EP0482434B1 - Sprungantrieb für Mittelspannungsschaltanlagen - Google Patents

Sprungantrieb für Mittelspannungsschaltanlagen Download PDF

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Publication number
EP0482434B1
EP0482434B1 EP91117263A EP91117263A EP0482434B1 EP 0482434 B1 EP0482434 B1 EP 0482434B1 EP 91117263 A EP91117263 A EP 91117263A EP 91117263 A EP91117263 A EP 91117263A EP 0482434 B1 EP0482434 B1 EP 0482434B1
Authority
EP
European Patent Office
Prior art keywords
drive
snap
spring
action
lever
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.)
Expired - Lifetime
Application number
EP91117263A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0482434A3 (en
EP0482434A2 (de
Inventor
Horst Deharde
Rolf Dirks
Udo Tisch
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.)
Felten and Guilleaume Energietechnik AG
Original Assignee
Felten and Guilleaume Energietechnik 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 Felten and Guilleaume Energietechnik AG filed Critical Felten and Guilleaume Energietechnik AG
Publication of EP0482434A2 publication Critical patent/EP0482434A2/de
Publication of EP0482434A3 publication Critical patent/EP0482434A3/de
Application granted granted Critical
Publication of EP0482434B1 publication Critical patent/EP0482434B1/de
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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3068—Housing support frame for energy accumulator and cooperating mechanism

Definitions

  • the invention relates to a jump drive for medium-voltage switchgear according to the preamble of claim 1.
  • jump movements for the switchgear are generated for drives for the switches and earthing devices via tension, compression or torsion springs by means of a wide variety of designs for the spring force-transmitting components.
  • a jump drive according to the preamble of claim 1 is already known (EP-A-0 286 474).
  • a compression spring ensures the switching movement of the switch and earthing device.
  • the compression spring has a fixed pivot point on one side and transmits its spring force as a jumping movement via complex cam, ratchet and freewheel controls, which are connected to a large number of levers.
  • the invention specified in claim 1 is based on the problem of reducing the number of complex control parts, increasing the functional reliability and designing and arranging the remaining parts so that a small-sized and easy-to-assemble spring drive is produced.
  • the drive shafts in a dual function can unlock the drive locked in the "off" position and can set the associated switch in a switching movement.
  • the drive can be kept small by shifting the freewheels from the actual drive to the actuating device.
  • the different design of the freewheel insertion rollers of the actuating device ensures the unmistakable nature of a drive circuit.
  • a further embodiment of the invention is specified in claim 4. With a holder for a stop screw, a fixed stop connected to the drive shaft is prevented from swinging back during an "off" switching movement.
  • the drive shafts in the vicinity of the insertion openings for an actuating device are provided with half slots transverse to the respective axis of the drive shafts. This makes it possible to guide a locking plate which contains two cutouts which are arranged such that when a drive is switched "on", the insertion opening of the other drive shaft is closed.
  • all parts of the drive are a complete drive unit assembled in the U-shaped support frame, in which the two drive shafts are each mounted twice.
  • Such a drive unit can be attached to a switchgear with little effort, only the switch shaft having to be coupled to the drive.
  • the spring drive has a drive shaft 1 for a cable switch and a drive shaft 1 ' for an earthing switch. Both drive shafts 1, 1 ' are arranged in bearings 22 (not shown) and 22' of a U-shaped support frame 21 at a distance parallel to one another. Because of the equality of the two drive shafts 1, 1 ' , the description is limited to the drive shaft 1 for the cable switch, in the drawing all reference numerals relating to the earthing switch are given the same reference number as for the cable switch, but with an additional "′ " Mistake.
  • the drive shaft 1 is designed as a hollow shaft and has an insertion opening 2 with a driving contour for an actuating device 37 on the operating side .
  • the drive shaft 1 has a half slot 3 for guiding a locking plate 23 which can be moved parallel to the front side of the support frame 21 is.
  • the locking plate 23 has two recesses 24 which are distributed in the locking plate 23 that when actuating a drive shaft 1 or 1 ', the other drive shaft 1 ' or 1 is closed.
  • a pair of spring levers 4 inside the support frame 21 which consists of two levers which are guided parallel to one another and are fastened to the drive shaft 1 .
  • the spring levers belonging to a pair of spring levers 4 are connected to one another by a spring suspension bolt 7 .
  • a lever 16 (FIG. 5) has the task of receiving an adjusting screw 17 (FIG. 5) for a push lock pin 18 .
  • This push lock pin 18 is arranged parallel and eccentrically to the drive shaft 1 and is guided in an elongated hole 28 in the support frame 21 .
  • a guide shaft for the guide piece 13 and the push lock pin 18 serves to safely guide these two elements.
  • a compression spring 19 is limited on one side by a receptacle in the guide piece 13 and on the other side by a spring pressure holder 20 .
  • a catch bolt 29 engages in the push rod, where it establishes the connection with a push rod 30 with a freewheel.
  • the push rod 30 with a freewheel has an elongated hole in which a driving arm for a selector shaft 31 and the locking plate 23 engage.
  • the Switch shaft 31 is located in a pressure-resistant switch housing 33 and projects into the support frame 21 of the drive with a stub shaft.
  • the control shaft 31 has driving arms for the push rods 30 and the locking plate 23 .
  • the control shaft 31 is guided through the housing wall with a sealing flange 34 .
  • With the selector shaft 31 three driving levers 35 are connected in the pressure-resistant switch housing 33 , which establish the connection to the movable contacts of the switches via insulating rods 36 .
  • a single actuator 37 is provided for the actuation of the two drive shafts 1, 1 ' . It consists of a manual control lever 38 , which contains a plug-in freewheel 42 with a small diameter and long length and a plug-in freewheel 42 ' with a large diameter and short length (not shown) in a pivot bearing 43 . A removable crank for the manual operating lever 38 can be locked with the aid of a locking pin 39 . A drive pin 44 is located between the insertable idler roller 42 and the rotary bearing 43 .
  • Markings 25 on the locking plate 23 indicate the respective position of the associated switch.
  • the actuating device 37 consists of a manual operating lever 38 (shown in Fig. 1) with a two-armed pivot lever, the arms of which are designed as plug-in idler rollers 42 and 42 ' .
  • the insert rollers 42 with a small diameter and a large length for the drive shaft 1 and the insert rollers 42 ' with a large diameter and a small length for the drive shaft 1' are executed. Only one insertion roller 42 or 42 ' can be used, the working position only releasing one insertion roller, while the other insertion roller is hidden in the shaft of the actuating device 37 .
  • the crank (only shown in FIG. 1) of the actuating device, it is equipped with an adjusting button for latching 41 and a compression spring 40 . Between the insertion rollers 42 and 42 ' there are driving pins 44 and 44 ' .
  • a roller locking pin 5 ' in the drive shaft 1' prevents the insertion of the longer and smaller in diameter roller 42nd
  • the guide piece 13 has a recess 14 for receiving the push rod 12 and a recess 15 for receiving the compression spring 19th
  • a lever 16 connected to the guide piece 13 serves to receive the push lock bolt 18 , which is connected to the lever by means of a screw 17 .
  • 6 and 7 show the push lock pin 18 in two views.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Particle Accelerators (AREA)
  • Gas-Insulated Switchgears (AREA)
EP91117263A 1990-10-26 1991-10-10 Sprungantrieb für Mittelspannungsschaltanlagen Expired - Lifetime EP0482434B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4034084 1990-10-26
DE4034084A DE4034084A1 (de) 1990-10-26 1990-10-26 Sprungantrieb fuer mittelspannungsschaltanlagen

Publications (3)

Publication Number Publication Date
EP0482434A2 EP0482434A2 (de) 1992-04-29
EP0482434A3 EP0482434A3 (en) 1992-12-09
EP0482434B1 true EP0482434B1 (de) 1994-07-20

Family

ID=6417106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117263A Expired - Lifetime EP0482434B1 (de) 1990-10-26 1991-10-10 Sprungantrieb für Mittelspannungsschaltanlagen

Country Status (5)

Country Link
EP (1) EP0482434B1 (da)
AT (1) ATE108941T1 (da)
DE (2) DE4034084A1 (da)
DK (1) DK0482434T3 (da)
ES (1) ES2057708T3 (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445081C1 (de) * 1994-12-05 1996-04-11 Siemens Ag Dreistellungsschalterantrieb für Mittelspannungsschaltanlagen
FR2906074B1 (fr) * 2006-09-14 2008-12-05 Areva T & D Sa Mecanisme d'interrupteur sectionneur de terre
MY165473A (en) * 2010-11-04 2018-03-23 Larsen & Toubro Ltd An improved mechanical interlock, dual toggling and three position mechanism of an electrical load break switch
CN103165312A (zh) * 2012-12-24 2013-06-19 刘晓颖 一种联锁机构
EP3901976B1 (en) * 2020-04-22 2024-06-26 ABB Schweiz AG Earthing switch and switchgear comprising such switch
CN115938852A (zh) * 2022-09-27 2023-04-07 国网上海市电力公司 一种紧凑型低压跨可视化联络箱用弹簧操作机构

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616118A (en) * 1984-06-19 1986-10-07 General Signal Corporation Cock and trip switch actuating mechanism
FR2613123B1 (fr) * 1987-03-27 1989-06-09 Merlin Gerin Mecanisme de commande d'un interrupteur a trois positions

Also Published As

Publication number Publication date
ES2057708T3 (es) 1994-10-16
EP0482434A3 (en) 1992-12-09
ATE108941T1 (de) 1994-08-15
DK0482434T3 (da) 1994-11-14
DE4034084A1 (de) 1992-04-30
DE59102247D1 (de) 1994-08-25
EP0482434A2 (de) 1992-04-29

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