EP1105894A1 - Schaltvorrichtung zum zu- und abschalten oder erden von streckenabschnitten bei fahrleitungsanlagen - Google Patents
Schaltvorrichtung zum zu- und abschalten oder erden von streckenabschnitten bei fahrleitungsanlagenInfo
- Publication number
- EP1105894A1 EP1105894A1 EP99952352A EP99952352A EP1105894A1 EP 1105894 A1 EP1105894 A1 EP 1105894A1 EP 99952352 A EP99952352 A EP 99952352A EP 99952352 A EP99952352 A EP 99952352A EP 1105894 A1 EP1105894 A1 EP 1105894A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- switching device
- rod
- base
- insulators
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/42—Knife-and-clip contacts
-
- 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
- H01H31/026—Movable parts and contacts mounted thereon
-
- 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
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
Definitions
- Switching device for connecting and disconnecting or earthing sections of the track in overhead contact line systems
- the invention relates to a switching device for connecting and disconnecting or earthing sections of the line in overhead contact line systems, comprising at least one first rod insulator fixedly mounted on a base and a second rod insulator which is pivotably held on the base, and a contact insulator and contact springs arranged at the free end of the rod insulators formed switch contact set.
- Switching devices of the aforementioned type are referred to in technical jargon as isolating switches if they are used for dividing sections of track, for connecting parallel tracks or for dividing infeeds. They are referred to as earthing brackets if they are to be used to earth a section of the route that has already been switched off. Disconnectors are also available in combination with an earth contact, i.e. After separating the section of the route, it is also connected to earth.
- Such switching devices are usually mounted on crossbars on overhead line masts.
- Known switching devices of this type as described for example in the Siemens catalog FM 1995, section 13/6, comprise two isolators, one of which is rigid and the other is pivotably arranged on an axis for switching on and off on a base.
- the rod insulators are made of ceramic and firmly cemented to the base.
- the invention specified in claim 1 is therefore based on the object of specifying a switching device of the type mentioned, which in particular is of simpler construction, is less prone to failure and which is easier to assemble, in particular for maintenance work.
- the switching device presented according to the invention only needs to fall back on two different components, on the one hand, preferably L-shaped contact blades and, on the other hand, on contact springs on both sides of the contact blades.
- these two components which are preferably of the same design in all variants of the switching device, both isolating switches and earthing switches and a combination of both switches can be put together.
- switches with different functions can be produced inexpensively.
- the contact springs are advantageously held in an adjustable manner on the contact blades. This allows the contact springs to be adjusted precisely to the contact blades; Manufacturing tolerances can be largely compensated for and the contact resistance reduced to a minimum.
- the contact springs are advantageously provided with adjusting means with which the spring force of the contact springs can be adjusted.
- a particularly simple construction, in particular with a view to replacing a contact set or a rod insulator, can be achieved if, according to a further advantageous embodiment of the invention, the switch contact set is directly attached to the rod insulators by the one leg of the L-shaped contact blades are detachably attached directly to connecting parts of the rod insulators.
- the pivoted rod insulators can advantageously have an actuating element on one leg of the contact blade, which actuates a signal switch (position switch) located on the fixed rod insulator in the case of an earthing switch. This means that a signal for the existing grounding can be given when the contact set is closed.
- the rod insulators are detachably mounted on the base; for this purpose, the rod insulators are sleeve-shaped at least at the base-side end and are placed on appropriately designed holders which can be fastened in the base.
- the brackets are expediently held adjustable with the aid of suitable adjusting screws both with respect to the base and with respect to the rod insulators.
- FIG. 1 shows a switching device in the form of a circuit breaker
- FIG. 2 shows a variant of FIG. 1 with earth contact, in a graphic representation
- FIG. 3 shows a switching device designed as an earthing switch with a position switch, in a diagrammatic representation
- FIG. 4 shows a switch contact set in a diagram
- Figure 5 shows the mounting of a rod insulator on the base, in section.
- FIG. 1 shows a switching device designed as a disconnector.
- two rod insulators 2, 3 are held, which carry a switch contact set 4 at their upper ends.
- the rod insulator 2 is fixedly mounted on the base 1, the rod insulator 3 is pivotally supported by means of a joint 5.
- a drive (not shown in the drawing) engages, which causes the pivoting movement (see arrows) in the event of a shutdown of the section of the route.
- Loschhorner are designated, which protect the line contacts of the switch contacts explained later in more detail when switching on and off.
- FIG. 2 shows the arrangement according to FIG. 1 with an additional earth contact.
- a holder 8 which is connected to the earth line, is provided on the base 1 and accommodates a plurality of contact springs 9, which correspond to a contact knife 10.
- the contact knife 10 is on parts of the
- FIG. 3 shows a version which is constructed in a similar manner using the same components, but is here designed as a pure earthing switch.
- the earthing switch is drawn here in the open state (normal case); in this position the switch contact pairs 4.1 and 4.2 of the switch contact set 4 are separated from each other.
- Protective hoods 13, 14 are arranged above the two switch contact pairs 4.1 and 4.2, which protect the switch contacts against mechanical damage and weather influences. The same applies to the previously described embodiments.
- the switch contact set 4 comprises the two switch contact pairs 4.1 and 4.2, one of which is assigned to the fixed rod insulator and the other to the rod insulator which is held pivotably.
- Each switch contact pair is constructed identically and essentially consists of two parts, an L-shaped bent contact knife 15 and a contact spring 16 mounted thereon.
- the contact knives and the correspondingly arranged contact springs are rotated in pairs and rotationally symmetrically arranged.
- the contact springs 16 are adjustably attached to one, longer leg 15a so that they can be aligned with the contact blades corresponding to them on the other pair of contacts.
- the screw connection indicated by 17 is expediently guided in an appropriately designed elongated hole.
- This adjustment can be used to compensate for manufacturing tolerances which occur, for example, when the contact blades 15 are bent. In this way, contact resistances occurring during switching can be reduced to a minimum.
- the spring force can also be adjusted by spring-loaded adjusting means 18 and thus adapted to the circumstances.
- the switching contact pairs 4.1 and 4.2 are attached to the rod insulators 2 and 3 or 11 and 3 in such a way that that the longer leg 15a is screwed to the point designated 19 on a connecting part 20 ( Figure 1).
- the screw connection is designated by the position 21 in FIG. This easily releasable screw connection, in conjunction with the fastening of the rod insulators to the base 1, which will be explained in more detail later, enables the rod insulators to be replaced easily and without problems.
- an actuating element 23 can be fastened by means of an angle (not specified in more detail) Representation covered by the protective hood 14 and therefore not recognizable position switch 24, which actuates the rod insulator 3 in the pivoted-up state and can give a signal that grounding has taken place.
- the holes 25 present on the longer leg 15a serve to fasten the connecting cables for the power supply or discharge.
- FIG. 5 shows, partly in section, the mounting of the rod insulator 2 on the base 1.
- the rod insulator 2 essentially consists of a GRP rod covered with silicone, which has a large number of sprayed-on silicone caps 26 along its length.
- the end part 27 of the rod insulator facing the base 1 is sleeve-shaped and placed on a sleeve 28.
- the sleeve 28 is in turn held in a base part 29 of the base 1.
- the holder on the one hand of the sleeve 28 and on the other hand of the end part 27 of the rod insulator 2 is designed so that a precise adjustment of the rod insulator on the base 1 can be carried out.
- several set screws 30 are arranged on the circumference of the parts.
- the end of the rod insulator can also be used rod-shaped and adjustable in a correspondingly provided sleeve of the base.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Insulators (AREA)
- Emergency Protection Circuit Devices (AREA)
- Transmitters (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19837869 | 1998-08-20 | ||
DE19837869A DE19837869C1 (de) | 1998-08-20 | 1998-08-20 | Schaltvorrichtung zum Zu- und Abschalten oder Erden von Streckenabschnitten bei Fahrleitungsanlagen |
PCT/DE1999/002497 WO2000011690A1 (de) | 1998-08-20 | 1999-08-10 | Schaltvorrichtung zum zu- und abschalten oder erden von streckenabschnitten bei fahrleitungsanlagen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1105894A1 true EP1105894A1 (de) | 2001-06-13 |
EP1105894B1 EP1105894B1 (de) | 2002-04-17 |
Family
ID=7878194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99952352A Expired - Lifetime EP1105894B1 (de) | 1998-08-20 | 1999-08-10 | Schaltvorrichtung zum zu- und abschalten oder erden von streckenabschnitten bei fahrleitungsanlagen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1105894B1 (de) |
AT (1) | ATE216530T1 (de) |
DE (2) | DE19837869C1 (de) |
ES (1) | ES2176031T3 (de) |
NO (1) | NO319121B1 (de) |
WO (1) | WO2000011690A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ588373A (en) | 2004-05-19 | 2012-01-12 | Emisphere Tech Inc | Topical cromolyn formulations |
CA2496250C (en) * | 2005-02-08 | 2014-06-17 | General Electric Canada | Disconnect switch |
DE102013217925A1 (de) * | 2013-09-09 | 2015-03-12 | Siemens Aktiengesellschaft | Gleichspannungslasttrennschalter für Fahrleitungen eines Bahnstromversorungsnetzes und Verfahren zum Betreiben eines Gleichspannungslasttrennschalters |
DE102013218169A1 (de) | 2013-09-11 | 2015-03-26 | Siemens Aktiengesellschaft | Abbrandelement für eine Lichtbogenlöschanordnung, Lichtbogenlöschanordnung und Verfahren zur Herstellung eines Abbrandelements |
CN112151297B (zh) * | 2020-09-29 | 2022-11-15 | 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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1117953A (fr) * | 1955-05-11 | 1956-05-29 | Dispositif à expansion, à deux contacts mobiles et à pression opposés pour sectionneurs et interrupteurs électriques, en général, et en particulier pour disjoncteurs à deux bras pour haute et basse tension et fortes intensités | |
DE3025485C2 (de) * | 1980-07-03 | 1984-12-13 | Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka | Elektrischer Schalter |
DE3111793A1 (de) * | 1981-03-20 | 1982-09-30 | Siemens AG, 1000 Berlin und 8000 München | Lasttrennschalter mit einem schwenkbaren schaltarm und mit einer loescheinrichtung |
-
1998
- 1998-08-20 DE DE19837869A patent/DE19837869C1/de not_active Expired - Fee Related
-
1999
- 1999-08-10 ES ES99952352T patent/ES2176031T3/es not_active Expired - Lifetime
- 1999-08-10 DE DE59901274T patent/DE59901274D1/de not_active Expired - Lifetime
- 1999-08-10 WO PCT/DE1999/002497 patent/WO2000011690A1/de active IP Right Grant
- 1999-08-10 EP EP99952352A patent/EP1105894B1/de not_active Expired - Lifetime
- 1999-08-10 AT AT99952352T patent/ATE216530T1/de not_active IP Right Cessation
-
2001
- 2001-02-20 NO NO20010869A patent/NO319121B1/no not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO0011690A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE216530T1 (de) | 2002-05-15 |
ES2176031T3 (es) | 2002-11-16 |
DE19837869C1 (de) | 2000-05-11 |
NO20010869L (no) | 2001-02-20 |
DE59901274D1 (de) | 2002-05-23 |
WO2000011690A1 (de) | 2000-03-02 |
NO319121B1 (no) | 2005-06-20 |
NO20010869D0 (no) | 2001-02-20 |
EP1105894B1 (de) | 2002-04-17 |
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