EP0867896A1 - Schutzanordnung für eine Niedrigspannungsschaltung, Modul für eine solche Schutzanordnung und Schaltung für diesen Modul - Google Patents

Schutzanordnung für eine Niedrigspannungsschaltung, Modul für eine solche Schutzanordnung und Schaltung für diesen Modul Download PDF

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Publication number
EP0867896A1
EP0867896A1 EP98400694A EP98400694A EP0867896A1 EP 0867896 A1 EP0867896 A1 EP 0867896A1 EP 98400694 A EP98400694 A EP 98400694A EP 98400694 A EP98400694 A EP 98400694A EP 0867896 A1 EP0867896 A1 EP 0867896A1
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EP
European Patent Office
Prior art keywords
module
base
protection
varistor
compartment
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.)
Withdrawn
Application number
EP98400694A
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English (en)
French (fr)
Inventor
Vladimir Murko
Christian Macanda
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CITEL SAS
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CITEL SAS
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Filing date
Publication date
Application filed by CITEL SAS filed Critical CITEL SAS
Publication of EP0867896A1 publication Critical patent/EP0867896A1/de
Withdrawn legal-status Critical Current

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    • 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
    • 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; Arresters
    • 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; Arresters
    • H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/12—Means structurally associated with spark gap for recording operation thereof

Definitions

  • the invention relates to a device for protecting a low voltage electrical circuit against transient overvoltages, device of the kind of those which include at least one element of protection, in particular consisting of a varistor, associated with a thermal disconnector capable of actuating signaling means visual when the protective element undergoes abnormal overheating, in particular at the end of its life, and means of connection to the network.
  • at least one element of protection in particular consisting of a varistor, associated with a thermal disconnector capable of actuating signaling means visual when the protective element undergoes abnormal overheating, in particular at the end of its life, and means of connection to the network.
  • Low voltage electrical circuits concerned correspond, according to the usual acceptance, to circuits under electrical voltages of 230/400 Volts.
  • Transient overvoltages against which protection is sought may be of origin various, lightning, industrial disturbances etc ... protection are, in general, connected between a line (phase or neutral) of the circuit to be protected and the earth, and the protective element is provided to divert a very strong discharge current to the earth when a transient overvoltage appears.
  • the protective element is often made up of a zinc oxide (ZnO) varistor type component whose conductance increases suddenly when the voltage across it crosses a certain threshold; this property is used to limit transient overvoltages by discharging a discharge current through the varistor electrically connected in parallel on the network to protect.
  • ZnO zinc oxide
  • the object of the invention is, above all, to provide a device for protection which, while ensuring the protection functions already existing, either of a construction allowing a simple installation and fast, and whose return to service, when a protective element is to be replaced, as quickly as possible.
  • the protective device can be provided for provide additional protective functions.
  • a device for protecting a circuit low voltage electric against transient overvoltages is characterized by the fact that it comprises a base, suitable for being fixed, comprising the means of connection to the network, and a removable plug-in module on the base, module containing the protection element (s).
  • the device comprises male pins, provided in particular on the module, and combined sockets, provided in particular on the base, to establish an electrical connection between module and base by plugging in.
  • the base has the shape of a U-shaped bracket between the branches of which the module in the form of rectangular parallelepiped, the electrical connection means between base and module being provided between the base, or core, of the U and the facing face of the module, while the signaling means include at at least one indicator and at least one window provided on the face of the module opposite the base of the U.
  • the protective device generally includes means of remote signaling; according to the invention these means of remote signaling include, in the module, a lug associated with each protective element and suitable for projecting from the face of the module facing the base, this lug cooperating with means of contact provided in the base, which has a hole on its base associated with each lug and suitable for being crossed by it.
  • the base has on its opposite face to the module of the fixing means, in particular the means latching on a rail.
  • the invention also relates to a module for a protection device as defined above, this module being characterized in that it is detachably pluggable onto a base and that it contains the protective element (s).
  • this module has the form of a rectangular parallelepiped and has, inside the parallelepiped rectangle, a substantially right-angled partition, orthogonal to large faces of the parallelepiped, and having one side parallel to the face of the parallelepiped coming opposite the base of the base, the space located between this side and said face constituting a compartment for module contacts, the other side of the partition being parallel to one face from the module orthogonal to the previous one, the space between this other side and this other face constituting a compartment for the means of signaling, while the space inside the dihedral formed by the partition and limited by opposite walls of the parallelepiped constitutes a compartment, possibly subdivided, for the element (s) of protection.
  • the protective elements compartment can be divided into two sub-compartments, each sub-compartment having a means of protection which may have a function similar to, or different from, that of the other's means of protection sub-compartment.
  • one of the sub-compartments contains a varistor connected between a terminal line and earth, and the other sub-compartment contains a varistor connected between the line terminal and the neutral, means of signaling assigned to each means of protection being provided.
  • the module remains identical, particularly in terms of its pins, for a line consisting of a phase or the neutral of a circuit, the neutral base having an internal connection adapted.
  • one of the sub-compartments contains a varistor connected between a line, phase or neutral, of a circuit and ground, and the other sub-compartment contains a means of short-circuit protection, signaling means allocated to each means of protection being provided.
  • the short circuit protection means can understand a copper blade capable of breaking under an intensity predetermined, while being able to withstand a transient intensity shock greater than the short-circuit current.
  • the copper strip is arranged between a fixed point on the housing and a tab ensuring connection with a plug-in terminal and subjected to the action of an optical indicator spring assigned to the blade, and a resistive wire mechanically retains the tab.
  • the module advantageously includes protection against excessive overvoltages, this protection being formed by in particular by a link with a small section between a terminal of the varistor and an external connection terminal, connection suitable for break when the transient shock intensity exceeds a limit value determined, and to disconnect the varistor.
  • the invention also relates to a protection circuit. for the module.
  • the protection circuit surge protector includes a varistor connected between a line, phase or neutral, and earth, and a varistor connected between the line and neutral, a thermal disconnector being provided for each varistor.
  • the circuit includes a varistor connected with a thermal disconnector between a line (phase or neutral) and earth, and a means of protection against short circuits, in series with the varistor.
  • the invention consists, apart from the provisions set out above, in a number of other provisions which will be more Explicit question below about examples of realizations described with reference to the accompanying drawings, but which are not in no way limiting.
  • Figure 1 of these drawings is a front view in perspective of a protective device for a low electrical circuit voltage, according to the invention, the module being plugged into the base.
  • Figure 2 is a perspective view from the rear of the base and module separate from the base.
  • Figure 3 is an elevational view of the base of Figure 1, the module being removed.
  • Figure 4 is a perspective side view of a module open on its large faces, corresponding to the diagram Figure 7.
  • Figure 5 is a perspective view of the opposite side of the Figure 4 module.
  • Figure 6 is a schematic perspective view, under another angle, of the connection of the two varistors of the module of Figures 4 and 5, the concordance of views between this Figure 6 and the Figures 4 and 5 not being exactly observed due to simplification.
  • Figure 7 is an electrical diagram corresponding to the module of Figures 4 and 5.
  • Figure 8 is an exploded perspective view of a module corresponding to the electrical diagram in Figure 9.
  • Figure 9 is an electrical diagram of the protection corresponding to the module in Figure 8.
  • Figure 10 is a bottom view of the module pinout in Figure 8.
  • Figure 11 is a perspective view, on a larger scale ladder, with parts torn off, of contact means provided in the base, represented in a position corresponding to elements of defective protection in the module.
  • Figure 12 shows, similarly to Figure 11, the contact means when the protection elements of the module are in good condition.
  • Figure 13 is a section on a larger scale, by a median plane, from the base of the protection device.
  • a protection device 1 of a low voltage electric circuit against transient overvoltages includes a base 2, clean to be fixed, comprising means 3a, 3b for connection to the network (for example screw terminals), and a plug-in protection module 4 removably on the base 2.
  • the protection module 4 contains, in the example considered, two protective elements 5a, 5b (Fig. 4 to 6) made up by varistors in the form of a substantially square pancake.
  • the base 2 has the shape of a U-shaped stirrup whose medium plane is vertical as shown in Figures 1 and 3.
  • Module 4 in shape of a rectangular parallelepiped with two large opposite faces corresponding to the opening of the U, is engaged between the branches 6a, 6b of the stirrup, connected by the base or core 7.
  • Electrical connection means between the base 2 and the module 4 are provided in the base 7 of the base and the facing face 8 of the module.
  • These electrical connection means comprise pins male 9a, 9b, 9c provided on module 4, and female sockets conjugates 10a, 10b, 10c provided in the base 7 of the base.
  • the pins preferably consist of rectangular section blades elongated, the sockets having a complementary shape. In the example considered, corresponding to the diagram in Figure 7, three pins are planned.
  • Pins 9a, 9b admit the same parallel mean plane to the large faces of module 4 and are preferably symmetrical by compared to the mean plane of the third central pin 9c which is orthogonal to the large faces of module 4.
  • the layout corresponding sockets 10a, 10b, 10c appears in Figure 3.
  • Module 4 includes, inside the parallelepiped, a partition 11 (Fig. 4 and 5) substantially in right dihedral, orthogonal with the large faces of the parallelepiped.
  • a partition 11 substantially in right dihedral, orthogonal with the large faces of the parallelepiped.
  • One side 12 of this partition is parallel to face 8 of the module.
  • the space between this side 12 and said face 8 constitutes a compartment 13 for the module contacts 4.
  • the other side 14 of the partition 11 is parallel to a face 15 of the module orthogonal to face 8.
  • the space between this other side 14 and the face 15 constitutes an "indicator" compartment 16 for means signaling S which will be discussed later.
  • This compartment 19 is divided into two sub-compartments 19a, 19b by a veil 20 substantially at mid-width of the faces 15, 17 and 18.
  • veil 20 of separation continues in compartment 16 occupied by indicators specific to each protection element. However, the veil 20 does not continue in compartment 13 of the contact means.
  • Each sub-compartment 19a, 19b receives a varistor 5a, 5b.
  • Each varistor has, on one of its large faces, a terminal 21a, 21b for electrical connection and, on its other face, another terminal shown schematically at 22a, 22b in the Figure 7.
  • Terminal 21a, 21b is connected by a solder 23, suitable for melting at relatively low temperature (for example around 140 ° C), at a metal tab 24a, 24b extending parallel to the faces 8, 18 towards compartment 16.
  • the end of each remote leg of terminal 21a, 21b is bent in a square beyond the partition 11 and forms a return linked, in particular by plastic riveting, to a corresponding signaling element 25a, 25b.
  • This element 25a, 25b can slide in compartment 16 under the action of a spring associated compression 26a, 26b.
  • Each element 25a, 25b constitutes an "optical indicator" located in one of the two parts of compartment 13 determined by the tracking the veil 20.
  • Each optical indicator 25a, 25b can thus be move in translation in its housing without being hindered by the other optical indicator.
  • An optical indicator 25a, 25b consists of a colored plastic parallelepiped having one end display, for example red, located opposite the face 8 and may come, under the action of the spring 26a, 26b, against a transparent window 27a, 27b provided on the edge of face 18, on the right compartment 16.
  • Each optical indicator 25a, 25b is kept distant windows 27a, 27b, in a position where the spring 26a, 26b is compressed because it is mechanically linked to the tab 24a, 24b.
  • the optical indicator 25a, 25b is integral with a plate metallic (not visible) which makes the electrical connection between the tab 24a, 24b and a flexible deformable conductor 28a, 28b itself connected to the plug-in pin 9a of the module with sufficient length not to not hinder the movement of the optical indicator 25a, 25b.
  • the optical indicator 25a, 25b is integral with a rod whose end remote from this indicator constitutes a lug 29a, 29b forming part of means of remote signaling.
  • Each spring 26a, 26b is threaded on the rod ending with the lug, and is compressed between the face 8 of the housing and the base of the optical indicator 25a, 25b held mechanically by the tab 24a, 24b.
  • the pins 29a, 29b protrude perpendicular to the face 8 (see Fig. 2) in the direction of base 7, which has two holes 30a, 30b to receive them.
  • the set of elements 25a, 25b, springs 26a, 26b, and windows 27a, 27b form the signaling means S.
  • Means of remote signaling, to indicate remotely the disconnection of a protective element further include at least one contact means 31, schematically shown in the Figure 7, housed in the base 2 and associated with a lug.
  • Each module can have one or two lugs remote signaling, depending on the number of protective elements placed in the module.
  • each contact 31a, 31b is associated with each lug.
  • Each contact comprises, in a conventional manner, an arm of control K articulated at one end; the other end of the arm K cooperates with the associated lug.
  • a remote signaling terminal block 32 accessible from the outside of base 2 ( Figure 1), is provided. A suitable electrical connection is made between the terminals of terminal block 32 and those of the various contacts 31a, 31b. Terminal block 3 has only three terminals that there is only one contact 31 or two contacts 31a, 31b in the base 2.
  • the base 2 is hollow and the contacts 31a 31b, are advantageously housed in a corner area, at the junction between the core 7 and a branch 6a of the base 2.
  • the displacement of the display element 25a, 25b causes a retraction of the pin 29a or 29b relative to the base 7.
  • This displacement of the lug 29a, 29b is accompanied by a displacement of the arm K and a change of state of contact 31a, 31b which can be detected remotely.
  • This contact 31a, 31b is indeed inserted in a line of remote signaling connected to terminal block 32 (Fig. 1 and 3) provided with a end of base 7 of the base.
  • the faces 15 and 17 of the module 4 each have a longitudinal projection 33 suitable for cooperating with an associated groove 34 provided on the internal face of each branch 6a, 6b of the base.
  • the arrangement of the projections 33 and the grooves 34 is provided to ensure guidance and polarization.
  • Cross reliefs 35 may be provided in part high of the faces 15 and 17 to facilitate the gripping of the module 4.
  • the base 2 comprises, on its face opposite to the module 4, latching means 36 on a rail.
  • Module 4 also includes protection against excessively high overvoltages, for example more than 10% higher than the maximum acceptable value for a varistor (for example 40 kA).
  • This protection is formed, for each tab 24a, 24b, by a link with a small section, consisting of two fingers 37 ', 37 " relatively narrow (Fig. 4 and 5), with the corresponding terminal 21a, 21b of the varistor.
  • This link with a small section is suitable for break when the transient shock intensity exceeds a limit value determined. This results in a disconnection which protects the varistor of a load too high.
  • the signaling means S are then activated.
  • FIG. 7 The electrical diagram of protection device 1 of Figures 1 to 5 is illustrated in Figure 7.
  • the same references numeric or literal are used to denote the different schematic elements.
  • the varistor 5a including a terminal 22a is connected to the ground pin 9b and whose other terminal 21a is connected to the line pin 9a via thermal protection, ensured by the thermal fuse Ft (solder 23).
  • Varistor 5b has a terminal 21b connected to pin 9a also via the thermal fuse Ft.
  • the other terminal 22b of the varistor 5b is connected to the pin 9c of the neutral.
  • the diagram in Figure 7 represents a configuration original: it is a surge arrester allowing to protect in common (between phase and earth) and in differential mode (between phase and neutral), this arrester being based on a removable block or module 4 and independent, inserted in a specially prepared base 2.
  • Each module 4, as illustrated in FIG. 6, integrates two varistors 5a, 5b.
  • Varistor 5a is connected between phase (pin 9a) and earth (pin 9b), while varistor 5b is connected between the phase connected to pin 9a and the neutral connected to pin 9c.
  • Module 4 positioned on base 2 assigned to "neutral” will have its varistor 5b (which is connected in differential) strapped, i.e. shunted, by an internal connection of the base 2 since, in this case, the module pin 9a is engaged in a connected socket neutral.
  • the individual bases 2, juxtaposed can be electrically interconnected by a neutral "bus” and a "bus” earth passing through lights E (Fig. 2) provided in the base 2.
  • the mechanical assembly of four juxtaposed bases, for a three-phase protection with neutral can be done by riveting through openings O (Fig. 1 and 2) provided for this purpose in the bases 2 and of axis perpendicular to the mean plane of each base.
  • FIG. 8 shows, in exploded perspective, with parts removed, a variant 104 of the protection module according to the invention.
  • the elements of this module identical or playing roles analogous to elements already described in connection with the preceding figures will be designated by the same reference numbers, possibly preceded by the number 1 of a hundred, without their description being detailed.
  • This module 104 combines two functions normally distinct ie the "surge arrester" function which continues to be exercised by varistor 5a located in the same sub-compartment of protection as in Figures 4 and 5, and protection against short-circuit currents (Icc) provided by means provided in the other protection sub-compartment.
  • This "fuse" sub-compartment includes a blade copper 38, specially calibrated in length, thickness and section, to disconnect, by breaking, on fault currents envisaged (for example 20,000 A effective) without, however, acting on the transient shock currents acceptable by varistor 5a (by example 40 kA in 5/20 ⁇ s wave).
  • the fuse is incorporated in the module and consists of blade 38. As this is to protect power lines, if there is a short-circuit current between line and earth at the module protective, there can be a current of 3000 amps. It is one of reasons why we use varistors and not gas spark gaps, because if a spark gap starts, it is not excluded that it remains initiated after the overvoltage has passed since the voltage of the line is already important, which is not the case for telecommunications.
  • the advantage of a varistor is, moreover, that its reaction time is extremely short and so we can act with very steep surge edges while the gas spark gap is much slower.
  • the downside of a varistor is that it leaves pass a leakage current of a few milliamps, which causes aging varistor while the gas spark gap has no leakage current.
  • the "electric fuse” Fe consists of the blade of copper 38.
  • This blade 38 is fine (a few tenths of a millimeter thick) and perforated so as to reduce its section. She is willing, as shown in Figure 8, between a fixed point on the housing and the tab at square 124 which ensures the connection with the plug-in terminal.
  • This copper plate 38 is not able to mechanically retain the spring 26b of the optical indicator 25b assigned to this blade 38. We therefore have added a resistive wire 40 which mechanically retains the tab 124.
  • This blade 38 is located substantially in the middle of the large section of module 4 with its parallel longitudinal direction on faces 15 and 17.
  • the blade 38 may have, in particular towards each from its ends, undulations 39 substantially in the form of a dihedral.
  • the end of the blade 38 closest to the side 12 of the partition 11 is mechanically and electrically connected to a transverse blade 41.
  • the other end of the blade 38 is mechanically connected and electrically to a lug 124, itself connected to the indicator element 25b.
  • the flexible conductor 28b connects the tab 124 to the pin 9a.
  • the blade 41 is electrically connected to the other pin 9b (earth) via the thermal fuse Ft (Fig. 9) and the varistor 5a connected in series with the electric fuse Fe consisting by this blade 38.
  • the module 104 has on its underside, as visible in Figure 10, two pins 9a, 9b and two pins 29a, 29b.
  • the assembly of the blade sub-compartment 38 is advantageously filled with sand 42.
  • the indicator 25b subjected to the action of the compression spring, will move against window 27b to report the disconnection.
  • the second indicator 25a remains associated with the varistor 5a to indicate its possible decommissioning.
  • the diagram of the protection circuit in the module can be one of the following.
  • a first scheme corresponding to protection in common mode, has two terminals respectively connected to the phase and to neutral, each terminal being connected, by a thermal fuse and a varistor connected in series, to a third earth terminal.
  • the protection is particularly simple to implement, ensures indication of decommissioning, on site and remotely, by means simple and effective, and allows a quick and simple replacement of a module disabled.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP98400694A 1997-03-25 1998-03-25 Schutzanordnung für eine Niedrigspannungsschaltung, Modul für eine solche Schutzanordnung und Schaltung für diesen Modul Withdrawn EP0867896A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9703606 1997-03-25
FR9703606A FR2761543B1 (fr) 1997-03-25 1997-03-25 Dispositif de protection d'un circuit electrique basse tension, module pour un tel dispositif de protection, et circuit pour le module

Publications (1)

Publication Number Publication Date
EP0867896A1 true EP0867896A1 (de) 1998-09-30

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EP98400694A Withdrawn EP0867896A1 (de) 1997-03-25 1998-03-25 Schutzanordnung für eine Niedrigspannungsschaltung, Modul für eine solche Schutzanordnung und Schaltung für diesen Modul

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EP (1) EP0867896A1 (de)
FR (1) FR2761543B1 (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2867318A1 (fr) * 2004-03-05 2005-09-09 Soule Protection Surtensions Dispositif de protection contre les surtentions en mode commun diffenrentiel de dimension reduite
WO2005112211A1 (fr) * 2004-04-19 2005-11-24 Soule Protection Surtensions Dispositif de protection contre les surtensions pourvu de moyens de deconnexion et de visualisation ameliores
EP1737091A1 (de) * 2005-05-18 2006-12-27 Dehn + Söhne Gmbh + Co Kg Überspannungsableiter, umfassend ein schienenmontierbares Basisteil mit elektrischer Anschlussklemmen sowie ein auswechselbares Einsteckteil
EP1791231A1 (de) * 2005-11-28 2007-05-30 Legrand France Elektrische Überspannungsschutzvorrichtung und elektrische Schalttafel, die eine solche Vorrichtung umfasst
WO2007147676A1 (de) * 2006-06-23 2007-12-27 Dehn + Söhne Gmbh + Co. Kg Steckbarer überspannungsableiter mit einem oder mehreren überspannungsschutzelementen
DE102008048644A1 (de) 2008-08-01 2010-02-04 Dehn + Söhne Gmbh + Co. Kg Überspannungsschutzgerät mit einem oder mehreren parallel geschalteten, in einer baulichen Einheit befindlichen überspannungsbegrenzenden Elementen
EP2375424A1 (de) * 2010-04-09 2011-10-12 ABB France Schutzvorrichtung gegen Überlastspannung mit parallelen Thermoabschaltern
US8378778B2 (en) 2010-04-09 2013-02-19 Abb France Varistor comprising an electrode having a protruding portion forming a pole and protection device comprising such a varistor
CZ304868B6 (cs) * 2011-04-01 2014-12-17 Saltek S.R.O. Svodič přepětí s výměnným modulem přepěťové ochrany
CN105703320A (zh) * 2014-11-24 2016-06-22 施耐德电气工业公司 微型断路器
WO2019121202A1 (de) * 2017-12-22 2019-06-27 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzanordnung
CN114864203A (zh) * 2022-06-10 2022-08-05 浙江元达防雷科技有限公司 一种b+c三相电源防雷器
US11482354B2 (en) * 2018-04-04 2022-10-25 Tdk Electronics Ag Thermal protection device
CN116110756A (zh) * 2021-11-10 2023-05-12 上海良信电器股份有限公司 断路器底座及断路器
US12057667B2 (en) 2021-05-11 2024-08-06 Norman R. Byrne Electrical plug with replaceable surge protector
EP4697530A1 (de) 2024-07-16 2026-02-18 Citel Schutzvorrichtung zum schutz einer überspannungsschutzvorrichtung

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US4903295A (en) * 1987-08-07 1990-02-20 Gte Products Corporation Compact solid state station protector device
CH677297A5 (en) * 1986-11-20 1991-04-30 Bettermann Obo Ohg Plug-in voltage surge arrester with overvoltage protector
EP0436881A1 (de) * 1990-01-12 1991-07-17 Hermann Kleinhuis GmbH. & Co. KG Überspannungsableiter
US5412526A (en) * 1993-02-10 1995-05-02 Square D Company Surge arrester circuit and housing therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677297A5 (en) * 1986-11-20 1991-04-30 Bettermann Obo Ohg Plug-in voltage surge arrester with overvoltage protector
US4903295A (en) * 1987-08-07 1990-02-20 Gte Products Corporation Compact solid state station protector device
EP0436881A1 (de) * 1990-01-12 1991-07-17 Hermann Kleinhuis GmbH. & Co. KG Überspannungsableiter
US5412526A (en) * 1993-02-10 1995-05-02 Square D Company Surge arrester circuit and housing therefor

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005086182A1 (fr) * 2004-03-05 2005-09-15 Soule Protection Surtensions Dispositif de protection contre les surtensions en mode commun/differentiel de dimension reduite
FR2867318A1 (fr) * 2004-03-05 2005-09-09 Soule Protection Surtensions Dispositif de protection contre les surtentions en mode commun diffenrentiel de dimension reduite
US7684166B2 (en) 2004-04-19 2010-03-23 Abb France Surge voltage protection device with improved disconnection and visual indication means
WO2005112211A1 (fr) * 2004-04-19 2005-11-24 Soule Protection Surtensions Dispositif de protection contre les surtensions pourvu de moyens de deconnexion et de visualisation ameliores
CN100566056C (zh) * 2004-04-19 2009-12-02 苏勒过压保护公司 具有改进的断开部件和可视指示部件的浪涌电压保护装置
EP1737091A1 (de) * 2005-05-18 2006-12-27 Dehn + Söhne Gmbh + Co Kg Überspannungsableiter, umfassend ein schienenmontierbares Basisteil mit elektrischer Anschlussklemmen sowie ein auswechselbares Einsteckteil
EP1791231A1 (de) * 2005-11-28 2007-05-30 Legrand France Elektrische Überspannungsschutzvorrichtung und elektrische Schalttafel, die eine solche Vorrichtung umfasst
FR2894060A1 (fr) * 2005-11-28 2007-06-01 Legrand France Appareil electrique de protection contre les surtensions transitoires et tableau electrique le comportant
WO2007147676A1 (de) * 2006-06-23 2007-12-27 Dehn + Söhne Gmbh + Co. Kg Steckbarer überspannungsableiter mit einem oder mehreren überspannungsschutzelementen
US8493170B2 (en) 2008-08-01 2013-07-23 Dehn + Söhne Gmbh + Co. Kg Overvoltage protection device having one or more parallel-connected overvoltage-limiting elements located in one physical unit
DE102008048644A1 (de) 2008-08-01 2010-02-04 Dehn + Söhne Gmbh + Co. Kg Überspannungsschutzgerät mit einem oder mehreren parallel geschalteten, in einer baulichen Einheit befindlichen überspannungsbegrenzenden Elementen
EP2375424A1 (de) * 2010-04-09 2011-10-12 ABB France Schutzvorrichtung gegen Überlastspannung mit parallelen Thermoabschaltern
US8378778B2 (en) 2010-04-09 2013-02-19 Abb France Varistor comprising an electrode having a protruding portion forming a pole and protection device comprising such a varistor
US9007163B2 (en) 2010-04-09 2015-04-14 Abb France Device for protection from overvoltages with split thermal disconnectors
CZ304868B6 (cs) * 2011-04-01 2014-12-17 Saltek S.R.O. Svodič přepětí s výměnným modulem přepěťové ochrany
CN105703320A (zh) * 2014-11-24 2016-06-22 施耐德电气工业公司 微型断路器
CN105703320B (zh) * 2014-11-24 2019-06-04 施耐德电气工业公司 微型断路器
CN111480213A (zh) * 2017-12-22 2020-07-31 菲尼克斯电气公司 过电压保护组件
WO2019121202A1 (de) * 2017-12-22 2019-06-27 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzanordnung
CN111480213B (zh) * 2017-12-22 2023-06-06 菲尼克斯电气公司 过电压保护组件
US11482354B2 (en) * 2018-04-04 2022-10-25 Tdk Electronics Ag Thermal protection device
US12057667B2 (en) 2021-05-11 2024-08-06 Norman R. Byrne Electrical plug with replaceable surge protector
CN116110756A (zh) * 2021-11-10 2023-05-12 上海良信电器股份有限公司 断路器底座及断路器
CN114864203A (zh) * 2022-06-10 2022-08-05 浙江元达防雷科技有限公司 一种b+c三相电源防雷器
CN114864203B (zh) * 2022-06-10 2024-01-30 浙江元达防雷科技有限公司 一种b+c三相电源防雷器
EP4697530A1 (de) 2024-07-16 2026-02-18 Citel Schutzvorrichtung zum schutz einer überspannungsschutzvorrichtung

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FR2761543A1 (fr) 1998-10-02
FR2761543B1 (fr) 1999-06-04

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