WO2020151826A1 - Dispositif disjoncteur sectionneur et dispositif à fusible commutateur comprenant un fusible - Google Patents

Dispositif disjoncteur sectionneur et dispositif à fusible commutateur comprenant un fusible Download PDF

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Publication number
WO2020151826A1
WO2020151826A1 PCT/EP2019/051754 EP2019051754W WO2020151826A1 WO 2020151826 A1 WO2020151826 A1 WO 2020151826A1 EP 2019051754 W EP2019051754 W EP 2019051754W WO 2020151826 A1 WO2020151826 A1 WO 2020151826A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
ioo
fuse
disconnector
protection device
Prior art date
Application number
PCT/EP2019/051754
Other languages
German (de)
English (en)
Inventor
Klaus Ewald Karl BRUCHMANN
Original Assignee
Klaus Bruchmann Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Klaus Bruchmann Gmbh filed Critical Klaus Bruchmann Gmbh
Priority to EP19701649.6A priority Critical patent/EP3915126B1/fr
Priority to PCT/EP2019/051754 priority patent/WO2020151826A1/fr
Publication of WO2020151826A1 publication Critical patent/WO2020151826A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
    • 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
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/205—Electric connections to contacts on the base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/167—Circuits for remote indication
    • 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
    • H01H2085/0266—Structural association with a measurement device, e.g. a shunt
    • 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
    • H01H2085/0291—Structural association with a current transformer

Definitions

  • the present invention relates to a switch disconnector device and / or to a switch fuse device for receiving at least one fuse or a fuse plug for such a fuse.
  • the present invention relates in particular to three-pole systems, optionally with an additional N pole.
  • Such devices are particularly suitable for fastening and connecting electrical devices, for example installation devices, in particular by means of a so-called top-hat rail or by means of busbar systems.
  • the device according to the invention further comprises a foot contact and a head contact within the housing for each fuse, which are designed such that they can be brought into contact with an associated foot contact and an associated head contact of the fuse when the fuse is inserted and in the operating state. It is preferably a three-pole device, so that the device is designed such that it can accommodate a total of three fuses, individual foot contacts and head contact, ie a total of three foot contacts and three head contacts, being provided for each of the fuses.
  • the head contact of the device according to the invention is provided in a fuse plug into which a fuse can be inserted, so that the fuse plug with the fuse can then be inserted into the housing of the device according to the invention.
  • the head contact of the fuse plug and the device are designed such that the head contact of the fuse plug is in electrical contact with an associated contact of the device when the fuse plug is in its operating position.
  • the foot contact of the switch disconnector device or the switch protection device is at least in a partial area flat or is designed such that it has a flat or substantially flat surface which is aligned in the direction of a foot contact of a fuse to be inserted, the foot contact of the device being within this sub-area has an elevation which extends in the direction of the foot contact of a fuse to be used and which can be brought directly or indirectly into electrical contact with the foot contact of the fuse with its area facing the foot contact of the fuse.
  • the device of the present invention further comprises a Rogowski coil on each of its foot contacts, which has an opening, in particular a central opening, which at least partially encompasses the elevation of the foot contact.
  • the device further comprises a device for capacitive voltage measurement, preferably for each individual phase (for each individual pole), so that a current and / or voltage measurement can also be carried out reliably for each phase.
  • this avoids the need for current measuring devices to be provided on the individual electrical devices, in particular on the installation devices, so that such a device allows increased flexibility in the use of the electrical devices, because basically all devices, regardless of whether they allow current measurement or not, can be connected to the device without having to forego the helpful information regarding the overall system.
  • a particular advantage is achieved by the special design of the foot contact of the device and the arrangement of the Rogowski coil: the elevation of the foot contact, which is located in the flat or flat portion of the foot contact of the device, interacts with the central opening of the Rogowski coil in such a way that a safe and reliable positioning is made possible, and the manufacturing process is simplified, which leads to a cost reduction.
  • Another advantage of the inventive design of the foot contact of the device according to the present invention and the associated Rogowski coil is that the Rogowski coil is arranged in a particularly space-saving manner in the housing, which is of great importance since the size of the housing is subject to certain restrictions and is kept as small as possible should.
  • the particular arrangement of the foot contact and the Rogowski coil as defined in this invention means that this air flow can be maintained despite the additional component, in particular the additional Rogowski coil having a plane that is parallel or essentially parallel to the prevailing air flow runs, so that this is only negatively influenced to a very small extent.
  • the heating of the device is an effect which must be carefully observed in order to avoid overheating. Since, as mentioned above, the housing should be largely closed, active cooling devices such as fans, for example, require additional effort, both spatial and financial, and should therefore be avoided, the arrangement of the individual components in a device according to the present invention very important, especially if an essentially plate-shaped element such as a Rogowski coil is additionally installed.
  • a device according to the present invention therefore not only has the advantage that the systems in which such devices are used can be better monitored and thus controlled, but at the same time ensures that the costs are kept low, in particular despite additional components Housing size small can be maintained, while in particular sufficient cooling can be ensured within the housing.
  • the elevation of the foot contact of the device is essentially or even exactly circular in cross-section, in a direction perpendicular to the direction of the elevation, the, preferably central, opening of the Rogowski coil having an inner contour that corresponds to the is adapted essentially circular outer contour of the foot contact.
  • a different cross-sectional shape of the elevation or the opening of the Rogowski coil for example an oval or an angular opening. It is also possible, for example, in a preferred embodiment, to provide a projection or a groove at one or more locations around the circumference of the elevation or at one or more angular positions of the opening of the Rogowski coil, which has a corresponding groove or a projection of the other element agrees that they can be brought into engagement with one another, so that a predetermined and fixed relative angular position between foot contact and Rogowski coil is also automatically ensured, which in particular simplifies production and prevents incorrect insertion of elements.
  • the plane in which the, preferably plate-shaped, Rogowski coil extends preferably extends substantially perpendicular to the longitudinal axis of a fuse to be used when it is in its operating position. This leads to a further optimization of the positioning of the necessary components and thus to a space-saving arrangement. In addition, it is reliably ensured that good electrical contact between the foot contact of the device on the one hand and the foot contact of a fuse to be used on the other hand is ensured.
  • the thickness of the Rogowski coil is preferably less than the height of the elevation of the foot contact of the switch disconnector device or the switch protection device, the height of the Elevation of the foot contact is preferably measured from the top of the just-formed partial area of the foot contact from which the elevation extends.
  • the device is designed such that it can be connected to a busbar system.
  • both the flat partial region of the foot contact and the plane in which the Rogowski coil extends are preferably aligned essentially parallel to a plane in which the busbars run or which is defined by the course of the busbars when the device is in its operating position, connected to the busbar system. This preferred arrangement further supports the effect already described above of ensuring adequate cooling of the system.
  • the device is designed such that it can be mounted on a top-hat rail.
  • both the flat partial area of the foot contact and the plane in which the Rogowski coil extends are preferably oriented essentially parallel to a plane in which the top-hat rail runs or which is formed by the course of the top-hat rail when the device is in its operating position, mounted on the top-hat rail, which also supports the effects of sufficient cooling already described above in connection with busbar systems.
  • a device according to the present invention also comprises a fitting sleeve which is designed such that only a fuse suitable for the device can be used. This ensures that incorrect operation, in particular the use of unsuitable fuses, is avoided.
  • a fitting sleeve is preferably designed in such a way that it comprises a receiving area for part of a usable fuse, the receiving area having a geometry, in particular an inner diameter, which is adapted to the geometry, in particular an outer diameter, of the suitable fuse. In particular, this ensures that no fuses can be used that could lead to an overload, in particular overheating, of the system.
  • a device according to the invention preferably further comprises a spring clip which is designed such that it at least partially encompasses the foot contact of the device, either a switch disconnector device or a switch protection device, and the fitting sleeve described above. This ensures a particularly reliable positioning and a particularly reliable electrical contact during operation.
  • the Rogowski coil is provided with a heat-resistant, insulating lacquer. This has the advantage that galvanic isolation of the Rogowski coil, in particular for foot contact, is ensured.
  • the device is designed such that the distances between the Rogowski coil and the foot contact, possibly also to other current-carrying parts, are selected such that galvanic isolation is ensured even without the heat-resistant, insulating varnish described above .
  • the electrical isolation between the evaluation electronics and the live or live parts or contacts of the device is of particular importance.
  • a voltage measurement is also required.
  • the device according to the invention in a preferred embodiment is also designed such that the voltage is measured capacitively or galvanically isolated from the contacts of the devices.
  • a switch disconnector device or a circuit breaker device which comprises a housing and a plurality of input connections for connection to a power supply and a plurality of output connections for connection to at least one electrical device, the device being designed in such a way that all output connections for connection at least one electrical device are arranged on one side of the housing, this one side extending essentially parallel to a longitudinal extension of the busbars or the top-hat rail and perpendicular to a plane which is formed by the busbars or the top-hat rail when the device is in their operating position, i.e. connected to the busbar system or mounted on the top-hat rail.
  • FIG. 1 schematically shows a first embodiment of a device according to the invention, this embodiment being a device for a
  • Top hat rail system acts
  • FIG. 2 shows a cross section through the embodiment shown in FIG. 1, with some components having been omitted to simplify the illustration;
  • FIG. 3 shows an embodiment of a foot contact with a Rogowski coil, a fitting sleeve and a spring clip, as can be used in a device according to the invention, in particular a device as shown in FIGS. 1 and 2;
  • FIG. 4 shows the components shown in FIG. 3 in an exploded view
  • FIG. 5 schematically shows a second embodiment of a device according to the invention, this embodiment being a device for a
  • FIG. 6 shows a cross section through the embodiment shown in FIG. 5, with some components having been omitted to simplify the illustration.
  • FIG. 1 shows a device 100 according to the present invention, this device 100 being a switch disconnector.
  • the device 100 comprises a housing 110 which is mounted on a top-hat rail 200.
  • the device 100 comprises input connections 120 and output connections 140, with all output connections 140 being arranged only on one side, in FIG. 1 on the right side.
  • the device 100 comprises a switching lever 180, which also functions as a cover that can be opened so that fuses can be inserted into the device 100, see in particular FIG. 2, which will be described below.
  • FIG. 2 shows a cross section through the embodiment shown in FIG. 1, but various components and connections have not been shown, or only schematically, in order to increase clarity.
  • the device 100 comprises a housing 110.
  • the device 100 has a switching lever 180, via which a movable contact 195 switches between a contact position, as shown in FIG. 2, and an off position can be.
  • a switch-on position shown in FIG. 2 and with a fuse 320 inserted electrical contact is therefore ensured via the input connections 120, the movable contact 195, a foot contact 160, the fuse 320 up to the output contact 140.
  • a fuse 320 can be inserted into the device 100, a fuse plug 300 being additionally provided in the device shown here, into which the fuse 320 is inserted, the fuse plug 300 with the fuse 320 then being inserted into the device Housing 110 of the device 100 is inserted and the fuse 320 can thereby be brought into contact with the associated foot contact 160 of the device 100.
  • the device 100 according to the invention further comprises a Rogowski coil 400, which is used for current measurement.
  • the Rogowski coil 400 is essentially a plate-shaped one Component formed, which has a central opening, which surrounds an elevation 164 of the foot contact 160 of the device 100, completely encloses in this embodiment.
  • a corresponding arrangement is also implemented for all other poles of the device 100, so that each pole of the device 100 comprises a Rogowski coil 400, so that a reliable current measurement is ensured for each pole of the device 100.
  • the embodiment shown in FIG. 2 comprises a device 480 for capacitive voltage measurement, which, in this embodiment, is arranged in the vicinity of the movable contact 195. This also makes it possible to carry out a reliable voltage measurement for each pole of the device, so that current and voltage measurements can be carried out safely and reliably together with the Rogowski coil.
  • FIG. 3 shows a foot contact 160, a Rogowski coil 400, a fitting piece 190 and a spring clip 194, as are used in a device according to FIG. 1 and FIG. 2, but can also be used in other embodiments.
  • the foot contact 160, the Rogowski coil 400 and the fitting piece 190 are designed and arranged in such a way that they lie close together and require little space, and are also held securely in their relative position by the spring clip 194. Details of the individual components are shown in particular below with reference to FIG. 4, which is an exploded view.
  • the foot contact 160 of the device comprises a partial area 162 which is flat and has a flat surface and from which an elevation 164 extends.
  • the elevation 164 is essentially cylindrical, but it is also possible to choose other shapes.
  • the Rogowski coil 400 is designed as a plate-shaped element which has a central opening 420 which is circular and thus adapted to the essentially cylindrical elevation 164 of the foot contact 160 of the device.
  • the Rogowski coil also includes connection lines 440, via which the signals of the Rogowski coil 400 can be passed on, in particular, to the evaluation unit.
  • the Rogowski coil 400 is provided with a heat-resistant, insulating varnish, so that galvanic isolation is ensured.
  • the fitting sleeve 190 is also essentially cylindrical, the inside diameter of the cylindrical interior being designed such that only suitable securing means can be used.
  • the spring clip 194 encloses the foot contact 160, the Rogowski coil 400 and the fitting sleeve 190, as shown in FIG. 3, so that all components are held together securely and error-free operation and an accurate measurement by means of the Rogowski coil 400 is ensured.
  • FIG. 5 schematically shows a further embodiment of a device ioo 'according to the invention, this device ioo' being a device for a busbar system.
  • the housing no 'of the device ioo' is, as can also be seen in FIG. 5, attached to three busbars 500 of a busbar system.
  • all output connections 140 are arranged on one side of the housing uo".
  • the embodiment of the device ioo 'shown in FIG. 5 also includes a shift lever 180.
  • This device ioo' is also designed as a three-pole device.
  • FIG. 6 schematically shows a cross section through the embodiment of the device ioo 'shown in FIG. 5, various components of the device ioo' being omitted for simplification.
  • the device ioo comprises a total of three fuses 320 ", each with a foot contact 122", each of which is brought into electrical contact with an associated foot contact i6o "of the device ioo".
  • the foot contact i6o 'of the device ioo' also comprises an essentially flat partial area and an elevation which engages in a central opening of the Rogowski coil 400 ", as is also shown and described in connection with the first embodiment, see in particular FIGS. 3 and Fig. 4, so that to avoid repetition reference is made to the above description.
  • all output ports 140 are attached to only one side of the device. This ensures that the output connections for connecting electrical devices (not shown) can be operated very easily by the user and in particular are very easily accessible, which is particularly important since the devices according to the invention are arranged in confined spaces and, if appropriate, are also arranged at a short distance from one another.

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  • Fuses (AREA)

Abstract

L'invention concerne un dispositif disjoncteur sectionneur ou un dispositif à fusible commutateur servant à recevoir au moins un fusible ou un bouchon de fusible pour un fusible. Le dispositif selon l'invention comprend un boîtier et au moins un raccord d'entrée et au moins un raccord de sortie servant au raccordement à au moins un appareil électrique. De manière préférée, des dispositifs à trois pôles sont prévus. Le dispositif selon l'invention comprend en outre un enroulement de Rogowski prévu sur un contact de base du dispositif.
PCT/EP2019/051754 2019-01-24 2019-01-24 Dispositif disjoncteur sectionneur et dispositif à fusible commutateur comprenant un fusible WO2020151826A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19701649.6A EP3915126B1 (fr) 2019-01-24 2019-01-24 Dispositif disjoncteur sectionneur et dispositif à fusible commutateur comprenant un fusible
PCT/EP2019/051754 WO2020151826A1 (fr) 2019-01-24 2019-01-24 Dispositif disjoncteur sectionneur et dispositif à fusible commutateur comprenant un fusible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/051754 WO2020151826A1 (fr) 2019-01-24 2019-01-24 Dispositif disjoncteur sectionneur et dispositif à fusible commutateur comprenant un fusible

Publications (1)

Publication Number Publication Date
WO2020151826A1 true WO2020151826A1 (fr) 2020-07-30

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PCT/EP2019/051754 WO2020151826A1 (fr) 2019-01-24 2019-01-24 Dispositif disjoncteur sectionneur et dispositif à fusible commutateur comprenant un fusible

Country Status (2)

Country Link
EP (1) EP3915126B1 (fr)
WO (1) WO2020151826A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19515923C2 (de) 1995-05-02 1997-05-28 Woehner Gmbh & Co Kg Sammelschienen-Adapter
EP2584577A1 (fr) 2011-10-21 2013-04-24 Klaus Bruchmann GmbH Agencement de sécurisation du commutateur à plusieurs pôles pour systèmes de barre collectrice
WO2014026702A1 (fr) * 2012-08-17 2014-02-20 Klaus Bruchmann Gmbh Groupe de construction pour un ensemble de fusibles de commutateurs avec dispositif de mesure et porte-fusible pour un groupe de construction ou un ensemble de fusibles de commutateurs
EP2985779A1 (fr) * 2014-08-13 2016-02-17 Pronutec, S.A.U. Base pour un porte-fusible
EP3016122A1 (fr) * 2014-10-31 2016-05-04 Klaus Bruchmann GmbH Système de disjoncteur multipolaire pour jeux de barres collectrices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19515923C2 (de) 1995-05-02 1997-05-28 Woehner Gmbh & Co Kg Sammelschienen-Adapter
EP2584577A1 (fr) 2011-10-21 2013-04-24 Klaus Bruchmann GmbH Agencement de sécurisation du commutateur à plusieurs pôles pour systèmes de barre collectrice
WO2014026702A1 (fr) * 2012-08-17 2014-02-20 Klaus Bruchmann Gmbh Groupe de construction pour un ensemble de fusibles de commutateurs avec dispositif de mesure et porte-fusible pour un groupe de construction ou un ensemble de fusibles de commutateurs
EP2985779A1 (fr) * 2014-08-13 2016-02-17 Pronutec, S.A.U. Base pour un porte-fusible
EP3016122A1 (fr) * 2014-10-31 2016-05-04 Klaus Bruchmann GmbH Système de disjoncteur multipolaire pour jeux de barres collectrices

Also Published As

Publication number Publication date
EP3915126B1 (fr) 2023-03-15
EP3915126A1 (fr) 2021-12-01

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