround sleeve-shaped insulating parts 78, which are attached to the housing of the high-voltage switching unit 63, as shown in FIG. 6.
  • the insulating material hoods 31 of the three switching elements 11, 12, 13 are provided on the outside with ribs 85 on the end directed towards the main current path 14, to which a cylindrical part 86 adjoins the other end.
  • the cylindrical parts 86 of the insulating material hoods 31 are received in an insulating material bridge 10, as is shown in particular in FIGS. 3, 4 and 5.
  • the insulating material bridge 10 is U-shaped in cross section (FIG. 4), the side webs 87 being chamfered from the center outwards, as shown in FIG. 3.
  • the base 88 of the U-shaped insulating material bridge 10 is provided with three bores 77, to the central bore 77 of which a tube piece 76 is connected, which is firmly connected to the base 88.
  • the two outer bores 77 are provided with pipe pieces 76 which are only attached.
  • the three switching elements 11, 12, 13 with the cylindrical parts 86 of their insulating material hoods 31 are inserted into the tube pieces 76 from the base 88, the ribs 85 coming to rest on the base 88 of the insulating material bridge.
  • the pipe pieces 76 thus plugged in are secured by wedges 18 on the cylindrical part 86 of the insulating material hoods 31.
  • the wedges 18 are secured to all three switching elements 11 to 13 by fastening screws 71, the projecting screw heads of which prevent the insertion of a manual spring drive for single-pole switching.
  • the three switching elements 11, 12, 13 are rotatably supported in the insulating material bridge 10, but are axially positively fixed between the ribs 85 and the wedges 18.
  • the switching elements 11, 12, 13 and the insulating material bridge 10 thus form a structural unit.
  • three openings 73 for performing voltage testers for each switching element 11 to 13 are formed in the base 88 of the insulating material bridge 10.
  • a latching device 44 is arranged in the middle switching element 12, which is shown in more detail in FIG. 5. This consists of two in the Insulating sleeve 30 of the main current path 14 inserted locking pins 45, which are directed radially outwards under the action of an inner compression spring 46.
  • an insulating sleeve 74 of the sleeve-shaped insulating part 78 of the fixed high-voltage switching unit 63 two latching recesses 47, 48 are formed at an axial distance from one another, with which the latching pins 45 of the latching device 44 cooperate, as is shown in FIGS. 5 to 7.
  • the locking pins 45 are located in the outer recess 48 of the insulating material bushing 74 of the insulating part 78. After a rotation by 90 ° in the clockwise direction (FIG. 7), the locking pins 45 come into the ready position for switching on (position b) , in which the locking pins 45 start against stops in the insulating sleeve 74. In this rotational position of the switching element 12, it can be pressed into the high-voltage switching unit 63 in the direction of arrow Z by means of the insert and removal tool (manual spring drive) 50 shown in FIG. 8, in order to electrically connect the three main contact pieces 33 with the mating contact pieces 43 via the main current paths 14 connect with each other. When the connection is reached, the locking pins 45 engage in the axially inward recess 47 (position c).
  • the switching elements 11, 12, 13 must be pulled out by means of the tool 50, the latching force of the latching spring 46 of the latching pins 45 of the latching device 44 of the middle switching element 12 engaging in the latching recesses 47 having to be overcome.
  • a tension spring 75 is used to automatically reset the middle switching element 12 when switching off from position b to position a.
  • the insertion and removal tool (manual jump drive) 50 is shown in FIG. 8. This consists of a handle 58, a connecting head 81 for engaging in the socket 82 of the middle switching element 12 and two parallel connected spring devices 51 connecting the handle 58 and the connecting head 81.
  • Each spring device 51 consists of a telescopic housing 80, of two interlocking ones and sleeves 52, 62 which can slide into one another.
  • the sleeve 62 is firmly connected to an end plate 60 fixedly attached to the handle 58.
  • the sleeve 52 is slidable in the sleeve 62 and is pressed out of the sleeve 62 up to the stop 41 under the action of a compression spring 54 supported on the bottom of the sleeve 52.
  • the compression spring 54 is supported on the bottom of the sleeve 62 via a plate 89.
  • the free end of the sleeve 52 is slidably received on a pipe section 90 which is fixedly connected to an end plate 59 for connecting the two telescopic housings 80, which in turn carries the connecting head 81.
  • the head 91 of a push rod 92 is slidably guided, which is firmly screwed at its other end to the plate 89 of the compression spring 54.
  • the connecting head 81 is connected to the end plate 59 via a tubular extension 93, 93 'of a disk-shaped coupling part 55.
  • a union sleeve 56 is axially displaceably mounted against the action of a compression spring 69, the end positions of which are delimited on the one hand by the end face of the end plate 59 and on the other hand by a pin 94.
  • the tubular extension 93, 93 'of the coupling part 55 is formed as a coupling by a V-shaped parting plane 93' 'which is held together by means of a compression spring 68 acting on an inner sleeve 55' '.
  • the compression spring 68 pulls the sleeve 55 '' attached to the tubular extension 93 'coupling part 55 against the tubular connection 93 fixedly connected to the end plate 59 via the V-coupling, so that the coupling part 55 is carried when the middle switching element 12 from Position a is rotated into position b. (Fig. 7). If over an angle of more than 90 °, i.e. Should be rotated via the position b, the coupling part 55 of the connecting head 81 disengages via the V-coupling 93 ′′ and the spring 68. This ensures that due to excessive forces acting on the switching element 12 from the tool 50, no defects can occur on the locking device 44, the locking positions of which are arranged at an angle of 180 ° to one another.
  • the disc-shaped coupling part 55 is inside an end cylindrical recess of the sleeve 56 is arranged.
  • the coupling part 55 is provided on one side with a slot 55 ′ and has a guide pin 72 on the side radially opposite this.
  • a guide pin 57 loaded by a compression spring 67 is slidably arranged in the head 83 of the coupling part 55.
  • the head 83 shown in cross section in FIG. 9 has a recess 84 so that the head 83 is oval in cross section behind a disk-shaped head part. Rubber plates 95 are pushed onto the two spring devices 51 to secure the operator.
  • the socket 82 formed on the end face of the switching element 12 is part of the end face of the insulating material cover 31.
  • the socket 82 comprises a keyhole-shaped opening 32 with a slot 34 extending therefrom.
  • a fastening screw 71 is screwed axially into the insulating material cover 31 and at the same time supports the wedge 18 Securing the insulating material bridge 10.
  • the connection head 81 of the tool 50 is inserted into the socket 82 of the middle switching element 12, the head 83 in the opening 32 and the fastening screw 71 in the radial slot 55 'of the coupling part 55 engage.
  • the pin 72 of the coupling part 55 engages in the slot 34 of the opening 32.
  • the union sleeve 56 encloses the cylindrical part 86 of the insulating material cover 31, a slot 56 ′ engaging in the front circumference of the sleeve 56 over the wedge 18. In this way, the switch-disconnector can be switched on and off by means of the tool 50, as will be described below.
  • the three switching elements 11, 12, 13 are located in the high-voltage switching unit 63 such that the latching device 44 is in the position a (pre-locking), in which the latching pins 45 meet a stop 79 which ensures the position a.
  • the position a also ensures that the detent cannot be run over when the switching element 12 is inserted.
  • the speed is decisive for the electrical switch-on capacity. A constant speed can only be achieved from the rest position of the switching element.
  • the middle switching element 12 has been rotated into position b by means of the handle 58, the two compression springs 54 of the two parallel spring devices 51 are pressed together by means of the handle 58 until they are fully tensioned.
  • the locking device 44 built into the switching element 12 blocks the switching element 12 for as long as the three switching elements 11, 12, 13 are switched on suddenly after the locking device 44 has been overcome.
  • the locking pins 45 then snap into the locking recess 47 (position c in FIG. 6).

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Electric Cable Installation (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Tumbler Switches (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Near-Field Transmission Systems (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
EP86730102A 1985-08-27 1986-07-03 Sectionneur à coupure en charge d'une unité de commutation à haute tension (commutateur à courant triphasé) Expired - Lifetime EP0214082B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86730102T ATE69122T1 (de) 1985-08-27 1986-07-03 Lasttrennschalter einer hochspannungsschalteinheit (drehstromschalter).

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853530960 DE3530960A1 (de) 1985-08-27 1985-08-27 Vorrichtung zum dreipoligen schalten eines lasttrennschalters mittels eines handsprungantriebes
DE3530960 1985-08-27

Publications (3)

Publication Number Publication Date
EP0214082A2 true EP0214082A2 (fr) 1987-03-11
EP0214082A3 EP0214082A3 (en) 1989-07-12
EP0214082B1 EP0214082B1 (fr) 1991-10-30

Family

ID=6279713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86730102A Expired - Lifetime EP0214082B1 (fr) 1985-08-27 1986-07-03 Sectionneur à coupure en charge d'une unité de commutation à haute tension (commutateur à courant triphasé)

Country Status (7)

Country Link
EP (1) EP0214082B1 (fr)
AT (1) ATE69122T1 (fr)
AU (1) AU599595B2 (fr)
DE (2) DE3530960A1 (fr)
DK (1) DK166419B1 (fr)
NZ (1) NZ217062A (fr)
ZA (1) ZA866440B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0744758A2 (fr) * 1995-05-20 1996-11-27 ABBPATENT GmbH Interrupteur à haute tension
EP2102955A1 (fr) * 2006-12-21 2009-09-23 ABB Technology AG Installation de distribution electrique haute tension
EP2722862A1 (fr) * 2012-10-16 2014-04-23 ABB Technology AG Ensemble électrique pour appareillage de commutation et appareillage de commutation associé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE544628C (de) * 1928-10-09 1932-02-20 Sigwart Ruppel Dipl Ing Druckgasduesenschalter fuer Drehstrom
FR2189850A1 (fr) * 1972-06-19 1974-01-25 Krone Gmbh
FR2196517A1 (fr) * 1972-08-17 1974-03-15 Krone Gmbh
DE2434438A1 (de) * 1974-07-17 1976-01-29 Concordia Sprecher Schalt Lasttrennschalter
DE2907559B1 (de) * 1979-02-27 1980-06-12 Krone Gmbh Dreipoliger Hochspannungsschalter insbesondere Lasttrenner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094848B (de) * 1958-05-02 1960-12-15 Siemens Ag Federkraftspeicher fuer sprunghaft betaetigte Lastumschalter von Stufentransformatoren
BE789990A (fr) * 1972-10-12 1973-04-12 Gardy Dispositif de deplacement lineaire rapide d'un element,
DE2758264A1 (de) * 1977-12-27 1979-07-05 Bbc Brown Boveri & Cie Antriebsvorrichtung fuer einen elektrischen schalter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE544628C (de) * 1928-10-09 1932-02-20 Sigwart Ruppel Dipl Ing Druckgasduesenschalter fuer Drehstrom
FR2189850A1 (fr) * 1972-06-19 1974-01-25 Krone Gmbh
FR2196517A1 (fr) * 1972-08-17 1974-03-15 Krone Gmbh
DE2434438A1 (de) * 1974-07-17 1976-01-29 Concordia Sprecher Schalt Lasttrennschalter
DE2907559B1 (de) * 1979-02-27 1980-06-12 Krone Gmbh Dreipoliger Hochspannungsschalter insbesondere Lasttrenner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0744758A2 (fr) * 1995-05-20 1996-11-27 ABBPATENT GmbH Interrupteur à haute tension
EP0744758A3 (fr) * 1995-05-20 1999-02-24 ABBPATENT GmbH Interrupteur à haute tension
EP2102955A1 (fr) * 2006-12-21 2009-09-23 ABB Technology AG Installation de distribution electrique haute tension
EP2722862A1 (fr) * 2012-10-16 2014-04-23 ABB Technology AG Ensemble électrique pour appareillage de commutation et appareillage de commutation associé
WO2014060221A1 (fr) * 2012-10-16 2014-04-24 Abb Technology Ag Ensemble électrique pour un appareillage de connexion et appareillage de connexion associé

Also Published As

Publication number Publication date
NZ217062A (en) 1989-01-06
EP0214082B1 (fr) 1991-10-30
ZA866440B (en) 1988-05-25
DE3682242D1 (de) 1991-12-05
DE3530960C2 (fr) 1988-09-22
AU6076086A (en) 1987-03-12
DK166419B1 (da) 1993-05-17
DK405886A (da) 1987-02-28
EP0214082A3 (en) 1989-07-12
DK405886D0 (da) 1986-08-26
AU599595B2 (en) 1990-07-26
ATE69122T1 (de) 1991-11-15
DE3530960A1 (de) 1987-03-05

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