WO2015001140A1 - Dispositivo de protección contra sobre intensidades en circuitos eléctricos y utilizaciones de dicho dispositivo en un eslabón fusible y en un fusible limitador asociado así como en fusibles para protección de semiconductores - Google Patents
Dispositivo de protección contra sobre intensidades en circuitos eléctricos y utilizaciones de dicho dispositivo en un eslabón fusible y en un fusible limitador asociado así como en fusibles para protección de semiconductores Download PDFInfo
- Publication number
- WO2015001140A1 WO2015001140A1 PCT/ES2013/070453 ES2013070453W WO2015001140A1 WO 2015001140 A1 WO2015001140 A1 WO 2015001140A1 ES 2013070453 W ES2013070453 W ES 2013070453W WO 2015001140 A1 WO2015001140 A1 WO 2015001140A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- current
- terminal
- fuse
- central
- input terminal
- Prior art date
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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
- H01H85/38—Means for extinguishing or suppressing arc
-
- 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
- H01H85/44—Structural association with a spark-gap arrester
-
- 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
-
- 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
- H01H85/165—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/525—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body with adaptable interconnections
- H01L23/5256—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body with adaptable interconnections comprising fuses, i.e. connections having their state changed from conductive to non-conductive
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
-
- 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
- H01H85/0241—Structural association of a fuse and another component or apparatus
- H01H2085/0283—Structural association with a semiconductor device
-
- 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
Definitions
- the present invention relates generally to a device for protection against overcurrents in electrical circuits, as well as to the use of said device in elements for protection of electrical circuits, such as fuse links, associated limiting fuses and fuses for semiconductor protection .
- the current impulses that circulate through the power lines are cataloged in international standards and are fundamentally of three types, lightning type, steep and maneuvering.
- the most important in terms of the sudden melting of the fuses are lightning current impulses that are caused by the discharge of a lightning rod after an atmospheric impulse. These pulses have a waveform of 8 / 20 ⁇ 5, that is, 8 ⁇ of rise and 20 ⁇ of descent to the semi-tail value.
- current amplitudes are concerned, they usually involve peak values of 5kA to 10kA in high voltage and 1 kA to 5kA in secondary low voltage installations.
- the varistors or the lightning rods are used, which derive the electrically induced energy to ground, so that a dangerous overvoltage level for the equipment is not reached.
- grounding occurs, a transient current is established that will pass through the entire circuit, so that if there is a fuse in the path of said transient current, it may melt.
- the first is to install the lightning rod upstream of the fuse, so that the current that can derive it does not pass through said fuse. This solution is in disuse and is not really used, because the protection range of the lightning rod decreases with distance. In other words, for an overvoltage protector to be effective, it must be located just at the terminals of the object to be protected, as close to it physically and electrically.
- fuses are also being installed inside the tank of a transformer, which normally presents the problem that if the fuse blows, the complete transformer must be replaced, based on the idea that if the fuse blows, it is that the Transformer is permanently damaged, which is not always correct.
- a widely used solution consists in using sufficiently high current fuses, so that they do not blow before current impulses.
- 50A fuses are used to protect transformers with a nominal current of 1.44A (50kVA to 20kV). Obviously, these fuses are not protecting the transformer at all and if they have to act by default of it, when they do it may already be totally and absolutely destroyed.
- the invention proposes as an objective the development of a protection device of the type indicated in a principle that is easy to manufacture and electrically robust.
- the invention starts from the idea that the reduced intrinsic self-induction of a conductive element connected between a current input and a current output, produces a high inductive voltage drop between said terminals when current inputs are present on current pulses This is due to the high value of the variation of the current over time, and to take advantage of the high voltage drop due to the presence of current impulses to produce, with the aid of the film effect, an arc of discharge through a third terminal, hereinafter central terminal, provided for that purpose between the input terminal and the output terminal, and whose central terminal is externally set to a potential similar to the potential of the output terminal, thus preventing the flow of current impulses to through the conductive element, said ones being derived on current pulses through said central terminal.
- the overcurrent protection device in electrical circuits is characterized according to the invention because it comprises:
- an insulating material tube is connected between the current input terminal and the non-impulsive current output terminal, inside which the conductive element connected between the input terminal and non-impulsive current output terminal.
- the electrode of the input terminal is provided with a neck portion and the electrode of the central terminal is also configured with a neck portion.
- the electrode of the central terminal is also configured with a neck portion. with a central hole in which an insulating sleeve is housed through which the conductive element passes and extending the respective neck portions within a space, delimited by the walls of a gas-tight coupled cylindrical piece between both electrodes that defines a controlled atmosphere discharge chamber for electric arc formation between the respective neck portions of the respective electrodes and the insulating tube extending between the lower end of the central terminal electrode and the non-impulsive current output terminal bushing.
- the insulating tube has a higher dielectric strength than the surrounding environment.
- the dielectric strength of the insulating tube can be adjusted by providing it with perforations, for example by removing wall portions of said tube in the part between the inlet and center terminals.
- the electrodes of the input and central terminals, or the neck-shaped portions of said electrodes are connected by a varistor or a capacitor. Additionally, it is possible to advantageously arrange a varistor or a capacitor connected to the central and input terminals with an orifice through which the conductive element runs.
- the conductive element is advantageously provided either as a rectilinear or coiled conductor wire, whose diameter, length and number of turns are chosen respectively depending on the nominal current of the fuse and the desired self-induction value for said conductive element, or providing said conductive element as a reactance itself.
- the generation of the discharge arc is facilitated by a magnetic repulsion effect when the insulating tube is constituted on the basis of flexible material, so that it can be arranged with a rolled-up configuration in the form of a section Toroidal
- Another additional object of the invention is the use of the protection device by connecting it to a fuse link in a circuit.
- This objective is achieved through the characteristics indicated in claims 10 and 1 1. Accordingly, it starts from a fuse link that has a plug cap; a link head connected to the plug cap; a first connection connected to the link head; a second connection connected through a fuse element with a third connection of a connection braid; a tensioning wire coupled between the second and third connection; and an auxiliary protection tube in which the link head, the first and second connections, the fuse element, the tension wire and a portion of the connection braid are encapsulated, and in which the overcurrent protection device is connected in said fusible link with its input terminal to the first connection of the fusible link, with its output terminal to the second connection of the fusible link and with its central terminal to the third connection of the fusible link through a conductive wire resistant to on intensities.
- Another use of the invention is also the use of the protection device connected to an associated limiting fuse of a circuit.
- This objective is achieved through the characteristics indicated in claims 12 and 13. Accordingly, it starts from an associated limiting fuse having respective first and second connection capsules; a fusible element arranged spirally around an insulating core that extends between the connecting capsules; a first contact portion connected to the first connection capsule and a second contact portion, separated from the first portion, connected to the fuse element; a third contact portion adjacent to the second contact portion and electrically isolated therefrom by means of an insulating portion and a fourth metal contact piece connected to the second connection capsule, where the overcurrent protection device is connected to said fuse link with its input terminal to the first contact portion, with its output terminal to the second contact portion and with its central terminal connected to the third contact portion through a conductor not intended to melt.
- a semiconductor protection fuse that includes first and second connection capsules; and a main fuse element extending between said first and second connection capsules, where the overcurrent protection device is connected to said protection fuse with its input terminal connected to the first connection capsule and with its output terminal connected to the main fuse element of the protection fuse and with its central terminal connected through a connecting wire, not intended to blow, with the main fuse element; and where appropriate a protective element such as a capacitor or a varistor is connected between its input terminal and its central terminal.
- Figure 1 shows a schematic view of a protection device according to the invention.
- Figure 2 also schematically illustrates a view of a variant embodiment of a device according to the invention.
- Figures 3 and 4 show respective schematic views of two respective embodiments of the device according to the invention.
- Figure 5 illustrates a longitudinal sectional view of a fusible link in which the protective device of the invention is used.
- Figure 6 shows a longitudinal sectional view of an associated limiting fuse in which a protective device according to the invention is used.
- Figures 7A and 7B illustrate respective longitudinal section views of a protection fuse for semiconductors in which a protection device according to the invention is used.
- the overcurrent protection device consists of a current input terminal (2); a central terminal (3) intended to output current over-pulses (Is) that may occur during operation; an output terminal (4) for output of non-impulsive current (le); as well as a conductive element (5) that connects said input and output terminals (2 and 4).
- the central terminal (3) is fixed in the vicinity of the input terminal (2) at a distance (D) that can be adjusted. Accordingly, prior to the presence of current in the input terminal (2), the central terminal (3) and the output terminal (4) are equipotential when connected externally.
- the conductive element (5) intrinsically has a reduced self-induction value (L).
- L self-induction value
- the central terminal (3) is fixedly arranged at a distance (D) in the vicinity of the current input terminal (2), when, due to an over-current impulse, the inductive voltage drop (AU ⁇ ) between the input terminal (2) and the non-impulsive current output terminal (4) exceeds the dielectric strength of the dielectric material present between the input and central terminals (2 and 3), a film is produced, with the help of the film effect, electric arc between said input terminal (2) and said central terminal (3), eliminating the flow of current over-pulses (ls) through the conductive element (5) that will then circulate through said central terminal (3) .
- a tube (6) of insulating material is extended, inside which the conductive element (5) connected between said input and output terminals (2 and 4).
- the input terminal (2) is connected to a disk-shaped electrode (20) that is coupled to one end of the insulating tube (6), the terminal being attached outlet (4) to a socket (40) disposed at the other end of said insulating tube, while the central terminal (3) is connected to or forms part of a ring-shaped electrode (30) fixed around the insulating tube (6).
- the operation of the device according to the invention through which the overcurrent impulses (Is) circulate between the input terminal (2) and the central terminal (3) while the non-impulsive current does so through the input and input terminals output (2 and 4), is based on the one part on the film effect or Kelvin effect by which the electric current tends to circulate on the surface of the conductor rather than the center, especially with high amplitude and frequency currents, as well as due to the high inductive voltage drop that occurs between the input terminal (2) and the output terminal
- the central terminal (3) is externally placed at the same point of electrical potential as the output terminal (4), so that when current appears and before the current impulses the voltage between the input and output terminals (2 and 4) is practically the same as the voltage between the input and central terminals (2 and 3).
- the electrode (20) of the input terminal (2) is provided with a neck portion (200) and the electrode (30) of the central terminal (3) also with a neck portion (300) provided with a central hole (3000) in which an insulating sleeve (7) is housed through which the conductive element (5) passes and the respective neck portions (200, 300) extending within a space (8) delimited by the walls of an insulating cylindrical piece (9), gas tightly coupled between both electrodes (20, 30), so that said space ( 8) defines a discharge chamber for control of the arc formation between the respective neck portions (200, 300) of the respective input and center terminals (2 and 3).
- the insulating tube (6) extends between the lower end of the electrode (30) of the central terminal (3) and the socket (40) of the non-impulsive current output terminal (4).
- the current input terminals (2 and 4) are provided protruding from the ends of the insulating tube (6).
- all terminals (2 and 3, 4) are finished in the form of a shovel or tube to which other conductors can be connected, by welding or crimp.
- the discharge arc between the input and central terminals (2 and 3) is formed externally to the tube (6), that is, through the external means surrounding said terminals
- the material of the insulating tube (6) has a higher dielectric strength than the surrounding environment.
- a varistor (VR1) with a central hole (O) is arranged through from which the conductive element (5) passes.
- This varistor has a markedly non-linear characteristic Vt (time voltage), which acts as an insulator up to a certain voltage value called “clamping voltage” that begins to conduct, in this way the varistor accurately derives the current of the input and output terminals (2 and 4) to the input and central terminals (2 and 3) since the "clamping voltage" is a very stable value in a whole range of varistors. Even if it is not represented, the varistor can be replaced if necessary by a capacitor that will have an impedance inversely proportional to the frequency, so that at high frequencies its impedance is small and this favors that the impulses can be established between the input terminals and central (2 and 3) in the presence of over pulses in the input terminal (2).
- Vt time voltage
- the conductive element (5) is provided as a wire through whose diameter and length can be influenced in its self-inductance value (L), as well as the adjustment to the intensities supported in normal operating regime.
- said conductive element (5) can be arranged as a wound wire forming turns (not shown), so that the longitudinal dimension of the protection device can be shortened and its self-inductance value can be selected, but also said conductive element (5) can be arranged as a reactance itself.
- the insulating tube (6) can be provided based on a flexible material, for example based on hard silicone, so that it can be arranged with a rolled configuration in the form of a toroidal section (not shown). In this way, it is possible to generate in the protection device (1) a magnetic repulsion effect that facilitates the formation of the discharge arc between the input and central terminals (2 and 3).
- a protection device according to the above described and represented is easy to encapsulate so that it can be used as a single element in any type of electrical or electronic circuit.
- a protection device according to the above described can be advantageously used in a fuse link resistant to current impulses.
- a so-called fuse link is a device commonly used for protection against overcurrents of electrical and electronic circuits.
- a typical fuse link (10) has: a plug cap (100); a link head (101) connected to the plug cap; a first connection (102) connected to the link head; a second connection (103) connected through a fuse element (104) with a third connection (105) of a connection braid (106); a tensioning wire (107) coupled between the second connection and the third connection; and an auxiliary protection tube (108) in which the link head, the first and second connections, the fuse element, the tension wire and a portion of the connection braid are encapsulated.
- the overcurrent protection device (1) will be coupled in said fuse link (10) connecting with its input terminal (2) to the first connection (102) of the link fuse, with its output terminal (4) to the second connection (103) of the fusible link and with its central terminal (3) to the third connection (105) of the fusible link through a conductive wire (1 1) not intended to melt.
- an associated limiting fuse (12) includes: respective first (120) and second (121) connecting capsules; a first contact portion (122) connected to the first connection capsule (120) and a second contact portion (123), separated from the first portion, connected to a main fusible element (124) spirally arranged around a core central (125); a third contact portion (126) adjacent to the second contact portion and electrically isolated therefrom by means of an insulating portion (127), and to which third contact portion a secondary fuse element (1240) is connected, resistant to over current impulses, and also arranged spirally wound around the central core (125) parallel to the main fuse element (124); and a fourth metal contact piece (128) connected to the second connection capsule (121).
- an overcurrent protection device (1) is connected to said fuse link (12) with its input terminal (2) to the first portion of contact (122), with its output terminal (4) to the second contact portion (125) and with its central terminal (3) connected to the third contact portion (126) through a connecting wire (13) destined not to merge with the current impulses.
- a protection device according to the above described can also be advantageously used in a semiconductor protection fuse.
- a semiconductor protection fuse (14) includes: first (140) and second (141) connection capsules; and a main fuse element (142) extending between said first and second connection capsules.
- an overcurrent protection device (1) is connected to said protection fuse (14) with its input terminal (2) connected to the first connection capsule (140) and with its output terminal (4) connected to the main fuse element (142) of the protection fuse (14) and with its central terminal (3) connected through a connection wire ( 143), not intended to blow, with the main fuse element (143).
- a protection element (E) such as a capacitor or a varistor is provided, connected between its input terminal (2) and its central terminal (3)
- the over current impulse protection device can be used in advantageous way for the protection, among others, of power semiconductor circuits.
- technical modifications of all kinds are possible and the invention will only be limited by the scope of the following claims.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/902,524 US10043631B2 (en) | 2013-07-02 | 2013-07-02 | Device for protecting against overcurrents in electric circuits and uses of said device in a fuse link and in a related limiting fuse as well as in fuses for protecting semiconductors |
PCT/ES2013/070453 WO2015001140A1 (es) | 2013-07-02 | 2013-07-02 | Dispositivo de protección contra sobre intensidades en circuitos eléctricos y utilizaciones de dicho dispositivo en un eslabón fusible y en un fusible limitador asociado así como en fusibles para protección de semiconductores |
CA2917219A CA2917219A1 (en) | 2013-07-02 | 2013-07-02 | Overcurrent protection device for electrical circuits and use of the said device on a fuse link and an associated limiter fuse, as well as on semiconductor protection fuses |
MX2016000081A MX347690B (es) | 2013-07-02 | 2013-07-02 | Dispositivo de proteccion contra sobre intensidades en circuitos electricos y utilizaciones de dicho dispositivo en un eslabon fusible y en un fusible limitador asociado asi como en fusibles para proteccion de semiconductores. |
EP13888589.2A EP3018692A4 (en) | 2013-07-02 | 2013-07-02 | Device for protecting against overcurrents in electric circuits and uses of said device in a fuse link and in a related limiting fuse as well as in fuses for protecting semiconductors |
US16/030,517 US20180323031A1 (en) | 2013-07-02 | 2018-07-09 | Device for protecting against overcurrents in electric circuits and uses of said device in a fuse link and in a related limiting fuse as well as in fuses for protecting semiconductors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2013/070453 WO2015001140A1 (es) | 2013-07-02 | 2013-07-02 | Dispositivo de protección contra sobre intensidades en circuitos eléctricos y utilizaciones de dicho dispositivo en un eslabón fusible y en un fusible limitador asociado así como en fusibles para protección de semiconductores |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/902,524 A-371-Of-International US10043631B2 (en) | 2013-07-02 | 2013-07-02 | Device for protecting against overcurrents in electric circuits and uses of said device in a fuse link and in a related limiting fuse as well as in fuses for protecting semiconductors |
US16/030,517 Continuation US20180323031A1 (en) | 2013-07-02 | 2018-07-09 | Device for protecting against overcurrents in electric circuits and uses of said device in a fuse link and in a related limiting fuse as well as in fuses for protecting semiconductors |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015001140A1 true WO2015001140A1 (es) | 2015-01-08 |
Family
ID=52143139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2013/070453 WO2015001140A1 (es) | 2013-07-02 | 2013-07-02 | Dispositivo de protección contra sobre intensidades en circuitos eléctricos y utilizaciones de dicho dispositivo en un eslabón fusible y en un fusible limitador asociado así como en fusibles para protección de semiconductores |
Country Status (5)
Country | Link |
---|---|
US (2) | US10043631B2 (es) |
EP (1) | EP3018692A4 (es) |
CA (1) | CA2917219A1 (es) |
MX (1) | MX347690B (es) |
WO (1) | WO2015001140A1 (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110336131B (zh) * | 2019-06-18 | 2021-01-19 | 中国舰船研究设计中心 | 船载短波通信系统直击雷防护装置及其防护评估方法 |
Citations (9)
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US4121187A (en) | 1977-06-21 | 1978-10-17 | A. B. Chance Company | High speed ratio, dual fuse link |
US4342978A (en) * | 1979-03-19 | 1982-08-03 | S&C Electric Company | Explosively-actuated switch and current limiting, high voltage fuse using same |
ES8305155A1 (es) * | 1981-01-19 | 1983-03-16 | Westinghouse Electric Corp | "mejoras introducidas en un interruptor de circuito al vacio". . |
US5119060A (en) | 1991-01-23 | 1992-06-02 | Cooper Power Systems, Inc. | Dropout expulsion fuse |
US5300914A (en) | 1991-01-23 | 1994-04-05 | Cooper Power Systems, Inc. | Dropout expulsion fuse |
ES2063226T3 (es) * | 1989-11-03 | 1995-01-01 | Alsthom Gec | Disyuntor limitador de sobretensiones. |
US5852396A (en) | 1997-08-19 | 1998-12-22 | S&C Electric Company | Fusible element with high surge capability |
US6583708B1 (en) | 2000-07-14 | 2003-06-24 | Hubbell Incorporated | Fuse cutout with integrated link break lever and fuse link ejector |
WO2013093033A1 (fr) * | 2011-12-21 | 2013-06-27 | Alstom Technology Ltd | Dispositif de protection contre les particules engendrees par un arc electrique de commutation |
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US2174477A (en) * | 1938-10-29 | 1939-09-26 | Ralph R Pittman | Surge-protected fuse link |
US2404999A (en) * | 1940-04-24 | 1946-07-30 | Westinghouse Electric Corp | Circuit interrupter |
GB556491A (en) * | 1941-04-24 | 1943-10-07 | British Thomson Houston Co Ltd | Improvements in and relating to impulse-protected electric fuses |
US3304387A (en) * | 1966-01-24 | 1967-02-14 | S & C Electric Co | Current-limiting fuse having parallel current-limiting elements and a series connected current calibrated element with auxiliary arc gaps to blow the current-limiting elements one by one |
CA1264791A (fr) * | 1987-03-20 | 1990-01-23 | Vojislav Narancic | Fusible ayant un corps extincteur d'arc en ceramique rigide non poreuse et methode de fabrication de ce fusible |
US5027100A (en) * | 1990-02-12 | 1991-06-25 | Porta Systems Corp. | Gas tube fail safe device for telephone protector modules |
US5073839A (en) * | 1989-07-27 | 1991-12-17 | Yallon H C | Dual AC fuse, a fuse holder and a method for: simultaneous selection of fusing element and line voltage |
JP2794346B2 (ja) * | 1991-02-05 | 1998-09-03 | 三菱マテリアル 株式会社 | サージ吸収器 |
ES1033747Y (es) * | 1996-04-02 | 1997-03-01 | Ind De Aparellaje Electrico S | Protector fusible de alta tension |
US7928826B1 (en) * | 2006-08-04 | 2011-04-19 | Rockwell Collins, Inc. | Electrical switching devices using a shape memory alloy (SMA) actuation mechanism |
CA2805758A1 (en) * | 2010-07-20 | 2012-01-26 | Cooper Technologies Company | Fuse link auxiliary tube improvement |
US9490096B2 (en) * | 2013-03-14 | 2016-11-08 | Mersen Usa Newburyport-Ma, Llc | Medium voltage controllable fuse |
-
2013
- 2013-07-02 EP EP13888589.2A patent/EP3018692A4/en not_active Withdrawn
- 2013-07-02 MX MX2016000081A patent/MX347690B/es active IP Right Grant
- 2013-07-02 WO PCT/ES2013/070453 patent/WO2015001140A1/es active Application Filing
- 2013-07-02 US US14/902,524 patent/US10043631B2/en not_active Expired - Fee Related
- 2013-07-02 CA CA2917219A patent/CA2917219A1/en not_active Abandoned
-
2018
- 2018-07-09 US US16/030,517 patent/US20180323031A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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US4342978A (en) * | 1979-03-19 | 1982-08-03 | S&C Electric Company | Explosively-actuated switch and current limiting, high voltage fuse using same |
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Also Published As
Publication number | Publication date |
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EP3018692A1 (en) | 2016-05-11 |
CA2917219A1 (en) | 2015-01-08 |
EP3018692A4 (en) | 2017-03-15 |
US20160268093A1 (en) | 2016-09-15 |
MX2016000081A (es) | 2016-03-01 |
MX347690B (es) | 2017-05-09 |
US10043631B2 (en) | 2018-08-07 |
US20180323031A1 (en) | 2018-11-08 |
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