WO2001071751A2 - Circuit breaker accessory reset system - Google Patents
Circuit breaker accessory reset system Download PDFInfo
- Publication number
- WO2001071751A2 WO2001071751A2 PCT/US2001/008194 US0108194W WO0171751A2 WO 2001071751 A2 WO2001071751 A2 WO 2001071751A2 US 0108194 W US0108194 W US 0108194W WO 0171751 A2 WO0171751 A2 WO 0171751A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- axis
- latch
- trip arm
- pivot
- reset
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release 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
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
- H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H2083/205—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition having shunt or UVR tripping device with integrated mechanical energy accumulator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
Definitions
- the present invention relates to a circuit breaker accessory, and, more particularly, to a reset system for a circuit breaker accessory.
- an accessory in an exemplary embodiment of the invention, includes a trip arm biased by a spring to pivot in a clockwise direction about a trip arm pivot.
- a latch is arranged to pivot about a latch pivot and has the trip arm acting on a latch surface on the latch to push the latch in a counter clockwise direction about the latch pivot.
- An electromechanical device is positioned in the accessory having a plunger that acts on the latch by pulling it such that it is holding with the trip arm. When a signal is provided to the electromechanical device, the plunger is moved allowing the trip arm, being pushed by the stored energy spring, push the latch out of the way and interface the operating mechanism.
- a reset lever is arranged to pivot about the latch pivot.
- the reset lever is configured to interface the operating mechanism, and has a drive portion for interfacing the trip arm for resetting.
- a portion extending from an operating handle interfaces the reset lever causing it to pivot, wherein the drive portion interfaces the trip arm to drive the trip arm about the trip arm pivot into the latched and ready to operate position.
- This invention has many advantages over the prior art, including but not limited to the ability to reduce the quantity of reset force required to reset the accessory and to provide positional tolerance with added reset over-travel within the accessory.
- Figure 1 is an isometric view of a circuit breaker
- Figure 2 is an exploded perspective view of a circuit breaker including a trip actuator of the present invention
- Figure 3 is an isometric view of the trip actuator and operating mechanism of Figure 2;
- Figure 4 is a side view depicting the general operation of the circuit breaker operating mechanism of Figure 3;
- Figure 5 is an isometric view of the trip actuator of Figure 3 in a released discharged state;
- Figure 6 is an isometric front view of the trip actuator of Figure 3in the released discharged state having its cover removed and its frame partially cut away;
- Figure 7 is an isometric rear view of the trip actuator of Figure 3 in the released discharged state having its cover removed and its frame partially cut-away.
- Figure 8 is an isometric view of the trip actuator of Figure 3 in a released discharged state having a latch removed from the frame;
- Figure 9 is a side view of the trip actuator of Figure 3 in a latched and ready to operate state
- Figure 10 is a side view of the trip actuator of Figure 3 in a tripped released state.
- Figure 11 is a side view of the trip actuator of Figure 3 in a reset state
- Figure 12 is a side view of the trip actuator of Figure 3 beyond the reset state.
- Molded case circuit breaker 20 is generally interconnected within a protected circuit between multiple phases of a power source (not shown) at line end 21 and a load to be protected (not shown) at load end 22.
- Molded case circuit breaker 20 includes a housing 24 with a base 25, a mid cover 26 and a top cover 27.
- An operating handle 28 passes through top cover 27 and interconnects with a circuit breaker operating mechanism 30.
- a trip actuator 66 is generally positioned and configured within mid cover 26 to interface operating mechanism 30.
- FIG 2 an exploded view of molded case circuit breaker 20 is provided.
- a series of circuit breaker cassettes 32 are generally well known and may contain, for example, a rotary type contact structure.
- Circuit breaker cassettes 32 are seated approximately upstanding within base 25, and one of the cassettes 32 includes operating mechanism 30 positioned thereon.
- One cassette 32 is provided for each phase of the electrical distribution circuit.
- Each cassette 32 includes one or more contact pairs therein for passage of current when the contacts are closed and for preventing passage of current when the contact pairs are opened.
- Each cassette 32 is commonly operated by a first bar 34 and a second bar 36 that interface with the internal mechanisms of cassettes 32 and with operating mechanism 30 such that operating mechanism 30 operates all cassettes 32. It is contemplated that the number of phases, or specific type of cassette utilized, can vary accordmg to factors including, but not limited to, the type of load circuit being protected and the type of line input being provided to the circuit breaker 20.
- circuit breaker operating mechanism 30 includes a frame 38 having spaced apart sidewalls.
- An operating handle-yoke 40 generally fits over frame 38.
- Operating handle 28 is interconnected with operating handle-yoke 40.
- Operating mechanism 30 includes an operating mechanism cover 42 with a handle opening 44 formed therein allowing operating handle 28 to pass therethrough.
- Handle-yoke 40 includes a reset tab 46 depending generally pe ⁇ endicularly therefrom to allow interface with trip actuator 66, and more specifically to interact with a reset tab 72 of trip actuator 66.
- Frame 38 includes a secondary latch 52 pivotally secured thereto.
- Secondary latch 52 includes a secondary latch tab 50 depending generally pe ⁇ endicularly therefrom. Secondary latch tab 50 interfaces with a trip paddle 96 extending from trip actuator 66.
- trip actuator 66 Upon assembly, trip actuator 66 is positioned such that the trip paddle 96 is adjacent to latch tab 50, and a reset tab 72 is adjacent to reset tab 46. This is generally accomplished by seating trip actuator 66 alongside operating mechanism 30 within mid cover 26 ( Figures 1 and 2). Referring to Figures 3 and 4, the operation of the circuit breaker operating mechanism 30 will be generally described. Figure 4 shows the operating mechanism 30 in three discrete positions: the "ON” position, the "OFF” position and the "RESET” position. Upon activation of trip actuator 66, trip paddle 96 will be displaced generally in a forward direction (toward reset tab 72) and will contact latch trip tab 50, displacing tab 50 from the "Latched" position to the "Unlatched” position as shown in Figure 3.
- trip actuator 66 is shown.
- Frame 100 includes a back wall 112 with two sidewalls 114, 116 depending substantially pe ⁇ endicular therefrom. The sidewalls 114, 116 extend substantially parallel to each other, and are joined by a pair of frame pins 118, 119 that extend from side wall 114 to side wall 116.
- Frame 100 is preferably formed from a single plate of metal.
- a cover 160 is positioned generally atop frame 100, having a front portion 162 supported by frame pin 118 and a rear portion 164 arranged over back wall 112.
- Trip arm 104 is hingedly secured to sidewalls 114, 116 by a trip arm pivot 120, which extends from side wall 114 to side wall 116.
- Trip arm 104 includes two hinge portions 122 which accept trip arm pivot 120, and a hinge support portion 124 that extends between hinge portions 122.
- Trip arm 104 also includes a latch portion 125 that extends downwardly from support portion 124 and along the outside of side wall 116.
- Latch portion 125 is configured with a cut out portion 123, which is generally provided to reduce the mass of trip arm 104.
- Trip paddle 96 depends substantially pe ⁇ endicularly latch portion 125.
- a latch surface 126 is formed on an edge of latch portion 125 opposite trip paddle 96.
- An arcuate cam surface 127 is formed on an edge of latch portion 125 opposite reset tab 72.
- Trip arm 104 is preferably formed from a single plate of metal.
- Trip spring 106 is shown as a torsion spring disposed around trip arm pivot 120. One end of trip spring 106 is secured by back wall 112 of frame 100, while the other end is positioned beneath hinge support portion 124 of the trip arm 1 4. Trip spring 106 acts to bias trip arm 104 in the clockwise direction, as shown in Figure 5.
- Latch 110 is formed as a substantially solid shaft having a boss 128 disposed thereon.
- Figure 8 shows latch 110 disasembled.
- a slot 129 formed in boss 128 accepts a head 131 of a plunger 130, which extends from flux shifter 102.
- the ends of latch 110 are pivotally secured to frame sidewalls 114 and 116 by a latch pivot 132.
- a latch pin 134 is secured to an end of latch 110, and extends from latch 110 through an arcuate slot 136 disposed in side wall 116.
- Latch pin 134 is arranged to interact with the latch surface 126 of trip arm 104 in a manner described hereinbelow.
- Bell alarm lever 152 is optionally connected to latch 110 to activate a bell alarm (not shown) when latch 110 is displaced.
- Reset lever 108 includes side arms 138 that extend from a central support 140. Side arms 138 extend along side walls 114, 116 and are pivotally secured to side walls 114, 116 by latch pivot 132. Reset lever 108 is biased in the counterclockwise direction about latch pivot 132 due to a spring 139 having one end attached to a slot 141 in central support 140 and the other end attached to a portion (not shown) of cover 160 proximate to frame pin 118. Latch pin 134 extends through an arcuate slot 137 in one side arm 138. Reset tab 72 and a reset roller 142 depend substantially pe ⁇ endicularly from a side arm 138 proximate side wall 116.
- Reset tab 72 and reset roller 142 extend through an arcuate slot 144 formed in sidewall 116.
- Slot 144 has an end 145 that is opposite a side 73 of reset tab 72.
- Reset roller 142 is positioned opposite arcuate cam surface 127 and is configured to roll on cam surface 127, for example, by being revolvably disposed on a pin (not shown) depending substantially pe ⁇ endicularly from a side arm 138.
- Flux shifter 102 is an electromechanical device mounted to rear wall 112 of the frame 100.
- the construction and operation of flux shifter 102 is known in the art and is similar in operation to that described in U.S. Patent No. 5,453,724.
- Flux shifter 102 includes plunger 130, which slidably extends from a body 146. Plunger 130 is releasably secured by a magnet (not shown) within body 146.
- Flux shifter 102 is arranged to receive a triggering signal (e.g., a trip signal) from an electrical device (e.g., a trip unit).
- a triggering signal e.g., a trip signal
- an electrical device e.g., a trip unit
- FIG. 9 shows trip actuator 66 in a latched and ready to operate state.
- trip spring 106 is loaded to bias the trip arm 104 in a clockwise direction about trip arm pivot 120.
- Latch surface 126 of trip arm 104 acts with a force against latch pin 134 that creates a counterclockwise moment about the axis of latch pivot 132.
- Latch 110 is held in an upright position by plunger 130, and plunger 130 is held in tension by a magnet (not shown) disposed in body 146 of flux shifter 102.
- a force of plunger 130 on the latch 110 creates a clockwise moment about the axis of latch pivot 132.
- the clockwise moment created by the plunger tension opposes the counterclockwise moment created by latch surface 126 against latch pin 134 and holds latch 110 in the upright position against the force of trip arm 104.
- the plunger tension acting on latch 110 can generally be much less than the force of trip arm 104 (due to spring 106) because of the relationship between the plunger tension, the clockwise moment and its respective moment arm (not shown), and the force of trip arm 104, the counterclockwise moment and its respective moment arm (not shown). This is described in greater detail in U.S. Patent Application Serial Number 09/xxx,xxx (GE Docket Number 41PR-7704).
- Trip actuator 66 comes to rest in the tripped released state shown in Figure 10, where latch 110 is prevented from rotating further in the counterclockwise direction by contact with frame pin 119 and trip arm 104 is prevented from rotating further in the clockwise direction by contact with reset tab 72. Note the movement of latch pin 134 within slot 136 in the counterclockwise direction (as viewed in Figures 8 and 9) due to the release of plunger tension (e.g., due to the deactivation of the magnet within flux shifter 102).
- Trip actuator 66 is reset (i.e. placed in the latched and ready to operate state of Figure 6) by the application of reset force to operating handle 28.
- reset tab 46 of operating handle 28 pushes reset tab 72 of the trip actuator 66.
- This action causes reset lever 108 to pivot in a clockwise direction about latch pivot 132 against the bias of spring 139.
- the clockwise reset motion causes reset roller 142 to contact cam surface 127 of trip arm 104.
- This state (reset state) is shown in Figure 11. (Also note the extension of spring 139 as compared to Figure 9 where there is no reset force.
- roller 142 on cam surface 127 rotates trip arm 104 in the counterclockwise direction about pivot 120 against the bias of spring 106.
- Cam surface 127 and the geometries of trip arm 104 about its pivot 120, and reset lever 108 about its pivot 132 are configured to cause the multiplication of reset driving force applied by roller 142 as force is applied to reset tab 72.
- This configuration is generally an arcuate shaped cam surface 127. This results in a driving force that remains constant, or decreases, as reset force is applied to reset tab 72, even as spring 106 is further charged. Therefore, as reset force is applied, i.e., to operating handle 28, reset tab 46 pushes reset tab 72 until latch surface 126 is at or beyond latch pin 134.
- Latch pin 134 is at the position of Figure 8 (i.e., the plunger tension has been reapplied). If the reset force is released, reset lever 108 will be pulled counterclockwise by spring 139 until side 73 of reset tab 72 is stopped by end 145 of slot 144. The engagement between latch pin 134 and latch surface 126 will hold trip arm 104 against the bias of spring 106, as described above in the latched state ( Figure 8).
- roller 142 will continue to apply a driving force to trip arm 104 via cam surface 127. Due to the arcuate shape of cam surface 127, continued rotation of trip arm 104 is allowed. Also, due to the shape, the continued driving force by roller 142 will impart less rotation to trip arm 104 about pivot 120. This reduced rotation of trip arm 104 causes the driving force to be opposed by a constant or reduced bias of spring 106.
- cam surface 127 allowing for decreased rotation of trip unit 104 about pivot 120 also results in a large amount of reset force over-travel, (e.g., operating handle 28 can be rotated to the reset position in Figure 4 or further to the left) without imparting unwanted motion to other components (e.g., within trip unit 66, operating mechanism 30, or both).
- the release of reset force to operating handle 28 returns the system to the latched position as described hereinabove.
- the reset system described herein allows for over-travel in the motion of the reset components with imparting unwanted motion. This over-travel allows for a more compliant interface between actuator 66 and operating mechanism 30. This is especially effective for overcoming tolerance variation in assembled components. Furthermore, by reducing the opposing force of spring 106 during application of reset force, the overall amount of reset force needed is decreased.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01916660A EP1194939B1 (en) | 2000-03-16 | 2001-03-14 | Circuit breaker accessory reset system |
PL01365522A PL365522A1 (en) | 2000-03-16 | 2001-03-14 | Circuit breaker accessory reset system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/526,945 US6421217B1 (en) | 2000-03-16 | 2000-03-16 | Circuit breaker accessory reset system |
US09/526,945 | 2000-03-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001071751A2 true WO2001071751A2 (en) | 2001-09-27 |
WO2001071751A3 WO2001071751A3 (en) | 2002-01-31 |
Family
ID=24099479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/008194 WO2001071751A2 (en) | 2000-03-16 | 2001-03-14 | Circuit breaker accessory reset system |
Country Status (4)
Country | Link |
---|---|
US (1) | US6421217B1 (en) |
EP (1) | EP1194939B1 (en) |
PL (1) | PL365522A1 (en) |
WO (1) | WO2001071751A2 (en) |
Cited By (1)
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EP3333875A4 (en) * | 2015-08-04 | 2019-03-20 | Zhejiang Chint Electrics Co., Ltd. | Circuit breaker tripping mechanism |
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US7369022B2 (en) * | 2006-01-23 | 2008-05-06 | Eaton Corporation | Auxiliary switch sub-assembly and electrical switching apparatus employing the same |
US7319373B2 (en) * | 2006-01-23 | 2008-01-15 | Eaton Corporation | Electrical switching apparatus and terminal housing therefor |
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US8471654B1 (en) * | 2012-10-25 | 2013-06-25 | General Electric Company | Circuit protection device and flux shifter for a circuit protection device |
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US9281151B2 (en) * | 2013-12-19 | 2016-03-08 | Siemens Industry, Inc. | Lever arm for a shunt trip device |
US11195682B2 (en) * | 2017-09-25 | 2021-12-07 | Eaton Intelligent Power Limited | Circuit interrupter, trip deck assembly, and support for switch therefor |
CN115172109A (en) * | 2021-04-01 | 2022-10-11 | 上海正泰智能科技有限公司 | Quick tripping device and circuit breaker |
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FR2578092B1 (en) | 1985-02-25 | 1987-03-06 | Merlin Gerin | CIRCUIT BREAKER WITH STATIC TRIGGER WITH SAMPLING AND LOCK AT THE LAST SIGNAL CRETE |
FR2578112B1 (en) | 1985-02-25 | 1988-03-18 | Merlin Gerin | CIRCUIT BREAKER WITH STATIC TRIGGER WITH DIGITAL PROCESSING CHAIN SHUNTE BY AN ANALOGUE PROCESSING CHAIN |
US4642431A (en) | 1985-07-18 | 1987-02-10 | Westinghouse Electric Corp. | Molded case circuit breaker with a movable electrical contact positioned by a camming spring loaded clip |
DE3679291D1 (en) | 1985-10-31 | 1991-06-20 | Merlin Gerin | KINEMATIC TRANSMISSION CHAIN BETWEEN THE CONTROL MECHANISM AND THE POLES OF AN ELECTRIC LOAD SWITCH WITH A SPRAYED INSULATION HOUSING. |
ES2020284B3 (en) | 1986-02-28 | 1991-08-01 | Merlin Gerin | CURRENT CUTTING DEVICE WITH STATIC SWITCH AND PROTECTION CIRCUIT BREAKER. |
FR2598266B1 (en) | 1986-04-30 | 1994-02-18 | Merlin Et Gerin | INSTANT STATIC TRIGGER FOR A LIMITING CIRCUIT BREAKER |
FR2602610B1 (en) | 1986-08-08 | 1994-05-20 | Merlin Et Gerin | STATIC TRIGGER OF AN ELECTRIC CIRCUIT BREAKER WITH CONTACT WEAR INDICATOR |
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US4733211A (en) | 1987-01-13 | 1988-03-22 | General Electric Company | Molded case circuit breaker crossbar assembly |
FR2616583B1 (en) | 1987-06-09 | 1995-01-06 | Merlin Gerin | CONTROL MECHANISM OF A MINIATURE ELECTRIC CIRCUIT BREAKER |
GB8713791D0 (en) | 1987-06-12 | 1987-07-15 | Bicc Plc | Electric circuit breaking apparatus |
FR2616957A1 (en) | 1987-06-18 | 1988-12-23 | Merlin Gerin | HIGH PRESSURE ARC EXTINGUISHING CHAMBER |
FR2617633B1 (en) | 1987-07-02 | 1989-11-17 | Merlin Gerin | CIRCUIT BREAKER WITH ROTATING ARC AND EXPANSION |
FR2621170A1 (en) | 1987-09-25 | 1989-03-31 | Merlin Gerin | BREAKER-LIMIT |
DE3852455T2 (en) | 1987-10-01 | 1996-04-18 | Cge Spa | Manual and electromagnetically operated contact arrangement for current-limiting switches. |
FR2622347B1 (en) | 1987-10-26 | 1995-04-14 | Merlin Gerin | CUTTING DEVICE FOR A MULTIPOLAR CIRCUIT BREAKER WITH DOUBLE ROTARY CONTACT |
FR2622737B1 (en) | 1987-11-04 | 1995-04-14 | Merlin Gerin | SELF-EXPANSIONAL ELECTRIC CIRCUIT BREAKER WITH VARIABLE EXTINCTION CHAMBER VOLUME |
FR2624649B1 (en) | 1987-12-10 | 1990-04-06 | Merlin Gerin | HIGH CALIBER MULTIPOLAR CIRCUIT BREAKER CONSISTING OF TWO ADJUSTED BOXES |
FR2624666B1 (en) | 1987-12-10 | 1990-04-06 | Merlin Gerin | |
FR2624650B1 (en) | 1987-12-10 | 1990-04-06 | Merlin Gerin | MULTIPOLAR CIRCUIT BREAKER WITH HIGH CALIBER MOLDED HOUSING |
US4831221A (en) | 1987-12-16 | 1989-05-16 | General Electric Company | Molded case circuit breaker auxiliary switch unit |
FR2626713B1 (en) | 1988-01-28 | 1990-06-01 | Merlin Gerin | ELECTROMAGNETIC TRIGGER WITH TRIGGER THRESHOLD ADJUSTMENT |
FR2626724B1 (en) | 1988-01-28 | 1993-02-12 | Merlin Gerin | STATIC TRIGGER COMPRISING AN INSTANTANEOUS TRIGGER CIRCUIT INDEPENDENT OF THE SUPPLY VOLTAGE |
FR2628259A1 (en) | 1988-03-01 | 1989-09-08 | Merlin Gerin | ELECTRICAL SHUT-OFF CIRCUIT BREAKER BY SHOCKPING OR EXPANSION OF INSULATING GAS |
FR2632771B1 (en) | 1988-06-10 | 1990-08-31 | Merlin Gerin | LOW VOLTAGE LIMITER CIRCUIT BREAKER WITH WATERPROOF CUTTING CHAMBER |
IT213976Z2 (en) | 1988-06-23 | 1990-03-05 | Cge Spa | STRUCTURE OF ELECTRIC CONTACTS IN WHICH THE AXIAL DRIVE FORCE IS ONLY A SMALL FRACTION OF THE FORCE EXERCISED ON THE CONTACTS. |
US4870531A (en) | 1988-08-15 | 1989-09-26 | General Electric Company | Circuit breaker with removable display and keypad |
FR2639148B1 (en) | 1988-11-16 | 1991-08-02 | Merlin Gerin | MAGNETIC TRIGGER WITH WIDE TRIGGER THRESHOLD ADJUSTMENT RANGE |
FR2641898B1 (en) | 1989-01-17 | 1991-03-15 | Merlin Gerin | SELF-BLOWING ELECTRIC CIRCUIT BREAKER |
US4884164A (en) | 1989-02-01 | 1989-11-28 | General Electric Company | Molded case electronic circuit interrupter |
EP0385886B1 (en) | 1989-02-27 | 1994-11-09 | Merlin Gerin | Circuit breaker with a rotating arc and with a centrifugal effect of the extinguishing gas |
FR2644624B1 (en) | 1989-03-17 | 1996-03-22 | Merlin Gerin | ELECTRICAL CIRCUIT BREAKER WITH SELF-EXPANSION AND INSULATING GAS |
US4951019A (en) | 1989-03-30 | 1990-08-21 | Westinghouse Electric Corp. | Electrical circuit breaker operating handle block |
US5200724A (en) | 1989-03-30 | 1993-04-06 | Westinghouse Electric Corp. | Electrical circuit breaker operating handle block |
US5004878A (en) | 1989-03-30 | 1991-04-02 | General Electric Company | Molded case circuit breaker movable contact arm arrangement |
SE461557B (en) | 1989-04-28 | 1990-02-26 | Asea Brown Boveri | CONTACT DEVICE FOR ELECTRICAL CONNECTORS |
FR2646738B1 (en) | 1989-05-03 | 1991-07-05 | Merlin Gerin | STATIC TRIGGER FOR A THREE-PHASE NETWORK PROTECTION CIRCUIT BREAKER FOR DETECTING THE TYPE OF FAULT |
FR2648952B1 (en) | 1989-06-26 | 1991-09-13 | Merlin Gerin | LIMITING CIRCUIT BREAKER HAVING AN ELECTROMAGNETIC EFFECT CONTACT DELAY RETARDER |
US4943888A (en) | 1989-07-10 | 1990-07-24 | General Electric Company | Electronic circuit breaker using digital circuitry having instantaneous trip capability |
FR2650434B1 (en) | 1989-07-26 | 1995-11-24 | Merlin Gerin | LOW VOLTAGE CIRCUIT BREAKER WITH MULTIPLE CONTACTS AND HIGH CURRENTS |
DE8909831U1 (en) | 1989-08-16 | 1990-12-20 | Siemens Ag, 8000 Muenchen, De | |
FR2651915B1 (en) | 1989-09-13 | 1991-11-08 | Merlin Gerin | ULTRA-FAST STATIC CIRCUIT BREAKER WITH GALVANIC ISOLATION. |
FR2651919B1 (en) | 1989-09-13 | 1995-12-15 | Merlin Gerin | CIRCUIT BREAKER COMPRISING AN ELECTRONIC TRIGGER. |
FR2655766B1 (en) | 1989-12-11 | 1993-09-03 | Merlin Gerin | MEDIUM VOLTAGE HYBRID CIRCUIT BREAKER. |
FR2659177B1 (en) | 1990-03-01 | 1992-09-04 | Merlin Gerin | CURRENT SENSOR FOR AN ELECTRONIC TRIGGER OF AN ELECTRIC CIRCUIT BREAKER. |
US5043688A (en) * | 1990-05-03 | 1991-08-27 | General Electric Company | Actuator-accessory interface unit for molded case circuit interrupter |
FR2661776B1 (en) | 1990-05-04 | 1996-05-10 | Merlin Gerin | INSTANT TRIGGER OF A CIRCUIT BREAKER. |
IT219700Z2 (en) | 1990-05-29 | 1993-04-26 | Cge Spa | CLAMPING FIXING DEVICE WITH SNAP LOCK FOR CONTROL AND / OR SIGNALING UNIT |
FR2663175A1 (en) | 1990-06-12 | 1991-12-13 | Merlin Gerin | STATIC SWITCH. |
FR2663457B1 (en) | 1990-06-14 | 1996-06-07 | Merlin Gerin | ELECTRICAL CIRCUIT BREAKER WITH SELF-EXPANSION AND ARC ROTATION. |
FR2663780B1 (en) | 1990-06-26 | 1992-09-11 | Merlin Gerin | HIGH VOLTAGE CIRCUIT BREAKER WITH GAS INSULATION AND PNEUMATIC CONTROL MECHANISM. |
FR2665571B1 (en) | 1990-08-01 | 1992-10-16 | Merlin Gerin | ELECTRIC CIRCUIT BREAKER WITH ROTATING ARC AND SELF - EXPANSION. |
US5120921A (en) | 1990-09-27 | 1992-06-09 | Siemens Energy & Automation, Inc. | Circuit breaker including improved handle indication of contact position |
FR2671228B1 (en) | 1990-12-26 | 1996-07-26 | Merlin Gerin | CIRCUIT BREAKER COMPRISING AN INTERFACE CARD WITH A TRIGGER. |
US5262744A (en) | 1991-01-22 | 1993-11-16 | General Electric Company | Molded case circuit breaker multi-pole crossbar assembly |
US5140115A (en) | 1991-02-25 | 1992-08-18 | General Electric Company | Circuit breaker contacts condition indicator |
US5184717A (en) | 1991-05-29 | 1993-02-09 | Westinghouse Electric Corp. | Circuit breaker with welded contacts |
FR2677168B1 (en) | 1991-06-03 | 1994-06-17 | Merlin Gerin | MEDIUM VOLTAGE CIRCUIT BREAKER WITH REDUCED CONTROL ENERGY. |
FR2679039B1 (en) | 1991-07-09 | 1993-11-26 | Merlin Gerin | ELECTRICAL ENERGY DISTRIBUTION DEVICE WITH INSULATION CONTROL. |
FR2682529B1 (en) | 1991-10-10 | 1993-11-26 | Merlin Gerin | CIRCUIT BREAKER WITH SELECTIVE LOCKING. |
FR2682531B1 (en) | 1991-10-15 | 1993-11-26 | Merlin Gerin | MULTIPOLAR CIRCUIT BREAKER WITH SINGLE POLE BLOCKS. |
FR2682530B1 (en) | 1991-10-15 | 1993-11-26 | Merlin Gerin | RANGE OF LOW VOLTAGE CIRCUIT BREAKERS WITH MOLDED HOUSING. |
FR2682808B1 (en) | 1991-10-17 | 1997-01-24 | Merlin Gerin | HYBRID CIRCUIT BREAKER WITH AXIAL BLOWING COIL. |
FR2682807B1 (en) | 1991-10-17 | 1997-01-24 | Merlin Gerin | ELECTRIC CIRCUIT BREAKER WITH TWO VACUUM CARTRIDGES IN SERIES. |
US5260533A (en) | 1991-10-18 | 1993-11-09 | Westinghouse Electric Corp. | Molded case current limiting circuit breaker |
US5341191A (en) | 1991-10-18 | 1994-08-23 | Eaton Corporation | Molded case current limiting circuit breaker |
TW200593B (en) | 1991-10-24 | 1993-02-21 | Fuji Electric Co Ltd | |
FR2683089B1 (en) | 1991-10-29 | 1993-12-31 | Merlin Gerin | OPERATING MECHANISM FOR TETRAPOLAR CIRCUIT BREAKER. |
FR2683675B1 (en) | 1991-11-13 | 1993-12-31 | Merlin Gerin | METHOD AND DEVICE FOR ADJUSTING A TECHNICAL TRIGGER WITH BILAME. |
FR2683938B1 (en) | 1991-11-20 | 1993-12-31 | Gec Alsthom Sa | CIRCUIT BREAKER WITH SULFUR HEXAFLUORIDE AND APPLICATIONS TO CELLS AND PREFABRICATED STATIONS AND SUBSTATIONS. |
FR2683940B1 (en) | 1991-11-20 | 1993-12-31 | Gec Alsthom Sa | MEDIUM VOLTAGE CIRCUIT BREAKER FOR INDOOR OR OUTDOOR USE. |
US5172087A (en) | 1992-01-31 | 1992-12-15 | General Electric Company | Handle connector for multi-pole circuit breaker |
FR2687250A1 (en) | 1992-02-07 | 1993-08-13 | Merlin Gerin | MULTIPLE CONTACTING CUTTING DEVICE. |
FR2687249B1 (en) | 1992-02-07 | 1994-04-01 | Merlin Gerin | CONTROL MECHANISM OF A MOLDED BOX CIRCUIT BREAKER. |
FR2688626B1 (en) | 1992-03-13 | 1994-05-06 | Merlin Gerin | CIRCUIT BREAKER WITH MOLDED BOX WITH BRIDGE OF BRAKE CONTACTS AT THE END OF PULSE STROKE. |
FR2688625B1 (en) | 1992-03-13 | 1997-05-09 | Merlin Gerin | CONTACT OF A MOLDED BOX CIRCUIT BREAKER |
FR2690563B1 (en) | 1992-04-23 | 1997-05-09 | Merlin Gerin | PLUG-IN CIRCUIT BREAKER WITH MOLDED HOUSING. |
US5198956A (en) | 1992-06-19 | 1993-03-30 | Square D Company | Overtemperature sensing and signaling circuit |
FR2693027B1 (en) | 1992-06-30 | 1997-04-04 | Merlin Gerin | SELF-EXPANSION SWITCH OR CIRCUIT BREAKER. |
US5552755A (en) | 1992-09-11 | 1996-09-03 | Eaton Corporation | Circuit breaker with auxiliary switch actuated by cascaded actuating members |
KR940007922A (en) | 1992-09-28 | 1994-04-28 | 기타오카 다카시 | Circuit breaker |
FR2696275B1 (en) | 1992-09-28 | 1994-10-28 | Merlin Gerin | Molded case circuit breaker with interchangeable trip units. |
FR2696276B1 (en) | 1992-09-29 | 1994-12-02 | Merlin Gerin | Molded case circuit breaker with auxiliary contacts. |
FR2696866B1 (en) | 1992-10-13 | 1994-12-02 | Merlin Gerin | Three-position switch actuation mechanism. |
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FR2701159B1 (en) | 1993-02-03 | 1995-03-31 | Merlin Gerin | Mechanical and electrical locking device for a remote control unit for modular circuit breaker. |
FR2701617B1 (en) | 1993-02-16 | 1995-04-14 | Merlin Gerin | Circuit breaker with remote control and sectioning function. |
FR2701596B1 (en) | 1993-02-16 | 1995-04-14 | Merlin Gerin | Remote control circuit breaker with reset cam. |
EP0612090B1 (en) | 1993-02-16 | 1998-09-02 | Schneider Electric Sa | Rotation operating device for a circuit breaker |
ATE164027T1 (en) | 1993-03-17 | 1998-03-15 | Ellenberger & Poensgen | MULTIPOLE CIRCUIT SWITCH |
DE69406334T2 (en) | 1993-03-25 | 1998-02-26 | Schneider Electric Sa | Switchgear |
FR2703507B1 (en) | 1993-04-01 | 1995-06-02 | Merlin Gerin | Circuit breaker with a removable calibration device. |
US5479143A (en) | 1993-04-07 | 1995-12-26 | Merlin Gerin | Multipole circuit breaker with modular assembly |
FR2703824B1 (en) | 1993-04-07 | 1995-05-12 | Merlin Gerin | Multipolar limiter circuit breaker with electrodynamic repulsion. |
FR2704091B1 (en) | 1993-04-16 | 1995-06-02 | Merlin Gerin | Device for adjusting the tripping threshold of a multipole circuit breaker. |
FR2704354B1 (en) | 1993-04-20 | 1995-06-23 | Merlin Gerin | CONTROL MECHANISM OF A MODULAR ELECTRIC CIRCUIT BREAKER. |
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FR2707792B1 (en) | 1993-07-02 | 1995-09-01 | Telemecanique | Control and / or signaling unit with terminals. |
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DE9401785U1 (en) | 1994-02-03 | 1995-07-20 | Kloeckner Moeller Gmbh | Key switch with a locking mechanism |
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DE4408234C1 (en) | 1994-03-11 | 1995-06-14 | Kloeckner Moeller Gmbh | Housing with accessories for power switch |
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-
2000
- 2000-03-16 US US09/526,945 patent/US6421217B1/en not_active Expired - Lifetime
-
2001
- 2001-03-14 EP EP01916660A patent/EP1194939B1/en not_active Expired - Lifetime
- 2001-03-14 WO PCT/US2001/008194 patent/WO2001071751A2/en active Application Filing
- 2001-03-14 PL PL01365522A patent/PL365522A1/en unknown
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Publication number | Priority date | Publication date | Assignee | Title |
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US4506246A (en) * | 1983-05-09 | 1985-03-19 | Square D Company | Interlock scheme for high amperage molded case circuit breaker |
EP0620580A1 (en) * | 1993-04-16 | 1994-10-19 | Schneider Electric Sa | Auxiliary trip device for circuit breaker |
US5453724A (en) * | 1994-05-27 | 1995-09-26 | General Electric | Flux shifter assembly for circuit breaker accessories |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3333875A4 (en) * | 2015-08-04 | 2019-03-20 | Zhejiang Chint Electrics Co., Ltd. | Circuit breaker tripping mechanism |
US10490377B2 (en) | 2015-08-04 | 2019-11-26 | Zhejiang Chint Electrics Co., Ltd | Circuit breaker tripping mechanism |
Also Published As
Publication number | Publication date |
---|---|
US6421217B1 (en) | 2002-07-16 |
WO2001071751A3 (en) | 2002-01-31 |
EP1194939A2 (en) | 2002-04-10 |
EP1194939B1 (en) | 2008-07-30 |
PL365522A1 (en) | 2005-01-10 |
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