EP0801410A2 - Appareillage interrupteur d'installation électrique - Google Patents
Appareillage interrupteur d'installation électrique Download PDFInfo
- Publication number
- EP0801410A2 EP0801410A2 EP97105731A EP97105731A EP0801410A2 EP 0801410 A2 EP0801410 A2 EP 0801410A2 EP 97105731 A EP97105731 A EP 97105731A EP 97105731 A EP97105731 A EP 97105731A EP 0801410 A2 EP0801410 A2 EP 0801410A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching device
- installation switching
- ptc resistor
- plates
- resistor
- 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
- 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
- H01H33/16—Impedances connected with contacts
- H01H33/161—Variable impedances
-
- 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
- H01H33/16—Impedances connected with contacts
- H01H33/161—Variable impedances
- H01H2033/163—Variable impedances using PTC elements
Definitions
- the invention relates to an installation switching device according to the preamble of claim 1.
- Such an installation switching device is known per se and is sold, for example, under the name S 280 from ABB Stotz-Kontakt GmbH, Heidelberg.
- This switching device is designed for a certain breaking capacity and it is therefore an object of the invention to upgrade the installation switching device for higher breaking capacities without any particular additional space requirement and great construction or assembly effort.
- the resistor arrangement with a positive temperature coefficient which is also called PTC resistor for short, is accommodated to the side of the installation device in a space delimited by a cup-shaped shell housing, the free edges of the shell housing resting against the side face of the installation device.
- the shell housing has the outer contour of the installation switching device.
- a sufficient PTC resistor can be provided, in particular for a circuit breaker, which is accommodated in an additional room next to the installation switching device, so that the overall width of the installation switching device with PTC resistor is only slightly larger than that of the installation switching device itself.
- the installation switching device is designed in a shell construction with an approximately T-shaped contour having a base as a crosspiece, then in a preferred embodiment the PTC resistor is formed by at least one rectangular plate element, the circumferential contour of which is adapted to the contour of the base.
- a particularly advantageous embodiment of the invention can be such that the PTC resistor between two metallic plates made of electrically conductive material, preferably made of copper, has a film made of PTC material.
- the two metallic plates and the film made of PTC material can be held together by means of clips arranged on the long sides, which according to a further embodiment are made of metallic material, with an insulating film between the plates and the clips for insulation the plates are arranged opposite the brackets.
- the longitudinal side edges of the plates which are adjacent to the clamps and are made of electrically highly conductive material, are covered by means of insulating profiles which are arranged between the clamps and the longitudinal side edges.
- a limiting resistor in the form of a resistance wire is preferably connected in parallel with the PTC resistor.
- the PTC resistor can be switched on anywhere in the line path of the electrical installation device, it has been found to be advantageous essentially for constructional reasons to connect the PTC resistor between a connection terminal and the thermal release.
- the PTC resistor can be connected to the terminal using a connecting lug attached to it and to the thermal release using a wire.
- the electrically conductive connection between the PTC resistor and the corresponding connection points in the current path there are also other possibilities of the electrically conductive connection between the PTC resistor and the corresponding connection points in the current path.
- the resistance wire is preferably excluded with one end on the connecting lug and the other end on the stranded wire.
- the circuit breaker 10 is shown, which is housed in a housing 11 in a narrow construction.
- the circuit breaker 10 has a connection terminal 12 which has a terminal frame 13 and a box frame 14, an arc quenching plate packet 15, an electromagnet system 16, the coil 17 of which is connected at one end 18 to a V-shaped carrier 19 for a thermal bimetal 20 serving as a thermal trigger; the bimetallic metal 20 is fastened to an arm 21 of the V-shaped support 19, whereas the other arm is connected to the end 18 of the coil 17.
- the circuit breaker 10 has a second terminal 22 and a switch lock 23 with a switch toggle (not shown) and a contact point 23a.
- a strand 24 is fastened to the bimetallic metal 20 in its fastening area, see below.
- the clamp frame 13 is closed in itself and has two side walls 25 which are connected to one another by an upper web wall 26 and a lower web wall 27.
- the terminal frame 13 is part of a terminal known per se.
- This PTC resistor comprises two plates 35 and 37 made of an electrically highly conductive material, e.g. B.
- the formation 34 is integrally connected to the plate 35; a projection 41 is formed on the plate 37, to which the strand 24 is fastened. Furthermore, one end of a resistance wire 42 is connected to the formation 34, which forms a loop shape which is in principle L-shaped, the L-shape being visible by projection into the plane of the plates 35 and 37.
- the leg 43 of the L-shape itself is again U-shaped, with a first U-leg 44 and a second U-leg 45, the U-leg 44 with the formation 34 and the U-leg 45 are firmly connected to the terminal lug 41.
- the sections 46 and 47 of the leg 48 are, based on the position of FIG. 1, connected to the formation 34 from above and to the connecting lug 41 from below.
- the PTC resistor 36 which has an elongated rectangular contour that corresponds in shape to the shape of the base or crossbar of the circuit breaker according to FIG. 4, is placed on the outside of a housing side or top part 50 with which the housing bottom part 11 4 is closed.
- the upper housing part 50 has a channel 51 running along the fastening side of the installation switching device according to FIG. 4, into which the leg 45 for guiding the resistance wire 42 is inserted.
- the web 32 and the strand 24 is visible, so that the summary of the individual drawings shows how the PTC resistor 35 is assigned to the circuit breaker 10. From Fig.
- Resistor 42 is a limiting resistor that limits the current through PTC resistor 36 in its high-resistance state so that it is not damaged in the event of high short-circuit currents.
- the PTC resistor 36 is located between the thermal release 20 and the adjacent connection terminal 12.
- this resistor can be used or switched on at any point within the current path; in the case of a line circuit breaker, the PTC resistor can also be switched on between the thermal release 20 and the magnetic release 16, the magnetic release 16 and the contact point 23a or between the contact point 23a and the other connection terminal 22.
- the housing parts are connected to one another by means of conventional means, for. B. rivets or screws.
Landscapes
- Thermistors And Varistors (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19614438A DE19614438A1 (de) | 1996-04-12 | 1996-04-12 | Elektrisches Installationsschaltgerät |
DE19614438 | 1996-04-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0801410A2 true EP0801410A2 (fr) | 1997-10-15 |
EP0801410A3 EP0801410A3 (fr) | 1998-08-26 |
EP0801410B1 EP0801410B1 (fr) | 2003-01-22 |
Family
ID=7791060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97105731A Expired - Lifetime EP0801410B1 (fr) | 1996-04-12 | 1997-04-07 | Appareillage interrupteur d'installation électrique |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0801410B1 (fr) |
DE (2) | DE19614438A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2555217A1 (fr) | 2011-08-02 | 2013-02-06 | Abb Ag | Système de limitation de courant |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4308986A1 (de) * | 1993-03-20 | 1994-09-22 | Licentia Gmbh | Schutzschalter |
EP0661790A2 (fr) * | 1993-12-30 | 1995-07-05 | Eaton Corporation | Technique d'amortissement de courant triphasé |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE629692A (fr) * | 1963-04-01 | |||
DE2328004A1 (de) * | 1973-06-01 | 1974-12-19 | Bbc Brown Boveri & Cie | Kurzschlusschutzsystem fuer hohe schaltleistungen |
DE3727357A1 (de) * | 1987-08-17 | 1989-03-02 | Asea Brown Boveri | Verankerung von einbauteilen in elektrischen schaltgeraeten |
DE4300909C2 (de) * | 1993-01-15 | 1997-02-06 | Abb Patent Gmbh | Thermischer Auslöser, insbesondere für einen Leitungsschutzschalter |
DE29503285U1 (de) * | 1995-02-27 | 1996-03-28 | Aeg Niederspannungstech Gmbh | Schaltgerät |
-
1996
- 1996-04-12 DE DE19614438A patent/DE19614438A1/de not_active Withdrawn
-
1997
- 1997-04-07 DE DE59709171T patent/DE59709171D1/de not_active Expired - Fee Related
- 1997-04-07 EP EP97105731A patent/EP0801410B1/fr not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4308986A1 (de) * | 1993-03-20 | 1994-09-22 | Licentia Gmbh | Schutzschalter |
EP0661790A2 (fr) * | 1993-12-30 | 1995-07-05 | Eaton Corporation | Technique d'amortissement de courant triphasé |
Non-Patent Citations (1)
Title |
---|
HANSSON T: "POLYETHYLENE CURRENT LIMITERS FOR SHORT-CIRCUIT PROTECTION DOPED POLYMERS POINT PROTECTION TECHNOLOGY IN A NEW DIRECTION" ABB REVIEW, Nr. 4, 1.Januar 1992, Seiten 35-38, XP000304695 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2555217A1 (fr) | 2011-08-02 | 2013-02-06 | Abb Ag | Système de limitation de courant |
Also Published As
Publication number | Publication date |
---|---|
EP0801410B1 (fr) | 2003-01-22 |
EP0801410A3 (fr) | 1998-08-26 |
DE59709171D1 (de) | 2003-02-27 |
DE19614438A1 (de) | 1997-12-11 |
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