EP1345247B2 - Ensemble de coupe-circuit à fusible - Google Patents

Ensemble de coupe-circuit à fusible Download PDF

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Publication number
EP1345247B2
EP1345247B2 EP03251452A EP03251452A EP1345247B2 EP 1345247 B2 EP1345247 B2 EP 1345247B2 EP 03251452 A EP03251452 A EP 03251452A EP 03251452 A EP03251452 A EP 03251452A EP 1345247 B2 EP1345247 B2 EP 1345247B2
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EP
European Patent Office
Prior art keywords
indicator
fuse
fuse assembly
assembly according
housing
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
Application number
EP03251452A
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German (de)
English (en)
Other versions
EP1345247B1 (fr
EP1345247A1 (fr
Inventor
David Laxton
Russell Brown
Gareth John Cooper
Mark William Gunn
Sheila Sharma
John William Michael Butters
Dean Christopher Bruce
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.)
Cooper Technologies Co
Original Assignee
Cooper Technologies Co
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Filing date
Publication date
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Application filed by Cooper Technologies Co filed Critical Cooper Technologies Co
Priority to SI200330802T priority Critical patent/SI1345247T2/sl
Publication of EP1345247A1 publication Critical patent/EP1345247A1/fr
Publication of EP1345247B1 publication Critical patent/EP1345247B1/fr
Application granted granted Critical
Publication of EP1345247B2 publication Critical patent/EP1345247B2/fr
Anticipated expiration legal-status Critical
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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
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements

Definitions

  • the present invention relates to a fuse assembly, particularly to a fuse assembly for use as a low-voltage high-breaking capacity fuse, commonly referred to in the art as a fuse link.
  • Low-voltage high-breaking fuse links are specified in International Standard IEC 60269-2-1, Section 1 and are commonly referred to in the art as "NH" fuses.
  • fuse links of the aforementioned kind have a housing, generally rectangular in shape, across the interior of which extends a main fuse element.
  • An indicator fuse element is arranged in parallel to the main fuse element and serves to control the position of an indicator assembly.
  • the indicator assembly is arranged to provide to an observer an indication of the state of the main fuse element, in particular to provide a clear indication of the fuse in the blown state.
  • German patent application no. DE 1 034 751 discloses a fuse assembly of the aforementioned general configuration.
  • An indicator assembly has an indicator element disposed at one end of the housing and has an indicator portion extending into a longitudinal channel formed in the housing wall.
  • the indicator fuse element retains the indicator element in a first position against the biasing action of a helical spring.
  • the helical spring is retained in an enlarged end portion of the channel in the housing wall and applies a force coaxial to the longitudinal axis of the indicator portion within the channel.
  • German Patent publication No. DE 32 03 211 A1 discloses a fuse assembly of the aforementioned general kind, having an indicator assembly comprising a single strip of sprung metal secured at one end to an end terminal of the fuse assembly, adjacent the end face of the fuse housing.
  • the strip is formed so as to have a permanent curve and is arranged such that, in its rest state, the free end of the strip is displaced from the end face.
  • the strip is held flat against the end face of the housing against its natural sprung bias by an indicator fuse element.
  • European Patent No. EP 0 044 997 discloses a fuse assembly of the aforementioned general kind having an indicator assembly activated by an indicator fuse element.
  • the indicator assembly consists essentially of a metal strip folded to form two arms.
  • the fold of the metal strip is formed such as to act as a spring, biasing the arms away from one another.
  • One arm is secured to one end face of the housing, with the second arm being held in contact with the first by the indicator fuse element. Melting of the indicator fuse element releases the second arm of the indicator, which moves away from the end of the housing in an arcuate motion about the fold spring. Displacement of the second arm in this manner indicates to the observer an operated fuse assembly.
  • German Utility Model DE 298 07 928 U1 A further modification to the indicator assemblies of EP 0 044 997 and DE 197 23 540 A1 is described and shown in German Utility Model DE 298 07 928 U1 .
  • the indicator assembly of DE 298 07 928 U1 employs a folded metal strip, as described above. However, the first arm is secured to the end face of the housing of the fuse assembly at just its end. Upon operation of the fuse assembly, both the first and second arms of the indicator strip move in an arcuate path away from the end face of the housing.
  • An indicator strip extending within a channel in the side of the housing provides a second indicator, as described above.
  • US4023133 discloses a fuse assembly comprising a blown fuse indicator including an indicating pin biased in a direction at right angles to the longitudinal axis of the fuse, the pin indicates the state of the fuse from a lateral face of the fuse assembly.
  • the arrangement of having the force biasing the indicator into the second position acting coaxially with the restraining force exerted by the indicator fuse element retaining the indicator element in the first position provides an improved operation of the indicator assembly.
  • it prevents the movable elements of indicator assembly from travelling in an arcuate path, upon operation of the fuse.
  • Such movement of the indicator assembly components can cause elements to become caught or trapped.
  • a portion of the indicator fuse element can become trapped as it is pulled out of the housing by the moving indicator to which it is attached. This can prevent a full and complete indication being given.
  • movement of the indicator elements in an arcuate pattern results in one or more components of the indicator assembly moving laterally with respect to the end face of the housing.
  • This lateral movement can also lead to portions of the indicator assembly becoming trapped or restricted in their movement.
  • lateral movement causes the indicator element extending within the channel in the side of the housing to be forced against the side of the channel. This can restrict the element from moving freely within the channel, in turn causing the indicator assembly to be held in an intermediate position between the first and second positions.
  • the arrangement of the present invention prevents a lateral displacement of the elements of the indicator assembly parallel to the end face of the fuse housing.
  • the fuse assembly of the present invention provides an improved indicator assembly, in terms of its speed and reliability. It has been found that by eliminating the presence of a moment of forces generated within the indicator assembly between the point of connection of the indicator fuse element with the indicator assembly and the axis of action of the biasing force, the problems associated with the action of the indicator assembly discussed above can be prevented.
  • the fuse assembly of the present invention comprises an indicator assembly providing an indication of the state of the fuse when viewed from two directions. More preferably, the indicator assembly provides an indication at both an end face of the housing and a side face of the housing.
  • the indicator assembly comprises a first indicator element, which, when in the first position, is flat against or substantially flush with an end face of the housing and, when in the second position, is displaced outwardly from the end face.
  • the indicator assembly of the invention comprises an indicator element extending along one side of the housing.
  • the indicator element extends along a channel or groove formed in or on the surface of the side of the housing. If the channel is enclosed, a window is provided, through which the position of the indicator element may be seen to determine the state of the fuse assembly.
  • a preferred embodiment of the fuse assembly of the present invention comprises an indicator assembly having both of the aforementioned indicator elements.
  • the indicator elements may be any suitable form and colour necessary in order to provide a clear indication to an observer. A most convenient arrangement is one in which each indicator element is prepared from a strip of metal.
  • the biasing element and the indicator fuse element are preferably arranged whereby the biasing force exerted by the biasing element is acting along the longitudinal axis of the indicator fuse element.
  • the biasing element may be any suitable means capable of biasing the indicator element into the second position, for example a spring.
  • a resilient material may be employed to provide the required biasing, or the inherent properties of the indicator element may be employed. If a resilient member is employed to provide the biasing means, this member may be held in tension or compression by the indicator fuse element. It is preferred that the resilient member is held in compression and provides its biasing force from a partially or wholly compressed state. The biasing force may also be provided by a portion of the indicator being held in an unnatural state, for example a naturally curved indicator being held flat or straight, or vice versa.
  • a first preferred embodiment of the fuse assembly of the present invention employs a helical spring arranged co-axially with the indicator fuse element, the coils of the spring extending around the indicator fuse element.
  • An alternative embodiment of the present invention employs a leaf spring arrangement to bias the indicator element into the second position.
  • a preferred leaf spring arrangement is one comprising two leaves extending on opposing sides of the indicator fuse element and acting between the indicator element and the housing.
  • a most suitable leaf spring arrangement is one in which the indicator element comprises a metal strip having opposing biasing leaves extending from one surface of the strip and bearing against a surface of the housing. The biasing leaves are disposed uniformly about the indicator fuse element.
  • the present invention provides a a fuse assembly, comprising:
  • the leaf spring elements are preferably unitary with the indicator element, a most suitable arrangement being one in which the indicator element and the leaf spring elements are each formed from a single strip of sprung metal.
  • the leaf spring elements extend in opposite directions towards each other.
  • an essential feature of the fuse assembly of the first aspect of the present invention is that the biasing force exerted by the biasing element acts along substantially the same line as the retaining force exerted by the indicator fuse element, especially along the longitudinal axis of the indicator fuse element.
  • the leaf spring elements are preferably arranged one on opposing sides of the indicator fuse element.
  • the indicator may be employed simply to provide a visual indication of the state of the fuse elements within the housing.
  • the biasing element may be used to urge the indicator into the second position and activate an electrical switch, for example a microswitch.
  • the switch may in turn be used to provide an indication to an observer, for example by means of a lamp on a control panel remote from the fuse assembly, or to initiate another function, for example sound an alarm, shut down an item of equipment, and the like.
  • a fuse assembly having a hollow, generally rectangular housing, generally indicated as 4.
  • the housing 4 comprises a housing body 6 constructed from an electrically non-conductive material, typically a ceramic, and having a side wall 8.
  • the hollow interior of the housing is filled with an inert filler, such as sand.
  • the housing 4 further comprises two end plates 10, 12, secured at end of the housing body 6 by screws 14.
  • An insulating gasket 16 extends between each end plate 10, 12 and the housing body 6.
  • a main fuse element 22, visible in Figure 3 extends between the terminals 18, 20 and is secured to each terminal in a manner that provides an electrically conductive path through the fuse assembly.
  • the shape and configuration of the main fuse element 22 is determined by the electrical current to be accommodated or the rating of the fuse assembly.
  • the appropriate form of the main fuse element 22 for a given duty is known in the art and readily determined by the person skilled in the art.
  • the fuse assembly 2 has an indicator assembly, generally indicated as 30.
  • An indicator fuse element 32 is connected at one end to the terminal 20 by means of connection plate 34.
  • the indicator fuse element 32 is arranged in parallel with the main fuse element 22.
  • the indicator fuse element 32 is typically a fuse wire, of such a gauge that melting of the main fuse element 22, as a result of excessive electrical current, will cause the virtual immediate melting of the indicator fuse element 32.
  • the state of the indicator fuse element 32 is used to control the indicator assembly 30, as will now be described in more detail, having reference to Figure 4 .
  • a channel 34 is provided in the housing 4, in the form of a bore extending longitudinally through the side wall 8.
  • a bore extending from the outer surface of the side wall 8 to the channel 34 provides a window 36, through which an observer may view a portion of the interior of the channel 34.
  • the indicator assembly 30, comprises a cylindrical indicator housing 38 having one closed end 40 and secured so as to extends inwards through a hole in the end plate 10, with the closed end 40 innermost.
  • the closed end 40 of the indicator housing 38 is provided with a hole 42 located at its center.
  • a helical coil spring 44 is located in the indicator housing 38. The end coil of the spring 44 is an interference fit within the indicator housing 38.
  • a retainer assembly 46 is held co-axially within the coils of the spring 44 and comprises a cylindrical retainer 48 having a closed end 50 arranged innermost within the spring 44 and a open end with a flange 52, against which the end coil of the spring 44 bears.
  • a hole 54 is provided centrally in the closed end 50 of the retainer 48.
  • a retainer plug 56 is an interference fit within the retainer 48.
  • the second end portion of the indicator fuse wire extends through holes 42 and 54 in the ends 40 and 50 of the indicator housing 38 and the retainer 48 respectively. The second end of the indicator fuse element is held firmly between the retainer plug 56 and the inside of the retainer 48.
  • An L-shaped indicator 60 is provided having a first, short indicator element 62 and a second, long indicator element 64.
  • the first indicator element 62 extends parallel to the surface of the end plate 10 across the open end of the indicator housing 38 and is secured to the retainer plug 56.
  • the second indicator element 64 extends perpendicular to the first indicator element 62 within the channel 34 in the side wall 8 of the housing body 4.
  • the second indicator element 64 is of a length sufficient to extend past the window 36.
  • the second indicator element extends along the outer surface of the side wall 8 of the housing.
  • a groove may be provided in the outer surface to accommodate the second indicator element.
  • a label with a hole may be affixed over the groove, to provide a window.
  • the fuse assembly 2 is installed with the main and indicator fuse elements 22, 32 intact and electrically conductive.
  • the spring 44 biases the indicator 60 into the second position (not shown), in which the first indicator element is displaced from the end plate 10 of the housing 4.
  • the indicator fuse element 32 retains the indicator assembly 30 in the first position, as shown in Figures 1 , 3 and 4 .
  • the indicator 60 is held with the spring 44 compressed and the first indicator element 62 against the end plate 10 by the indicator fuse element 32, acting against the biasing force of the spring 44.
  • Melting of the main and indicator fuse elements 22, 32 releases the retainer assembly 46 and the indicator 60, which, under the action of the spring 44 move to the second position.
  • Means prevent the indicator 30 from being expelled completely from the fuse assembly under the action of the biasing force of the spring 44 upon melting of the indicator fuse element 32.
  • the state of the fuse assembly 2 is indicated to an observer in two manners.
  • a first indication is provided by the position of the first indicator element 62 relative to the end plate 10 of the housing 4.
  • a second indication is provided through the window 36 in the side wall 8 of the housing.
  • the second indicator element 64 is visible through the window when in the first position (as shown), but is not visible through the window when in the second position.
  • the second indicator element 64 may be sufficiently long as to be visible through the window, when in both the first and second positions.
  • an indication of the state of the fuse assembly is given, for example, by a change in colour or shape of the indicator visible through the window.
  • FIG. 5 a second embodiment of the fuse assembly according to the first aspect of the present invention is shown. Elements common to the first and second embodiments are indicated using the same reference numerals. For a description of these features reference is made to the preceding disclosure relating to the first embodiment.
  • the fuse assembly shown in Figure 5 is similar to that of Figures 1 to 4 , in that it relies upon a helical spring 144 to bias the indicator 160 into the second position, as shown in Figure 5 .
  • the indicator fuse element 32 is retained at its first end by a plug 100 held in a hole in the end plat 12 of the housing 4 by an interference fit.
  • the indicator 160 comprises first and second indicator elements 162, 164.
  • the helical spring 144 is not retained in a recess within the housing 4, as is the case with the first embodiment. Rather, as shown in Figure 5 , the helical spring 144 bears on the surface of the end plate 10 and the first indicator element 162.
  • the second end portion of the indicator fuse element 32 extends through a second plug 102 in the end plate 10, through the center of the helical spring 144 and is secured to the first indicator element 162.
  • the second indicator element 164 is provided with a step 166 in its surface.
  • a taper 168 allows the second indicator element 164 to be inserted into the channel 34 in the side wall 8 of the housing 4. Once inserted, the step 166 abuts the gasket 16 and prevents complete removal of the second indicator element 164.
  • the fuse assembly of Figure 5 is shown with the indicator assembly 130 in the second position, that is indicating an operated or blown fuse. Operation of the fuse assembly of this embodiment is substantially as hereinbefore described with respect to the first embodiment.
  • FIG. 6 and 7 a third embodiment of the fuse assembly of the present invention is shown. Elements common to the first and third embodiments are indicated using the same reference numerals. For a description of these features, reference is made to the preceding disclosure relating to the first embodiment.
  • the embodiment shown in Figures 6 and 7 comprises an alternative indicator assembly 230.
  • the indicator assembly comprises an indicator 232 having a first indicator element 234 and a second indicator element 236.
  • the indicator is shown in detail in Figure 8 and comprises the first and second indicator elements 234, 236 arranged to form an L-shape.
  • the first indicator element 234 has first and second leaf spring elements 240 and 242 unitary with it and extending from one face.
  • Each leaf spring element 240, 242 is in the form of an arcuate leaf having a free end curved to form a foot.
  • the leaf spring elements 240, 242 extend from the same face of the first indicator element 234, but in opposite directions towards each other. As shown in Figure 7 , the two leaf spring elements 240, 242 are disposed equidistant on either side of the indicator fuse element 32.
  • the leaf spring elements have substantially the same length and radius of curvature. Being formed from a single member, this provides the leaf spring elements 240, 242 with the same biasing properties.
  • the leaf spring elements 240, 242 together bias the indicator 230 into the second position, as shown in Figure 7 .
  • the second end of the indicator fuse element 32 is secured to the first indicator element 234 at a point between the two leaf spring elements 240, 242, as shown in Figure 7 .
  • the fuse assembly 2 is installed with the indicator assembly 230 retained in the first position (not shown) by the indicator fuse element 32.
  • the indicator 232 In the first position, the indicator 232 is held with the first indicator portion retained close to or in contact with the end plate 10 of the housing 4.
  • the leaf springs 240, 242 are compressed, with their feet forced outwards from the indicator fuse element 32.
  • the indicator assembly 230 Upon melting of the main and indicator fuse elements 22 and 32, the indicator assembly 230 is freed to move, under the action of the leaf spring elements 240, 242, to move to the second position.
  • the indications regarding the state of the fuse assembly given to an observer are as described above with respect to the first embodiment
  • the fuse assembly shown in Figures 6 to 8 employs the indicator 232 in accordance with the first aspect of the present invention.
  • the use of leaf spring elements to bias the indicator into the second position has a more general application, such as a replacement for the biasing means of the prior art fuse assemblies discussed above.

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  • Fuses (AREA)

Claims (21)

  1. Ensemble de coupe-circuit à fusible comprenant :
    un boîtier (4) ;
    un élément formant fusible principal (22) ;
    un élément formant fusible indicateur (32) arrangé électriquement en parallèle avec l'élément de fusible principal (22) ; et
    un ensemble indicateur (30, 130, 230), l'ensemble indicateur comprenant un indicateur (60, 160, 232) qui peut se déplacer entre une première position et une deuxième position, des moyens de sollicitation (44, 144, 240, 242) qui sollicitent l'indicateur vers la deuxième position, l'indicateur étant retenu dans la première position par l'élément formant fusible indicateur agissant à l'encontre de l'action des moyens de sollicitation le long d'une ligne d'une force de retenue ; moyennant quoi une fusion de l'élément formant fusible indicateur libère l'indicateur pour un mouvement depuis la première position à la deuxième position, l'élément de sollicitation ayant pour fonction de fournir une force de sollicitation à l'encontre de l'élément formant fusible indicateur appliqué sensiblement le long de la ligne de la force de retenue lors du dit mouvement,
    l'indicateur comprenant un élément indicateur (64, 164, 236) qui se prolonge le long d'un côté du boîtier (4), dans lequel sa position peut être vue, fournissant ainsi une indication de l'état de l'ensemble de coupe-circuit à fusible au niveau d'une surface latérale du boîtier.
  2. Ensemble de coupe-circuit à fusible selon la revendication 1, dans lequel l'élément de sollicitation a pour fonction de fournir une force de sollicitation sensiblement co-axialement avec l'axe longitudinal de l'élément formant fusible indicateur.
  3. Ensemble de coupe-circuit à fusible selon l'une quelconque des revendications 1 ou 2, dans lequel l'élément de sollicitation comprend un élément résilient.
  4. Ensemble de coupe-circuit à fusible selon la revendication 3, dans lequel l'élément résilient est un ressort.
  5. Ensemble de coupe-circuit à fusible selon la revendication 4, dans lequel le ressort est un ressort hélicoïdal.
  6. Ensemble de coupe-circuit à fusible selon la revendication 5, dans lequel le ressort hélicoïdal est logé à l'intérieur d'un renfoncement (38) qui s'étend vers l'intérieur à partir de l'une des extrémités du boîtier.
  7. Ensemble de coupe-circuit à fusible selon l'une quelconque des revendications 5 ou 6, dans lequel un seul ressort hélicoïdal est prévu, dont les enroulements s'étendent autour de l'axe longitudinal de l'élément formant fusible indicateur.
  8. Ensemble de coupe-circuit à fusible selon la revendication 4, dans lequel le ressort comprend un ou plusieurs éléments de ressort à lamelles ;
  9. Ensemble de coupe-circuit à fusible selon la revendication 8, dans lequel le ressort comprend deux éléments de ressort à lamelles, chaque élément étant fixé au niveau d'une extrémité de l'indicateur et se prolongeant entre l'indicateur et le boîtier.
  10. Ensemble de coupe-circuit à fusible selon la revendication 9, dans lequel les deux éléments de ressort s'étendent dans des directions opposées.
  11. Ensemble de coupe-circuit à fusible selon la revendication 10, dans lequel les deux éléments de ressort s'étendent l'un vers l'autre.
  12. Ensemble de coupe-circuit à fusible selon l'une quelconque des revendications 9 à 11, dans lequel les deux éléments de ressort à lamelles sont espacés équidistants par rapport à, et sur des côtés opposés de, l'axe longitudinal de l'élément formant fusible indicateur.
  13. Ensemble de coupe-circuit à fusible selon l'une quelconque des revendications 8 à 12, dans lequel chaque élément de ressort à lamelles forme une seule pièce avec l'indicateur.
  14. Ensemble de coupe-circuit à fusible selon l'une quelconque des revendications précédentes, dans lequel l'élément indicateur s'étend le long d'un canal (34) ou d'une gorge formé(e) dans, ou sur, la surface d'un côté du boîtier.
  15. Ensemble de coupe-circuit à fusible selon la revendication 14, dans lequel le canal est fermé et une fenêtre est prévue à travers laquelle la position de l'élément indicateur peut être vue ce qui permet de déterminer l'état de l'ensemble de coupe-circuit à fusible.
  16. Ensemble de coupe-circuit à fusible selon l'une quelconque des revendications précédentes, dans lequel l'indicateur comprend deux éléments indicateurs (62, 162, 234, 64, 164, 236), chaque élément indicateur fournissant une indication distincte de l'état de l'ensemble de coupe-circuit à fusible.
  17. Ensemble de coupe-circuit à fusible selon la revendication 16, dans lequel les éléments indicateurs s'étendent perpendiculairement l'un à l'autre.
  18. Ensemble de coupe-circuit à fusible selon la revendication 17, dans lequel l'un des éléments indicateurs (62, 162, 234) fournit une indication au niveau de l'une des extrémités du boîtier.
  19. Ensemble de coupe-circuit à fusible selon l'une quelconque des revendications précédentes, dans lequel l'indicateur comporte un dispositif de retenue pour empêcher une éjection ou un retrait complet de l'indicateur hors de l'ensemble de coupe-circuit à fusible.
  20. Ensemble de coupe-circuit à fusible selon la revendication 19, dans lequel le dispositif de retenue présente un profil étagé sur une surface de l'indicateur, le profil étagé s'engageant avec un élément du boîtier de façon à limiter le mouvement de l'indicateur au mouvement entre la première et la deuxième positions.
  21. Ensemble de coupe-circuit à fusible selon l'une quelconque des revendications précédentes, dans lequel, quand l'indicateur est dans la deuxième position, au moins une portion de l'indicateur est déplacée par rapport à la surface du boîtier.
EP03251452A 2002-03-12 2003-03-11 Ensemble de coupe-circuit à fusible Expired - Lifetime EP1345247B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200330802T SI1345247T2 (sl) 2002-03-12 2003-03-11 Sklop talilne varovalke

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0205762.8A GB0205762D0 (en) 2002-03-12 2002-03-12 Fuse assembly
GB0205762 2002-03-12

Publications (3)

Publication Number Publication Date
EP1345247A1 EP1345247A1 (fr) 2003-09-17
EP1345247B1 EP1345247B1 (fr) 2007-02-21
EP1345247B2 true EP1345247B2 (fr) 2010-10-13

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EP03251452A Expired - Lifetime EP1345247B2 (fr) 2002-03-12 2003-03-11 Ensemble de coupe-circuit à fusible

Country Status (7)

Country Link
EP (1) EP1345247B2 (fr)
CN (1) CN1314065C (fr)
AT (1) ATE354862T1 (fr)
DE (1) DE60311905T2 (fr)
ES (1) ES2282572T5 (fr)
GB (1) GB0205762D0 (fr)
SI (1) SI1345247T2 (fr)

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EP1560245B1 (fr) * 2004-01-29 2013-09-18 Weber Ag Cartouche à fusible en particulier pour fusible de haute puissance basse tension
CZ299300B6 (cs) * 2004-11-10 2008-06-11 Oez S. R. O. Pojistková vložka elektrické tavné pojistky s duální indikací provozního stavu
DE102006034404B4 (de) * 2006-06-08 2014-05-28 Dehn + Söhne Gmbh + Co. Kg Überstromschutzeinrichtung für den Einsatz mit Überspannungsschutzgeräten, mit einem zusätzlichen als Schlagbolzen ausgeführten mechanischen Auslöser
HRP20100161A2 (hr) 2010-03-18 2011-09-30 Kopčić Nikola Indikator stanja rastalnice uloška niskonaponskih visokoučinskih osigurača
CN105788912A (zh) * 2014-12-18 2016-07-20 天津博久机电设备科技有限公司 一种刀熔开关背板
CN105788450B (zh) * 2016-05-24 2018-10-02 国家电网公司 一种输电线路接头过温警示装置
RU2649661C1 (ru) * 2017-06-29 2018-04-05 Общество с ограниченной ответственностью "СвердловЭлектро - Силовые трансформаторы" Предохранительное устройство
RU2685246C1 (ru) * 2018-08-02 2019-04-17 Общество с ограниченной ответственностью "СвердловЭлектро-Силовые трансформаторы" (ООО "СВЭЛ-Силовые трансформаторы) Предохранительное устройство
EA035099B1 (ru) * 2018-08-02 2020-04-27 Общество С Ограниченной Ответственностью "Свердловэлектро-Силовые Трансформаторы" (Ооо "Свэл-Силовые Трансформаторы") Предохранительное устройство
CN114121387B (zh) * 2021-11-29 2024-04-30 广东电网有限责任公司 一种可自动显示绝缘子绝缘击穿的装置

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GB580462A (en) † 1944-08-08 1946-09-09 English Electric Co Ltd Improvements in and relating to tripping or indicating devices for electric fuse links
DE902879C (de) † 1940-07-10 1954-01-28 Voigt & Haeffner Ag Geschlossene Schmelzsicherung
CH317661A (de) † 1952-08-21 1956-11-30 Rudolf Bogenschuetz Gmbh Schmelzsicherungseinsatz mit Kennmelder
US2794095A (en) † 1954-11-15 1957-05-28 Chase Shawmut Co Striker pin structures
DE1034751B (de) † 1956-09-29 1958-07-24 Voigt & Haeffner Ag Sicherungspatrone, insbesondere Niederspannungs-Hochleistungs-Sicherungspatrone mit einem den Zustand der Sicherung anzeigenden Kennmelder
FR1465397A (fr) † 1965-06-04 1967-01-13 Comp Generale Electricite Dispositif indicateur de fusion
DE1792662A1 (de) † 1967-10-05 1971-06-03 Gen Electric Mehrstufige Destillationskolonne fuer Salzwasser
US3601739A (en) † 1969-12-31 1971-08-24 Westinghouse Electric Corp Indicating means for fuses
US3678430A (en) † 1971-07-19 1972-07-18 Mc Graw Edison Co Protector for electric circuit
DE19644901A1 (de) † 1996-10-29 1998-04-30 Mueller Jean Ohg Elektrotech Sicherungseinsatz mit Meldeeinrichtung sowie Verfahren zur Herstellung eines Sicherungseinsatzes mit Meldeeinrichtung
DE29807928U1 (de) † 1997-06-05 1998-09-24 Lindner GmbH, 91330 Eggolsheim Elektrischer Sicherungseinsatz
DE19723540A1 (de) † 1997-06-05 1998-12-17 Lindner Gmbh Elektrischer Sicherungseinsatz
WO1999040599A1 (fr) † 1998-02-06 1999-08-12 Sicherungen-Bau Gmbh Cartouche fusible electrique et indicateur de fusion pour une telle cartouche
DE19831376A1 (de) † 1998-07-13 2000-01-20 Schneider Gmbh Annaberg M Schaltzustands-Anzeiger für Sicherungseinsätze
EP0917723B1 (fr) † 1996-08-08 2000-03-22 Siemens Aktiengesellschaft Liaison fusible
DE10005145A1 (de) † 1999-12-23 2001-07-19 Sicherungen Bau Gmbh Sicherungseinsatz, insbesondere NH-Sicherungseinsatz

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US4023133A (en) * 1976-03-15 1977-05-10 The Chase-Shawmut Company Blown fuse indicator
DE3034762A1 (de) * 1980-09-15 1982-03-25 Siemens AG, 1000 Berlin und 8000 München Sicherungseinsatz und verfahren zu seiner herstellung
CN86202939U (zh) * 1986-05-06 1987-07-15 李永卿 多功能熔断器
IT1231070B (it) * 1989-09-28 1991-11-12 Inver Srl Valvola a fusibile.
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Publication number Priority date Publication date Assignee Title
DE902879C (de) † 1940-07-10 1954-01-28 Voigt & Haeffner Ag Geschlossene Schmelzsicherung
GB580462A (en) † 1944-08-08 1946-09-09 English Electric Co Ltd Improvements in and relating to tripping or indicating devices for electric fuse links
CH317661A (de) † 1952-08-21 1956-11-30 Rudolf Bogenschuetz Gmbh Schmelzsicherungseinsatz mit Kennmelder
US2794095A (en) † 1954-11-15 1957-05-28 Chase Shawmut Co Striker pin structures
DE1034751B (de) † 1956-09-29 1958-07-24 Voigt & Haeffner Ag Sicherungspatrone, insbesondere Niederspannungs-Hochleistungs-Sicherungspatrone mit einem den Zustand der Sicherung anzeigenden Kennmelder
FR1465397A (fr) † 1965-06-04 1967-01-13 Comp Generale Electricite Dispositif indicateur de fusion
DE1792662A1 (de) † 1967-10-05 1971-06-03 Gen Electric Mehrstufige Destillationskolonne fuer Salzwasser
US3601739A (en) † 1969-12-31 1971-08-24 Westinghouse Electric Corp Indicating means for fuses
US3678430A (en) † 1971-07-19 1972-07-18 Mc Graw Edison Co Protector for electric circuit
EP0917723B1 (fr) † 1996-08-08 2000-03-22 Siemens Aktiengesellschaft Liaison fusible
DE19644901A1 (de) † 1996-10-29 1998-04-30 Mueller Jean Ohg Elektrotech Sicherungseinsatz mit Meldeeinrichtung sowie Verfahren zur Herstellung eines Sicherungseinsatzes mit Meldeeinrichtung
DE29807928U1 (de) † 1997-06-05 1998-09-24 Lindner GmbH, 91330 Eggolsheim Elektrischer Sicherungseinsatz
DE19723540A1 (de) † 1997-06-05 1998-12-17 Lindner Gmbh Elektrischer Sicherungseinsatz
WO1999040599A1 (fr) † 1998-02-06 1999-08-12 Sicherungen-Bau Gmbh Cartouche fusible electrique et indicateur de fusion pour une telle cartouche
DE19831376A1 (de) † 1998-07-13 2000-01-20 Schneider Gmbh Annaberg M Schaltzustands-Anzeiger für Sicherungseinsätze
DE10005145A1 (de) † 1999-12-23 2001-07-19 Sicherungen Bau Gmbh Sicherungseinsatz, insbesondere NH-Sicherungseinsatz

Also Published As

Publication number Publication date
DE60311905T2 (de) 2007-11-08
EP1345247B1 (fr) 2007-02-21
EP1345247A1 (fr) 2003-09-17
ES2282572T3 (es) 2007-10-16
ES2282572T5 (es) 2011-03-14
ATE354862T1 (de) 2007-03-15
CN1448976A (zh) 2003-10-15
SI1345247T2 (sl) 2011-02-28
DE60311905D1 (de) 2007-04-05
SI1345247T1 (sl) 2007-08-31
CN1314065C (zh) 2007-05-02
GB0205762D0 (en) 2002-04-24

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