EP1064663B1 - Gasisolierter lasttrennschalter mit einer löschspule - Google Patents
Gasisolierter lasttrennschalter mit einer löschspule Download PDFInfo
- Publication number
- EP1064663B1 EP1064663B1 EP99910366A EP99910366A EP1064663B1 EP 1064663 B1 EP1064663 B1 EP 1064663B1 EP 99910366 A EP99910366 A EP 99910366A EP 99910366 A EP99910366 A EP 99910366A EP 1064663 B1 EP1064663 B1 EP 1064663B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- load
- winding
- break switch
- contact
- switch according
- 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
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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
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/187—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet comprising a hollow annular arc runner and a central contact between which a radially drawn arc rotates
Definitions
- the invention relates to a gas-insulated switch disconnector with an arcing coil according to the General term of the 1st claim.
- switch disconnectors in gas-insulated medium-voltage switchgear, whose phases are equipped with quenching coils to ensure switching capability.
- the Switching ability, etc. This ensures that the arc that arises during switching between the fixed contact and the movable switching contact of the respective phase is kept as small as possible and is quickly extinguished, so that the contacts burn is largely avoided.
- the quenching coils usually consist of a metallic one Coil core, on which a single or multi-layer winding is applied, in which the Arc is conducted and rotates before it passes through the resulting magnetic Field is deleted.
- the means for ensuring the switching ability can consist in that the quenching coils an auxiliary contact (EP 0 313 106 A2, EP 0 676 782 A2) or a "commutation element" (GB 2 196 794 A) at a distance from the fixed contact over which the switch contact side Base point of the arc (EP 0 313 106 A2) or the base point on the fixed contact side (the other two objects) in the coil and the arc in Episode in which is deleted.
- the switch contact contacts the on the respective coil core trained auxiliary contact directly.
- the subject of EP 0 021 577 A1 is a switch disconnector, the phases of which are equipped with a quenching coil.
- This has a winding body (coil core) and one single layer winding.
- There is an auxiliary contact for one in the inside of the winding body Coil protruding switch contact arranged during a switching operation of this is contacted before the main contact is closed or disconnected to the resulting To keep the arc small and to extinguish it in the shortest possible way.
- the auxiliary contact is used here as an element that the course of the arc between the switch contact and defined the winding body of the coil, the inner surface of the winding body as a running surface serves for the arc.
- the winding body also has on the side of the contacts an electrode to control the electrical field of the switching and isolating section.
- the W0 98/06120 there is a switchgear with a switch disconnector described, which is used as a transformer switch and its phases with a Quenching coil are provided.
- the quenching coil has a winding body with a guide element to the arc line in the coil up to the immediate vicinity of the fixed contact extends and arranged tangentially to the path of movement of the free end of the switch contact and that takes over the base point of the arc on the contact side.
- the quenching coil is a single or multi-layer, arranged on a winding body made of metal Winding and has a base element which takes over the base point of the arc, which is electrically connected to the winding and in the immediate vicinity of the fixed contact extends and tangential to the path of movement of the free end of the switch contact is arranged.
- the guide element is not necessarily at the base of the arc directed.
- the quenching coil must be blunt in relation to the switch contact or be arranged at right angles.
- the winding body consists of a non-magnetic Metal and the winding are usually made of copper tape with foil insulation between the strip layers, the beginning of the copper strip preferably through Soldering, riveting or screwing mechanically and therefore also electrically with the winding body connected is.
- the guide element is a guide plate that has the width of a switch blade, this as Double switching knife is designed and is known in generic switchgear is used and that in the "ON" switch position the fixed contact between the receives two switching knives arranged at a distance from each other. It means that the baffle has a considerable width. This baffle is a separate part, which is electrically connected to the coil winding via the winding body.
- the well-known from a winding body, a single or multi-layer and with fixed contact potential connected winding and a field control electrode formed quenching coil is designed and arranged according to the invention so that the contacts - a fixed contact and a movable switch contact - the respective phase of the switch disconnector facing end turn of the winding is metallic bare that the end portion of this Winding is directed to the fixed contact-side base of the arc, at which a switching movement of the movable contact of the arc, and that the free At the end of the end section, a minimum distance to this base point and to that at the Has movable contact at the end.
- the end turn facing away from the contacts the winding is connected to the fixed contact potential.
- the arc is running the end turn.
- the quenching coil is independent of the switch structure and the spatial conditions in the switch contact area on all switch disconnectors or switches that require a load switching capacity.
- the winding body consists of a conductive plastic and can have an electrode element on the contact side for field control.
- a cover made of a conductive plastic is placed over the winding is arranged, which also has an electrode element for field control on the contact side.
- the end of the winding wire is arranged so that one arising between the contacts Arc commutated into the quenching coil. So the contact side is free End section of the end turn regardless of its due to the location of the fixed contact certain direction in a simple manner on the out of the two electrode elements arc electrode formed predetermined fixable.
- thermoplastic can advantageously be used as the plastic because of its mechanical properties Plastic are used, which preferably has a conductivity of 50 to 5000 Ohm volume resistance.
- the plastic can be provided with constituents that are involved in the formation of the arc and the associated warming give up extinguishing gas so that the extinguishing gas concentration in the area of the quenching coil and the switching distance increased and the extinguishing capacity the quenching coil can be increased.
- the contact-side free end section of the winding can also be covered with a increased erosion resistance to increase the life of the quenching coil, preferably with a pressed-on sleeve.
- the winding body is advantageous on the side facing away from the contacts for relief the assembly of the quenching coil with a molded fastener, the Training depending on the respective switch type or the spatial conditions can be predetermined.
- This fastener can also be used as a holder and guide serve for the end of the winding facing away from the contact, so that these together mechanically and electrically with the respective contact element, for example a busbar, are connectable.
- the fastening element can be a press-in groove for the Have end of the winding.
- an erase coil 1 which surrounds a fixed contact 2 and together with this on a fixed contact carrier 3, which has a busbar, not shown is connected, is arranged. With the fixed contact 2 there is a movable switch contact 4 in operative connection.
- the quenching coil 1 has a conductive plastic (POM - Polyoxymethylene) existing winding body 5 with a conductivity of substantially 4000 ohm volume resistance, a single-layer winding 6 and a covering this Cover 7 made of the same plastic.
- POM - Polyoxymethylene conductive plastic
- the end turn 9 facing the contacts 2 and 4 is bright metallic (not shown), the other turns are insulated.
- the end section 10 of this turn is too angled in the radial direction to the inside of the coil and to the base of the arc directed at the fixed contact 2.
- the free end has a distance a of 5 mm from it Base as well as to the moving past and also to the one in the closed position movable contact 4.
- the end region 11 facing away from contacts 2 and 4 Winding 6 is common with a fastening element molded onto the winding body 5 12 screwed to the fixed contact body 3 with a fastening screw 13 and electrically connected.
- the fastening element 12 has a press-in groove (not shown) for the End area 11 and serves as a holder and guide for this.
- Fig. 2 shows that the free end of a movable contact 4a (double switching knife) in the closed position is arranged with a fixed contact 2a in the quenching coil 1.
- the end area 10 of the end turn 9 facing the contacts 2a and 4a is in FIG immediate vicinity of the fixed contact 2a in the swivel range of the movable contact 4a in the area between its switching knife.
- the contact 4 (4a) If the contact 4 (4a) is pivoted into its open position, it detaches from the fixed contact 2 (2a) when an arc is formed between the central region of the upper edge of the Fixed contact 2 (2a) and the movable contact 4 (4a). If the contact 4 (4a) the Has passed at the end of the end region 10, the fixed contact-side base point of the arc taken from this end region 10, the arc is conducted into the winding 6 and deleted in a known manner.
- FIG. 3 shows a further embodiment and arrangement of a quenching coil according to the invention 14 shown on a phase of a switch disconnector.
- the quenching coil 14 is next to that Fixed contact 15 on the fixed contact carrier 16 with its axis A at an angle of 30 ° arranged opposite this. It has a winding body 17 with one on the Fixed contact carrier 16 facing away from the electrode element 18, a single-layer Winding 19, a cover 20 with an electrode element 21 and a molded one Fastening element 22.
- the end section 23 of the contact-side, bare metal End turn 24 is at the fixed contact base of the movable when disconnecting and formed as a double switching knife contact 25 arising from the fixed contact 15 Arc directed, the distance of the end of the end portion 23 of this fixed contact is 3 mm.
- the end section 23 is at an angle of 30 ° the axis A and angled from a molded on the cover 20 support member 26 supports.
- the fastening element is on the winding contact 17 on the fixed contact carrier side 22, to which the end region 27 facing the fixed contact carrier 16 the winding 19 out and with this together with the fastening screw 28 on Fixed contact carrier 16 is fixed mechanically and electrically.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Transformer Cooling (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Description
- Fig. 1:
- eine Löschspule mit einem mittig in dieser angeordneten Festkontakt,
- Fig. 2:
- eine weitere Anordnung der Löschspule mit mittig angeordnetem Festkontakt und
- Fig. 3:
- eine zweite Ausführung der Löschspule, angeordnet neben einem Festkontakt.
Claims (12)
- Gasisolierter Lasttrennschalter mit einer Löschspule, dessen Phasen einen ortsfesten (2,2a,15) und einen beweglichen (4,4a,25) Kontakt aufweisen, mit einem eine ein- oder mehrlagige und mit Festkontaktpotential verbundene Wicklung (6,19) tragenden Wickelkörper (5,17) und mit einer Feldsteuerelektrode (8; 18) sowie mit einem Leitelement, das bis in die unmittelbare Nähe des Festkontaktes (2,2a,15) reicht, dadurch gekennzeichnet, daß der Wickelkörper (5;17) aus einem leitfähigen Kunststoff besteht, daß das Leitelement von dem Endabschnitt der den Kontakten (2/4; 2a/4a; 15/25) zugewandten Windung (9;24) der Wicklung (6;19) gebildet ist, wobei diese Windung (9;24) metallisch blank und auf den festkontaktseitigen Fußpunkt gerichtet ist, und daß das freie Ende dieses Endabschnittes (10; 23) einen Mindestabstand zu diesem Fußpunkt und zu dem an dem Ende vorbeibewegbaren beweglichen Kontakt (4; 4a; 25) hat.
- Lasttrennschalter nach Anspruch 1, dadurch gekennzeichnet, daß die Wicklung (6; 19) mit einer Abdeckung (7; 20) aus einem leitfähigen Kunststoff versehen ist.
- Lasttrennschalter nach Anspruch 1, dadurch gekennzeichnet, daß der Wickelkörper (5; 17) kontaktseitig ein Elektrodenelement (8; 18) zur Feldsteuerung aufweist.
- Lasttrennschalter nach Anspruch 2, dadurch gekennzeichnet, daß die Abdeckung (7; 20) kontaktseitig ein Elektrodenelement (8a; 21) zur Feldsteuerung aufweist.
- Lasttrennschalter nach Anspruch 2, dadurch gekennzeichnet, daß der Kunststoff thermoplastisch ist.
- Lasttrennschalter nach Anspruch 1 oder 5, dadurch gekennzeichnet, daß der Kunststoff eine Leitfähigkeit von 50 bis 5000 Ohm Durchgangswiderstand aufweist.
- Lasttrennschalter nach Anspruch 1, 2, 5 oder 6, dadurch gekennzeichnet, daß der Kunststoff Bestandteile aufweist, die Löschgas freisetzen.
- Lasttrennschalter nach Anspruch 1, dadurch gekennzeichnet, daß der Endabschnitt (10; 23) der Windung (9; 24) mit einer Umhüllung mit erhöhter Abbrandfestigkeit versehen ist.
- Lasttrennschalter nach Anspruch 8, dadurch gekennzeichnet, daß die Umhüllung aus einer den Endabschnitt (10; 23) aufgepreßten Hülse gebildet ist.
- Lasttrennschalter nach Anspruch 1 oder 3, dadurch gekennzeichnet, daß der Wickelkörper (5;17) auf der den Kontakten (2/4; 2a/4a; 15/25) abgewandten Seite ein Befestigungselement (12; 22) aufweist.
- Lasttrennschalter nach Anspruch 10, dadurch gekennzeichnet, daß das Befestigungselement (12; 22) als Halterung und Führung für den den Kontakten (2/ 4; 2a/ 4a; 15/ 25) abgewandten Endbereich (11; 27) der Wicklung (6; 19) dient, derart, daß diese gemeinsam mit dem Befestigungselement (12; 22) am Festkontaktträger (3; 16) mechanisch festlegbar und elektrisch kontaktierbar ist.
- Lasttrennschalter nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß das Befestigungselement (12; 22) eine Einpreßnut für den Endbereich (11; 27) der Wicklung (6; 19) aufweist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813217 | 1998-03-26 | ||
DE19813217A DE19813217C1 (de) | 1998-03-26 | 1998-03-26 | Löschspule für gasisolierte Lasttrennschalter |
PCT/EP1999/001828 WO1999049488A1 (de) | 1998-03-26 | 1999-03-19 | Löschspule für gasisolierte lasttrennschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1064663A1 EP1064663A1 (de) | 2001-01-03 |
EP1064663B1 true EP1064663B1 (de) | 2001-12-12 |
Family
ID=7862320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99910366A Expired - Lifetime EP1064663B1 (de) | 1998-03-26 | 1999-03-19 | Gasisolierter lasttrennschalter mit einer löschspule |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP1064663B1 (de) |
CN (1) | CN1120511C (de) |
AT (1) | ATE210886T1 (de) |
BR (1) | BR9908370A (de) |
CZ (1) | CZ296224B6 (de) |
DE (2) | DE19813217C1 (de) |
ES (1) | ES2168857T3 (de) |
NO (1) | NO317375B1 (de) |
PL (1) | PL191260B1 (de) |
WO (1) | WO1999049488A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008031468B3 (de) * | 2008-07-01 | 2010-04-08 | Siemens Aktiengesellschaft | Lasttrennschalter mit einer Lichtbogenlöscheinrichtung |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8878092B2 (en) | 2009-06-25 | 2014-11-04 | Mitsubishi Electric Corporation | Gas-insulated switchgear |
CN106710947B (zh) * | 2017-02-07 | 2019-01-22 | 平高集团有限公司 | 直动式三工位负荷开关及使用该负荷开关的开关柜 |
CN107910225A (zh) * | 2017-11-24 | 2018-04-13 | 周敬存 | 一种用于环网柜上的灭弧装置及其灭弧方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0021577B1 (de) * | 1979-05-25 | 1984-03-07 | South Wales Switchgear Limited | Elektrisches Schaltgerät des Typs mit rotierendem Bogen und doppelter Unterbrechung |
FI78195C (fi) * | 1986-10-27 | 1989-06-12 | Stroemberg Oy Ab | Stroembrytare. |
EP0313106B1 (de) * | 1987-03-12 | 1992-12-16 | Merlin Gerin Limited | Elektrische Schaltanlage |
US5464956A (en) * | 1994-04-08 | 1995-11-07 | S&C Electric Company | Rotating arc interrupter for loadbreak switch |
DE19631817C1 (de) * | 1996-08-07 | 1998-03-12 | Felten & Guilleaume Energie | SF¶6¶-gasisolierte Schaltanlage für Verteilernetze |
-
1998
- 1998-03-26 DE DE19813217A patent/DE19813217C1/de not_active Expired - Fee Related
-
1999
- 1999-03-19 DE DE59900543T patent/DE59900543D1/de not_active Expired - Lifetime
- 1999-03-19 CN CN99801182A patent/CN1120511C/zh not_active Expired - Fee Related
- 1999-03-19 BR BR9908370-1A patent/BR9908370A/pt not_active IP Right Cessation
- 1999-03-19 WO PCT/EP1999/001828 patent/WO1999049488A1/de active IP Right Grant
- 1999-03-19 EP EP99910366A patent/EP1064663B1/de not_active Expired - Lifetime
- 1999-03-19 ES ES99910366T patent/ES2168857T3/es not_active Expired - Lifetime
- 1999-03-19 CZ CZ20000918A patent/CZ296224B6/cs not_active IP Right Cessation
- 1999-03-19 PL PL341863A patent/PL191260B1/pl unknown
- 1999-03-19 AT AT99910366T patent/ATE210886T1/de not_active IP Right Cessation
-
2000
- 2000-02-09 NO NO20000646A patent/NO317375B1/no not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008031468B3 (de) * | 2008-07-01 | 2010-04-08 | Siemens Aktiengesellschaft | Lasttrennschalter mit einer Lichtbogenlöscheinrichtung |
Also Published As
Publication number | Publication date |
---|---|
DE59900543D1 (de) | 2002-01-24 |
PL341863A1 (en) | 2001-05-07 |
CZ296224B6 (cs) | 2006-02-15 |
ATE210886T1 (de) | 2001-12-15 |
PL191260B1 (pl) | 2006-04-28 |
BR9908370A (pt) | 2000-11-21 |
CZ2000918A3 (cs) | 2000-07-12 |
NO317375B1 (no) | 2004-10-18 |
DE19813217C1 (de) | 1999-11-25 |
NO20000646D0 (no) | 2000-02-09 |
WO1999049488A1 (de) | 1999-09-30 |
CN1120511C (zh) | 2003-09-03 |
EP1064663A1 (de) | 2001-01-03 |
CN1274468A (zh) | 2000-11-22 |
ES2168857T3 (es) | 2002-06-16 |
NO20000646L (no) | 2000-09-26 |
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