EP0655760B1 - Elektrische Schalteinrichtung - Google Patents
Elektrische Schalteinrichtung Download PDFInfo
- Publication number
- EP0655760B1 EP0655760B1 EP94118458A EP94118458A EP0655760B1 EP 0655760 B1 EP0655760 B1 EP 0655760B1 EP 94118458 A EP94118458 A EP 94118458A EP 94118458 A EP94118458 A EP 94118458A EP 0655760 B1 EP0655760 B1 EP 0655760B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch device
- linear resistor
- sleeve
- linear
- switching mechanism
- 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
- H01H33/16—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 electrical switching device according to the preamble of the claim 1.
- Switching devices with which in particular in the medium voltage and high voltage range Overcurrents, preferably short-circuit currents, are switched off trained as a circuit breaker, for. B. for high voltage as SF6 circuit breaker or for medium voltage as vacuum switch or low oil switch as well as also SF6 circuit breaker.
- a switching device of the type mentioned at the outset is known from EP 0 363 746 A1 Principle became known. After that is a thermistor that has a positive temperature coefficient has, connected in series with a contact arrangement and parallel to The thermistor is a varistor and parallel to the thermistor can also be Be switched coil with which the contact device can be opened.
- EP 0 363 746 A1 does not state which type of switching device is used. It can be seen that the thermistor has a thermal delay device is provided, so that the arrangement only for the motor protection or for the Short-circuit protection can be used in low-voltage switchgear, which conventional fuses as well as automatic fuses replaced can be.
- WO 93/07667 describes the series connection of a thermistor with a trigger element described and there is an impedance parallel to the thermistor; only with the 10 and 11, a varistor is controlled in parallel with the thermistor.
- a miniature circuit breaker is to be provided for the switching device his.
- the object of the invention is to provide a switching device for medium or high voltage to create the type mentioned, which is cheaper with the same switching capacity can be produced.
- the invention takes advantage of certain materials and certain compositions of materials, such as those in the DE 42 21 309 A1 are described, with increasing current their temperature and thus their Increase resistance. If you connect such a non-linear resistor in series with a switching device, then when a short-circuit current occurs or in general an overcurrent limits this current so that the prospective short circuit or Overcurrent is not reached. This has the consequence that a specifically for short-circuit shutdowns designed circuit breaker does not have to be used, but that a disconnector or switch disconnector can be used that is only capable must be to switch off the residual or nominal current in a certain time. The usage of such a non-linear resistor in connection with such a separation or switch disconnector leads to a significant reduction in the cost of one Short-circuit switching device.
- the disconnector or switch disconnector can be used for certain Purposes as a quick disconnect switch; it’s also possible, when the non-linear resistor holds the voltage for a relatively long time can use an inexpensive, if not to say cheap, slow disconnector, which in the off position is only able to maintain the voltage.
- An impedance is connected in parallel with the non-linear resistor.
- This Impedance can be linear or non-linear, i.e. H. voltage-dependent. You can as Capacitor can be formed, which can charge, so as to reduce voltage spikes.
- a varistor or a resistor can also preferably be used be provided.
- the impedance can be integrated with the nonlinear resistor or be discreet.
- the Non-linear resistance is a means of detecting the change in properties the resistance associated with a change in current in the network conductor, which means when it occurs of the determined overcurrent generate a signal that an actuator is supplied for the disconnector or switch disconnector.
- the non-linear resistance changes when an overcurrent occurs and the Temperature on the other hand its geometric dimensions; the change in dimensions, in particular the change in volume or length can be used for this to effect a shutdown.
- a temperature measuring element can also be attached to the resistor become; the increase in temperature then generates the signal in question.
- an actuator for. B. in the form of a piezo element, which is switched when the increased voltage drop occurs this voltage is applied to the resistor and thereby also a voltage Changes in length or a deflection. This change in length or deflection can then to actuate the actuator to turn off the Switch disconnector can be used.
- the non-linear resistor or resistance element is a switching mechanism is associated with a latching point that actuates the switching device.
- the switching mechanism can be a sliding element be assigned, which is preferably designed as a pin or sleeve and controls the actuator for the switch or directly actuates the switch.
- the non-linear resistor can of course also be one according to claim 8 or 9 be assigned an electromagnetic trigger that actuates the switching mechanism, d. H. unlatched.
- a conductor can be connected to an electrode of the non-linear resistor be part of the electromagnetic trigger.
- the carrier arrangement can be according to one of claims 12 and 13 be formed or comprise according to claim 14 a sleeve made of insulating material, which at least encloses the non-linear resistor, the non-linear Resistance can be immediately and tightly enclosed by the shell and the trigger and / or switching mechanism are housed in a free interior of the sleeve.
- the sleeve can be tubular, preferably cylindrical be and have caps at their ends, at which an electrical supply or Discharge is connected.
- the insulating material for the carrier arrangement in particular the shell is a material with a preferably voltage-dependent Resistance value, preferably varistor ceramic, can be achieved, whereby that local overvoltages can be derived.
- a preferably voltage-dependent Resistance value preferably varistor ceramic
- the sliding element can preferably be designed as a pin be and are under the pressure of a spring assembly, so that it is unlatched the latch changes its position, e.g. B. jumps out of the shell.
- the switching mechanism with a Lock formed by a spring element which has a pin which of the Force is exerted by a spring, holds at nominal current and releases at overcurrent.
- the spring element can according to claim 22 made of bimetal or one Shape memory alloy to be made and formed.
- a fuse wire can also be used as a lock, which holds the sliding element against the force of a spring. As soon as the overcurrent occurs, the fuse wire will melt and release the force of the spring.
- the sliding element in a sleeve is held at one end in which a compression spring and the Fusible wire is added and that the sleeve at the other end has a contact protrusion with one with the non-linear Resistance electrically connected mating contact is contactable. If the fuse wire melts and the sliding element has jumped outwards, causing the Trigger for the switch-disconnector is only needed a new sleeve with the sliding element, the compression spring and the fuse wire can be used, so that the exchange very is simple.
- the three conductors R, S, T each contain one that is not linear Resistor serving PTC resistor 11, 12 and 13, the a non-linear impedance 11a, 12a, 13a, preferably a varistor is assigned, as well as a dashed line Disconnector 14 with contact points 15, 16 and 17 in the conductors R, S, T.
- the disconnector 14 also includes a switch actuator 18, which via feed lines 19, 20, 21, which are connected to a common line 22 with Tripping elements 23, 24 and 25 are connected.
- the trigger elements 23, 24 and 25 are assigned to the PTC resistors 11, 12 and 13 and detect changes in the properties of the PTC resistors 11, 12 and 13, being due to the detected Send changes via lines 19, 20, 21, 22 signals, with which the actuating mechanism 18 is controlled so that contacts 15, 16 and 17 are opened.
- the PTC resistors 11, 12 and 13 change when increasing the R, S, T conductors flowing current values their temperature and thus their electrical Resistance, so that the contact points 15, 16 and 17 of the circuit breaker 14 flowing current is limited.
- elements to detect the change in the properties of the PTC resistors 11, 12 and 13 can do a variety of means to be used.
- the triggers 23, 24, 25 can also be omitted and the PTC resistors 11, 12, 13 accommodate the actuator.
- the sleeve 35 is made of electrically insulating Material and on the lid 36 and the plate 39 is a feed conductor 41 or discharge conductor 42 connected to the 3 in the course of, for example, the Mains conductor R can be used.
- the lever mechanism 40 is preferably made of insulating material.
- the one on plate 39 connected conductor 42 is through an opening 43 from the room 18 led out; the lever linkage 40 stands over a hole 44 in connection with the plate 39.
- too Handrails are used, with a handrail in the middle PTC resistance can penetrate.
- the material from which the Cover or the handrails is or are insulating Material, possibly with non-linear voltage-dependent resistance value, e.g. B. varistor ceramic.
- the element is, for example 23, with the changes in the properties of the PTC material 11 are detected, quasi integrated with the PTC resistor, and the lever linkage 40 corresponds in its operation to that Cable run 19/22.
- a PTC resistor 50 is used; is in parallel a voltage measuring device 51 connected via a line 52 an actuator 53 in the form of a piezo element, a voltage signal feeds.
- This tension causes a change in length of the piezo element 53, the actuating mechanism via a linkage 54 18 can be fed so that the contact point 11, for example can be opened.
- a piezo element 53 whose change in length can be used, could also be a piezo element be used, the deflection of which are exploited can; corresponding piezo materials are, for example, from the Siemens font "Vibrit" piezoceramic from Siemens, order no. N-281/5053, 190 163 PA 2818.
- FIG. 5 Another solution is shown in FIG. 5.
- a ladder R is a PTC resistor 60 inserted and in parallel a fuse 61.
- This fuse 61 is known per se and has a sleeve 62, one end of which has a contact cap 63 and the other end closed with a contact cap 64 is.
- a guide stub 65 is crimped into the contact cap 64, in which a pin 66 is guided.
- Zu and Discharge lines 67 and 68 are the cover caps 63 and 64 connected to the line conductor R so that the fuse 61 in parallel is connected to the PTC resistor. If there is an overcurrent occurs, the resistance of the PTC material will increase sharply, so the current is essentially through the fuse flows. As a result, the fuse wire 67 is melted and the pin 66 in the direction of arrow A in the dashed position 66a spent. This movement of the pin 66 becomes the operating mechanism 18 fed so that the load break switch 14th can be operated.
- a relatively simple fuse can be used as a fuse that can only withstand the voltage, but no nominal current must lead. It only needs for a small nominal current to be designed.
- FIG. 6 Another embodiment of the invention is shown in FIG. 6. Located within a sheath 70 of insulating material there is a PTC resistor 71. In FIG. 6 at the lower end the cover 70 is closed with an electrically conductive cap 72, which cap has a cup shape with an L-shaped cross section has flanged edge 73 with which it the lower Encloses the end of the sheath 70. There is an electric on the cap 72 Conductor connected, for example a conductor 41 the upper end of the PTC material ends at a distance from the upper End of the sheath 70, which there is the same as the cap 72 Cap 74 is complete.
- a conductor rod 76 On the top end of the PTC material there is an electrically conductive layer 75 on the a conductor rod 76 is connected which is an electromagnetic system 77 reaches through.
- the upper end of the conductor track 76 is with the cap 74 electrically connected.
- a switching mechanism 78 with a trigger lever 79 Inside the free Space between the cover 75 and the cap 74 is a switching mechanism 78 with a trigger lever 79, which with a Pawl projection 80 cooperates on a pin 81. If the electromagnet system responds with a magnet armature 82 within the switching mechanism 78, the trigger lever 79 clockwise pivoted and under the pressure of no closer shown spring is after the release of the latch 80 of the Pin 81 moves in the direction of arrow A, whereby as in the arrangement 5, the operating mechanism 18 is operated to to open the switch. The actuation mechanism is then not necessarily trained as a switch lock.
- FIG. 7 shows a similar shape.
- a shell 85 made of electrically insulating material, which according to closed at the bottom and top by a cap 86 and 87 the PTC material is 88.
- the PTC material has a central opening 89 which surrounds a conductor element 90, which connects the PTC resistor 88 to one in the drawing slightly higher than the upper end.
- a Plate 89a screwed to the conductor element 90, which also with the PTC material 88 is in electrically conductive connection.
- the contact element 91 has two contact legs 93 and 94, in which the pin 92 engages.
- the pin 92 is on a rotating part 95 molded, which inside a sleeve 96 made of insulating Material attached to the end facing the conductor element 90 and is crimped into it; protrudes through an opening 97 the pin 92 out of the sleeve 96.
- the top end of the sleeve 96 is on a retracted shelf 98 of the pot base 99 of the cap 87 fixed with a flange 91a.
- the sleeve 96 telescopically engages an inner sleeve 100 made of metallic Material into it that is open to the bottom part of the sleeve 96 and completed in the area of the bottom part 99 of the cap 87 is. It ends at a distance from the rotating part 95 so as not to be electrical to have a conductive connection to the turned part.
- the one made of insulating material existing outer sleeve 96 has in the area of the flange 91a lateral openings (not shown) through which on the Inner sleeve molded contact springs (not shown) to the outside reach for the shelf 98 of the pot base 99.
- the inner sleeve 10 is a sliding element and encloses a compression spring 101, one of which End at the rotating part 95 and the other end at the supports the upper closed end of the inner sleeve 100.
- the Compression spring 101 is surrounded with insulating material, so that a Current flow through the compression spring 101 is prevented.
- a fuse wire 103 is provided between the upper end of the inner sleeve or a contact plate arranged there 102 and the rotating part 95.
- the fuse wire is not available.
- a lead screw 111 made of insulating material screwed down the top end of the PTC resistor 88 towers.
- the lead screw 111 is in the area of the upper one Cap 87 provided with a guide bottom 112, in which the lower end of an outer sleeve 113 is pressed, which in the Inside the guide 112 located inner end 114 a crimp having.
- One is supported on this flanging 114 Compression spring 115, the other end of which flanged on the inward supports the upper end 116 of an inner sleeve 117.
- this flanging 116 is the inner sleeve with a rod 118 firmly connected.
- This rod 118 extends through the guide area 112 up to the vicinity of the free end of the conductor piece 110, on which a spring element 119 is fastened, which has a U-shape with two legs 120 and 121, which on their free ends are bent approximately V-shaped inwards and thus form a constriction 122. This engages in this narrowing 122 mushroom-shaped inner end 123 of the rod 118 and is supported by the spring element 119 held against the pressure of the spring 115.
- the material from which the spring element 119 is made can either be a bimetallic or shape memory alloy consist.
- the casing 70 or 85 of the embodiments according to FIGS. 6 to 10 is made of insulating material.
- This insulating material can be varistor ceramic.
- the reason for using the varistor ceramic is from the above mentioned German patent application can be seen.
- 7 to 10 is an electrical conductive connection from lower cap 86 to PTC material 88 provided via a stranded wire 130; from the top of the PTC material up to cover cap 87 is another stranded wire 131 provided; some of the current is now flowing via the conductor element 90 and the fuse wire 103 or the conductor element 110 and the sleeve 111 or the spring element 119 and the rod 118 towards the cap 87.
- the inner sleeves can be used as a sliding element for actuating the Switching device or for unlatching one as a switch lock trained actuator.
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Thermistors And Varistors (AREA)
- Fuses (AREA)
Description
- Fig. 1
- eine Schaltungsanordnung eines Netzes mit eingesetzten, nicht linearen Widerständen,
- Fig. 2
- eine Schaltungsanordnung für nur einen Netzleiter,
- Fig. 3
- eine Anordnung eines nicht linearen Widerstandes,
- Fig. 4
- eine der Fig. 2 ähnliche Schaltungsanordnung mit einem nicht linearen Widerstand,
- Fig. 5
- eine Schaltungsanordnung mit nicht linearem Widerstand und einer Sicherung,
- Fig. 6
- eine Vorrichtung zur Betätigung einer Auslöseeinrichtung, mit integriertem, nicht linearen Widerstand,
- Fig. 7
- eine weitere Ausführungsform ähnlich der der Fig. 6,
- Fig. 8
- eine vergrößerte Darstellung eines Teilbereiches der Fig. 7,
- Fig. 9
- eine weitere Ausführungsform der Erfindung mit einem nicht linearem Widerstand und
- Fig. 10
- eine vergrößerte Darstellung eines Teilbereiches der Vorrichtung gemäß Fig. 9.
Claims (26)
- In wenigstens einem Netzleiter (R, S, T) eines elektrischen Mittel- oder Hochspannungsnetzes einsetzbare elektrische Schalteinrichtung, die bei Auftreten eines Kurzschlußstromes den wenigstens einen Netzleiter (R, S, T) unterbricht, wobei ein Schaltgerät (15, 16, 17) mit einem nicht linearen Widerstand (11, 12, 13), dessen Widerstandswert sich nicht linear mit steigendem Stromwert erhöht, vorzugsweise ein nicht linearer Widerstand mit positivem Temperaturkoeffizienten, in Reihe geschaltet ist, dadurch gekennzeichnet, daß das Schaltgerät (15, 16, 17) ein elektrischer Trenn- oder Lastschalter ist, daß parallel zum nicht linearen Widerstand (11, 12, 13) eine nicht lineare oder lineare spannungsabhängige Impedanz (11a, 12a, 13a), vorzugsweise ein Varistor, geschaltet ist, daß Mittel (23, 24, 25) zur Detektion der Änderung der Eigenschaften des nicht linearen Widerstandes (11, 12, 13) bei Stromänderung im Netzleiter (R, S, T) vorgesehen sind, welche Mittel (23, 24, 25) bei Auftreten des bestimmten Überstromes ein Signal erzeugen, das einer Betätigungseinrichtung (18) für die Schalteinrichtung zuführbar ist, und daß bei Auftreten des Signals die Betätigungeinrichtung (18) die Schalteinrichtung (15, 16, 17; 18) betätigt.
- Schalteinrichtung nach Anpruch 1, dadurch gekennzeichnet, daß die Mittel (31) die Spannungsänderung am nicht linearen Widerstand (30) detektieren.
- Schalteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Mittel (39, 40) die Änderung der geometrischen Abmessungen des nicht linearen Widerstandes (34) detektieren.
- Schalteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Mittel die Temperaturänderung des nicht linearen Widerstandes detektieren.
- Schalteinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Mittel (51) zur Detektierung der Spannungsänderung des nicht linearen Widerstandes (50) durch einen parallel dazu geschalteten Aktuator (53), vorzugsweise durch ein Piezoelement gebildet ist, dessen Änderung seiner Geometrie die Betätigungseinrichtung für die Schalteinrichtung (15, 16, 17) betätigt.
- Schalteinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß dem nicht linearen Widerstand ein Schaltmechanismus (78) mit einer Verklinkungsstelle (80) zugeordnet ist, mit dem bei Auftreten eines Überstromes und Entklinkung der Verklinkungsstelle (80) der Trenn- oder Lasttrennschalter (15, 16, 17) betätigbar ist.
- Schalteinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß dem Schaltmechanismus (78) ein Gleitelement (81) zugeordnet ist, das bei Entklinkung der Verklinkungsstelle (80) des Schaltmechanismus (78) eine Betätigungseinrichtung (18) für den Trenn- oder Lasttrennschalter betätigt.
- Schalteinrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß dem nicht linearen Widerstand (71) eine Auslöseeinrichtung (77) zugeordnet ist, die den Schaltmechanismus betätigt.
- Schalteinrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Auslöseeinrichtung ein elektromagnetischer Auslöser (77) mit einem Anker (82) ist, der die Verklinkungsstelle (80) des Schaltmechanismus betätigt.
- Schalteinrichtung nach einem der Ansprüche 8 und 9, dadurch gekennzeichnet, daß an einer Elektrode (75) des nicht linearen Widerstandes (71) ein Leiter (76) angeschlossen ist, der Teil des elektromagnetischen Auslösers (77) ist.
- Schalteinrichtung nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, daß der nicht lineare Widerstand (71) zusamnien mit dem Schaltmechanismus (78) und/oder dem Auslöser (77) und/oder dem Leiter (76) mittels einer Trägeranordnung (70) aus isolierendem Material gehalten ist.
- Schalteinrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die Trägeranordnung wenigstens eine Haltestange aus isolierendem Material aufweist, und der lineare Widerstand zusammen mit dem Schaltmechanismus und/oder dem Auslöser und/oder dem Leiter, eine Einheit bildet.
- Schalteinrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Haltestange den nicht linearen Widerstand mittig durchsetzt.
- Schalteinrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die Trägeranordnung als Gehäuse (85) oder Hülle ausgebildet ist, die wenigstens den nicht linearen Widerstand (88) umschließt.
- Schalteinrichtung nach Anspruch 14, dadurch gekennzeichnet, daß der Auslöser und/oder der Schaltmechanismus in einem freien Innenraum der Hülle (85) angeordnet sind.
- Schalteinrichtung nach Anspruch 15, dadurch gekennzeichnet, daß die Hülle (85) rohrförmig, vorzugsweise zylindrisch ist, und an ihren Enden Abdeckkappen (86, 87) aufweist, an denen eine elektrische Zu- oder Abführung (130, 131) angeschlossen ist, und daß der nicht lineare Widerstand (88) elektrisch leitend mit den Abdeckkappen (86, 87) verbunden ist.
- Schalteinrichtung nach einem der Ansprüche 11 bis 16, dadurch gekennzeichnet, daß das isolierende Material einen nicht linearen Widerstandswert aufweist, derart, daß bei Auftreten einer Überspannung der Widerstandswert abfällt.
- Schalteinrichtung nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, daß das isolierende Material aus Varistorkeramik ist.
- Schalteinrichtung nach einem der Ansprüche 7 bis 18, dadurch gekennzeichnet, daß das Gleitelement als Zapfen (118) ausgebildet ist und unter dem Druck einer Federanordnung (115) aus der Trägeranordnung, vorzugsweise der Hülle, herausspringt.
- Schalteinrichtung nach einem der Ansprüche 15 bis 19, dadurch gekennzeichnet, daß der nicht lineare Widerstand (88) die Hülle (85) lediglich teilweise ausfüllt und daß zwischen dem nicht linearen Widerstand (88) und dem benachbarten elektrisch leitenden freien Ende der Schaltmechanismus und/oder der Leiter und/oder das den Anker aufweisende Elektromagnetsystem untergebracht sind.
- Schalteinrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Schaltmechanismus mit einer Verriegelung durch ein Rastfederelement (122, 123) gebildet ist, welches das unter dem Druck der Federanordnung stehende, vorzugsweise als Zapfen ausgebildete Gleitelement (118) festhält und ihn beim Auftreten eines Überstromes freigibt.
- Schalteinrichtung nach Anspruch 16, dadurch gekennzeichnet, daß das Rastfederelement (119) eine U-Form aufweist mit Verengungen (122) seiner Schenkel (120, 121), die aus bei Temperatur bei seine Form änderndem Material (Thermobimetall oder Formgedächtnislegierung) bestehend, und daß die Verengungen hinter eine pilzartige Erweiterung am inneren Ende des Zapfens (118) greift und diesen so festhält.
- Schalteinrichtung nach einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, daß als Verriegelung ein Schmelzdraht (103) vorgesehen ist, der das Gleitelement (100) gegen den Druck einer Feder (101) festhält und bei Auftreten eines Überstromes durchschmilzt, so daß die Feder (101) das Gleitelement (100) nach außen herausdrückt.
- Schalteinrichtung nach Anspruch 23, dadurch gekennzeichnet, daß das Gleitelement (100) mit Druckfeder (101) und Schmelzdraht innerhalb einer Hülse (96) angeordnet ist, die an ihrem inneren Ende einen Kontaktvorsprung aufweist, der mit einem mit dem nicht linearen Widerstand elektrisch leitend verbundenen Gegenkontakt kontaktierbar ist.
- Schalteinrichtung nach Anspruch 23 und 24, dadurch gekennzeichnet, daß das Gleitelement von einer Innenhülse (100) gebildet ist, die nach außen hin abgeschlossen und nach innen hin offen und in der Hülse (96) geführt ist, und daß die Innenhülse (100) den Schmelzdraht (103) und die Druckfeder (101) umgibt.
- Schalteinrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß sich der nicht lineare Widerstand (90) in einem Hauptstrompfad und der Schmelzdraht (103) oder die U-förmige Feder (119) in einem parallel dazu verlaufenden Strompfad befinden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4340632A DE4340632A1 (de) | 1993-11-30 | 1993-11-30 | Elektrische Schalteinrichtung |
DE4340632 | 1993-11-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0655760A2 EP0655760A2 (de) | 1995-05-31 |
EP0655760A3 EP0655760A3 (de) | 1997-06-04 |
EP0655760B1 true EP0655760B1 (de) | 2000-01-05 |
Family
ID=6503704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94118458A Expired - Lifetime EP0655760B1 (de) | 1993-11-30 | 1994-11-24 | Elektrische Schalteinrichtung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0655760B1 (de) |
JP (1) | JPH087721A (de) |
CN (1) | CN1110000A (de) |
DE (2) | DE4340632A1 (de) |
DK (1) | DK0655760T3 (de) |
ES (1) | ES2143518T3 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19534442A1 (de) * | 1995-09-16 | 1997-03-27 | Abb Research Ltd | Überstromschutzvorrichtung |
DE19606597A1 (de) * | 1996-02-22 | 1997-08-28 | Abb Patent Gmbh | Mittel-oder Niederspannungsschaltanlage |
DE19702094B4 (de) * | 1997-01-22 | 2008-01-24 | Abb Research Ltd. | Leistungsschaltvorrichtung |
DE19833609A1 (de) | 1998-07-25 | 2000-01-27 | Abb Research Ltd | Elektrisches Bauteil mit einer Einschnürung in einem PTC-Polymerelement |
EP1061625A1 (de) | 1999-06-17 | 2000-12-20 | Abb Research Ltd. | Überwachungsschaltung für eine Strombegrenzungsvorrichtung |
EP1061626A1 (de) | 1999-06-17 | 2000-12-20 | Abb Research Ltd. | Vorrichtung zur Begrenzung des elektrischen Stroms |
DE19955217A1 (de) * | 1999-11-17 | 2001-05-23 | Abb Patent Gmbh | Lastschalter |
DE102005006953A1 (de) * | 2005-02-16 | 2006-08-17 | Abb Patent Gmbh | Schaltgerät mit PTC-Element |
KR101028291B1 (ko) * | 2008-09-01 | 2011-04-11 | 주식회사 엘지화학 | 배터리 팩과 부하 간의 스위치부 제어장치 및 방법, 그리고 상기 장치를 포함하는 배터리 팩 및 배터리 관리 장치 |
GB2471869B (en) * | 2009-07-15 | 2012-04-25 | Vishay Resistors Belgium Bvba | Thermal switch |
WO2015021010A1 (en) * | 2013-08-05 | 2015-02-12 | Faulkner Roger W | Commutating switch with blocking semiconductor |
DE102015218724A1 (de) | 2015-09-29 | 2017-03-30 | Siemens Aktiengesellschaft | Anordnung und Verfahren zum Auslösen einer Schaltbewegung eines Leistungsschalters |
FR3067870B1 (fr) * | 2017-06-16 | 2021-01-01 | Schneider Electric Ind Sas | Appareil de protection electrique comportant un dispositif limiteur de courant |
DE102020108880B4 (de) * | 2020-03-31 | 2024-05-08 | Infineon Technologies Ag | Sensorvorrichtungen mit Bypassstrompfad und zugehörige Herstellungsverfahren |
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DE764828C (de) * | 1937-12-31 | 1952-11-24 | Siemens Schuckertwerke A G | Einrichtung zum Unterbrechen oder Regeln von Wechselstroemen |
DE2835064A1 (de) * | 1978-08-08 | 1980-02-14 | Siemens Ag | Elektrischer leistungsschalter mit einem widerstand |
DE2928786A1 (de) * | 1979-07-17 | 1981-02-05 | Bbc Brown Boveri & Cie | Leitungsschutzschalter |
DE3338799A1 (de) * | 1983-10-26 | 1985-05-09 | Brown, Boveri & Cie Ag, 6800 Mannheim | Thermischer ausloeser |
US4616206A (en) * | 1984-09-07 | 1986-10-07 | Eaton Corporation | Circuit breaker and shunt trip apparatus combined within single pole device |
JPS61108182A (ja) * | 1984-11-01 | 1986-05-26 | Toshiba Corp | 積層形圧電素子装置とその使用方法 |
SU1411880A1 (ru) * | 1986-06-11 | 1988-07-23 | Государственный Макеевский Научно-Исследовательский Институт По Безопасности Работ В Горной Промышленности | Устройство дл проверки средств защиты трехфазной сети от перенапр жений |
US4967176A (en) * | 1988-07-15 | 1990-10-30 | Raychem Corporation | Assemblies of PTC circuit protection devices |
US5001446A (en) * | 1988-08-01 | 1991-03-19 | Matsushita Electric Works, Ltd. | Shape memory alloy and electric path protective device utilizing the alloy |
SE462250B (sv) * | 1988-10-13 | 1990-05-21 | Asea Brown Boveri | Anordning foer oeverstroemsskydd |
SE465524B (sv) * | 1990-02-08 | 1991-09-23 | Asea Brown Boveri | Anordning foer oeverlast- och kortslutningsskydd i elektriska anlaeggningar |
DE4021945C2 (de) * | 1990-07-10 | 1999-12-30 | Alstom Sachsenwerk Gmbh | Schaltvorrichtung zur Unterbrechung von Fehlerströmen |
FR2677485A1 (fr) * | 1991-06-07 | 1992-12-11 | Stopcircuit Sa | Appareil de coupure en charge pour circuit electrique. |
DE4120005A1 (de) * | 1991-06-18 | 1992-12-24 | Abb Patent Gmbh | Schutzschalter |
SE469250B (sv) * | 1991-10-07 | 1993-06-07 | Asea Brown Boveri | Anordning foer oeverlast- och kortslutningsskydd i elektriska anlaeggningar |
DE4143095C1 (en) * | 1991-12-27 | 1993-04-08 | Roederstein Spezialfabriken Fuer Bauelemente Der Elektronik Und Kondensatoren Der Starkstromtechnik Gmbh, 8300 Landshut, De | Electrical building block, for simplicity and reliability - comprises resistor in series with melt fuse and connection element forming protective wall section, fixed on substrate with silicone adhesive |
DE4206162A1 (de) * | 1992-02-28 | 1993-09-02 | Rainer Dipl Phys Berthold | Fernantrieb fuer schalter |
-
1993
- 1993-11-30 DE DE4340632A patent/DE4340632A1/de not_active Withdrawn
-
1994
- 1994-11-24 ES ES94118458T patent/ES2143518T3/es not_active Expired - Lifetime
- 1994-11-24 EP EP94118458A patent/EP0655760B1/de not_active Expired - Lifetime
- 1994-11-24 DE DE59409050T patent/DE59409050D1/de not_active Expired - Fee Related
- 1994-11-24 DK DK94118458T patent/DK0655760T3/da active
- 1994-11-29 CN CN94118865A patent/CN1110000A/zh active Pending
- 1994-11-30 JP JP6297683A patent/JPH087721A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CN1110000A (zh) | 1995-10-11 |
DE4340632A1 (de) | 1995-06-01 |
ES2143518T3 (es) | 2000-05-16 |
EP0655760A3 (de) | 1997-06-04 |
DE59409050D1 (de) | 2000-02-10 |
JPH087721A (ja) | 1996-01-12 |
EP0655760A2 (de) | 1995-05-31 |
DK0655760T3 (da) | 2000-05-29 |
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