EP0496213A1 - Disjoncteur, notamment disjoncteur comportant un fusible - Google Patents
Disjoncteur, notamment disjoncteur comportant un fusible Download PDFInfo
- Publication number
- EP0496213A1 EP0496213A1 EP92100246A EP92100246A EP0496213A1 EP 0496213 A1 EP0496213 A1 EP 0496213A1 EP 92100246 A EP92100246 A EP 92100246A EP 92100246 A EP92100246 A EP 92100246A EP 0496213 A1 EP0496213 A1 EP 0496213A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- load switch
- tracks
- fuse
- rotor
- 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
Images
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
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2025—Bridging contacts comprising two-parallel bridges
-
- 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
- H01H31/12—Adaptation for built-in fuse
-
- 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
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2025—Bridging contacts comprising two-parallel bridges
- H01H2001/2033—Bridging contacts comprising two-parallel bridges with a contact bridge on both opposite sides of a fixed contact pair, each contact bridge being moved to close or open the circuit
Definitions
- the invention relates to a circuit breaker, in particular a circuit breaker with fuse, with at least one fuse link, with a line that supplies the current and a line that carries the current away from it, each line having two separate, permanently arranged contact tracks, to which two movable contact bridges are assigned are, which contact the respective contact track diametrically in their switched-on position, the contact bridges being received by at least one actuating slide.
- the load switch is particularly intended for use as a switch fuse unit, Motor protection switches, disconnectors, etc. in the field of low voltage systems.
- a load switch designed as a so-called fuse switch disconnector which has three NH fuse links with the corresponding current-supplying and current-dissipating lines and contact bridges.
- the disadvantage here is that only one contact bridge is assigned to each line, which is pressed against the contact tracks by the force of a spring when the load switch is switched on. This harbors the risk of permanent vibrations of the contact bridge and thus of fusion with the contact tracks.
- a load switch of the type mentioned in which a single actuating slide is provided which can be displaced in the plane of the contact surfaces of the contact bridges, which necessitates a wide construction of the load switch.
- the contact bridges fixed in the actuating slide are pushed onto the free ends of the contact tracks, the contacts closing at different times due to the offset arrangement of the contact tracks of a line.
- a load switch of the type mentioned essentially in that two actuating slides arranged parallel to one another are provided, which can be moved in opposite directions by means of a switching mechanism, the contact tracks being arranged perpendicular to the direction of movement of the actuating slides and each actuating slide parallel to that of the respective line assigned contact tracks receives a contact bridge with axial play, the contact bridges in their switch-on positions connecting the assigned contact tracks to each other under spring preload.
- the current passed through the contact tracks is thus conducted in parallel in two partial flows through the contact bridges in the closed state of the load switch, both in the region of the line supplying the current and of the line discharging the current.
- the springs acting on the contact bridges therefore only have to be designed for the force that is necessary to secure the continuous current through the contact bridges, as a result of which the drive forces to be applied by the switching mechanism can be kept low.
- the actuating slides When the load switch is switched on, the actuating slides are moved towards one another in the longitudinal direction by means of the switching mechanism, the contact bridges being positioned such that in the switched-on position of the actuating slides they contact the contact tracks with an axial play predetermined by the actuating slides and thus solely on account of the spring forces acting on them are pressed against the contact tracks.
- the load switch When the load switch is opened, the actuation slides move them away from the contact tracks due to the positive connection to the contact bridges.
- the spring tension of the contact bridges is expediently generated by compression springs which are supported on the contact bridges and either on the actuating slide associated with the respective contact bridge or on a stationary part of the load switch.
- the compression spring or the compression springs for the extinguishing contact bridge should be installed in the assigned actuating slide. This protects it from the influence of the arc. Furthermore, this results in a partial mutual cancellation of the forces acting on the switching mechanism, with the result that the operation of the load switch is further facilitated.
- the contact bridges assigned to the respective line advantageously reach their switching positions at different times, the respective contact bridge contacting the assigned contact tracks simultaneously. Due to the switching positions being reached at different points in time, one contact bridge acts as an erase contact bridge and the other as a permanent contact bridge, the contact course of the permanent contact bridge being leading when switching off and lagging when switching on. This results in a quasi de-energized switching for the permanent contact bridge, which means that this contact bridge remains unloaded and therefore has a constantly low contact resistance for continuous current flow.
- the free ends of the contact tracks are advantageously U-shaped and the outer legs of the contact tracks with their U facing each other interact with the contact bridges. This design ensures that when the contact bridges are opened, an arc that arises is pushed outward by the natural blowing action, that is to say pushed away from the contact surfaces, into an extinguishing system that may be present.
- the switching mechanism comprises a rotor which can be rotated via a pitch circle, a first connecting rod in front of the apex and a second connecting rod for the latter on the circumferential region of the rotor, based on its rotation each associated actuating slide are articulated.
- the previously described leading or lagging movement of the contact bridges assigned to the two contact tracks can be achieved particularly easily if the connecting rods are articulated on a common circular path of the rotor, the second connecting rod being articulated slightly behind the apex and the first connecting rod further away from the apex, and the actuating slides being arranged parallel and equally spaced on both sides of the axis of symmetry running through the apex and the rotor axis .
- the points of engagement of the connecting rods on the rotor thus describe a sinusoidal movement in time, that is to say when the fuse switch is switched on or off.
- a plurality of load switches in modular design preferably form a load switching element in the form of a strip or isolator, which has a common switching mechanism.
- a first component of the module is advantageously formed by a housing that accommodates an NH fuse link, two conductors, each of which is assigned two contact tracks, two contact bridges, two actuating slides and two connecting rods, and a second component of the module by another housing , which includes the rear derailleur.
- three first module components are provided which are coupled directly to the second module component or indirectly to one another by means of connecting rods. Up to four first modules are advantageously provided.
- the switching mechanism itself expediently has a rotary handle with which the rotor can be actuated.
- a spring should cooperate with the rotor in such a way that it snaps at a defined intermediate position of the rotor, and thus causes a sudden swiveling of the rotor irrespective of the pivoting movement introduced into the rotor via the rotary handle, with the result that the contact bridges abruptly accordingly the closed position or open position are transferred.
- the fuse switch-disconnector shown there consists of three identical modules 1, each of which has an NH fuse link 2 and elements to be described in more detail for switching the associated NH fuse link 2.
- a further module 3 is arranged between two modules 1 and has essential elements of a switching mechanism for actuating the other modules 1.
- a cover plate 4 forms the end of the four modules 1 and 3, after these have previously been composed of two module housing halves, of which only one half 6 is shown, and in the area the plurality of indicated bores 5 were screwed together.
- the half shells forming the respective module housing 6 consist of electrically insulating material.
- the structure and the mode of operation of a module 1 which accommodates an NH fuse link 2 are described below:
- the module housing 6 takes two contact tracks built into it 7, which end in lyre contacts 8, into which the contact blades 9 of the NH fuse link 2 can be inserted.
- the ends of the contact tracks 7 facing away from the NH fuse link 2 run parallel and at a distance from one another, in the alignment of these contact tracks 7 two further contact tracks 10 are arranged at the same distance from these in the form of connecting rails.
- plate-shaped contact bridges 11 and 12 are also arranged on both sides of each contact track 7 and 11.
- two actuating slides 13 and 14 are slidably mounted perpendicular to the contact bridges 11 and 12, interacting with one another Stops of the actuating slide 13 and 14 limit their axial relative movement.
- the two contact bridges 11 can be moved by means of the associated actuating slide 13 and the two contact bridges 12 can be moved by means of the assigned actuating slide 14.
- the contact bridges 11 and 12 penetrate the guide slits 15 arranged in the transverse to the longitudinal extension of the actuating slides 13 and 14 and are prestressed in the closing direction by means of compression springs 16 and 18 against stops 38 of the actuating slides 13 and 14.
- FIG. 1 shows the position of the contact bridges 11 and 12 when the safety switching strip is switched; in the relevant position of the actuating slides 13 and 14, only the compression springs 16 and 18 act on the contact bridges 11 and 12.
- the housing 6 is open on both sides in the longitudinal extent of the actuating slides 13 and 14 and the actuating slides 13, 14 have holes 19 to be described in more detail with regard to their function in the region of the respective two ends.
- the module housing 6 of the module 3 also consists of two module halves which accommodate a rotor 21 which can be rotated about an axis 20 between them. Its swivel range is limited to approximately 40 °, in that a stationary stop 22 projects into the path of two projections 23 of the rotor 21.
- an adjusting lever 39 which is likewise rotatably mounted in the axis 20, can be pivoted between two inner rotor stops 40.
- the end of the actuating lever 39 facing away from the rotor 21 is provided with a pin 27.
- a pivot lever 24 is pivotable about an axis 25 arranged parallel to the axis 20 and to the pin 27.
- the end of the pivot lever 24 near the rotor has an elongated hole 26 which extends in the longitudinal direction thereof and through which the pin 27 passes.
- the respective connecting rod 32 is pivotally pivoted about the bearing point 30 in the plane of the rotor 21, for example by inserting a pin of this connecting rod 32 into a bore in the bearing point 30 of the rotor 21, and the other end of the connecting rod 32 is with a pin provided which passes through the associated bore 19 of the actuating slide 13.
- the pins of the connecting rod 33 penetrate the bore in the bearing point 31 of the rotor 21 and the associated bore 19 of the actuating slide 14.
- the switching bridge 11 designed as a permanent contact first lifts by the dimension y from the contact track 7 and thus also from the contact track 10, not shown, in the further switching course both contact bridges 11 and 12 move away from the contact track 7, so that after completion of this switching operation, in which the clockwise leading projection 23 of the rotor 21 abuts the stop 22, the contact bridge 11 by the amount x + y and the contact bridge 12 by the amount 11 have moved away from the contact tracks 7 and 10.
- the two contact bridges 11 and 12 initially move by the dimension x to the contact tracks 7 and 10, the contact bridge 12 having the function of an erase contact switching to the contact tracks 7 and 10. During the further switching movement, the contact bridge 11 finally bridges the remaining distance to the contact tracks 7 and 10 and likewise connects to them.
- the actual switching of the fuse switch is carried out by means of the actuating lever 29, which pivots the pivot lever 24 about its axis 25 over an eccentric section of the pivot axis 28.
- the control lever 39 is counteracted the force of the compression spring moves away from the stop 40 assigned to the switching position.
- the compression spring 42 relaxes and the adjusting lever 39 is suddenly pivoted into abutment with the other stop 40 and then via the further pivoting movement of the adjusting lever 39 due to the relaxation of the compression spring 42, the rotor 21 pivoted into the other switching position.
- FIGS. 3 to 5 clarify details relating to the contact bridges 11 and 12 which come into contact diametrically with the contact tracks 7 and 10.
- the contact bridges 11 and 12 which represent plate-shaped components have, on their sides facing the respective contact tracks 7 and 10, two flat contact nipples 34 and between These three guide grooves 35 on both sides, which cooperate with the actuating slides 13 and 14. This is illustrated in detail in FIG. 3, which shows the two housing halves 6 of the module into which the two actuating slides 13 and 14 are inserted, which engage in the grooves 35 of the contact bridges 11 and 12.
- FIGS. 1 and 2 finally illustrate that a plurality of modules 1 having the NH fuse links 2 can be arranged on one side of the module 3 having the switching mechanism.
- the respective facing ends of the actuating slides 13 and 14 of adjacent modules 1 are connected via connecting rods 36 and 37 designed correspondingly to the connecting rods 32 and 33.
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Fuses (AREA)
- Electronic Switches (AREA)
- Keying Circuit Devices (AREA)
- Push-Button Switches (AREA)
- Switches With Compound Operations (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4102143A DE4102143A1 (de) | 1991-01-25 | 1991-01-25 | Schaltbarer sicherungslastschalter fuer niederspannungssysteme |
DE4102143 | 1991-01-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0496213A1 true EP0496213A1 (fr) | 1992-07-29 |
EP0496213B1 EP0496213B1 (fr) | 1995-08-23 |
Family
ID=6423667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92100246A Expired - Lifetime EP0496213B1 (fr) | 1991-01-25 | 1992-01-09 | Disjoncteur, notamment disjoncteur comportant un fusible |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0496213B1 (fr) |
AT (1) | ATE126926T1 (fr) |
DE (2) | DE4102143A1 (fr) |
DK (1) | DK0496213T3 (fr) |
ES (1) | ES2078557T3 (fr) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0603503A1 (fr) * | 1992-12-22 | 1994-06-29 | Efen Elektrotechnische Fabrik GmbH | Procédé pour commuter d'un sectionneur à coupure en charge et à fusible et sectionneur |
EP0613159A2 (fr) * | 1993-02-25 | 1994-08-31 | PETERREINS SCHALTTECHNIK GmbH | Dispositif de commutation pour le montage et la commutation d'interrupteurs en charge |
DE10055035A1 (de) * | 2000-11-07 | 2002-05-16 | Peterreins Schalttechnik Gmbh | Lasttrennschalter mit mindestens einem Sicherungshalter |
WO2002049053A1 (fr) * | 2000-12-15 | 2002-06-20 | Socomec S.A. | Appareil de coupure electronique pour installation electrique |
EP1993176A1 (fr) | 2007-05-16 | 2008-11-19 | Siemens Aktiengesellschaft | Sectionneur à coupure en charge avec fusibles de type baguette |
EP1710822B1 (fr) * | 2005-04-04 | 2008-12-17 | Pronutec, S.A. | Interrrupteur compact |
WO2019162173A1 (fr) * | 2018-02-23 | 2019-08-29 | Eaton Intelligent Power Limited | Appareillage de commutation électrique |
EP4068322A1 (fr) * | 2021-03-31 | 2022-10-05 | Jean Müller GmbH Elektrotechnische Fabrik | Appareil de commutation pourvu de dispositif interrupteur à rupture brusque |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19523592C2 (de) * | 1995-06-29 | 2001-02-01 | Mueller Jean Ohg Elektrotech | Niederspannungs-Schaltgeräte-Kombination |
DE19852713C1 (de) * | 1998-11-16 | 2000-09-07 | Moeller Gmbh | Leistungsschalter |
DE102007043133B3 (de) * | 2007-09-11 | 2009-04-09 | Wöhner GmbH & Co. KG Elektrotechnische Systeme | Lasttrennschalter |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB767112A (en) * | 1953-12-16 | 1957-01-30 | Simplex Electric Co Ltd | Improvements relating to electrical switchgear |
GB800364A (en) * | 1954-03-27 | 1958-08-27 | Simplex Electric Co Ltd | Improvements relating to combined electrical switchgear and fuse assemblies |
DE2346928A1 (de) * | 1973-09-18 | 1975-07-31 | Dreefs E Kg | Kontaktsystem fuer drucktastenschalter |
DE2833497A1 (de) * | 1978-07-31 | 1980-02-21 | Bbc Brown Boveri & Cie | Elektrischer niederspannungs-lastschalter |
DE3010579A1 (de) * | 1980-03-19 | 1981-09-24 | Siemens AG, 1000 Berlin und 8000 München | Lastschalter, insbesondere sicherungslastschalter |
FR2516699A1 (fr) * | 1981-11-19 | 1983-05-20 | Technoelectric Srl | Structure pour disjoncteur comportant deux boitiers a commande manuelle |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1923973U (de) * | 1965-04-14 | 1965-09-23 | Hazemeijer Co | Schaltvorrichtung. |
FR1510980A (fr) * | 1966-12-12 | 1968-01-26 | Unelec | Appareil électrique à double coupure |
DE2339133A1 (de) * | 1973-08-02 | 1975-02-13 | Efen Elektrotech Fab | Sicherungsmotortrennschalter |
DE2905198A1 (de) * | 1979-02-12 | 1980-08-21 | Driescher Spezialfab Fritz | Sicherungsschalteinrichtung |
DD215202A1 (de) * | 1983-05-20 | 1984-10-31 | Oppach Schaltelektronik | Schaltsystemanordnung fuer elektrische schaltgeraete mit oeffnerfunktion |
DE8802457U1 (fr) * | 1988-02-25 | 1988-05-05 | Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg, De |
-
1991
- 1991-01-25 DE DE4102143A patent/DE4102143A1/de not_active Withdrawn
-
1992
- 1992-01-09 ES ES92100246T patent/ES2078557T3/es not_active Expired - Lifetime
- 1992-01-09 DK DK92100246.5T patent/DK0496213T3/da active
- 1992-01-09 AT AT92100246T patent/ATE126926T1/de not_active IP Right Cessation
- 1992-01-09 EP EP92100246A patent/EP0496213B1/fr not_active Expired - Lifetime
- 1992-01-09 DE DE59203322T patent/DE59203322D1/de not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB767112A (en) * | 1953-12-16 | 1957-01-30 | Simplex Electric Co Ltd | Improvements relating to electrical switchgear |
GB800364A (en) * | 1954-03-27 | 1958-08-27 | Simplex Electric Co Ltd | Improvements relating to combined electrical switchgear and fuse assemblies |
DE2346928A1 (de) * | 1973-09-18 | 1975-07-31 | Dreefs E Kg | Kontaktsystem fuer drucktastenschalter |
DE2833497A1 (de) * | 1978-07-31 | 1980-02-21 | Bbc Brown Boveri & Cie | Elektrischer niederspannungs-lastschalter |
DE3010579A1 (de) * | 1980-03-19 | 1981-09-24 | Siemens AG, 1000 Berlin und 8000 München | Lastschalter, insbesondere sicherungslastschalter |
FR2516699A1 (fr) * | 1981-11-19 | 1983-05-20 | Technoelectric Srl | Structure pour disjoncteur comportant deux boitiers a commande manuelle |
Non-Patent Citations (1)
Title |
---|
SIEMENS ENERGY & AUTOMATION. Bd VII, Supplement 4, Dezember 1987, BERLIN DE, Seiten 18-19 FUCHS, D ET AL. , 'Load Switch disconnector with Fuse - Short-Circuit Protection Included' * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0603503A1 (fr) * | 1992-12-22 | 1994-06-29 | Efen Elektrotechnische Fabrik GmbH | Procédé pour commuter d'un sectionneur à coupure en charge et à fusible et sectionneur |
EP0613159A2 (fr) * | 1993-02-25 | 1994-08-31 | PETERREINS SCHALTTECHNIK GmbH | Dispositif de commutation pour le montage et la commutation d'interrupteurs en charge |
DE4305746A1 (de) * | 1993-02-25 | 1994-09-01 | Peterreins Schalttechnik Gmbh | Schaltanordnung zur Aufnahme und zum Schalten von Lastschaltern |
EP0613159A3 (fr) * | 1993-02-25 | 1995-02-01 | Peterreins Schalttechnik Gmbh | Dispositif de commutation pour le montage et la commutation de commutateurs en charge. |
DE10055035A1 (de) * | 2000-11-07 | 2002-05-16 | Peterreins Schalttechnik Gmbh | Lasttrennschalter mit mindestens einem Sicherungshalter |
DE10055035C2 (de) * | 2000-11-07 | 2002-10-02 | Peterreins Schalttechnik Gmbh | Lasttrennschalter mit mindestens einem Sicherungshalter |
FR2818434A1 (fr) * | 2000-12-15 | 2002-06-21 | Socomec Sa | Appareil de coupure electrique pour installation electrique |
WO2002049053A1 (fr) * | 2000-12-15 | 2002-06-20 | Socomec S.A. | Appareil de coupure electronique pour installation electrique |
GB2384626A (en) * | 2000-12-15 | 2003-07-30 | Socomec Sa | Electronic switching apparatus for electrical installation |
GB2384626B (en) * | 2000-12-15 | 2004-03-10 | Socomec Sa | Electrical switchgear for an electrical installation |
EP1710822B1 (fr) * | 2005-04-04 | 2008-12-17 | Pronutec, S.A. | Interrrupteur compact |
EP1993176A1 (fr) | 2007-05-16 | 2008-11-19 | Siemens Aktiengesellschaft | Sectionneur à coupure en charge avec fusibles de type baguette |
WO2019162173A1 (fr) * | 2018-02-23 | 2019-08-29 | Eaton Intelligent Power Limited | Appareillage de commutation électrique |
US11145479B2 (en) * | 2018-02-23 | 2021-10-12 | Eaton Intelligent Power Limited | Electrical switchgear |
EP4068322A1 (fr) * | 2021-03-31 | 2022-10-05 | Jean Müller GmbH Elektrotechnische Fabrik | Appareil de commutation pourvu de dispositif interrupteur à rupture brusque |
Also Published As
Publication number | Publication date |
---|---|
ATE126926T1 (de) | 1995-09-15 |
DK0496213T3 (da) | 1995-12-27 |
DE59203322D1 (de) | 1995-09-28 |
DE4102143A1 (de) | 1992-08-06 |
ES2078557T3 (es) | 1995-12-16 |
EP0496213B1 (fr) | 1995-08-23 |
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