EP0649157B1 - Appareillage de protection électrique à disjoncteur et effecteur - Google Patents
Appareillage de protection électrique à disjoncteur et effecteur Download PDFInfo
- Publication number
- EP0649157B1 EP0649157B1 EP94410088A EP94410088A EP0649157B1 EP 0649157 B1 EP0649157 B1 EP 0649157B1 EP 94410088 A EP94410088 A EP 94410088A EP 94410088 A EP94410088 A EP 94410088A EP 0649157 B1 EP0649157 B1 EP 0649157B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- effector
- circuit
- connection
- electrical protection
- circuit breaker
- 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.)
- Expired - Lifetime
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
- H01H71/121—Protection of release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
- H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
- H01H2089/065—Coordination between protection and remote control, e.g. protection job repartition, mutual assistance or monitoring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
- H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
- H01H9/465—Shunt circuit closed by transferring the arc onto an auxiliary electrode
Definitions
- the effector is formed by a static switch connected in series with the contacts of the circuit breaker.
- the switch is connected between the fixed contact and the input terminal, while the movable contact is connected to the output terminal via the thermal release, and the electromagnetic release.
- the switch remains energized in the open state of the circuit breaker contacts, and the triggers, including the electromagnetic trip coil, are shunted when the arc switches over the two guide horns of the arc extinguishing chamber.
- the switch is connected between the triggers and the output terminal, and the two guide horns are respectively connected to the terminal input and output terminal.
- the object of the invention is to improve the protection and safety of a switchgear circuit breaker and effector.
- the switching electrode is in electrical connection with one end of the electromagnetic trip control coil, the other end being connected to the output terminal so as to maintain the excitation of the coil during the shunting phase of the effector.
- the movable contact In the case of an electromagnetic trip device with striker, the movable contact remains blocked in the open position by the striker throughout the fault elimination phase until the arc goes out.
- an electrical protection device 10 is formed by the association of a circuit breaker 12 with a remotely controlled effector 14.
- the circuit breaker 12 has a first switch circuit 16 electrically connected in series with a second circuit switch 18 of the effector 14.
- the first switch circuit 16 of the circuit breaker comprises a fixed contact 20 cooperating with a movable contact 22, which is connected by a braid 24 to a bimetallic strip of a trip device 26.
- the foot of the bimetallic strip is connected to an input terminal 28, and to a first arc guide horn 30.
- the output terminal 32 is connected to one of the ends 34b of a coil 34 of an electromagnetic trip device 36, the other end 34a being at the potential a switching electrode 38, and a second arc guiding horn 40.
- the fixed contact 20 is electrically isolated from the coil 34 and the electrode 38 by an interval 42.
- the electromagnetic trip device 36 is provided with a trigger 44 arranged to trigger the mechanism 43 during the appearance of a short-circuit current, and to play the role of a striker propelling the movable contact 22 to the open position.
- the two horns 30, 40 frame a arc quenching chamber 45 which is formed by a stack of deionization sheets.
- the second switch circuit 18 of the effector 14 is connected to a pair of terminals. connection 46, 48 so as to be electrically connected to the fixed contact 20 by a first connection area 50, and at the end 34b of the coil 34 by a second area 52 of connection.
- the actuation of the contacts of the second switch circuit 18 is operated by a control member 54, for example of the electromagnet type connected to terminals 56, 58 control auxiliaries.
- the two areas 50, 52 are respectively connected to the connection terminals 46, 48 of the effector 14 by a pair of conductors 60, 62.
- the effector 14 can be constituted either by a remote control switch or by a contactor electromechanical or static, or by any other electrical endurance device, with the placing its second switch circuit 18 in series in the main circuit of the circuit breaker 12.
- the current enters the apparatus 10 via input terminal 28, flows successively through the bimetal of the trip unit thermal 26, contacts 22, 20 of the first switch circuit 16, the first range 50 link, the conductor 60, the contacts of the second switch circuit 18, the conductor 62, the second connection area 52, and then crosses the coil 34 of the release electromagnetic 36 to exit the apparatus 10 by the output terminal 32.
- each control pulse applied to terminals 56, 58 causes a change of state of the second switch circuit 18. If the effector 14 is constituted by a contactor, the second switch circuit 18 is permanently in the closed state in presence of a maintained control signal. The contactor opens automatically that the control signal disappears.
- the appearance of a short-circuit or overcurrent current downstream of the output terminal 32 causes the automatic triggering of mechanism 43 by the action of the trigger electromagnetic 36 or thermal trip 26 of circuit breaker 12.
- the arc resulting from the separation of the contacts 20, 22 develops in the arc-forming chamber, and migrates quickly towards the switching electrode 38, so as to bypass the effector 14 for the protect from the effects of the fault current.
- the coil 34 of the electromagnetic trip device 36 continues to be supplied by the arc current following the shunting of the effector 14, and this, throughout the fault elimination phase.
- the striker of the triggering member 44 of the electromagnetic trigger 36 maintains then the movable contact 22 in the open state until the arc extinguishes.
- Figure 3 shows the circuit breaker 12 in the closed position.
- the same numbers of marks will be used to designate parts similar to those of figure 2.
- the contact mobile 22 is carried by a contact arm 64 pivotally mounted on an axis 66.
- the ranges 50, 52 of the effector 14 are connected respectively to the fixed contact 20, and to the end 34a of the coil 34 which is at the potential of the switching electrode 38.
- the presence of the isolation interval 42 guarantees the holding of the isolation between the input and the output of the effector 14 when the contacts 20, 22 of the first switch circuit 16 are are in the closed position, while the second switch circuit 18 is in the open state.
- FIG. 5 shows the development of the arc A1 B1 in the formation chamber 68, just before its entry in the extinguishing chamber 45. Note that the coil 34 of the trigger electromagnetic remains supplied by the fault current as long as the arc moves along the switching electrode 38.
- the interval isolation 42 is composed of a first air space 70 arranged between the lower part of the fixed contact 20 and the electrode 38 shaped as a half-loop, and of a wall 72 intermediate in rigid insulating material serving as a support for the fixed contact 20.
- the wall 72 is made by molding with the plastic housing 74 of the circuit breaker 12, and extends opposite of the movable contact 22 between the fixed contact 20 and a conductive branch 76 connecting the electrode 38 at the end 34a of the coil 34.
- the shape of the electrode 38 is adapted to favor the migration of the arc root during the fault shutdown phase, while ensuring dielectric strength when the circuit breaker is closed.
- the electrode 38 is equipped with a straight face 78 disposed in the extension of the plane of the patch of the fixed contact 20.
- the face 78 can also be curved to project from the plane of the fixed contact 20.
- the variant of FIG. 7 relates to a bipolar apparatus 100 formed by the association of a unipolar and neutral circuit breaker 102 and a bipolar effector 104.
- the phase circuit L with its triggers 126 and 136 is identical to the diagram in FIG. 2, the marks of the same parts being assigned a number 1 at the hundred.
- the operation of the phase circuit L of the apparatus 100 has the same advantages as that described above.
- the neutral circuit N the marks of similar parts are assigned a number 2 at the hundred.
- the circuit breaker part of the neutral circuit N is not protected, and is therefore devoid of trip devices.
- the input terminal 228 is connected by the braid 224 to the movable contact 222, and the guide horn assembly 240 and the electrode 238 is connected directly to the output terminal 232.
- connection pad 250 is connected to the fixed contact 220, while the other connection pad 252 is connected to the guide horn 240.
- the effector 214 is connected in series between the fixed contact 220 and the switching electrode 238. The two parts 114, 214 of the bipolar effector 104 are thus de-energized when the contacts 120, 220; 122, 222 of the circuit breaker 102 are open.
Landscapes
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Thermally Actuated Switches (AREA)
Description
- le disjoncteur, comprenant un premier circuit interrupteur à contacts fixe et mobile, un mécanisme piloté par un déclencheur électromagnétique à bobine de commande et par un déclencheur thermique, une paire de première et deuxième cornes de guidage d'arc associée à une électrode de commutation, disposée au voisinage des contacts du premier circuit interrupteur, une chambre d'extinction d'arc dans le circuit des déclencheurs, une borne d'entrée, et une borne de sortie,
- l'effecteur ayant un deuxième circuit interrupteur agencé pour être connecté électriquement en série avec ledit premier circuit interrupteur, lorsque ce dernier se trouve dans l'état fermé, et pour être automatiquement shunté par la commutation de l'arc sur l'électrode lors du déclenchement du mécanisme à la suite d'un défaut.
- l'effecteur, comporte une première plage de liaison au contact fixe, et une deuxième plage de liaison à la deuxième corne de guidage et à l'électrode de commutation,
- la première corne de guidage, est connectée avec le contact mobile à la borne d'entrée,
- et un intervalle d'isolement est agencé entre le contact fixe et l'électrode de commutation.
- la figure 1 est une vue schématique d'un appareillage électrique unipolaire selon l'invention,
- la figure 2 montre le circuit électrique de l'appareillage selon la figure 1,
- la figure 3 représente une vue en élévation du disjoncteur après enlèvement du couvercle, le disjoncteur étant dans l'état fermé,
- les figures 4 et 5 sont des vues identiques de la figure 3, respectivement au début et à la fin de la course d'ouverture du contact mobile du disjoncteur,
- la figure 6 montre une vue de détail de l'intervalle d'isolement,
- la figure 7 est une vue identique de la figure 2, représentant une variante de réalisation formée par l'association d'un disjoncteur unipolaire et neutre et d'un effecteur bipolaire.
Claims (7)
- Appareillage de protection électrique (10, 100) formé par l'association d'un disjoncteur (12, 102) et d'un effecteur (14,104),le disjoncteur (12,102) comprenant un premier circuit interrupteur (16) à contacts fixe et mobile (20,22 ; 120, 122 ; 220, 222), un mécanisme (43) piloté par un déclencheur électromagnétique (36,136) à bobine (34,134) de commande et par un déclencheur thermique (26, 126), une paire de première et deuxième cornes de guidage d'arc (30, 40 ; 130, 140) associée à une électrode de commutation (38, 138, 238) disposée au voisinage des contacts du premier circuit interrupteur (16), une chambre d'extinction d'arc (45, 145) dans le circuit des déclencheurs, une borne d'entrée (28, 128, 228) et une borne de sortie (32, 132, 232),l'effecteur (14, 104) ayant un deuxième circuit interrupteur (18, 118, 218) agencé pour être connecté électriquement en série avec ledit premier circuit interrupteur lorsque ce dernier se trouve dans l'état fermé, et pour être automatiquement shunté par la commutation de l'arc sur l'électrode (38, 138, 238) lors du déclenchement du mécanisme (43) à la suite d'un défaut,l'effecteur (14, 104) comporte une première plage (50, 150, 250) de liaison au contact fixe (20, 120, 220) et une deuxième plage (52, 152, 252) de liaison à la deuxième corne de guidage (40, 140, 240) et à l'électrode de commutation (38, 138, 238),la première corne de guidage (30, 130, 230) est connectée avec le contact mobile (22, 122, 222) à la borne d'entrée (28, 128, 228),et un intervalle d'isolement (42) est agencé entre le contact fixe (20, 120, 220) et l'électrode de commutation (38, 138, 238).
- Appareillage de protection électrique (10, 100) selon la revendication 1, caractérisé en ce que l'électrode de commutation (38, 138) est en liaison électrique avec l'une des extrémités (34a) de la bobine (34) 134) de commande du déclencheur électromagnétique (36, 136), l'autre extrémité (34b) étant connectée à la borne de sortie (32, 132) de manière à maintenir l'excitation de la bobine (34, 134) lors de la phase de shuntage de l'effecteur (14, 104).
- Appareillage de protection électrique (10, 100) selon la revendication 1 ou 2, caractérisé en ce que l'effecteur (14, 104) est équipé d'un organe de commande (54) à électroaimant relié à des bornes auxiliaires (56, 58), et que le deuxième circuit interrupteur (18, 118, 218) est branché à une paire de bornes de raccordement (46, 48 ; 146, 148 ; 246, 248) connectées respectivement à la première plage de liaison (50, 150, 250) et à la deuxième plage de liaison (52, 152, 252).
- Appareillage de protection électrique (10, 100) selon l'une des revendications 1 à 3, caractérisé en ce qu'un déclencheur thermique (26, 126) à bilame est connecté entre le contact mobile (22, 122) et la borne d'entrée (28, 128), le pied du bilame étant en liaison avec la première corne de guidage d'arc (30, 130).
- Appareillage de protection électrique (100) selon d'une des revendications 1 à 4, comprenant un disjoncteur unipolaire et neutre (102), et un effecteur bipolaire (104), caractérisé en ce que l'électrode de commutation (238) du circuit de neutre N est reliée à la borne de sortie 232 par l'intermédiaire de la deuxième corne de guidage (240), à laquelle est également raccordée la deuxième plage de liaison (252) de l'effecteur (214, 104).
- Appareillage de protection électrique selon l'une des revendications 1 à 5, caractérisé en ce que l'effecteur (14, 104) est constitué par un télérupteur.
- Appareillage de protection électrique selon l'une des revendications 1 à 5, caractérisé en ce que l'effecteur (14, 104) est constitué par un contacteur électromagnétique ou statique.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9312406A FR2711270B1 (fr) | 1993-10-15 | 1993-10-15 | Appareillage de protection électrique à disjoncteur et effecteur. |
FR9312406 | 1993-10-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0649157A1 EP0649157A1 (fr) | 1995-04-19 |
EP0649157B1 true EP0649157B1 (fr) | 1999-12-15 |
Family
ID=9451955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94410088A Expired - Lifetime EP0649157B1 (fr) | 1993-10-15 | 1994-10-11 | Appareillage de protection électrique à disjoncteur et effecteur |
Country Status (6)
Country | Link |
---|---|
US (1) | US5539365A (fr) |
EP (1) | EP0649157B1 (fr) |
CN (1) | CN1045686C (fr) |
DE (1) | DE69422134T2 (fr) |
ES (1) | ES2140517T3 (fr) |
FR (1) | FR2711270B1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2753001B1 (fr) * | 1996-09-04 | 1998-11-20 | Legrand Sa | Interrupteur commande et protege, tel que telerupteur ou contacteur |
KR19980054544U (ko) * | 1996-12-31 | 1998-10-07 | 이종수 | 배선용 차단기의 소호장치 |
FR2832559B1 (fr) * | 2001-11-16 | 2004-01-16 | Schneider Electric Ind Sa | Module de commande et de protection d'un appareil interrupteur |
DE10324390A1 (de) * | 2003-05-30 | 2004-12-23 | Abb Patent Gmbh | Elektrische Auslöseeinrichtung für einen elektrischen Schalter |
CN102347177A (zh) * | 2011-09-19 | 2012-02-08 | 广东天富电气集团有限公司 | 一种热磁型断路器的工作方法 |
CN111919276A (zh) * | 2018-03-28 | 2020-11-10 | 松下知识产权经营株式会社 | 电路切断装置 |
CN111755299B (zh) * | 2019-03-29 | 2022-07-05 | Ls产电株式会社 | 配线用断路器的灭弧装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2533363B1 (fr) * | 1982-09-17 | 1985-11-08 | Merlin Gerin | Disjoncteur electrique a courant alternatif equipe d'un declencheur magnetothermique et d'un organe de commutation statique a telecommande |
US4616206A (en) * | 1984-09-07 | 1986-10-07 | Eaton Corporation | Circuit breaker and shunt trip apparatus combined within single pole device |
US4654614A (en) * | 1985-03-04 | 1987-03-31 | Westinghouse Electric Corp. | Current limiting solenoid operated circuit breaker |
FR2581477B1 (fr) * | 1985-05-06 | 1989-01-13 | Telemecanique Electrique | Appareil interrupteur protege contre les courants de court-circuit |
FR2584529B1 (fr) * | 1985-07-04 | 1995-01-06 | Merlin Gerin | Disjoncteur-contacteur electrique, notamment pour des batteries de condensateurs |
-
1993
- 1993-10-15 FR FR9312406A patent/FR2711270B1/fr not_active Expired - Fee Related
-
1994
- 1994-09-20 US US08/309,891 patent/US5539365A/en not_active Expired - Fee Related
- 1994-10-11 DE DE69422134T patent/DE69422134T2/de not_active Expired - Fee Related
- 1994-10-11 EP EP94410088A patent/EP0649157B1/fr not_active Expired - Lifetime
- 1994-10-11 ES ES94410088T patent/ES2140517T3/es not_active Expired - Lifetime
- 1994-10-14 CN CN94117105A patent/CN1045686C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1106162A (zh) | 1995-08-02 |
FR2711270A1 (fr) | 1995-04-21 |
FR2711270B1 (fr) | 1995-11-24 |
DE69422134D1 (de) | 2000-01-20 |
EP0649157A1 (fr) | 1995-04-19 |
DE69422134T2 (de) | 2000-06-15 |
ES2140517T3 (es) | 2000-03-01 |
CN1045686C (zh) | 1999-10-13 |
US5539365A (en) | 1996-07-23 |
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