EP1331658B1 - Appareillage électrique de coupure muni d'une commande motorisée et procédé de commande d'un tel appareillage - Google Patents

Appareillage électrique de coupure muni d'une commande motorisée et procédé de commande d'un tel appareillage Download PDF

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Publication number
EP1331658B1
EP1331658B1 EP02354180A EP02354180A EP1331658B1 EP 1331658 B1 EP1331658 B1 EP 1331658B1 EP 02354180 A EP02354180 A EP 02354180A EP 02354180 A EP02354180 A EP 02354180A EP 1331658 B1 EP1331658 B1 EP 1331658B1
Authority
EP
European Patent Office
Prior art keywords
motor
closing
opening
primary member
dead point
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
Application number
EP02354180A
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German (de)
English (en)
French (fr)
Other versions
EP1331658A1 (fr
Inventor
Christophe Grumel
Marc Serpinet
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.)
Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1331658A1 publication Critical patent/EP1331658A1/fr
Application granted granted Critical
Publication of EP1331658B1 publication Critical patent/EP1331658B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H71/66—Power reset mechanisms
    • H01H71/70—Power reset mechanisms actuated by electric motor

Definitions

  • the invention relates to an electrical switchgear, for example a circuit breaker, provided with a motorized control for closing and, where appropriate, opening and resetting of the circuit breaker mechanism.
  • a molded case electric circuit breaker provided with an operating handle, and on which is assembled a motorized drive module of the joystick.
  • the module comprises a motor driving a worm which cooperates with a nut integral with the handle.
  • the motor is of an AC type having a first winding for driving the rotor in a first direction and a second winding for driving in the opposite direction.
  • a switch selectively connects one or the other of the windings to an electrical source via a first and a second circuit branch each having a control push button.
  • the motor and auger are mounted in a frame attached to the circuit breaker box. Guiding provides the screw a low degree of freedom of translation relative to the chassis and the stator of the engine.
  • the opening pushbutton is actuated and the motor is powered in the second direction of operation to drive the handle, without stopping to a position armed located a little beyond the open position.
  • the continued rotation of the motor causes a slight translation of the screw and causes the switch to switch the switch off the engine power.
  • a removable module for the motorized drive of a controller of an electrical device breaking, circuit breaker or contactor.
  • the module comprises a motor that drives a worm cooperating with a drawer secured to the handle of the electric switchgear.
  • the drawer moves in translation between two end positions, without intermediate stop.
  • the drawer has a window into which is inserted the handle of a control switch. As the drawer approaches one or other of its end positions, the window sill drives the control switch handle and toggles the switch, opening the motor power circuit. This arrangement makes it possible to control the motor with a single control switch.
  • the closing time from a closing order is conditioned by the distance to be traveled between the armed position and the closing dead position position, which is a non-modifiable constructive data of the mechanism of the aircraft. cut.
  • the performance is achieved at the cost of a large footprint and cost.
  • the invention therefore aims to overcome the disadvantages of the state of the art, so as to provide an electrical switchgear equipped with a motorized control module of low power and small footprint to obtain a short closing time.
  • the distance remaining after the closing order is smaller and requires less energy.
  • the indexed stopping position is closer to the closing neutral position than to the armed position.
  • control means comprise an auxiliary switch changing state during the passage of the primary member by the indexed stop position.
  • control means comprise means for detecting the fact that the primary member is in the closed position while the motor is controlled to turn in the closing direction, and to stop the motor in this case.
  • This detection can be made for example by an auxiliary microswitch limit switch. If the motor is a stepper motor, the detection can be obtained by determining the position of the motor.
  • the motor is a DC motor powered by a supply current controlled by the control means, and the control means comprise means for detecting the fact that the motor power current remains above a predetermined threshold for a predetermined time while the motor is powered to turn in the closing direction, and to interrupt the power supply of the motor in this case.
  • the indexed position of reversal is the armed position.
  • the motor is a DC motor powered by a supply current controlled by the control means, and the control means comprise means for detecting that the intensity of the motor supply current remains above a threshold predetermined for a predetermined duration while the motor is powered to rotate in an opposite direction of the direction of closure, and to change the direction of rotation of the motor in this case.
  • the apparatus is then particularly simple and reliable, because of the small number of sensors.
  • the indexed reversal position is an intermediate position between the open neutral position and the armed position, closer to the opening dead point position than the armed position. The movement of the primary member in the opening direction, thus the time before the reclosing, is then minimized.
  • the opening procedure further comprises an opening step preceding the step of preparation for closing and in which the movable contact member is brought into the separation position and in which the motor drives the primary member in an opening direction reverses to the closing direction to an indexed reversal position.
  • the indexed position of reversal is the armed position.
  • the mechanism further comprises: a fastening member and a trigger lock.
  • the hooking member is movable between a hooked position and an unhooked position, and is in the hooked position when the movable contact member is in the contact position.
  • the trigger latch is controlled by an actuator, and ensures the locking of the latching member in the hooked position, the accumulation spring tending to simultaneously drive the latching member from the position hooked to the unhooked position and movable contact member from the contact position to the separation position when the latch releases the latching member.
  • the movable contact member is brought into the separation position by controlling the actuator which unlocks the latch to release the latching member.
  • the opening time is minimized and becomes independent of the motor power. However, the time required for an open-close cycle remains long, because the engine must It is imperative to return the primary member to the arming position before being able to order the closure.
  • the indexed overturning position is situated between the armed position and an opening neutral position position between the closing neutral position and the armed position, the accumulation spring being loaded while passing from the closed position at the open neutral position when the moving contact is in the contact position and discharging by driving the movable contact member into the separation position when the primary member continues to move in the direction of contact. opening by exceeding the opening dead point to the indexed position of reversal.
  • the response time to an opening command is greater and depends on the power of the engine. However, the duration of the open-close cycle is then minimized because the movement of the primary member is minimized.
  • the motor drives the primary member from the intermediate stop position to the closed position.
  • a cut-off device 10 in this case a three-phase breaker of the molded-case and double-break type, comprises, inside a housing 12 made of insulating plastic material, the cover of which has been intentionally omitted from the drawings for simplify the presentation of the cut-off bulbs 14 and their drive mechanism 16.
  • the mechanism is provided with an oscillating operating member 18.
  • This operating member has a general shape of cylinder sector and is provided with a radial endpiece 20 to which can alternatively be fixed either a crank pin 22 or a toothed sector 24.
  • the crank pin 22 is mounted in the case where the device is intended for manual use, which will not interest us in the following. presentation.
  • the toothed sector 24 makes it possible for it to connect the operating member to a removable motorized module 26.
  • This module 26 comprises a support frame 28 formed by two flanges fixed to a frame of the mechanism via a fork 32 and fastening screws not shown in the figures.
  • the active parts of the cut-off bulb are constituted by two fixed U-shaped fixed power connection areas 34, 36, and a moving bridge contact member 38 shown in a separation position on the Figures 3 to 5 , and in contact position on the figure 2 this latter position allowing the closure of the power circuit and the passage of the current between the two fixed areas 34, 36 via the contact bridge 38.
  • the contact bridge 38 is supported by a rotating elementary bar 40 pivoting around the a geometric axis 42 fixed relative to the housing.
  • the elementary bar 40 is connected to a hook 44 of the mechanism via a linkage consisting of a lower link 46 pivoting about a material and geometric axis 48 fixed relative to the bar, and an upper rod 50 pivoting about a fixed geometric axis 52 relative to the hook 44, the two links 46, 50 together forming a toggle joint articulated by an intermediate pivot 54.
  • the hook 44 is itself pivotally mounted about a fixed axis 56 by relative to the housing, supported by the flanges of the mechanism.
  • the free end of the hook 44 cooperates with a notch formed in a hitching pallet 58 pivotally mounted about a fixed axis 60 with respect to the frame of the mechanism.
  • the pallet 58 is recalled in its attachment position by a return spring not shown and held in this position by a locking lever 62 whose pivoting is controlled by an electromechanical actuator forming part of a trigger, not shown.
  • the hook 44 forms in its upper part a resetting cam 64 cooperating with a roller 66 supported by the operating member 18, the operating member being itself pivotally mounted relative to a fixed geometric axis 68 relative to the frame mechanism and the housing.
  • a tension spring 70 ( figure 1 ) is banded between the operating member 18 and the hinge pin 54 of the linkage. To simplify the representation, it was not included in Figures 2 to 5 the action line 72 of the tension spring 70. This type of mechanism is well known to those skilled in the art.
  • the ring gear 24 is mounted on the end 20 of the operating member 18 and meshes with a threaded segment 74 of a rotary shaft 75 forming an irreversible transmission stage 76 worm.
  • the shaft is mounted in bearings 78, 80 of the frame of the motorized module 26 and keyed at the end of the rotor shaft of a DC motor 82, the bearings 78, 80 allowing no translation of the shaft.
  • the control circuit 83 of the motorized module is visible on the figure 6 .
  • An auxiliary switch 84 or micro-contact makes it possible to locate the passage of the operating member 18 by an indexed stop position, located between the armed open position and a neutral position of closure of the mechanism and shown in FIG. figure 4 .
  • the closing neutral position is the position of the operating member 18 corresponding to an alignment of the direction 72 of the force applied by the accumulation spring 70 to the articulation 54, with a plane containing the two pivot axes 52, 54 of the upper link 50, when the bar 40 is in the separation position shown in FIG. figure 3 .
  • the actuating member 18 exceeds the closure dead point to the closed position and leaves the angular sector of friction, the spring 70 becomes motor.
  • the indexed stopping position of the figure 4 is located a few degrees from the closing neutral position, between the closing neutral position and the armed open position represented on the figure 3 .
  • Three electrical control lines 86, 88, 90 allow the operator or an automated power distribution management center to transmit, from a remote control interface or any other means, respectively an order of opening, a reset command, and a close command.
  • a switch 92 located in the circuit breaker makes it possible to direct either the opening order or the resetting order. This switch is activated by the movement of the hook 44 or any other element of the mechanism representative of the triggered state or not of the device.
  • the switch 92 is in the position shown in solid lines on the figure 6 when the hook 44 is hooked to the pallet 58.
  • the switch 92 goes into the dashed position when the circuit breaker is tripped, the hook 44 being in the position of the figure 5 .
  • a logic unit 94 receives these signals, as well as a signal representative of the intensity of the motor supply current 82, delivered by a current sensor 96, and controls the intensity of the motor supply current 82.
  • the operation of the device is as follows.
  • an electromechanical actuator not shown rotates the locking lever 62, releasing the pallet
  • the hook 44 regrows then the pallet 58 and is released.
  • the spring 70 of the mechanism discharges by contracting, bringing the linkage 46, 50 and the hook 44 into the triggered position shown in FIG. figure 5 .
  • the bar 40 pivots about its axis 42 and opens the power circuit of the circuit breaker.
  • the actuating member 24 remains stationary.
  • the auxiliary switch 92 goes into the position shown in dotted line on the figure 6 due to the displacement of the hook 44.
  • a resetting sequence takes place, whose chronological sequence is illustrated by the time diagrams of the Figures 7a to 7e , in ordinate respectively: the position of the operating member 18 of the apparatus on the figure 7a ; the intensity of the motor supply current on the figure 7b ; the state of line 86 of transmission of an order of opening on the Figure 7c ; the state of the detector 84 passing through the intermediate stopping position on the line 7d; and the detection by the sensor 96 of exceeding the threshold of the intensity of the current on the figure 7e .
  • the sequence is initiated by a reset command received by the control module on line 88 at time t 0 and displayed on the Figure 7c .
  • Logic unit 94 drives the motor in a reset direction.
  • the intensity of the supply current ( figure 7b ) exceeds the detection threshold for a few moments, which is detected by the sensor ( figure 7e ).
  • the logical unit compares the duration of this threshold overrun with a time constant. Since the current draw by the motor is transient and has a duration less than the time constant, the logic unit does not modify the command.
  • the motor continues to be powered and ensures, from time t 1 , the pivoting of the actuating member of the position of the figure 3 at the position of the figure 4 , as shown schematically on the figure 7a .
  • the motor is blocked and the supply current increases again to cross the detection threshold.
  • the motor supply is cut off (at time t 3 ) for a short time, before being reversed at time t 4 .
  • the power supply of the engine at rest causes a peak of current which diminishes when the rotor starts to move, so that the duration of the peak (t 4 at time t 5 ) is less than the constant the logic unit does not change the motor power supply.
  • the motor then drives the operating member of the open position armed with the figure 3 at the indexed intermediate position of the figure 4 . Arriving in this position at time t 6 , the actuator actuates the auxiliary switch ( figure 7d ) which changes to its passing state. This event is detected by the logical drive that stops the motor power.
  • the engine has virtually no inertia and stopping is almost immediate, especially since the accumulation spring tends to bring the actuating member to the open armed position.
  • the actuator is then a few degrees of dead point closing the mechanism, biased to the open position armed by the accumulation spring.
  • the irreversible nature of the transmission stage 76 produced by the ring gear 24 and the worm 74 locks in this position and prevents the accumulation spring from causing a return to the armed open position.
  • the apparatus is then in a state ready to close, waiting for a closing order.
  • a close command on the closing line causes the mechanism of the state represented on the figure 4 to the one represented on the figure 2 , following the sequence illustrated on the temporal patterns of Figures 8a to 8e which relate respectively to the ordinate: the position of the operating member 18 of the apparatus on the figure 8a ; the intensity of the motor supply current on the figure 8b ; the state of the transmission line 90 of an opening order on the figure 8c ; the state of the detector 84 passing through the intermediate stopping position on the line 8d; and the detection by the sensor 96 of exceeding the threshold of the intensity of the current on the figure 8e .
  • a closing command is detected on line 90 ( figure 8c ) and the logic unit activates the motor ( figure 8b ).
  • the initial power supply to the engine at a standstill causes a current peak until the instant T 1 .
  • This peak is detected ( figure 8e ) but the logical unit does not change the command because the duration of the peak (T 1 -T 0 ) is less than the time constant.
  • the motor drives the operating member to the closed position. Starting the engine is even faster when the device is close to the dead point of closure, so that the force opposite the accumulation spring is low.
  • the accumulation spring 70 becomes a motor and drives the linkage and the bar in a pulsed manner towards the closed position shown on FIG. figure 2 regardless of the progression of the operating member 18.
  • the actuating member 18 continues its movement to the closed position of the figure 2 where it is blocked by a limit stop at time T 2 .
  • the supply current goes above the detection threshold.
  • the logic unit stops the supply at time T 3 . The device is found at rest in the state of the figure 2 .
  • the control described above only requires a switch 92 and an auxiliary switch 84 to detect the indexed position. It is therefore particularly reliable. However, the actuator 18 covers a useless distance to the armed position in the case where the opening was not caused by a triggering of the device. The duration of an opening-closing sequence is therefore not optimized.
  • the logic unit receives, independently of each other, the signals from the opening control line 186, the reset control line 188 and a triggered state detection 192. From the logic unit receives a signal from an auxiliary switch 198 changing state when the actuating member exceeds an indexed position, shown on the figure 11 and located near an opening dead point.
  • the open neutral position located between the closed neutral position and the armed open position, is the position corresponding to an alignment of the accumulation spring with a plane containing the pivot axes of the upper link, when the contacts are in the contact position. It is at the friction cone ready, the position from which the accumulation spring becomes motor to bring the bar in the separation position.
  • the indexed position is located between the open dead point and the armed open position, so that when the change of state of the auxiliary switch is detected, it is sure that the separation of the contacts has taken place.
  • the opening command line information is not processed.
  • the order on the reset line is treated as in the first embodiment according to the scheme of the figure 7 .
  • the order on the reset line is not processed.
  • an order on the opening command line is specifically processed as described below, using the diagrams of the figure 10 .
  • the motor drives the operating member from the closed position to the armed open position, but stops before reaching this position, as soon as the contact position detector detects the opening of the contacts at time t ' 2 which reflects the fact that the mechanism has gone beyond opening dead point.
  • the logic unit can then, without waiting for the flow of a delay time constant, reverse the direction of running of the motor, to bring the operating member into the intermediate stopping position at t ' 4 .
  • the motor stops when this position is detected.
  • the device is then in the ready state.
  • the passage detector by the opening dead point is replaced by a detector of the position of the switching bar.
  • the operation of the device is the same as that described on the figure 10 , the detection of the position of the bar corresponding to the separation of the contacts replacing the passage signal by the opening dead point.
  • the motor is a stepper motor controlled in angular position, if necessary with a position detection by a specific sensor 299.
  • the logic unit then controls the positioning of the motor according to the orders given on the lines opening command 286, reset control 288, closing control 290 and the state of the detector 292 of the triggered state of the apparatus.
  • the control in position of the motor makes it possible to eliminate the passage detector by the closing dead point and, if necessary, the passage detector by the opening neutral point, as well as the closing limit detections and the end of the race.
  • the invention is intended to be applicable to both single-cut devices and double-break devices.
  • the number of poles of the device can be any.
  • the engine used can be of any type accepting without tampering for a few hundred milliseconds a locked rotor operation.
  • the closing or opening limit switch is detected by passing the intensity of the supply current above a given threshold for a time greater than a given time constant.
  • auxiliary switches identical to those used to locate the indexed positions of neutral.
  • this alternative has the defect of increasing the number of auxiliary switches, thus reducing the reliability of the device.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Centrifugal Separators (AREA)
  • Control Of Direct Current Motors (AREA)
  • Selective Calling Equipment (AREA)
  • Stopping Of Electric Motors (AREA)
EP02354180A 2002-01-24 2002-11-20 Appareillage électrique de coupure muni d'une commande motorisée et procédé de commande d'un tel appareillage Expired - Lifetime EP1331658B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0200857 2002-01-24
FR0200857A FR2835093B1 (fr) 2002-01-24 2002-01-24 Appareillage electrique de coupure muni d'une commande motorisee et procede de commande d'un tel appareil

Publications (2)

Publication Number Publication Date
EP1331658A1 EP1331658A1 (fr) 2003-07-30
EP1331658B1 true EP1331658B1 (fr) 2010-08-25

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EP02354180A Expired - Lifetime EP1331658B1 (fr) 2002-01-24 2002-11-20 Appareillage électrique de coupure muni d'une commande motorisée et procédé de commande d'un tel appareillage

Country Status (9)

Country Link
US (1) US6621389B2 (es)
EP (1) EP1331658B1 (es)
JP (1) JP4212907B2 (es)
CN (1) CN1260752C (es)
AT (1) ATE479195T1 (es)
CA (1) CA2415335C (es)
DE (1) DE60237423D1 (es)
ES (1) ES2347951T3 (es)
FR (1) FR2835093B1 (es)

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Publication number Priority date Publication date Assignee Title
FR2895140B1 (fr) * 2005-12-20 2008-01-18 Areva T & D Sa Dispositif de commande d'un appareillage electrique
US7986203B2 (en) * 2008-02-19 2011-07-26 Siemens Industry, Inc. Multi-pole armature interlock for circuit breakers
GB0915379D0 (en) * 2009-09-03 2009-10-07 Deepstream Technologies Ltd Miniature circuit breaker
CN102969209B (zh) * 2012-12-03 2016-02-10 杭州凯雅捷科技有限公司 一种自动重合闸传动机构
CN103400727B (zh) * 2013-08-15 2015-07-08 温州圣普电气有限公司 一种断路器侧位操控装置
JP6708850B2 (ja) * 2014-04-14 2020-06-10 林田　建一 地震時における切換スイッチ自動切断装置
HUE052147T2 (hu) * 2014-05-20 2021-04-28 Abb Schweiz Ag Kapcsolóeszköz egy villamos áramkörhöz és eljárás ilyen kapcsolóeszköz vezérlésére
DE202014103419U1 (de) 2014-07-24 2014-10-27 Johnson Electric Germany GmbH & Co. KG Fernantrieb zur Einschubmontage in Leistungsschalter
DE202014103418U1 (de) 2014-07-24 2014-10-27 Johnson Electric Germany GmbH & Co. KG Fernantrieb mit verbesserten Isolationseigenschaften zur Einschubmontage in Leistungsschaltern
WO2016173464A1 (zh) * 2015-04-28 2016-11-03 上海电科电器科技有限公司 断路器的操作机构的二级锁扣机构
BR112018003926B1 (pt) * 2015-08-28 2024-03-05 Maschinenfabrik Reinhausen Gmbh Comutador de carga para um comutador de derivação de carga e comutador principal contínuo e comutador de desconexão para o mesmo
CN105609383B (zh) * 2016-03-23 2017-10-10 德力西电气有限公司 分合闸操作控制装置和断路器
DE102017211662A1 (de) * 2017-07-07 2019-01-10 Siemens Aktiengesellschaft Eingabesystem zur Ansteuerung eines elektrischen Geräts
CN107633965B (zh) * 2017-09-11 2018-09-04 树实科技（上海）有限公司 智能开关面板
KR20210023033A (ko) * 2019-08-21 2021-03-04 엘지전자 주식회사 전력 변환 회로, 인버터 장치 및 인버터 장치의 구동 방법

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NL300256A (es) * 1962-11-08
US4990873A (en) * 1989-06-30 1991-02-05 Westinghouse Electric Corp. Reverse switching means for motor operator
US5323131A (en) * 1993-02-26 1994-06-21 General Electric Company Molded case circuit breaker motor operator
US5693923A (en) * 1996-04-15 1997-12-02 Eaton Corporation Motor operator for electrical switches
US6326870B1 (en) * 1999-08-26 2001-12-04 General Electric Company Remote operating apparatus and method for a circuit breaker handle
US6423917B2 (en) * 2000-03-17 2002-07-23 General Electric Company Self-disengaging circuit breaker motor operator
US6380829B1 (en) * 2000-11-21 2002-04-30 General Electric Company Motor operator interlock and method for circuit breakers

Also Published As

Publication number Publication date
CN1434471A (zh) 2003-08-06
CA2415335C (en) 2008-11-18
JP2003217425A (ja) 2003-07-31
FR2835093B1 (fr) 2004-03-12
ATE479195T1 (de) 2010-09-15
FR2835093A1 (fr) 2003-07-25
EP1331658A1 (fr) 2003-07-30
CA2415335A1 (en) 2003-07-24
US20030137373A1 (en) 2003-07-24
US6621389B2 (en) 2003-09-16
ES2347951T3 (es) 2010-11-26
CN1260752C (zh) 2006-06-21
DE60237423D1 (de) 2010-10-07
JP4212907B2 (ja) 2009-01-21

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