EP3971933A1 - Überstromauslöser und schutzschalter mit überstromauslöser - Google Patents

Überstromauslöser und schutzschalter mit überstromauslöser Download PDF

Info

Publication number
EP3971933A1
EP3971933A1 EP20805181.3A EP20805181A EP3971933A1 EP 3971933 A1 EP3971933 A1 EP 3971933A1 EP 20805181 A EP20805181 A EP 20805181A EP 3971933 A1 EP3971933 A1 EP 3971933A1
Authority
EP
European Patent Office
Prior art keywords
fixed
core
fixed core
movable
tripping device
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
EP20805181.3A
Other languages
English (en)
French (fr)
Other versions
EP3971933A4 (de
EP3971933B1 (de
Inventor
Hiroshi Sasaki
Yasuhiro KAMINO
Yuta Sagara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP3971933A1 publication Critical patent/EP3971933A1/de
Publication of EP3971933A4 publication Critical patent/EP3971933A4/de
Application granted granted Critical
Publication of EP3971933B1 publication Critical patent/EP3971933B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • H01H50/22—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil wherein the magnetic circuit is substantially closed
    • H01H2050/225—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil wherein the magnetic circuit is substantially closed with yoke and armature formed by identical stacked laminates, e.g. punched in one and the same tool
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element

Definitions

  • the present disclosure relates to an overcurrent tripping device and a circuit breaker using the same.
  • An overcurrent tripping device is a device that is incorporated into a circuit breaker and that detects an overcurrent flowing through a main circuit of the circuit breaker and actuates a tripping mechanism of the circuit breaker in a closed state.
  • a specific overcurrent tripping device includes, for example, an electromagnet for detecting a fault current flowing through the main circuit, an output shaft for transmitting a drive force outputted from the electromagnet, to the tripping mechanism of the circuit breaker, a return spring for setting a current scale value (current prescribed value to start tripping operation) of the tripping device, and a scale device for adjusting the current scale value by manipulating the compression amount of the return spring to change the spring load.
  • the overcurrent tripping device As operation of the overcurrent tripping device, it is indicated that when an overcurrent flows through a conductor penetrating the center of the electromagnet, a magnetic flux is generated in the electromagnet, a movable core forming the electromagnet is attracted upward, and a shaft connected to the movable core moves upward to drive a retention latch to separate the holding force that brings the circuit breaker into a closed state, from a movable contact (see, for example, Patent Document 1). Due to this separation, the circuit breaker shifts to an opened state.
  • Patent Document 1 European Patent Publication No. 2431992
  • Patent Document 1 it is possible to detect an overcurrent flowing through the main circuit of the circuit breaker, and actuate the tripping mechanism of the circuit breaker in a closed state.
  • the mechanism included in the overcurrent tripping device in order to actuate the tripping mechanism is provided outside the electromagnet, there is a problem that the size of the overcurrent tripping device is increased.
  • the present disclosure has been made to solve the above problems, and an object of the present disclosure is to obtain an overcurrent tripping device that shortens a tripping operation time for a fault current and that has a reduced size, and a circuit breaker using the same.
  • An overcurrent tripping device which detects an overcurrent flowing through a main circuit of a circuit breaker and actuates a tripping mechanism of the circuit breaker in a closed state
  • the overcurrent tripping device including: a conductor connected to the main circuit; a fixed core surrounding the conductor along a magnetic field generated around the conductor by a current flowing through the conductor, the fixed core being partially open so as to obliquely cut the magnetic field; a movable core having a magnetic gap between the fixed core and the movable core at a position where the fixed core is open, the movable core being disposed such that the movable core is movable in a direction in which the magnetic gap is reduced by an electromagnetic force generated when an overcurrent flows through the conductor; a rod penetrating an inside of the fixed core through a location where the fixed core is open and a portion of the fixed core facing the location where the fixed core is open, the rod being linked to the tripping mechanism at an
  • the fixed core has a gap perpendicular to a direction in which the conductor extends, and, in the gap, a plate-shaped fixed core guide provided with a groove along a direction in which the rod extends is fixed and the lever is disposed.
  • the movable core has a gap perpendicular to the direction in which the conductor extends, and a plate-shaped movable core guide which is partially interposed in the groove and slides in the direction in which the rod extends is fixed in the gap.
  • a tripping operation time for a fault current can be shortened, and size reduction can be achieved.
  • FIG. 1 is a front view of an overcurrent tripping device 100
  • FIG. 2 is a plan view of the overcurrent tripping device 100
  • FIG. 3 is a perspective view showing a part of the overcurrent tripping device 100
  • FIG. 4 is a perspective view of the overcurrent tripping device 100.
  • the overcurrent tripping device 100 is a device that is incorporated into a circuit breaker 200 described later and that moves a rod 5, which is fixed to a movable core 2, to actuate a tripping mechanism of the circuit breaker 200 in a closed state when an overcurrent flows through a main circuit of the circuit breaker 200.
  • the configuration of the overcurrent tripping device 100 will be described.
  • the overcurrent tripping device 100 includes: two conductors 3 which are connected to the main circuit (not shown) of the circuit breaker 200; a fixed core 1 which surrounds the conductors 3 along a magnetic field generated around the conductors 3 by a current flowing through the conductors 3 and which is partially open so as to obliquely cut the magnetic field; and the movable core 2 which has a magnetic gap 4 between the fixed core 1 and the movable core 2 at the position where the fixed core 1 is open and which is disposed such that the movable core 2 is movable in the direction in which the magnetic gap 4 is reduced, by an electromagnetic force generated when an overcurrent flows through the conductors 3.
  • a magnetic circuit is formed by the fixed core 1 and the movable core 2.
  • the fixed core 1 is a stacked core and includes stacked magnetic steel sheets 1b.
  • Four fixed core pins 1a penetrate the magnetic steel sheets 1b in the direction in which the magnetic steel sheets 1b are stacked, to fix the magnetic steel sheets 1b together.
  • the movable core 2 is also a stacked core and includes stacked magnetic steel sheets 2b, and two movable core pins 2a penetrate the magnetic steel sheets 2b in the direction in which the magnetic steel sheets 2b are stacked, to fix the magnetic steel sheets 2b together.
  • the number of fixed core pins 1a and the number of movable core pins 2a are not limited to these numbers as long as the magnetic steel sheets 1b and the magnetic steel sheets 2b can be fixed.
  • the fixed core 1 and the movable core 2 are preferably composed of stacked cores in order to suppress eddy currents, but the configurations thereof are not limited to the stacked configurations, and the fixed core 1 and the movable core 2 may each be composed of a block made of a ferromagnetic material such as iron-based materials.
  • Each conductor 3 is made of, for example, copper.
  • a main circuit current of the circuit breaker 200 flows through each conductor 3 to induce an electromagnetic force in the magnetic circuit.
  • FIG. 1 shows an example in which the two conductors 3 are disposed and the rod 5 described later is moveable therebetween, but the present disclosure is not limited thereto, and the rod 5 may be disposed next to one conductor 3.
  • the rod 5 is provided so as to extend in a bar shape, be movable in an axial direction thereof, and penetrate the inside of the fixed core 1 through the location where the fixed core 1 is open and a portion of the fixed core 1 facing the location where the fixed core 1 is open.
  • the rod 5 is linked to a retention latch (not shown) connected to a tripping mechanism included in the circuit breaker 200, at an end projecting to the outside of the fixed core 1.
  • the rod 5 is fitted with the movable core 2 to be fixed to the movable core 2.
  • the rod 5 is made of a non-ferromagnetic material such as stainless steel, brass, and aluminum. This is because such a material does not affect the magnetic circuit included in the overcurrent tripping device 100.
  • the fixed core 1 has gaps perpendicular to the direction in which the conductors 3 extend, and a plate-shaped fixed core guide 6 is fixed in each of the gaps.
  • the fixed core guide 6 is interposed between the magnetic steel sheets 1b to be fixed therebetween.
  • the fixed core guide 6 includes a plurality of plates and is stacked.
  • the fixed core guide 6 includes two outer layers 6a and one inner layer 6b.
  • the fixed core guide 6 is fixed by the fixed core pins 1a together with the magnetic steel sheets 1b.
  • the rod 5 is disposed in a space provided between the right and left fixed core guides 6.
  • a groove 6c is provided on each fixed core guide 6 along the direction in which the rod 5 extends.
  • the side walls of the groove 6c are formed by the outer layers 6a, and the bottom of the groove 6c is formed by the inner layer 6b.
  • the movable core 2 has a gap perpendicular to the direction in which the conductors 3 extend, and a plate-shaped movable core guide 7 which is partially interposed in the groove 6c and which slides in the direction in which the rod 5 extends is fixed in this gap.
  • the direction in which the movable core 2 is movable is limited by the groove 6c.
  • the movable core guide 7 is fixed by the movable core pins 2a together with the magnetic steel sheets 2b.
  • the fixed core guides 6 and the movable core guide 7 are each preferably made of a non-ferromagnetic paramagnetic or diamagnetic material such as stainless steel, brass, and aluminum. This is because such a material does not affect the magnetic circuit included in the overcurrent tripping device 100.
  • a lever 8 is connected at one end thereof to the rod 5 and connected at another end thereof to a spring 9 provided outside the fixed core 1.
  • the lever 8 rotates about a fulcrum provided between the respective connection portions, and transmits the load force of the spring 9 to the movable core 2 via the rod 5.
  • the lever 8 is provided inside the fixed core guide 6 in the direction in which the conductors 3 extend, in the gap of the fixed core 1, so as to be interposed between the two outer layers 6a.
  • the lever 8 is fixed by the fixed core pin 1a, which penetrates the fixed core 1, together with the fixed core 1.
  • the lever 8 rotates about the portion fixed by the fixed core pin 1a as a fulcrum.
  • the lever 8 is fixed to the spring 9 by a spring seat 10.
  • the lever 8 Since the lever 8 is provided so as to be interposed between the fixed core guides 6, scratching of the magnetic steel sheets 1b due to rotation of the lever 8 is suppressed.
  • the lever 8 is made of a non-ferromagnetic material such as stainless steel, brass, and aluminum.
  • the overcurrent tripping device 100 includes a stage 11 and a spring adjusting screw 12 outside the fixed core 1.
  • the stage 11 is in contact with the spring 9 on one side, and is fitted with a screw hole provided such that the spring adjusting screw 12 disposed on the other side penetrates a center portion thereof.
  • a side surface 11a of the stage 11 faces wall surfaces of the spring guide 13, so that rotation of the stage 11 about the axis of the screw hole is suppressed.
  • the spring adjusting screw 12 is rotated, the stage 11 moves in the axial direction of the screw hole along the wall surfaces of the spring guide 13.
  • the spring 9 expands and contracts, so that the load force of the spring 9 changes.
  • the movable core 2 is biased by the spring 9 in the direction away from the fixed core 1, and the strength of the biasing of the movable core 2 changes as the stage 11 moves.
  • the strength of the biasing of the movable core 2 is to set a current scale value (predetermined current prescribed value to start tripping operation) of the overcurrent tripping device 100, and it is made possible to set a plurality of current scale values by making the strength of the biasing of the movable core 2 adjustable.
  • the initial load of the spring 9 is set so as to be equal to an electromagnetic drive force at the current scale value of the overcurrent tripping device 100.
  • the spring guide 13 is provided so as to surround the spring 9 and the side surface of the stage 11.
  • the spring guide 13 suppresses bending of the spring 9 in a direction other than the movement direction of the stage 11 and suppresses rotation of the stage 11.
  • the spring guide 13 includes a scale 14 on the outside thereof. Since the scale 14 is provided, the position of the stage 11 can be quantitatively grasped. Since the position of the stage 11 is quantitatively grasped, the correlation between the position of the stage 11 and the current scale value can be recorded in advance, so that it is possible to change the current scale value on the basis of the recorded current scale value without causing a current to flow through the conductors 3 to operate the overcurrent tripping device 100.
  • FIG. 5 is a front partial cross-sectional view showing a state before tripping operation of the overcurrent tripping device 100 according to Embodiment 1
  • FIG. 6 is a front partial cross-sectional view showing a state after tripping operation of the overcurrent tripping device 100.
  • FIG. 5 and FIG. 6 are each a front partial cross-sectional view taken along an alternate long and short dash line A-A in FIG. 2 .
  • a retention latch 51 is connected to the tripping mechanism (not shown) included in the circuit breaker 200, is in contact with another end 5a of the rod 5 on one side, and is rotatably fixed on the other side.
  • the load force is given from the spring 9 to the movable core 2, and, as shown in FIG. 5 , the movable core 2 is placed at an initial position facing the fixed core 1 with the magnetic gap 4 therebetween.
  • the movable core 2 moves from the initial position to a tripping position where the magnetic gap 4 is eliminated, as shown in FIG. 6 .
  • An arrow shown in the fixed core 1 and the movable core 2 in the drawing indicates a magnetic circuit ⁇ , and a fault current I is shown in the conductors 3.
  • the rod 5 moves together with the movable core 2, and the other end 5a rotates the retention latch 51 to release the latch.
  • the tripping mechanism of the circuit breaker 200 connected to the retention latch 51 is actuated to bring the circuit breaker 200 into an opened state.
  • each fixed core guide 6 includes a plurality of plates as shown in FIG. 3 is illustrated, but the present disclosure is not limited thereto.
  • a fixed core guide 6 obtained by processing one plate, for example, by means of cutting may be adopted.
  • the example in which the lever 8 is installed so as to be interposed between the two outer layers 6a as shown in FIG. 2 is illustrated, but the configuration for installing the lever 8 is not limited thereto.
  • the lever 8 that has an increased thickness may be fixed so as to be interposed between the magnetic steel sheets 1b without providing the outer layers 6a at the location where the lever 8 is disposed.
  • the thickness of the lever 8 can be increased to increase the rigidity of the lever 8 for transmitting the load force of the spring 9 to the movable core 2.
  • the example in which the lever 8 is fixed by the fixed core pin 1a at the fulcrum about which the lever 8 is rotationally driven as shown in FIG. 5 is illustrated, but the configuration of the fulcrum for fixing the lever 8 is not limited thereto.
  • a fulcrum for the lever 8 may be provided outside the fixed core 1 and the load force of the spring 9 may be transmitted to the movable core 2 using the principle of leverage.
  • the rod 5 and the lever 8 involved in the operation of the tripping mechanism are provided inside the fixed core 1 in the overcurrent tripping device 100, the outer shape of the overcurrent tripping device 100 can be reduced and the size of the overcurrent tripping device 100 can be reduced.
  • the rod 5 and the lever 8, which are movable parts are provided inside the fixed core 1, so that the sizes of the movable parts are reduced and the masses of the movable parts are decreased.
  • the movement speeds of the movable parts when a fault current flows through the conductors 3 can be increased, and the tripping operation time for the fault current can be shortened.
  • the thickness of the lever 8 is set to be equal to the thickness of the inner layer 6b, so that the size of the overcurrent tripping device 100 can be reduced.
  • the groove 6c can be easily formed, and the manufacturing process for the overcurrent tripping device 100 can be simplified.
  • the fixed core guides 6 and the movable core guide 7 are each formed from a paramagnetic or diamagnetic material, such a material does not affect the magnetic circuit included in the overcurrent tripping device 100, and the tripping operation time for a fault current can be shortened.
  • the lever 8 in the case where the lever 8 is fixed by the fixed core pin 1a, the lever 8 can be fixed inside the fixed core 1 without adding any component, so that the weight of the overcurrent tripping device 100 can be reduced and the manufacturing process for the overcurrent tripping device 100 can be simplified.
  • FIG. 8 is a front partial cross-sectional view of the overcurrent tripping device 100. An area shown in the cross-section is the same as in FIG. 5 .
  • the position of the stage 11 which is provided in the overcurrent tripping device 100 shown in Embodiment 1 is different from that in Embodiment 1, and the stage 11 is provided on the side on which the rod 5 actuates the tripping mechanism.
  • the direction in which the rod 5 actuates the tripping mechanism is shown by an arrow in FIG. 8 .
  • the movable core 2 is provided so as to face the fixed core 1 on the side on which the rod 5 actuates the tripping mechanism. Therefore, the rod 5 penetrates the movable core 2 and is fixed to the movable core 2.
  • the lever 8 is fixed by the fixed core pin 1a provided at the lower right of the fixed core 1.
  • the stage 11 is disposed on the side on which the rod 5 actuates the tripping mechanism.
  • the spring 9 generates a load force in the direction in which the rod 5 actuates the tripping mechanism, and transmits the load force to the lever 8. Similar to Embodiment 1, it is possible to change the current scale value by moving the stage 11 using a spring adjusting screw (not shown).
  • the position of the stage 11 is on the side on which the tripping mechanism is actuated, and the position where the operator operates the spring adjusting screw is different from that in Embodiment 1.
  • the number of choices of locations where the overcurrent tripping device 100 can be installed inside a circuit breaker can be increased.
  • FIG. 9 is a front cross-sectional view showing a schematic configuration of the circuit breaker 200 using the overcurrent tripping device 100.
  • the overcurrent tripping device 100 shown in Embodiment 1 or Embodiment 2 is incorporated into the circuit breaker 200, and the overcurrent tripping device 100 actuates the tripping mechanism of the circuit breaker 200 in a closed state.
  • FIG. 8 shows the circuit breaker 200 inserted into a fixation framework 70.
  • an upper conductor 53 and a lower conductor 54 are arranged under an arc-extinguishing chamber 52 in which an arc-extinguishing space is formed when a current flows.
  • a fixed-side main contact 55 is connected to the upper conductor 53.
  • the lower conductor 54 is connected to a movable conductor 57 via a flexible conductor 56, and a movable-side main contact 58 is provided at a position facing the fixed-side main contact 55, at an end of the movable conductor 57.
  • the movable conductor 57 rotates about a rotation shaft 59.
  • An opening operation is performed by an opening spring 60, and a closing operation is performed by an actuator 61.
  • the overcurrent tripping device 100 is provided at a certain location on the lower conductor 54.
  • the lower conductor 54 is connected to the conductors 3 of the overcurrent tripping device 100, and a main circuit current flows through the conductors 3.
  • the overcurrent tripping device 100 is engaged with a latch 64 via a latch driving link 63.
  • the latch driving link 63 shown by a broken line in FIG. 8 corresponds to a part for transmitting movement of the rod 5 of the overcurrent tripping device 100 described above with reference to FIG. 5 , to the retention latch 51, and on the basis of this operation, the latch 64 is driven.
  • the overcurrent tripping device 100 provided on the lower conductor 54 detects an overcurrent and performs operation, and the operation is transmitted to the latch 64 via the latch driving link 63. Then, the latch 64 rotates about a latch shaft 65 in the clockwise direction, whereby engagement with the movable conductor 57 is released and the movable conductor 57 rotates about the rotation shaft 59 in the clockwise direction, thereby performing an opening operation.
  • the fixed-side main contact 55 and the movable-side main contact 58 are housed inside the arc-extinguishing chamber 52.
  • a fixed-side arc contact element 66 and a movable-side arc contact element 67 are disposed, and an arc is generated upon interruption.
  • the fixed-side arc contact element 66 and the movable-side arc contact element 67 are opened after the fixed-side main contact 55 and the movable-side main contact 58 are opened.
  • a fixed-side arc horn 68 and a movable-side arc horn 69 are disposed for transferring the generated arc and leading the arc upward in the arc-extinguishing chamber 52.
  • the configuration of the circuit breaker 200 described with reference to FIG. 9 is merely an example, and is not limited thereto.
  • the configuration of the circuit breaker 200 may be any configuration in which a current flowing through the main circuit of the circuit breaker 200 is detected by the overcurrent tripping device 100, and the engagement between the movable conductor 57 and the latch 64 is released by operation of the overcurrent tripping device 100 to bring the circuit breaker 200 into an opened state.
  • the overcurrent tripping device 100 shown in Embodiment 1 or Embodiment 2 is incorporated into the circuit breaker 200, the movement speeds of the movable parts of the overcurrent tripping device 100 when a fault current flows through the lower conductor 54 can be increased, and the tripping operation time of the circuit breaker 200 for the fault current can be shortened.
  • the size of the overcurrent tripping device 100 is reduced, a space in which the overcurrent tripping device 100 is installed in the circuit breaker 200 can be reduced, so that the size of the circuit breaker 200 can be reduced.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
EP20805181.3A 2019-05-16 2020-05-07 Überstromauslöser und schutzschalter mit überstromauslöser Active EP3971933B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019092701 2019-05-16
PCT/JP2020/018509 WO2020230684A1 (ja) 2019-05-16 2020-05-07 過電流引外し装置およびこれを用いた回路遮断器

Publications (3)

Publication Number Publication Date
EP3971933A1 true EP3971933A1 (de) 2022-03-23
EP3971933A4 EP3971933A4 (de) 2022-06-22
EP3971933B1 EP3971933B1 (de) 2023-04-12

Family

ID=73290208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20805181.3A Active EP3971933B1 (de) 2019-05-16 2020-05-07 Überstromauslöser und schutzschalter mit überstromauslöser

Country Status (3)

Country Link
EP (1) EP3971933B1 (de)
JP (1) JP7109664B2 (de)
WO (1) WO2020230684A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4564394A1 (de) * 2023-11-30 2025-06-04 Abb Schweiz Ag Kern für einen schutzschaltermechanismus und schutzschaltermechanismus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022130552A1 (ja) * 2020-12-17 2022-06-23 三菱電機株式会社 過電流引外し装置およびこれを用いた回路遮断器
CN113782353B (zh) * 2021-09-15 2022-07-12 福州大学 一种cps新型旋转式电磁操动机构及其工作方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29723307U1 (de) * 1997-04-11 1998-08-06 AEG Niederspannungstechnik GmbH & Co KG, 24534 Neumünster Schneller Überstromauslöser für Gleichstromschnellschalter
DE19715114A1 (de) * 1997-04-11 1998-10-22 Aeg Niederspannungstech Gmbh Schneller Überstromauslöser für Gleichstromschnellschalter
EP2431992B1 (de) 2010-09-20 2013-01-23 Sécheron SA Auslösemechanismus für Schaltungsunterbrechungsvorrichtung
US10453638B2 (en) * 2015-06-19 2019-10-22 Mitsubishi Electric Corporation Overcurrent tripping device and circuit breaker employing same
WO2017183679A1 (ja) * 2016-04-22 2017-10-26 三菱電機株式会社 回路遮断器の接触子装置、およびこの接触子装置を用いた回路遮断器
CN111052288B (zh) * 2017-08-21 2022-02-08 三菱电机株式会社 断路器
CN111033669B (zh) * 2017-08-21 2021-11-09 三菱电机株式会社 电磁操作机构及断路器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4564394A1 (de) * 2023-11-30 2025-06-04 Abb Schweiz Ag Kern für einen schutzschaltermechanismus und schutzschaltermechanismus

Also Published As

Publication number Publication date
JP7109664B2 (ja) 2022-07-29
WO2020230684A1 (ja) 2020-11-19
EP3971933A4 (de) 2022-06-22
EP3971933B1 (de) 2023-04-12
JPWO2020230684A1 (ja) 2021-11-18

Similar Documents

Publication Publication Date Title
EP3971933B1 (de) Überstromauslöser und schutzschalter mit überstromauslöser
US10453638B2 (en) Overcurrent tripping device and circuit breaker employing same
EP2871651B1 (de) Schutzschalter
CN102449720A (zh) 电磁脱扣装置
KR20150028830A (ko) 전기 접점 장치, 조립체, 및 작동 방법
JP6072065B2 (ja) アークチャンバ内のアークから生じる圧力によって押されるトリップ部材を含んだトリップ機構及び電気的スイッチング機器
TW200805411A (en) Breaker
JP7399276B2 (ja) トリップ装置
JP5093081B2 (ja) 電磁操作器
JP4770640B2 (ja) 電磁操作器
US7482902B2 (en) Linear magnetic drive
KR101410780B1 (ko) 전력회로 개폐기용 트립 액추에이터
HK40067800A (en) Overcurrent tripping device, and circuit breaker in which overcurrent tripping device is used
HK40067800B (en) Overcurrent tripping device, and circuit breaker in which overcurrent tripping device is used
CN101390180A (zh) 磁致伸缩的电开关装置
EP4266343B1 (de) Überstromauslösevorrichtung und schutzschalter damit
JP5366599B2 (ja) 電磁石およびこれを用いた開閉装置
JP2008204864A (ja) 開閉器
CN101521130A (zh) 断路器的远程操作单元
HK40096955A (en) Overcurrent trip device, and circuit breaker using same
JP2017220348A (ja) 回路遮断器
EP3182437A2 (de) Klappanker mit gekrümmter polfläche
JP2006294449A (ja) 開閉装置および電磁アクチュエータ
KR20130001368U (ko) 소형 회로차단기의 순시 트립 장치
JPS62272419A (ja) 回路遮断器の引外し装置

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210804

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20220520

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 71/24 20060101AFI20220516BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 40067800

Country of ref document: HK

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20221024

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020009744

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1560254

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230515

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230424

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230412

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1560254

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230814

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230712

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230812

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230713

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602020009744

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230507

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

26N No opposition filed

Effective date: 20240115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230612

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250402

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20250601

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20200507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20200507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20260323

Year of fee payment: 7