EP3192092A1 - Overvoltage protection in modular design - Google Patents

Overvoltage protection in modular design

Info

Publication number
EP3192092A1
EP3192092A1 EP15784267.5A EP15784267A EP3192092A1 EP 3192092 A1 EP3192092 A1 EP 3192092A1 EP 15784267 A EP15784267 A EP 15784267A EP 3192092 A1 EP3192092 A1 EP 3192092A1
Authority
EP
European Patent Office
Prior art keywords
base
operating state
pole
ignition circuit
situated
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.)
Granted
Application number
EP15784267.5A
Other languages
German (de)
French (fr)
Other versions
EP3192092B1 (en
Inventor
Jaromir Suchy
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.)
Saltek sro
Original Assignee
Saltek sro
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 Saltek sro filed Critical Saltek sro
Priority to SI201531688T priority Critical patent/SI3192092T1/en
Publication of EP3192092A1 publication Critical patent/EP3192092A1/en
Application granted granted Critical
Publication of EP3192092B1 publication Critical patent/EP3192092B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H9/14—Adaptation for built-in safety spark gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
    • H01R9/2641—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component with built-in overvoltage protection
    • 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
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/04—Housings
    • 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
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/06—Mounting arrangements for a plurality of overvoltage arresters
    • 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
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip

Definitions

  • the invention relates to overvoltage protection in a modular design, being a part of the area of electrical protection devices with at least one protection element which requires an ignition circuit for its correct performance, and specified for the personal protection of people, apparatus, machinery and metal structures against dangerous contact voltage, overvoltage or effects of stray electrical currents.
  • overvoltage protection designs mostly feature a first terminal clamp, second terminal clamp, and a protection element - usually a spark gap and ignition circuit that are connected in one construction unit. This is a compact and unreplaceable design considering the individual circuit components. The disadvantage is that if the ignition circuit is damaged, the whole product has to be replaced. Another disadvantage is that the product is difficult to inspect - the overvoltage protection must be disconnected.
  • Such design is, for example, presented in the documents WO2007065997 "DEVICE FOR PROTECTION AGAINST OVERVOLTAGES HAVING IMPROVED SAFETY AND CORRESPONDING METHOD OF MANUFACTURE” and DE102007012760 “Surge arrester, with rotational symmetric, insulated dischargers arranged within series installation housing in stack design, and electrical terminal clamps connected to dischargers over wire”.
  • the above- stated deficiencies are partially solved in another known design, in which the first terminal clamp and second terminal clamp are located in the base, whereas the protection element, ignition circuit and signalling of the operating state of the ignition circuit are located in a removable module connected to the base via a connecting system. In such design, inspections are easy to do by removing the removable module.
  • the advantage of such arrangement is that should the ignition circuit be damaged by overvoltage, the function of the overvoltage protection can be restored by replacing the removable module with the ignition circuit, without the need to replace the protection element, situated in the base.
  • the base can generally contain more than one protection element and it allows the connection of more than one removable module to the ignition circuit.
  • This overvoltage protection in a modular design in this advantageous design is provided with an optical status indicator of the ignition circuit operating state, located on the removable module, with the advantage on its upper surface.
  • the optical status indicator of the ignition circuit operating state is used for visual inspection and quick identification of the removable module with the non-functional ignition circuit or ignition circuit damaged by overvoltage.
  • This overvoltage protection in a modular design in this advantageous design features at least one connecting system signalling the operating state, on the side of the removable module linked to the primary part of the signalling of the operating state of the ignition circuit, on the side of the base linking to the secondary part of the operating state signalling, connected to the connecting point of the operating state signalling, with the advantage being in a two-pole or three -pole design, situated on one of the base sides, whereas the connecting system of the operating state signalling is provided with contact elements of the operating state signalling, with the advantage being in the two-pole or three -pole design, situated on the bottom surface of the removable module and the corresponding opposite contact elements of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on the upper part of the base.
  • Such arrangement deals with the remote operating state signalling of the ignition circuit and enables the removable module with a non-functional ignition circuit or the ignition circuit damaged by overvoltage to be located without any operating staff attending the place where the overvoltage protection is installed in the modular design. If the base is provided with more than one protection element and modified to the connection of more than one removable module with the ignition circuit, remote signalling of the operating state of the ignition circuit can be provided for every removable module, or just for some of them.
  • the advantageous design of this overvoltage protection in a modular design comprises such arrangement, i.e., the contacts of the ignition circuit and/or contact elements of the operating state signalling feature fixed or spring-loaded pins and the opposite contacts of the ignition circuit and/or opposite contact elements of the operating state signalling are created by plugs or contact surfaces.
  • the alternative design of the contacts and opposite contacts of the ignition circuit and/or contact elements and opposite contact elements of the operating state signalling are provided in such a manner that ensures reliable functionality of the main connecting system of the ignition circuit and/or connecting system of the operating state signalling.
  • This overvoltage protection in a modular design is arranged in such a manner that the protection element advantageously features a spark gap with symmetrically or asymmetrically arranged electrodes, or a multiple spark gap comprising at least two spark gaps connected in series, or from at least two gas discharge tubes arranged in series.
  • Such arrangement represents an alternative to the protection element situated in the base.
  • This overvoltage protection in a modular design is arranged in such a manner that the fastening of the base to the profiled bottom part is provided by an inversely profiled fastening part situated on the bottom side of the base, or fastening of the base to the flat surface is provided via a plate with openings, or the base is accommodated to the installation in a holder, the shape, dimensions and load capacity of which match the base.
  • This base installation in the advantageous design is provided to allow fastening of the base to a profiled or flat bottom surface, or the base is installed in a holder with minimum mounting requirements.
  • the removable module of this overvoltage protection in a modular design is fixed to the base in the connected condition with a demountable connection or fastening system, or a mechanical lock.
  • Figure 1 shows a block diagram of the electromechanical system of this overvoltage protection in a modular design with operating state signalling.
  • Fig. 2 shows this overvoltage protection in a modular design with the disconnected and remote removable module, the main connecting system of the ignition circuit, comprising three pairs of contacts and opposite contacts of the ignition circuit and the connecting system of the operating state signalling, comprising three pairs of contact elements of the signalling and opposite contact elements of the operating state signalling.
  • Fig. 3 shows the overvoltage protection base in a modular design with the main connecting system of the ignition circuit, comprising three opposite contacts of the ignition circuit, without the connecting system of the operating state signalling system.
  • Fig. 4 shows this overvoltage protection in a modular design with a connected removable module in a position to the side of the first terminal clamp.
  • Fig. 5 shows the overvoltage protection in a modular design with the connected removable module on the side of the second terminal clamp.
  • Fig. 6 shows the overvoltage protection in a modular design with a disconnected and separated removable module, the main connecting system of the ignition circuit comprising three pairs of contacts and opposite contacts of the ignition circuit and the connecting signalling system of the operating state, comprising the contact element of the signalling, linked to the opposite contact element of the operating state signalling via a mechanical bond.
  • Fig. 7 shows the removable module of the overvoltage protection in a modular design connected to the base, with the main connecting system of the ignition circuit comprising three contacts of the ignition circuit, without the connecting system of the operating state signalling.
  • Fig. 8 shows the removable module of the overvoltage protection in a modular design with its bottom surface facing upwards, featuring the main connecting system of the ignition circuit, comprising three contacts of the ignition circuit, without the connecting system of the operating state signalling.
  • Fig. 9 shows the removable module of the overvoltage protection in a modular design with its bottom surface facing upwards, featuring the main connecting system of the ignition circuit, comprising three contacts of the ignition circuit, with the connecting system of the operating state signalling, comprising three contact elements of the operating state signalling.
  • the overvoltage protection in a modular design according to Fig. 1 and 2 comprises an electromechanical arrangement containing the base 4 with the protection element 3, the removable module 5 with the ignition circuit 6 and the main connecting system 7 of the ignition circuit 6, consisting of the multi-pole set of contacts 8 and the associated opposite contacts 9 of the ignition circuit 6, whereas the contacts 8, with the advantage being in a three-pole metallic design, are situated on the bottom surface j_8 of the removable module 5, whereas the corresponding opposite contacts 9, with the advantage being in a three-pole metallic design, are situated on the upper part 19 of the base 4, and at the same time, the protection element 3 is with its one pole connected to at least one first terminal clamp I situated on one side of the base 4 and by its second pole it is connected to at least one second terminal clamp 2, situated on the opposite side of the base 4.
  • the three-pole design of the contacts 8 and opposite contacts 9 corresponds to the situation when the protection element 3 is represented by a spark gap with three symmetrically or asymmetrically arranged electrodes.
  • the base 4 can be equipped with a higher number of first terminal clamps 1 and second terminal clamps 2 to make the connection of conductors easy.
  • the base 4 can be provided with the advantage of more protection elements 3 and first terminal clamps j_ associated with each of them, and second terminal clamps 2.
  • One main connecting system 7 of the ignition circuit 6 and one removable module 5 with the ignition circuit 6 are then associated with each protection element 3.
  • the overvoltage protection in a modular design according to Fig. 1, 2, 4, 5, 6, 7 in the advantageous design is provided with an optical status indicator J of the operating state of the ignition circuit 6, located on the removable module 5, with the advantage being on its upper surface 17.
  • the optical status indicator 10 is used to evaluate the operating state of the ignition circuit 6 and to alert the operating staff of the need to replace the removable module 5 if it is not functional or damaged by overvoltage.
  • the overvoltage protection in a modular design according to Fig. 1 and 2 in the advantageous design is equipped with a connecting system 13 of the operating state signalling, which links to the primary part JJ_ on the side of the removable module 5 of the operating state signalling of the ignition circuit 6, on the side of the base 4 linking to the secondary part 12 of the operating state signalling, connected to the connecting point 16 of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on one side of the base 4, whereas the connecting system J_3 of the operating state signalling is equipped with contact elements 14 of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on the bottom surface 1_8 of the removable module 5 and the corresponding opposite contact elements 1_5 of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on the upper part 19 of the base 4.
  • the connecting system 13 of the operating state signalling is used to transfer information on the operating state of the ignition circuit 6 from the removable module 5 to the connection point 16 of the operating state signalling on the base 4. It can be provided with contact elements 14 and opposite contact elements 15 of the operating state signalling in a metallic design according to Fig. 2, or in a mechanical design according to Fig. 6.
  • the connecting system 13 of the operating state signalling subject to Fig. 1 can be generally implemented also as contact-less or wireless, with use of the information transfer through a short radius electromagnetic field.
  • the primary part 1 1 of the operating state signalling works as a transmitter and/or receiver of the carrier frequency
  • the contact element 14 works as a transmitting and/or receiving antenna
  • the secondary part 12 of the operating state signalling works as a receiver and/or transmitter of the carrier frequency
  • the opposite contact element 15 works as a receiving and/or transmitting antenna.
  • Radio chips with a short radius based on RFID technology can also be considered, or so-called "Radio Frequency Identification", or NFC, "Near field communication", or transfer technologies using the optical or infrared part of the electromagnetic spectrum.
  • the chips can be made in both an active design comprising its own source of supply and a passive design without its own supply, i.e., suitable for installation into the removable module 5. Both stated technologies make at least one-way communication possible between the end equipment, which is sufficient for the specific purpose.
  • the two-pole design of the metallic contact elements 14 and opposite contact elements 15 enables only signalling of basic operating information on the state of the ignition circuit 6 if connected galvanically, i.e., whether it is in operating or failure/defective condition; it works similarly in the mechanical design. Multi-condition transfer of information can be used in the three-pole design of the metallic contact elements 14 and opposite contact elements 15 in their galvanic connection, or in the use of radio chip technology.
  • the base 4 is provided with more protection elements 3 and modified for connecting the required number of removable modules 5 with ignition circuits 6, all removable modules 5 or just some of them can be equipped with the primary parts VI of the operating state signalling of the ignition circuit 6 and the connecting systems 13 of the operating state signalling linked to them.
  • each connecting system 13 of the operating state signalling can be connected to its own secondary part 12 of the operating state signalling on the side of the base (4), or one common secondary part 12 of the operating state signalling for all connecting systems 13 of the operating state signalling can be installed.
  • the connection point 16 of the operating state signalling can be provided as individual, i.e., dedicated to the specific removable module 5, or common for the whole group of removable modules 5.
  • the overvoltage protection in a modular design according to Fig. 1 and 2, 3, 7, 8, 9 in the advantageous design comprising the contacts 8 of the ignition circuit 6 and/or contact elements 14 of the operating state signalling represented by fixed or flexible spring-loaded pins and the opposite contacts 9 of the ignition circuit 6 and/or the opposite contact elements 15 of the operating state signalling feature plugs or contact surfaces.
  • the main connecting system 7 of the ignition circuit 6 and/or connecting system 13 of the operating state signalling can either comprise fixed pins and associated plugs as shown in Fig. 2, 3, 7, 8, 9 and/or spring-loaded pins and the surface contacts associated with them.
  • the protection element 3 comprises one or more electronic elements, characterised by the ignition circuit 6 which is necessary for correct functioning.
  • the overvoltage protection in a modular design according to Fig. 2 to 6 shows the base 4 fastened to the profiled surface using an inversely profiled fastening part 20 situated on the bottom side of the base 4, or the fastening of the base 4 on a flat surface using a plate with openings, or the base 4 is accommodated to installation in a holder, whose shape, dimensions and load capacity correspond to the base 4.
  • the overvoltage protection is installed by slipping the base 4 onto an appropriately shaped profile, usually a mounting bar. If the bottom surface is flat, the base 4 is fixed to it using demountable connections, e.g., screws or bolts inserted into the openings in the plate situated on the bottom side of the base 4.
  • the bottom side of the base 4 can be provided with blades, specified for inserting into the blade-shaped bottom part.
  • the holder can also be provided in a "U" shape, whose flexible arms embrace the sides of the base 4 and fix it in the locked condition using interlocks.
  • the overvoltage protection in a modular design in the advantageous design comprising the fixing of the removable module 5 to the base 4 in the connected condition features a dismountable connection, or fastening system, or mechanical lock.
  • Fixing the removable module 5 to the base 4 in the connected condition is necessary especially in situations when the main connecting system 7 of the ignition circuit 6 and, at the same time, the connecting system 13 of the operating state signalling feature spring-loaded pins and the corresponding surface contacts. In this instance, the removable module 5 is pushed away from the base 4.
  • the spring-loaded pins are provided in one of the connecting systems and the second is provided with fixed pins. The flexible pins push the removable module 5 away from the base 4, which can lead to mechanical damage, or bending of the fixed pins.
  • Fixing the removable module 5 to the base 4 in the connected condition features in the simplest design a demountable connection comprising at least one screw driven through the removable module 5 and screwed into the base 4. Another option is the use of fastening of the system, e.g., by a flexible clamp, metallic with the advantage. Finally, fixing of the removable module 5 to the base 4 in the connected condition can be provided with the help of a mechanical lock, featuring for example interlocks.
  • the overvoltage protection in a modular design according to this invention is a product that can be used where it is necessary to ensure the protection of people, equipment, machinery and metallic constructions against dangerous contact voltage, overvoltage, and protection from the effects of electrical stray currents. In comparison with known products it allows the replacement of a damaged or non-functional ignition circuit without having to replace the protection element at the same time.

Abstract

This overvoltage protection in a modular design features an electromechanical arrangement containing a base (4) with at least one protection element (3), at least one removable module (5) with an ignition circuit (6) and at least one main connecting system (7) of the ignition circuit (6), consisting of a multi-pole set of contacts (8) and the corresponding opposite contacts (9) of the ignition circuit (6), whereas the contacts (8), with the advantage being in the three-pole metallic arrangement, are situated on the bottom surface (18) of the removable module (5), whereas the corresponding opposite contacts (9), with the advantage being in the three-pole metallic design, are situated on the upper part (19) of the base (4), and at the same time, each protection element (3) is from its one pole connected to at least one first terminal clamp (1) associated with it, situated on one side of the base (4), and from its second pole it is connected to at least one second terminal clamp (2) associated with it, situated on the opposite side of the base (4).

Description

Overvoltage protection in modular design
Technical Field
The invention relates to overvoltage protection in a modular design, being a part of the area of electrical protection devices with at least one protection element which requires an ignition circuit for its correct performance, and specified for the personal protection of people, apparatus, machinery and metal structures against dangerous contact voltage, overvoltage or effects of stray electrical currents.
Current state of technology
Currently known overvoltage protection designs mostly feature a first terminal clamp, second terminal clamp, and a protection element - usually a spark gap and ignition circuit that are connected in one construction unit. This is a compact and unreplaceable design considering the individual circuit components. The disadvantage is that if the ignition circuit is damaged, the whole product has to be replaced. Another disadvantage is that the product is difficult to inspect - the overvoltage protection must be disconnected. Such design is, for example, presented in the documents WO2007065997 "DEVICE FOR PROTECTION AGAINST OVERVOLTAGES HAVING IMPROVED SAFETY AND CORRESPONDING METHOD OF MANUFACTURE" and DE102007012760 "Surge arrester, with rotational symmetric, insulated dischargers arranged within series installation housing in stack design, and electrical terminal clamps connected to dischargers over wire". The above- stated deficiencies are partially solved in another known design, in which the first terminal clamp and second terminal clamp are located in the base, whereas the protection element, ignition circuit and signalling of the operating state of the ignition circuit are located in a removable module connected to the base via a connecting system. In such design, inspections are easy to do by removing the removable module. However, the expensive protection element has to be replaced together with the damaged ignition circuit, so the disadvantage remains. Another technical disadvantage are strict requirements for the connecting system between the base and removable module, which must transfer great stress from the pulse currents. Examples of such an arrangement are shown in the documents EP1900072 "PLUGGABLE SURGE ARRESTER COMPRISING ONE OR SEVERAL OVERVOLTAGE ELEMENTS" and DE202004006227 "Uberspannungsschutzgerat".
Another example of a modular concept of overvoltage protection is shown in document DEI 02008031200 ©Surge protection device for single- or multi-core signal circuit, with a base part fastened to a mounting rail, and two plugging parts, each comprising two terminal clamps for the respective electrical conductors". The construction is designed to easily increase the number of protected communication channels or lines. The base features part fastening to the bottom of the profiled bar, the upper part of the base is modified for the connection of removable modules that contain overvoltage protection and other connecting parts. This allows more removable modules to be connected above each other, whereas the last top removable module contains optical signalling of the operating state of the overvoltage protection devices, including the possibility of remote signalling of the operating state of the overvoltage protection devices. This solution is primarily specified for overvoltage protection of communication channels or lines, hence it does not use a power protection element of the spark gap type, which would require an ignition circuit for it to function.
An example of products containing more than one protection element with the relevant ignition circuit is given in the documents DE10058977 "Mehrpoliger stossstromfester tiberspannungsableiter" and DE 10125941 "Multipole electrical surge -proof arrester with arrester capsule". The basic problem, i.e., that the ignition circuit cannot be separated from the relevant protection element, also remains unresolved in these arrangements, so the replacement of the damaged ignition circuit cannot be carried out without simultaneous replacement of the undamaged protection element.
Summary of Invention The aforesaid disadvantages are eliminated to a large extent by overvoltage protection in a modular design according to this invention, created by an electromechanical arrangement that features a base with at least one protection element and at least one removable module with an ignition circuit and, finally, at least one main connecting system of the ignition circuit, consisting of a multi-pole set of contacts and corresponding opposite contacts of the ignition circuit, whereas the contacts, with the advantage of being in a three-pole metallic design, are situated on the bottom surface of the removable module, whereas the corresponding opposite contacts, with the advantage of being in a three-pole metallic design, are situated on the upper part of the base, and simultaneously, each protection element is connected by one of its poles to at least one assigned first terminal clamp situated on one side of the base and its second pole is connected to at least one assigned second terminal clamp, situated on the opposite side of the base.
The advantage of such arrangement is that should the ignition circuit be damaged by overvoltage, the function of the overvoltage protection can be restored by replacing the removable module with the ignition circuit, without the need to replace the protection element, situated in the base. The base can generally contain more than one protection element and it allows the connection of more than one removable module to the ignition circuit.
This overvoltage protection in a modular design in this advantageous design is provided with an optical status indicator of the ignition circuit operating state, located on the removable module, with the advantage on its upper surface.
The optical status indicator of the ignition circuit operating state is used for visual inspection and quick identification of the removable module with the non-functional ignition circuit or ignition circuit damaged by overvoltage.
This overvoltage protection in a modular design in this advantageous design features at least one connecting system signalling the operating state, on the side of the removable module linked to the primary part of the signalling of the operating state of the ignition circuit, on the side of the base linking to the secondary part of the operating state signalling, connected to the connecting point of the operating state signalling, with the advantage being in a two-pole or three -pole design, situated on one of the base sides, whereas the connecting system of the operating state signalling is provided with contact elements of the operating state signalling, with the advantage being in the two-pole or three -pole design, situated on the bottom surface of the removable module and the corresponding opposite contact elements of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on the upper part of the base.
Such arrangement deals with the remote operating state signalling of the ignition circuit and enables the removable module with a non-functional ignition circuit or the ignition circuit damaged by overvoltage to be located without any operating staff attending the place where the overvoltage protection is installed in the modular design. If the base is provided with more than one protection element and modified to the connection of more than one removable module with the ignition circuit, remote signalling of the operating state of the ignition circuit can be provided for every removable module, or just for some of them.
The advantageous design of this overvoltage protection in a modular design comprises such arrangement, i.e., the contacts of the ignition circuit and/or contact elements of the operating state signalling feature fixed or spring-loaded pins and the opposite contacts of the ignition circuit and/or opposite contact elements of the operating state signalling are created by plugs or contact surfaces.
In this arrangement, the alternative design of the contacts and opposite contacts of the ignition circuit and/or contact elements and opposite contact elements of the operating state signalling are provided in such a manner that ensures reliable functionality of the main connecting system of the ignition circuit and/or connecting system of the operating state signalling.
This overvoltage protection in a modular design is arranged in such a manner that the protection element advantageously features a spark gap with symmetrically or asymmetrically arranged electrodes, or a multiple spark gap comprising at least two spark gaps connected in series, or from at least two gas discharge tubes arranged in series.
Such arrangement represents an alternative to the protection element situated in the base.
This overvoltage protection in a modular design is arranged in such a manner that the fastening of the base to the profiled bottom part is provided by an inversely profiled fastening part situated on the bottom side of the base, or fastening of the base to the flat surface is provided via a plate with openings, or the base is accommodated to the installation in a holder, the shape, dimensions and load capacity of which match the base.
This base installation in the advantageous design is provided to allow fastening of the base to a profiled or flat bottom surface, or the base is installed in a holder with minimum mounting requirements.
The removable module of this overvoltage protection in a modular design is fixed to the base in the connected condition with a demountable connection or fastening system, or a mechanical lock.
Such arrangement deals with the situation in which the spring-loaded pins and contact surfaces form the main connecting system of the ignition circuit and/or connecting system of the operating state signalling.
Brief Description of Drawings
The invention will be explained in detail using drawings, in which Figure 1 shows a block diagram of the electromechanical system of this overvoltage protection in a modular design with operating state signalling.
Fig. 2 shows this overvoltage protection in a modular design with the disconnected and remote removable module, the main connecting system of the ignition circuit, comprising three pairs of contacts and opposite contacts of the ignition circuit and the connecting system of the operating state signalling, comprising three pairs of contact elements of the signalling and opposite contact elements of the operating state signalling. Fig. 3 shows the overvoltage protection base in a modular design with the main connecting system of the ignition circuit, comprising three opposite contacts of the ignition circuit, without the connecting system of the operating state signalling system.
Fig. 4 shows this overvoltage protection in a modular design with a connected removable module in a position to the side of the first terminal clamp.
Fig. 5 shows the overvoltage protection in a modular design with the connected removable module on the side of the second terminal clamp.
Fig. 6 shows the overvoltage protection in a modular design with a disconnected and separated removable module, the main connecting system of the ignition circuit comprising three pairs of contacts and opposite contacts of the ignition circuit and the connecting signalling system of the operating state, comprising the contact element of the signalling, linked to the opposite contact element of the operating state signalling via a mechanical bond.
Fig. 7 shows the removable module of the overvoltage protection in a modular design connected to the base, with the main connecting system of the ignition circuit comprising three contacts of the ignition circuit, without the connecting system of the operating state signalling.
Fig. 8 shows the removable module of the overvoltage protection in a modular design with its bottom surface facing upwards, featuring the main connecting system of the ignition circuit, comprising three contacts of the ignition circuit, without the connecting system of the operating state signalling. Fig. 9 shows the removable module of the overvoltage protection in a modular design with its bottom surface facing upwards, featuring the main connecting system of the ignition circuit, comprising three contacts of the ignition circuit, with the connecting system of the operating state signalling, comprising three contact elements of the operating state signalling.
Examples of the technical invention's implementation The overvoltage protection in a modular design according to Fig. 1 and 2 comprises an electromechanical arrangement containing the base 4 with the protection element 3, the removable module 5 with the ignition circuit 6 and the main connecting system 7 of the ignition circuit 6, consisting of the multi-pole set of contacts 8 and the associated opposite contacts 9 of the ignition circuit 6, whereas the contacts 8, with the advantage being in a three-pole metallic design, are situated on the bottom surface j_8 of the removable module 5, whereas the corresponding opposite contacts 9, with the advantage being in a three-pole metallic design, are situated on the upper part 19 of the base 4, and at the same time, the protection element 3 is with its one pole connected to at least one first terminal clamp I situated on one side of the base 4 and by its second pole it is connected to at least one second terminal clamp 2, situated on the opposite side of the base 4.
The three-pole design of the contacts 8 and opposite contacts 9 corresponds to the situation when the protection element 3 is represented by a spark gap with three symmetrically or asymmetrically arranged electrodes. The base 4 can be equipped with a higher number of first terminal clamps 1 and second terminal clamps 2 to make the connection of conductors easy. The base 4 can be provided with the advantage of more protection elements 3 and first terminal clamps j_ associated with each of them, and second terminal clamps 2. One main connecting system 7 of the ignition circuit 6 and one removable module 5 with the ignition circuit 6 are then associated with each protection element 3.
The overvoltage protection in a modular design according to Fig. 1, 2, 4, 5, 6, 7 in the advantageous design is provided with an optical status indicator J of the operating state of the ignition circuit 6, located on the removable module 5, with the advantage being on its upper surface 17.
The optical status indicator 10 is used to evaluate the operating state of the ignition circuit 6 and to alert the operating staff of the need to replace the removable module 5 if it is not functional or damaged by overvoltage.
The overvoltage protection in a modular design according to Fig. 1 and 2 in the advantageous design is equipped with a connecting system 13 of the operating state signalling, which links to the primary part JJ_ on the side of the removable module 5 of the operating state signalling of the ignition circuit 6, on the side of the base 4 linking to the secondary part 12 of the operating state signalling, connected to the connecting point 16 of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on one side of the base 4, whereas the connecting system J_3 of the operating state signalling is equipped with contact elements 14 of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on the bottom surface 1_8 of the removable module 5 and the corresponding opposite contact elements 1_5 of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on the upper part 19 of the base 4. The connecting system 13 of the operating state signalling is used to transfer information on the operating state of the ignition circuit 6 from the removable module 5 to the connection point 16 of the operating state signalling on the base 4. It can be provided with contact elements 14 and opposite contact elements 15 of the operating state signalling in a metallic design according to Fig. 2, or in a mechanical design according to Fig. 6.
The connecting system 13 of the operating state signalling subject to Fig. 1 can be generally implemented also as contact-less or wireless, with use of the information transfer through a short radius electromagnetic field. The primary part 1 1 of the operating state signalling works as a transmitter and/or receiver of the carrier frequency, the contact element 14 works as a transmitting and/or receiving antenna, the secondary part 12 of the operating state signalling works as a receiver and/or transmitter of the carrier frequency, and the opposite contact element 15 works as a receiving and/or transmitting antenna. Radio chips with a short radius based on RFID technology can also be considered, or so-called "Radio Frequency Identification", or NFC, "Near field communication", or transfer technologies using the optical or infrared part of the electromagnetic spectrum. Thanks to RFID and NFC technology the chips can be made in both an active design comprising its own source of supply and a passive design without its own supply, i.e., suitable for installation into the removable module 5. Both stated technologies make at least one-way communication possible between the end equipment, which is sufficient for the specific purpose.
The two-pole design of the metallic contact elements 14 and opposite contact elements 15 enables only signalling of basic operating information on the state of the ignition circuit 6 if connected galvanically, i.e., whether it is in operating or failure/defective condition; it works similarly in the mechanical design. Multi-condition transfer of information can be used in the three-pole design of the metallic contact elements 14 and opposite contact elements 15 in their galvanic connection, or in the use of radio chip technology.
If the base 4 is provided with more protection elements 3 and modified for connecting the required number of removable modules 5 with ignition circuits 6, all removable modules 5 or just some of them can be equipped with the primary parts VI of the operating state signalling of the ignition circuit 6 and the connecting systems 13 of the operating state signalling linked to them. On the side of the base 4 each connecting system 13 of the operating state signalling can be connected to its own secondary part 12 of the operating state signalling on the side of the base (4), or one common secondary part 12 of the operating state signalling for all connecting systems 13 of the operating state signalling can be installed. In relation to the used design, the connection point 16 of the operating state signalling can be provided as individual, i.e., dedicated to the specific removable module 5, or common for the whole group of removable modules 5.
The overvoltage protection in a modular design according to Fig. 1 and 2, 3, 7, 8, 9 in the advantageous design, comprising the contacts 8 of the ignition circuit 6 and/or contact elements 14 of the operating state signalling represented by fixed or flexible spring-loaded pins and the opposite contacts 9 of the ignition circuit 6 and/or the opposite contact elements 15 of the operating state signalling feature plugs or contact surfaces.
The main connecting system 7 of the ignition circuit 6 and/or connecting system 13 of the operating state signalling can either comprise fixed pins and associated plugs as shown in Fig. 2, 3, 7, 8, 9 and/or spring-loaded pins and the surface contacts associated with them.
The overvoltage protection in a modular design according to Fig. 1, in the design comprising the protection element 3 which is advantageously created by a spark gap with symmetrically or asymmetrically arranged electrodes, or a multi-spark gap comprising at least two spark gaps connected in series, or at least two gas discharge tubes in series. The protection element 3 comprises one or more electronic elements, characterised by the ignition circuit 6 which is necessary for correct functioning.
The overvoltage protection in a modular design according to Fig. 2 to 6, shows the base 4 fastened to the profiled surface using an inversely profiled fastening part 20 situated on the bottom side of the base 4, or the fastening of the base 4 on a flat surface using a plate with openings, or the base 4 is accommodated to installation in a holder, whose shape, dimensions and load capacity correspond to the base 4.
In the basic design, the overvoltage protection is installed by slipping the base 4 onto an appropriately shaped profile, usually a mounting bar. If the bottom surface is flat, the base 4 is fixed to it using demountable connections, e.g., screws or bolts inserted into the openings in the plate situated on the bottom side of the base 4. The bottom side of the base 4 can be provided with blades, specified for inserting into the blade-shaped bottom part. The holder can also be provided in a "U" shape, whose flexible arms embrace the sides of the base 4 and fix it in the locked condition using interlocks.
The overvoltage protection in a modular design in the advantageous design comprising the fixing of the removable module 5 to the base 4 in the connected condition features a dismountable connection, or fastening system, or mechanical lock. Fixing the removable module 5 to the base 4 in the connected condition is necessary especially in situations when the main connecting system 7 of the ignition circuit 6 and, at the same time, the connecting system 13 of the operating state signalling feature spring-loaded pins and the corresponding surface contacts. In this instance, the removable module 5 is pushed away from the base 4. A similar situation occurs if the spring-loaded pins are provided in one of the connecting systems and the second is provided with fixed pins. The flexible pins push the removable module 5 away from the base 4, which can lead to mechanical damage, or bending of the fixed pins.
Fixing the removable module 5 to the base 4 in the connected condition features in the simplest design a demountable connection comprising at least one screw driven through the removable module 5 and screwed into the base 4. Another option is the use of fastening of the system, e.g., by a flexible clamp, metallic with the advantage. Finally, fixing of the removable module 5 to the base 4 in the connected condition can be provided with the help of a mechanical lock, featuring for example interlocks. Industrial Applicability
The overvoltage protection in a modular design according to this invention is a product that can be used where it is necessary to ensure the protection of people, equipment, machinery and metallic constructions against dangerous contact voltage, overvoltage, and protection from the effects of electrical stray currents. In comparison with known products it allows the replacement of a damaged or non-functional ignition circuit without having to replace the protection element at the same time.
List of symbols;
1. first terminal clamp
2. second terminal clamp
3. protection element
4. base
5. removable module
6. ignition circuit
7. main connecting system
8. contact
9. opposite contact
10. optical status indicator
11. primary part of the signalling
12. secondary part of the signalling
13. connecting system of the signalling
14. contact element of the signalling
15. opposite contact element of the signalling
16. connecting point of the signalling
17. upper surface
18. bottom surface
19. upper part
20. fastening part

Claims

PATENT CLAIMS
An overvoltage protection in a modular design, comprising an electromechanical arrangement containing the base (4) with at least one protection element (3), at least one removable module (5) with the ignition circuit (6) and at least one main connecting system (7) of the ignition circuit (6), consisting of a multi-pole set of contacts (8) and the corresponding opposite contacts (9) of the ignition circuit (6), whereas the contacts (8), with the advantage being in three-pole metallic design, are situated on the bottom surface (18) of the removable module (5), whereas the corresponding opposite contacts (9), with the advantage being in the three-pole metallic design, are located on the upper part (19) of the base (4), and simultaneously, each protection element (3) is from its one pole connected to at least one associated terminal clamp (1) situated on one side of the base (4) and from its second pole connected to at least one associated second terminal clamp (2), situated on the opposite side of the base (4).
The overvoltage protection in a modular design subject to Claim 1, comprising an optical status indicator (10) of the operating state of the ignition circuit (6), located on the removable module (5), with the advantage being on its upper surface (17).
The overvoltage protection in a modular design according to Claim 1 or 2, comprising at least one connecting system (13) of the operating state signalling, on the side of the removable module (5) linking to the primary part (11) of the operating state signalling ignition circuit (6), on the side of the base (4) linking to the secondary part (12) of the operating state signalling, connected to the connecting point (16) of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on one side of the base (4), whereas the connecting system (13) of the operating state signalling is provided with contact elements (14) of the operating state signalling, with the advantage being in the two-pole or three -pole design, situated on the bottom surface (18) of the removable module (5) and the corresponding opposite contact elements (15) of the operating state signalling, with the advantage being in the two-pole or three-pole design, situated on the upper part (19) of the base (4).
The overvoltage protection in a modular design according to Claims 1 to 3, comprising contacts (8) of the ignition circuit (6) and/or contact elements (14) of the operating state signalling are represented by fixed or spring-loaded pins, and the opposite contacts (9) of the ignition circuit (6) and/or opposite contact elements (15) of the operating state signalling are represented by plugs or contact surfaces. O 2016/037596 " ίΔ ' PCT/CZ2015/050004
The overvoltage protection in a modular design according to Claims 1 to 4, comprising a protection element (3) is with the advantage created by the spark gap with symmetrically or asymmetrically arranged electrodes, or a multi-spark gap comprising at least two spark gaps connected in series or at least two gas discharge tubes in series.
The overvoltage protection in a modular design according to Claims 1 to 5, comprising fastening of the base (4) to the profiled surface bar features an inversely profiled fastening part (20) situated on the bottom side of the base (4), or fastening of the base (4) to the flat surface using a plate with openings, or the base (4) is accommodated for the installation into a holder whose shape, dimensions and capacity match those of the base (4).
The overvoltage protection in a modular design according to Claims 1 to 6, comprising fixing of the removable module (5) to the base (4) in the connected status, features a demountable connection, or fastening system, or mechanical lock.
EP15784267.5A 2014-09-08 2015-09-04 Overvoltage protection in modular design Active EP3192092B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201531688T SI3192092T1 (en) 2014-09-08 2015-09-04 Overvoltage protection in modular design

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2014-611A CZ2014611A3 (en) 2014-09-08 2014-09-08 Overvoltage protection in modular design
PCT/CZ2015/050004 WO2016037596A1 (en) 2014-09-08 2015-09-04 Overvoltage protection in modular design

Publications (2)

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EP3192092A1 true EP3192092A1 (en) 2017-07-19
EP3192092B1 EP3192092B1 (en) 2021-07-14

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EP (1) EP3192092B1 (en)
CN (1) CN106688069B (en)
AU (1) AU2015315965A1 (en)
CZ (1) CZ2014611A3 (en)
ES (1) ES2887399T3 (en)
RU (1) RU180981U1 (en)
SI (1) SI3192092T1 (en)
WO (1) WO2016037596A1 (en)
ZA (1) ZA201701819B (en)

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EP4091228A4 (en) * 2020-03-19 2024-02-21 Schneider Electric Usa Inc Energy reducing key for electronic trip units
CN114883824B (en) * 2022-07-11 2022-10-21 宁波速普电子有限公司 Wiring terminal base

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Also Published As

Publication number Publication date
CN106688069B (en) 2018-12-28
WO2016037596A1 (en) 2016-03-17
CN106688069A (en) 2017-05-17
CZ2014611A3 (en) 2016-03-16
EP3192092B1 (en) 2021-07-14
ZA201701819B (en) 2018-05-30
ES2887399T3 (en) 2021-12-22
SI3192092T1 (en) 2021-11-30
RU180981U1 (en) 2018-07-03
AU2015315965A1 (en) 2017-04-06

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