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262results about "Switches with electromagnetic release" patented technology
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Medium-voltage circuit-breaker
InactiveUS8138440B2Electromagnetically operated protective switchesHigh-tension/heavy-dress switchesElectrical conductorComputer module
Owner:ARCOLINE
Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device
InactiveUS7098761B2Switches with electromagnetic openingTwo pole connectionsLockout MechanismEmbedded system
Resettable circuit interrupting devices, such as GFCI devices, that include a reset lockout mechanism, an independent trip mechanism and reverse wiring protection. A conical reset plunger is notched to force a successful test before reset.
Owner:LEVITON MFG
Leakage current detection and interruption circuit
InactiveUS20060146456A1Emergency protective arrangement detailsSwitch operated by earth fault currentsElectricityDrain current
A circuit is disclosed for disconnecting a power source upon the detection of a leakage. The circuit comprises a disconnect switch for disconnecting the power source. A primary circuit controls the disconnect switch. A secondary circuit senses a leakage current. An optical switch interconnects the primary circuit and the secondary circuit for opening the disconnect switch upon the secondary circuit sensing a leakage current. The circuit is suitable for use as a leakage current detection and interruption circuit for completely electrically disconnecting and isolating the power source and the primary circuit from the secondary circuit.
Owner:TECH RES
Self-test gfci device with dual solenoid coil electric control
ActiveUS20150200533A1Prevent trippingChoose accuratelyProtective switch detailsSwitches with electromagnetic openingDual coilEngineering
A circuit interrupting device having a dual-coil solenoid for delivering an increased magnetic field to the solenoid plunger when a fault is detected and it is desired to place the device into a tripped condition. Independent switching devices control the flow of current through the respective coils of the solenoid and a third switching device controls the operation of the two coil driving switch devices. A detection circuit detects faults and controls the third switching device to activate the coil driving switching devices when a fault is detected. A programmable device runs a self-test program to determine whether the device is operating properly and faults can be detected. The programmable device can also independently control the operation of the two coil driving switching devices.
Owner:HUBBELL INC
Remote operated circuit breaker
A circuit breaker having a movable contact arm for opening and closing the circuit which is controlled separately by a circuit breaker mechanism for circuit protection and by a switch lever mechanism which does not require actuation of the circuit breaker mechanism to function. The switch lever may be activated by a solenoid or other suitable means, and various interlocking mechanical states exist among the elements that provide added safety features.
Owner:CARLING TECH
Ball actuator
InactiveUS6377146B1Reduced dimensionIncrease the itinerarySwitches with electromagnetic releaseProtective switch operating/release mechanismsJoystickOperating energy
A ball actuator 10 comprises a case 12 supporting a striker 14 with an energy storage spring 16, a control rod 18 movable in translation in a direction parallel to a geometric axis 19, detent balls 20 and control balls 22. When the rod is moved in translation by an electromagnetic relay 100, the control balls 22 escape and enable the detent balls 20 to be freed so that the striker 14 is released. Each control ball 22 is in contact with two detent balls 20 and with the rod 18 so that the forces applied to the rod 18 by the control balls 20 are much lower than the forces exerted by the striker 14 on the detent balls 22. A high-efficiency actuator is thus achieved requiring a low operating energy and with small overall dimensions.
Owner:SCHNEIDER ELECTRIC IND SAS
Leakage current detection and interruption circuit with improved shield
InactiveUS20070159740A1Emergency protective arrangement detailsSwitch operated by earth fault currentsElectricityPower cable
A circuit is disclosed for disconnecting a power source upon the detection of a leakage current comprising a power cable having an insulated first and a second wire. The power cable has a conductive shield surrounding the first and second wires with a drain wire electrically contacting the conductive shield. A disconnect switch is interposed between the power source and the power cable. A primary circuit controls the disconnect switch. A secondary circuit is connected to the drain wire for sensing a leakage current between the conductive shield and one of the first and second wires. An optical switch interconnects the primary circuit and the secondary circuit for opening the disconnect switch upon the secondary circuit sensing a leakage current.
Owner:TECH RES
Magnet switch with mechanism for preventing impact force imposed thereon
InactiveUS20080007373A1Avoid inhalationAvoid contactSwitches with electromagnetic openingElectromagnetically operated protective switchesMagnetic switchPlunger
A magnet switch for a starter of the present invention includes a plunger and a switch frame. The plunger has a stepped part at the outer peripheral surface thereof. The switch frame has a projection at an end face thereof, the end face being opposed to the outer peripheral surface of the plunger. Engagement of the stepped part of the plunger with the projection of the switch frame can lock forward movement of the plunger, so that no impact force is imposed on the movable contact and the insulator. Thus, deformation of the movable contact and breakage of the insulator can be prevented, and the axial length of the magnet switch can be reduced to reduce the size of the magnetic switch.
Owner:DENSO CORP
Parallel contact circuit breaker
InactiveUS6420948B1Reduce in quantityReduce capacitySwitches with electromagnetic openingTime-programme switchesElectrical connectionEngineering
A parallel pole magnetohydraulic circuit breaker (10), having a single trip element (271) and a pair of trip mechanisms (101, 102), achieving an increased current carrying capacity with reduced nuisance trips. The tip mechanisms (101, 102) are contained within separate housings (14, 16), with electrical connections (30, 40) and multipole trip mechanism (101, 102) communicating through apertures in the common wall (14'). Preferably, the armature (260) of the trip element (271) acts on a single trip mechanism (101, 102), which multiplies the available force to trigger a trip of the other tip mechanism.
Owner:SENSATA TECH MASSACHUSETTS INC
Leakage current detection interrupter with fire protection means
ActiveUS20100046128A1Switch operated by current/voltage unbalanceInsulated cablesFire protectionEngineering
A leakage current detection interrupter with fire protection means comprising: (i) a movable assembly housing; (ii) two fixed contact holders each having a fixed contact point; (iii) ) two movable contact holders each having a fixed end and a movable end with a movable contact point; (iv) a movable assembly that moves between a first position and a second position; (v) a resetting component; (vi) a resetting component spring; (vii) an electromagnetic tripping component, which, when energized, which is responsive to a fault condition, causes the movable assembly to be in the second position from the first position; (viii) an leakage current protection circuit assembled on a printed circuit board for detecting the fault condition; and (ix) a set of three electrical wires: a first wire, a second wire, and a third wire to an appliance, wherein the first wire and the second wire are protected by a plurality of protective shields.
Owner:CHEN HENG
Compact Latching Mechanism for Switched Electrical Device
ActiveUS20130241677A1Switch operated by falling currentSwitch operated by earth fault currentsEngineeringAC power
A resettable switching apparatus, useful in a GFCI receptacle, has a space-efficient coaxial configuration in which a mechanical latching arrangement for resetting (i.e., closing) main switch contacts is disposed inside the trip solenoid. A movable carriage for the main contacts spans one end of the solenoid and has a latching portion in the solenoid that engages the inner end of a reset plunger in two sequential states (i.e., unlatched and latched). An electrical miswire feature is included to prevent the device from being reset until the AC power is properly connected to the device and inadvertent failure of the miswire feature due, for example, to dropping the device prior to installation is avoided. Also, an enhanced self-test, or auto-monitoring, feature is provided that is more robust than that which has been previously disclosed.
Owner:HUBBELL INC
Permanent-magnet ground fault circuit interrupter plug and its permanent-magnet mechanism therein
ActiveUS7170375B2Switches with electromagnetic openingCoupling device detailsEngineeringContact position
Owner:CHEN HENG
Reverse current relay
InactiveUS7479858B1Switch operated by earth fault currentsSwitches with electromagnetic releaseElectrical FailureReverse current
Contactor-circuit breaker comprising a control electromagnet and a protection device both capable of acting on mobile contacts in response respectively to a deliberate control and to a detected electrical fault, through a multi-pole device. An electromagnetic tripping device (41) is added onto a contact control mechanism (40). The protection device (30), preferably interchangeable, is connected to the electromagnet (20) through a control line (33B) and to the control mechanism (40) through a trip line (33A) so that it outputs an electrical power supply to the electromagnet on the control line, and in the case of a fault, a trip signal on the trip line. The electromagnet (20) is of the DC type, and the protection device (30) adapts its power supply voltage.
Owner:SCHNEIDER ELECTRIC IND SAS
Fault Interrupter and Load Break Switch
ActiveUS20090278635A1Increases voltage capacityEasy to extinguishElectromagnetically operated protective switchesHigh-tension/heavy-dress switchesTransformerEngineering
A fault interrupter and load break switch includes a trip assembly configured to automatically open a transformer circuit electrically coupled to stationary contacts of the switch upon the occurrence of a fault condition. The fault condition causes a Curie metal element electrically coupled to at least one of the stationary contacts to release a magnetic latch. The release causes a trip rotor of the trip assembly to rotate a rotor assembly. This rotation causes ends of a movable contact of the rotor assembly to electrically disengage the stationary contacts, thereby opening the circuit. The switch also includes a handle for manually opening and closing the electrical circuit in fault and non-fault conditions. Actuation of the handle coupled to the rotor assembly via a spring-loaded rotor causes the movable contact ends to selectively engage or disengage the stationary contacts.
Owner:EATON INTELLIGENT POWER LIMITED
Leakage circuit breaker
ActiveCN101740271AWith protective functionProtection securitySwitch operated by earth fault currentsSwitches with electromagnetic releaseReverse connectionControl circuit
Owner:SHANGHAI JIA AO ELECTRIC
Trip-free PCB mountable relay configuration and method
ActiveUS7161104B2Reduced dimensionLow costSwitches with electromagnetic releaseSelector switchesEngineeringPrinted circuit board
A method and assembly for use with a printed circuit board (PCB), the assembly comprising a relay assembly including a relay housing and a trip free reset assembly mounted within the housing and linked to other relay components mounted within the housing for manually resetting the relay after the relay is tripped and at least one pin linked to at least one of the relay components and including a distal end extending from the housing and suitable for direct connection to the PCB.
Owner:ROCKWELL AUTOMATION TECH
Circuit Breaker with Electronic Sensing and De-Latch Activation
ActiveUS20090174508A1Protective switch detailsSwitches with electromagnetic openingElectrical connectionEngineering
A circuit breaker and method includes a mechanical pole moveable between a latched position and an unlatched position to open an electrical connection between a pair of electrical contacts. An electronic tripping device is configured to respond to a sensor signal. The sensor signal is output from a condition sensor wherein upon receiving the sensor signal the electronic tripping device trips the mechanical pole into the unlatched position.
Owner:SIEMENS IND INC
Low cost user adjustment, resistance to straying between positions, increased resistance to ESD, and consistent feel
ActiveUS20080013238A1Improve system performanceLower-cost componentSwitches with electromagnetic openingElectric switchesOperation modeFail-safe
A user adjustment assembly for translating user-adjustable dial settings to tripping levels of an electronic trip unit includes a potentiometer and an adjustment button. The potentiometer is positioned inside a cover of the trip unit and includes a potentiometer button. The adjustment button is coupled to the potentiometer for mechanically adjusting it and includes an insulation disc for increasing resistance to electrostatic discharge, preventing contaminants from entering the printed wire assembly components, and preventing application of downward force to the potentiometer button. The insulation disc has a bottom surface that is dimensioned to be larger than the potentiometer button. The adjustment button includes one or more stops that trigger a fail safe operation mode where the tripping levels are automatically adjusted to higher or predetermined protective levels when the adjustment button is moved to those stop positions. Switch calibration is obviated and the simplified design reduces overall cost.
Owner:SQUARE D CO
Leakage current detection and interruption circuit
InactiveUS20080108252A1Coupling device detailsEmergency protective arrangement detailsElectricityDrain current
A circuit is disclosed for disconnecting a power source upon the detection of a leakage. The circuit comprises a disconnect switch for disconnecting the power source. A primary circuit controls the disconnect switch. A secondary circuit senses a leakage current. An optical switch interconnects the primary circuit and the secondary circuit for opening the disconnect switch upon the secondary circuit sensing a leakage current. The circuit is suitable for use as a leakage current detection and interruption circuit for completely electrically disconnecting and isolating the power source and the primary circuit from the secondary circuit.
Owner:TECH RES
Electromechanical trigger and an electronical safety appliance with the same
ActiveCN1763884BReduce in quantityImprove reliabilitySwitches with electromagnetic openingElectromagnetically operated protective switchesElectrical polarityMagnetic circuit
The present invention provides an electromagnetic tripping device. The device has a cradle (1) supporting a U-shaped armature (2) whose ends form polar surfaces cooperating with a palette (3). The palette is brought on the surfaces to close a magnetic circuit formed by the armature and the palette. A trip coil (4) is mounted around a yoke frame surrounding the magnetic circuit and can thwart the force of a magnet to move the palette. A resetting top cap (7) of the palette is mounted slidingly in a support (12) included in the cradle. The palette (3) pivots with respect to the U-shaped armature. The feature of the electromagnetic tripping device is that the cradle (1) includes the said top cap (7) and support (12).
Owner:SCHNEIDER ELECTRIC IND SAS
IDCI with reset lockout and independent trip
InactiveUS20020003686A1Emergency protective arrangement detailsSwitch operated by earth fault currentsElectrical and Electronics engineering
Owner:LEVITON MFG
Circuit breaker
InactiveUS6853274B2Size is finiteLow trip forceContacts enclosures/screensSwitches with electromagnetic releaseMagnetic currentRotational axis
A circuit breaker having a manual control, an over-center contact mechanism, and a magnetic current sensing coil, wherein said an over-center contact mechanism is disposed between said external manual control and said sensing coil. For example, a collapsible toggle linkage selectively applies a force along an axis, which generally intersects the coil. The circuit breaker has a housing for a contact mechanism having a contact bar rotational axis. The magnetic sensing coil of the circuit breaker is not disposed between the contact mechanism and a side wall of the housing.
Owner:AIRPAX
Switching device and electric apparatus
ActiveUS20050275995A1Improve securitySmall operating forceSwitches with electromagnetic openingSwitch operated by excess voltageMagnetic tension forceControl circuit
A switching device is provided that includes a switching mechanism unit and a switch drive control circuit. In the switching device, an operating member is maintained in an ON position by the sucking force of a permanent magnet and a yoke, despite the pushing force of a biasing unit, when the permanent magnet is in an ON position. The yoke is magnetized in such a manner as to reduce the magnetic force of the permanent magnet, when a coil wound around the yoke is energized by the switch drive control unit. The operating member and a switching member are moved from the ON position to the OFF position by virtue of the pushing force of the biasing unit, thereby shutting a feed line.
Owner:RICOH KK
Circuit breaker
InactiveCN1490838AReduce constraintsIncreased Design FreedomSwitches with electromagnetic releaseProtective switch operating/release mechanismsEngineeringCircuit breaker
A circuit breaker includes a movable contact, a fixed contact, a switching device, a switching operation handle, and an over-current tripping device. The switching device has a switching lever connected to the handle, a toggle linkage having an upper link and a lower link for connecting to the movable contact, a tripping mechanism for activating the toggle linkage in response to over-current, and an operation spring tightly stretched between the switching lever and the toggle linkage. A locking member is provided in the switching device for interconnecting the toggle linkage and the switching lever and for restricting a movement range of the switching lever according to an operational position of the toggle linkage. When main-circuit contact points are stuck, the locking member restricts the movement of the switching lever and prevents the handle from moving to the OFF position.
Owner:FUJI ELECTRIC FA COMPONENTS & SYST CO LTD
Movable contactor assembly for current limiting type molded case circuit breaker
ActiveUS20110193660A1Reduce in quantityImprove electricity efficiencySnap-action arrangementsProtective switchesElectricityCurrent limiting
A movable contactor assembly for a current limiting type MCCB comprising: a terminal base fixedly installed on a case; a plurality of movable contactors having a cam face portion; a pair of holder plates supporting the movable contactors at both sides thereof; a plurality of first springs providing an elastic force to the movable contactors; a plurality of extending plate portions provided to face the side of one end portion of each of the movable contactors; a plurality of flexible wire plates electrically connecting the movable contactors and the terminal base and having a portion bendable toward the movable contactors or toward the extending plate portions; and a second spring providing an elastic force to the flexible wire plates so as to be tightly attached to the movable contactor.
Owner:LS IND SYETEMS CO LTD
Adjustable Rating for a Fault Interrupter and Load Break Switch
ActiveUS20090279216A1Increases voltage capacityEasy to extinguishSwitches with electromagnetic openingElectromagnetically operated protective switchesTransformerEngineering
A fault interrupter and load break switch includes a trip assembly configured to automatically open a transformer circuit electrically coupled to stationary contacts of the switch upon the occurrence of a fault condition. The fault condition causes a Curie metal element electrically coupled to at least one of the stationary contacts to release a magnetic latch. The release causes a trip rotor of the trip assembly to rotate a rotor assembly. This rotation causes ends of a movable contact of the rotor assembly to electrically disengage the stationary contacts, thereby opening the circuit. The switch also includes a handle for manually opening and closing the electrical circuit in fault and non-fault conditions. Actuation of the handle coupled to the rotor assembly via a spring-loaded rotor causes the movable contact ends to selectively engage or disengage the stationary contacts.
Owner:EATON INTELLIGENT POWER LIMITED
Electromagnet Assembly Directly Driving Latch Of An Electronic Circuit Breaker
ActiveUS20100073113A1Efficient attractionSwitches with electromagnetic openingSwitch operated by falling currentRange of motionReciprocating motion
A circuit breaker includes a trip unit and an electronic fault detection unit sharing a common trip latch for causing the circuit breaker to trip upon detection of a fault by either unit. The circuit breaker has an electromagnet for causing the circuit breaker to trip upon detection of a fault by an electronic fault detection unit. The electromagnet is oriented in the housing proximal the trip latch without any components interposed between them, and directly attracts the latch. Advantageously the electromagnet orientation does not impact operation or the range of motion of the latch or other trip unit components. Advantageously the circuit breaker of the present invention does not increase the trip latch mass, its bulk swept volume through its range of motion or require additional linkage components that potentially might increase trip cycle time. In some embodiments the electromagnet core is reciprocable.
Owner:SIEMENS IND INC
Divided adjustable armature for a circuit breaker
InactiveUS20090115556A1Reduced level of trip currentImprove electromagnetic performanceProtective switch detailsSwitches with electromagnetic openingCurrent pointCircuit breaker
A divided armature for the trip mechanism of a circuit breaker especially useful for low trip current breakers allows for two independent adjustments: first of the magnetic air gap between the yoke and the armature and second of the clearance between the trip bar and the back plate of the armature. The divided armature allows the force of a return spring of the trip mechanism to be unchanged while adjusting the magnetic air gap to set the trip current point.
Owner:SCHNEIDER ELECTRIC USA INC
Circuit breaker and opening and closing method thereof
InactiveUS7911303B2Readily canceledReduce reboundSwitches with electromagnetic openingContact mechanismsCircuit breakerClosure operation
A circuit breaker includes a vacuum valve, an electromagnet including a first coil for driving an operating shaft of the vacuum valve toward an opening direction by electromagnetic repulsion, a movable core and a permanent magnet. Further, an operating mechanism is provided which excites the first coil to close the vacuum valve, holds the vacuum valve closed by an attractive force of the permanent magnet and excites the first coil in a direction reverse to an excitation direction in closing operation to open the vacuum valve. In the circuit breaker, together with the first coil, a second coil is disposed which is excited simultaneously with an electromagnetic repulsion coil for a quick opening operation by electromagnetic repulsion is provided in the electromagnet.
Owner:HITACHI LTD
Circuit breaker including extension spring(s) between operating mechanism pivot and operating handle
A circuit breaker includes a case having an opening, separable contacts housed within the case, and an operating mechanism for opening and closing the separable contacts. The operating mechanism includes a pivot and a pair of extension springs for moving the operating mechanism to close the separable contacts. The operating mechanism also includes an operating handle for operating the operating mechanism. The operating handle includes a first handle portion extending through the opening of the case and a second portion having a pair of elongated arms within the case. The extension springs extend between the elongated arms and the pivot.
Owner:EATON INTELLIGENT POWER LIMITED
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