EP2553705B1 - Sicherung und sicherungsschutzschalter - Google Patents

Sicherung und sicherungsschutzschalter Download PDF

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Publication number
EP2553705B1
EP2553705B1 EP11720135.0A EP11720135A EP2553705B1 EP 2553705 B1 EP2553705 B1 EP 2553705B1 EP 11720135 A EP11720135 A EP 11720135A EP 2553705 B1 EP2553705 B1 EP 2553705B1
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Prior art keywords
type
fuse
narrow
sections
minimum width
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EP11720135.0A
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English (en)
French (fr)
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EP2553705B2 (de
EP2553705B8 (de
EP2553705A1 (de
Inventor
Pierre Lavaud
Thierry Rambaud
Daniel Bourlier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SIBA GmbH
Mersen France SB SAS
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Mersen France SB SAS
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H01H85/08—Fusible members characterised by the shape or form of the fusible member
    • H01H85/10—Fusible members characterised by the shape or form of the fusible member with constriction for localised fusing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/042—General constructions or structure of high voltage fuses, i.e. above 1000 V
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
    • H01H85/045—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type
    • H01H85/0458—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type with ferrule type end contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact

Definitions

  • the present invention relates to a fuse comprising an insulating bar and at least one fuse blade wound on this bar.
  • the invention also relates to a combined switch comprising at least one such fuse.
  • the field of the invention is that of high voltage fuses fitted to the combined switches.
  • the invention relates to a high voltage fuse for protecting cables and MV / LV distribution transformers (medium voltage / low voltage).
  • the fuse can provide this protection alone, or by being associated with a combined switch.
  • it is equipped with a striker which causes the automatic opening of the switch following the operation of the fuse.
  • the combination of the two devices, fuse and switch is characterized by a transition current, for which they exchange the breaking function: above this value, the current is interrupted only by the fuses, below it is interrupted on a phase by the first fuse that melts, and by the switch on the other two phases.
  • the fuse must have a fast response, cutting off when the current increases beyond a predetermined value.
  • the fuse is cut by melting fusible elements, the faster the overcurrent is important.
  • An essential component of the fuse is therefore the fuse element, which conventionally is wound on an insulating bar disposed in the body of the fuse.
  • the fuse element undergoes a rise in temperature proportional to the intensity of the current flowing through it.
  • the temperature of the fuse element In normal operation, the temperature of the fuse element is below its melting temperature and the current flows normally. In case of overcurrent, the temperature of the fuse element exceeds the melting temperature at one or more points of the fuse element, which melts at least partially, and the flow of current is cut off.
  • US-2007/0159291 describes a fuse, with one or more fusible elements arranged on an insulating central bar.
  • Each fuse element includes a main portion and a plurality of reduced sections arranged in series along its entire length. These reduced sections offer greater resistance than the main portions at the passage of the current, their temperature therefore increases until melting when the intensity of the current reaches a sufficient value.
  • the response of the fuse is not always satisfactory at certain critical intensities, for which the cut-off time is too slow.
  • GB-A-2 184 301 discloses a fuse comprising a fuse element. On this element are delimited, on the one hand, a running part provided with several reduced sections of a first type and, on the other hand, an end portion provided with one or more reduced sections of a second type. The response of this fuse is not fast enough to be effective, especially for so-called "intermediate" intensities, corresponding to a melting time of between 10 milliseconds and 1 second.
  • the object of the present invention is to provide a fuse having a faster response, particularly for currents neighboring the transition current when associated with a switch.
  • the subject of the invention is a fuse comprising a tubular body, at least one insulating bar arranged in the tubular body along a longitudinal axis of the tubular body, and at least one fusible blade of constant thickness, arranged on the bar and extending between the longitudinal ends of the fuse, the blade including segments of maximum width and a plurality of reduced sections arranged along its longitudinal direction, each reduced section having a geometry defined by its minimum width and length, wherein the sections are at least two different types and comprise at least one reduced section of a first type, which has a first minimum width, and at least one reduced section of a second type, which has a second minimum width different from the first minimum width.
  • This fuse is characterized in that the reduced sections are regularly spaced along the fuse link, with an alternation of reduced sections of the first type and reduced sections of the second type.
  • a fuse element comprising reduced section areas of different types, having different minimum widths, and arranged alternately in its longitudinal direction, makes it possible to produce a fuse having an improved, fast response regardless of the intensity for which the fuse needs to be cut.
  • the response of the fuse is notably improved for so-called intermediate fault intensities, for which the cut-off time is between 10 milliseconds and 1 second.
  • the invention also relates to a combined switch comprising at least one fuse as mentioned above.
  • FIG. 1 On the Figures 1, 2 and 3 is represented a fuse 1 according to the invention.
  • the figure 1 is an overview of the fuse 1.
  • the figures 2 and 3 show the fuse 1, respectively in cross-section and in longitudinal section.
  • the fuse 1 comprises a substantially tubular fuse body 2 defining a longitudinal axis X-X '.
  • the body 2 is made of insulating material, preferably porcelain.
  • a capsule 3a or 3b adapted to conduct the electric current, and preferably made of metal.
  • One of the capsules 3a or 3b may include a striker assembly 9 provided with a spring 91.
  • a central bar 4 which extends between the two ends 1a and 1b of the fuse, parallel to the axis X-X '.
  • the bar 4 is made of insulating material, preferably ceramic. As visible on the figure 2 , the bar 4 has a star-shaped cross section with six branches. When the bar 4 is positioned inside the body 2, its central and longitudinal axis X4 coincides with the axis X-X '.
  • the intermediate volume 8 between the bar 4 and the body 2 of the fuse 1 is filled with sand, not shown.
  • the fuse 1 may comprise two concentric bars arranged in the body 2.
  • each capsule 3a and 3b and the bar 4 is positioned an electrically conductive contact piece, respectively 6a and 6b, preferably made of metallic material.
  • the contact parts 6a and 6b each comprise six lugs 61a and 61b, which extend radially towards the body 2 and connect the fuse elements.
  • the contact pieces 6a and 6b also comprise positioning elements 62a and 62b, which allow correct alignment with the bar 4, and electrical contact tabs 63a and 63b.
  • Each contact piece 6a and 6b is connected to the bar 4 by a fastener 71a and 71b, respectively.
  • the bar 4 comprises a central through hole 41 of substantially circular shape, in which is housed a spiral fuse wire 22, also called striker wire.
  • a spiral fuse wire 22 also called striker wire.
  • the striker wire 22 is connected to the striker assembly 9 by a metal tube 23 which comprises in particular crimping zones for holding the striker wire 22.
  • the striker wire 22 is connected to one of the contact tabs 63b.
  • a conductive fuse element 110 is spirally wound around the bar 4, between the two contact pieces 6a and 6b.
  • the fuse element 110 is a fuse link, silver (Ag).
  • Ag silver
  • the ends of the blade 110 are connected to the lugs 61a and 61b of the contact pieces 6a and 6b, which are themselves connected to the respective capsules 3a and 3b.
  • the connections between conductive parts are made by welding, or any other known means.
  • the fuse blade has a thickness e110 constant, this thickness being measured perpendicularly to the plane of Figures 4 to 6 , that is to say in a radial direction relative to the axis XX 'in the wound configuration of the blade 110 on the bar 4.
  • X110 is a longitudinal axis of the blade 110, this axis being straight in the configuration of the Figures 4 to 6 and spiral in the configuration of the figure 3 .
  • the blade 110 has a maximum width l110, measured perpendicular to its thickness e110 and the axis X110, at several segments 111 distributed along the length of the blade 110. The segments 111 are separated by reduced sections 112 and 113 of two different types.
  • the reduced sections 112 and 113 are evenly spaced along the blade 110 along its longitudinal axis X110. More precisely, as shown in figure 4 the reduced sections 112 and 113 are alternately distributed along the blade 110 and are disjoint, i.e. do not overlap.
  • each section 112 of the first type has two recesses 112a and 112b whose edge is in an arc, opposite symmetrically with respect to the axis X110.
  • each section 113 of the second type has two recesses 113a and 113b, each of substantially rectangular shape, symmetrically opposite to the axis X110.
  • a length of a portion of the fuse blade is measured parallel to its longitudinal axis.
  • the recesses 113a and 113b have a length L113 greater than the length L112 of the recesses 112a and 112b.
  • the minimum width l113 of the band 110 at a reduced section 113 of the second type is greater than the minimum width l112 at a reduced section 112 of the first type. More precisely, the ratio of these widths l 113 l 112 is between 1.1 and 1.4.
  • the reduced sections 112 of the first type are more numerous than the reduced sections 113 of the second type.
  • the blade 110 comprises a succession of eight sections 112, then a section 113, and so on alternately along the blade 110. Between the reduced sections 112 and 113, there are segments 111 of maximum width l110.
  • the blade 110 may comprise a succession of six, seven or nine sections 112 between two sections 113, and so on alternately along the blade 110.
  • the blade 110 does not comprise a first elongate portion provided with sections 112 and a second elongated portion provided with sections 113, without alternation between the reduced sections of different types, as is the case in GB-A-2 184 301 .
  • FIG. 7 On the Figures 7, 8, 9 and 10 is shown a second embodiment of a fuse blade 210 which can equip a fuse according to the invention.
  • Fusible blade 210 has a constant thickness, this thickness being measured perpendicularly to the plane of Figures 7 to 10 , that is to say in a direction radial with respect to the axis XX 'in wound configuration of the blade 210 on the bar 4.
  • X210 is a longitudinal axis of the blade 210, this axis being rectilinear in the configuration of the Figures 7 to 10 and spiral in a configuration similar to that of the figure 3 .
  • the blade 210 has a maximum width l210, measured perpendicular to its thickness and to the axis X210, at several segments 211 distributed along the length of the blade 210.
  • the segments 211 are separated by reduced sections 212, 213 and 214 of three different types, which are evenly spaced along the blade 210 along its longitudinal axis X210. More precisely, as shown in figure 7 the reduced sections 212, 213 and 214 are alternately distributed along the blade 210 and are disjointed, i.e., do not overlap.
  • each section 212 of the first type has two recesses 212a and 212b whose edge is in an arc, opposite symmetrically with respect to the axis X210.
  • each section 213 of the second type has two recesses 213a and 213b, each of substantially rectangular shape, symmetrically opposite to the axis X210.
  • each section 214 of the third type has two recesses 214a and 214b, each of substantially rectangular shape, symmetrically opposite with respect to the axis X210.
  • the recesses 213a and 213b have a length L213 greater than the length L212 of the recesses 212a and 212b.
  • the minimum width l213 of the web 210 at a reduced section 213 of the second type is greater than the minimum width l212 at a reduced section 212 of the first type.
  • the recesses 214a and 214b have a length L214 greater than the length L213 of the recesses 213a and 213b of a reduced section 213 of the second type.
  • the minimum width l214 of the web 210 at a reduced section 214 of the third type is greater than or equal to the minimum width l213 at a reduced section 213 of the second type.
  • the ratios of the minimum widths l 213 l 212 and l 214 l 212 are between 1.1 and 1.4.
  • the report l 214 l 213 is between 1 and 1.4.
  • the reduced sections 212 of the first type are more numerous than the reduced sections 213 of the second type, and the reduced sections 213 of the second type are themselves more numerous than the reduced sections 214 of the third type.
  • the blade 210 comprises a succession of seven sections 212, then a section 213, and so on.
  • a section 213 of seven is replaced by a section 214.
  • the segments 211 of maximum width l110 there are the segments 211 of maximum width l110.
  • the blade 210 may comprise a succession of six, eight or nine sections 212 between two sections 213 or 214, and so on alternately along the blade 210.
  • the temperature of the fuse elements increases by Joule effect, up to a value at which it stabilizes.
  • this Joule effect creates a temperature increase that varies in different points of the 110 or 210 fuse blade.
  • the particular configuration of a fuse blade 110 or 210 according to the invention makes it possible to favor certain melting zones, since the reduced sections 112, 113, 212, 213 and 214 dissipate heat less than the segments 111 and 211.
  • the geometry of the reduced sections influences their heat exchange with the nearby environment.
  • the different sections of the same type, having identical heat exchanges melt substantially at the same time at different points of the fuse blade, this time required for the melting depending on the overcurrent flowing in the fuse blade and causes its heating.
  • an arcuate recess dissipates heat better than a recess of rectangular shape because the section includes more material.
  • the minimum width of the reduced section is a predominant parameter in front of the shape of the recess, because the section melts at its center first, and not homogeneously.
  • a blade according to the first embodiment is simpler to manufacture because it requires a number of machining and / or reduced forming operations for only two different types of reduced sections, while a blade according to the second embodiment comprises three different types of reduced sections but allows to obtain a different response curve.
  • the blade may comprise more than three different types of reduced sections, although this makes it more complex to manufacture.
  • the geometries, minimum widths, lengths and shape of the recesses of the different types of reduced sections may vary.
  • the reduced sections of the third type have a greater width and a greater length than the reduced sections of the second type.
  • the reduced sections of the third type may have the same minimum width.
  • a recess can be triangular, elliptical, crenellated, or any other geometry.
  • FIG 11 On the figure 11 is represented a graph illustrating the operation of the fuse 1 equipped with the fuse blade 110.
  • This fuse 1 is in accordance with the first embodiment described above in connection with the Figures 1 to 6 .
  • the graph of the figure 11 shows the cut-off time "t” in seconds (s), represented on the ordinates, as a function of the intensity "l” of the fault current in amperes (A), represented on the abscissa, according to a logarithmic scale.
  • Curve C1 in solid line corresponds to the behavior of a fuse equipped with a blade having only reduced sections of the first type, similar to 112, regularly spaced along this blade.
  • Curve C2 in dashed lines corresponds to the behavior of fuse 1 equipped with a blade 110, comprising alternately eight reduced sections of the first type 112 and a reduced section of the second type 113, and so on alternately along the blade 110 .
  • the fuse 1 breaking time according to the invention is reduced for so-called "intermediate" intensities, corresponding to a melting time of between 10 milliseconds and 1 second, without changing or very little fuse 1 response for the low intensities, corresponding to a melting time greater than or close to 10 seconds.
  • the cut-off time corresponds to the fusion of the reduced sections of a specific type as a function of the intensity of the fault current.

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  • Fuses (AREA)

Claims (15)

  1. Sicherung (1), Folgendes aufweisend:
    - einen rohrförmigen Körper (2),
    - mindestens einen isolierenden Stab (4), der im rohrförmigen Körper entlang einer Längsachse (X-X') des rohrförmigen Körpers angeordnet ist,
    - mindestens einen Sicherungseinsatz (110; 210) mit konstanter Dicke (e110), der auf dem Stab (4) angeordnet ist und sich zwischen Längsenden (1a, 1b) der Sicherung (1) erstreckt, wobei der Einsatz (110; 210) Segmente (111; 211) mit maximaler Breite (l110; l210) und mehrere reduzierte Abschnitte (112, 113; 212, 213, 214) aufweist, die entlang seiner Längsrichtung angeordnet sind, wobei jeder reduzierte Abschnitt eine Geometrie hat, die durch seine Mindestbreite (1112, 1113; 1212, l213, l214) und seine Länge (L112, L113; L212, L213, L214) bestimmt ist,
    wobei die reduzierten Abschnitte (112, 113; 212, 213, 214) von mindestens zwei verschiedenen Arten sind und aufweisen:
    - mindestens einen reduzierten Abschnitt einer ersten Art (112; 212), der eine erste Mindestbreite (1112; l212) aufweist, und
    - mindestens einen reduzierten Abschnitt einer zweiten Art (113; 213), der eine zweite Mindestbreite (1113; l213) aufweist, die sich von der ersten Mindestbreite unterscheidet,
    dadurch gekennzeichnet, dass die reduzierten Abschnitte (112, 113; 212, 213, 214) entlang dem Sicherungseinsatz (110; 210) mit einer Wechselfolge der reduzierten Abschnitte der ersten Art (112; 212) und der reduzierten Abschnitte der zweiten Art (113; 213) regelmäßig beabstandet sind.
  2. Sicherung nach Anspruch 1, dadurch gekennzeichnet, dass der Einsatz (110; 210) eine Wechselfolge von mehreren reduzierten Abschnitten der ersten Art (112; 212) zwischen zwei reduzierten Abschnitten der zweiten Art (113; 213) aufweist.
  3. Sicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Einsatz (110; 210) eine Aufeinanderfolge von sechs bis neun reduzierten Abschnitten der ersten Art (112; 212), dann einen reduzierten Abschnitt der zweiten Art (113; 213) und so weiter in Wechselfolge entlang des Einsatzes (110; 210) aufweist.
  4. Sicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Einsatz (110; 210) eine Aufeinanderfolge von sieben oder acht reduzierten Abschnitten der ersten Art (112; 212), dann einen reduzierten Abschnitt der zweiten Art (113; 213) und so weiter in Wechselfolge entlang des Einsatzes (110; 210) aufweist.
  5. Sicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mindestbreite (1112; l212) eines reduzierten Abschnitts der ersten Art (112; 212) kleiner ist als die Mindestbreite (1113; 1213) eines reduzierten Abschnitts der zweiten Art (113; 213), wobei das Verhältnis der zweiten Mindestbreite zur ersten Mindestbreite l ⁢ 113 l ⁢ 112 l ⁢ 213 l ⁢ 212
    Figure imgb0008
     zwischen 1,1 und 1,4 beträgt.
  6. Sicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jeder reduzierte Abschnitt der ersten Art (112; 212) mindestens eine Ausnehmung (112a, 112b; 212a, 212b) hat, deren Rand kreisbogenförmig ist.
  7. Sicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jeder reduzierte Abschnitt der zweiten Art (113; 213) mindestens eine Ausnehmung (113a, 113b; 213a, 213b) mit im Wesentlichen rechteckiger Form hat.
  8. Sicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Länge (L112; L212) eines reduzierten Abschnitts der ersten Art (112; 212) kleiner ist als die Länge (L113; L213) eines reduzierten Abschnitts der zweiten Art (113; 213).
  9. Sicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Einsatz (210) mindestens einen reduzierten Abschnitt einer dritten Art (214) aufweist, der eine dritte Mindestbreite (l214) hat, die sich von denjenigen (1212, 1213) der reduzierten Abschnitte der ersten und zweiten Art (212, 213) unterscheidet, wobei das Verhältnis der dritten Mindestbreite zur ersten Mindestbreite l ⁢ 214 l ⁢ 212
    Figure imgb0009
     zwischen 1,1 und 1,4 beträgt.
  10. Sicherung nach Anspruch 9, dadurch gekennzeichnet, dass der reduzierte Abschnitt der dritten Art (214) mindestens eine Ausnehmung (214a, 214b) mit im Wesentlichen rechteckiger Form hat.
  11. Sicherung nach einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, dass die Mindestbreite (l213) eines reduzierten Abschnitts der zweiten Art (213) kleiner als die oder gleich der Mindestbreite (l214) eines reduzierten Abschnitts der dritten Art (214) ist, und die Länge (L213) eines reduzierten Abschnitts der zweiten Art (213) kleiner als die oder gleich der Länge (L214) eines reduzierten Abschnitts der dritten Art (214) ist, wobei die Längen (L213, L214) in dem Fall nicht gleich sein können, in dem die Breiten (l213, l214) gleich sind, wobei das Verhältnis der dritten Mindestbreite zur zweiten Mindestbreite l ⁢ 214 l ⁢ 213
    Figure imgb0010
     zwischen 1,1 und 1,4 beträgt.
  12. Sicherung nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, dass der Einsatz (110; 210) eine größere Anzahl an reduzierten Abschnitten der ersten Art (112; 212) als an reduzierten Abschnitten der zweiten Art (113; 213) und gegebenenfalls eine größere Anzahl an reduzierten Abschnitten der zweiten Art (213) als an reduzierten Abschnitten der dritten Art (214) aufweist.
  13. Sicherung nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass der Einsatz (110; 210) eine Aufeinanderfolge von sieben oder acht reduzierten Abschnitten der ersten Art (112; 212), dann einen reduzierten Abschnitt der zweiten Art (113; 213) und so weiter in Wechselfolge entlang des Einsatzes (110; 210) aufweist, und dass ein reduzierter Abschnitt der zweiten Art (113; 213) von sieben durch einen reduzierten Abschnitt der dritten Art (214) ersetzt ist.
  14. Sicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die reduzierten Abschnitte der ersten Art und die reduzierten Abschnitte der zweiten Art und gegebenenfalls die reduzierten Abschnitte der dritten Art getrennt sind.
  15. Kombischalter, dadurch gekennzeichnet, dass er mindestens eine Schmelzsicherung (1) nach einem der vorhergehenden Ansprüche umfasst.
EP11720135.0A 2010-03-29 2011-03-28 Sicherung und sicherungsschutzschalter Active EP2553705B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1052294A FR2958073B1 (fr) 2010-03-29 2010-03-29 Fusible et interrupteur combine comprenant un tel fusible
PCT/FR2011/050667 WO2011124817A1 (fr) 2010-03-29 2011-03-28 Fusible et interrupteur combiné comprenant un tel fusible

Publications (4)

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EP2553705A1 EP2553705A1 (de) 2013-02-06
EP2553705B1 true EP2553705B1 (de) 2015-05-13
EP2553705B8 EP2553705B8 (de) 2015-07-01
EP2553705B2 EP2553705B2 (de) 2018-07-18

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Country Status (8)

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EP (1) EP2553705B2 (de)
CN (1) CN102893364B (de)
BR (1) BR112012024607A2 (de)
ES (1) ES2540112T5 (de)
FR (1) FR2958073B1 (de)
HU (1) HUE025641T2 (de)
MX (1) MX2012011342A (de)
WO (1) WO2011124817A1 (de)

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Publication number Priority date Publication date Assignee Title
CN103346048A (zh) * 2013-06-24 2013-10-09 安徽金力电气技术有限公司 一种脉冲脱离器
PL3021344T3 (pl) * 2014-11-12 2020-02-28 Abb Schweiz Ag Wkładka bezpiecznikowa
CN104362056A (zh) * 2014-11-25 2015-02-18 辽宁华隆电力科技有限公司 一种含绝缘隔板的跌落式熔断器熔丝装置
DE102018009183A1 (de) * 2018-11-23 2020-05-28 Siba Fuses Gmbh Verwendung einer Sicherung für eine Gleichstromübertragung
DE102019005664A1 (de) * 2019-06-25 2020-12-31 Siba Fuses Gmbh Schmelzleiter sowie Sicherung

Citations (9)

* Cited by examiner, † Cited by third party
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GB1326535A (en) 1969-09-23 1973-08-15 English Electric Co Ltd Fuse element
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GB1326535A (en) 1969-09-23 1973-08-15 English Electric Co Ltd Fuse element
US3835431A (en) 1969-09-23 1974-09-10 English Electric Co Ltd Electrical fuse
PL150614B1 (pl) 1986-05-15 1990-06-30 Opik paskowy bezpiecznikowej wkładki topikowej niskiego napięcia
PL158286B1 (en) 1988-08-18 1992-08-31 Inst Elektrotechniki Fusible strip for highly rated fuse links
PL180533B1 (pl) 1995-06-07 2001-02-28 Fabryka Sprzetu Elektrotechnicznego "Polampultusk" Sa Wkładka bezpiecznikowa z topikiem paskowym
US5892427A (en) 1998-04-24 1999-04-06 Cooper Technologies Company Current limiting high voltage fuse
WO2003075298A1 (en) 2002-02-28 2003-09-12 Eti Elektroelement D.D. Fusible element of a fast fuse for low fault-current installation protection
US20070159291A1 (en) 2003-05-26 2007-07-12 Abb Sp.Zo. O. High-voltage thick-film high rupturing capacity substrate fuse
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CN102893364A (zh) 2013-01-23
EP2553705B2 (de) 2018-07-18
CN102893364B (zh) 2015-02-18
EP2553705B8 (de) 2015-07-01
FR2958073B1 (fr) 2012-09-28
BR112012024607A2 (pt) 2017-07-18
WO2011124817A1 (fr) 2011-10-13
FR2958073A1 (fr) 2011-09-30
ES2540112T3 (es) 2015-07-08
HUE025641T2 (en) 2016-04-28
ES2540112T5 (es) 2018-10-05
EP2553705A1 (de) 2013-02-06
MX2012011342A (es) 2013-03-07

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