Abstract: Systems and methods for superconducting magnets are disclosed, such systems and methods comprising a primary coil and short-circuited secondary coil. The secondary coil can be made from a stack of superconducting tapes having longitudinal cuts forming closed superconductor loops without splices. The primary coil is used to pump the current into the secondary coil where it circulates continuously generating a permanent magnetic field.

Abstract: A contactor includes: at least one moveable contact mounted on a contact carrier; at least one stationary contact mounted on a housing; an electromagnet arranged to cause the contact carrier to move relative to the housing between a first position and a second position, and thus to cause the at least one moveable contact to travel from a contacts open position to a contacts closed position with respect to the at least one stationary contact; a sensor coupled to one of the contact carrier and the housing and arranged to detect an intermediate position, in between the first position and the second position, at which the housing and the contact carrier are located at a given moment in time as the contact carrier moves relative to the housing between the first position and the second position; and a controller connected to receive the signals from the sensor.

Abstract: The electromagnetic relay includes a fixed terminal, a fixed contact connected to the fixed terminal, a movable contact piece moving in an opening direction and a closing direction with respect to the fixed terminal, a movable contact connected to the movable contact piece and being arranged to face the fixed contact, a coil generating an electromagnetic force to move the movable contact piece, and a drive circuit controlling a current to the coil. The drive circuit increases the current at a first increase rate in a first period that includes a period from a start time when the current starts to flow in the coil to before a contact time point at which the movable contact contacts the fixed contact. The drive circuit increases the current at a second increase rate larger than the first increase rate in the second period that includes a period after the contact time point.

Abstract: In an embodiment, a switching device includes at least one stationary contact, a movable contact, an armature, a permanent magnet and a magnetically-operated switch, wherein the movable contact is movable by the armature, wherein the permanent magnet is attached to the armature, and wherein the magnetically-operated switch is a Hall switch.

Abstract: A relay coil assembly includes a bobbin having flanges on two ends, an enameled wire wound around bobbin, a coil pin mounted to the flange and having an insertion portion, an enameled wire fixing portion and a signal wire fixing portion, and a signal wire. The signal wire fixing portion is provided with a first engagement recess with an opening facing downward, in which the signal wire is engaged. An inverted hook is provided at one of two recess sidewalls of the first engagement recess, and a slope section is provided at one of the two recess sidewalls of the first engagement recess. The opening gradually enlarges from inside to outside along the slope section, which is capable of squeezing the signal wire into the first engagement recess and the inverted hook is capable of preventing the signal wire from coming out.

Abstract: An electromechanical actuator includes: an actuator rod housed in an actuator housing; a linear variable differential transformer “LVDT” fixed to the actuator housing; and an anti-rotation component configured to contact the outer surface of said LVDT. The outer surface of the linear variable differential transformer comprises a first anti-rotation surface feature and the anti-rotation component comprises a second anti-rotation surface feature. The first and second anti-rotation features are sized and shaped relative to each other such that, when in contact with each other, they are configured to prevent rotation of the actuator rod in use.

Abstract: An enhanced safety coil that prevents crack formation and propagation to the coil windings from external sources and prevents exposure to fuel is provided. The enhanced safety coil may be used in a solenoid operated gas admission valve (SOGAV), and includes a plastic encapsulation body having at least one body de-stress feature, a coil wound on the plastic encapsulation body, a sleeve forming an outermost side protective wall configured to accommodate the plastic encapsulation body and coil therewithin, and potting provided between the plastic encapsulation body and the sleeve to seal the coil therein. The body de-stress feature is configured to reduce at least one of a formation or a propagation of a crack through the potting to the coil. The plastic encapsulation body forms retention latches configured to mate with a stator.

Abstract: An electromagnetic relay includes a first fixed terminal including a first fixed contact, a second fixed terminal including a second fixed contact, a movable contact piece including first and second contacts, a drive device including a coil, a case, and a magnet. The case includes an accommodation space accommodating the first fixed contact, the second fixed contact, and the movable contact piece, and a first arc extension space at least partially disposed between the coil and the magnet. The magnet is disposed so as to overlap with the coil in a third direction orthogonal to the moving direction and a longitudinal direction of the movable contact piece. The magnet configured to extend a first arc generated between the first fixed contact and the first movable contact and a second arc generated between the second fixed contact and the second movable contact in the longitudinal direction of the movable contact piece.

Abstract: An actuator, which is a part of a combination that includes a pair of circuit interrupters, advantageously employs a plurality of Thomson coils that are electrically connected in parallel and that interact with a corresponding set of Thomson plates of a rotatable armature in order to perform useful work in a rapid fashion. In one embodiment, the useful work is to commutate current from one circuit interrupter to the other.

Abstract: A bi-stable solenoid includes a housing, a wire coil, a permanent magnet, an armature, a pin, and a spring. The wire coil is arranged within the housing. The armature is slidably arranged within the housing and is moveable between a first armature position and a second armature position. The pin at least partially extends out of the housing and is slidably engaged by the armature. The spring is biased between the armature and the pin. When the pin encounters an intermediate position between a retracted position and an extended position due to the pin engaging an obstruction, the spring is configured to maintain a biasing force on the pin until the obstruction is removed.

Abstract: A superconductor (10, 30) has a twisted structure and is adapted to form windings in a superconducting coil. The superconductor (10, 30) comprises at least one superconductor wire. The superconductor further comprises at least one elongated electrical insulation element (18, 37). The elongated electrical insulation element(s) (18, 37) is/are twisted with or around the superconductor wire(s) in order to create a separation distance with an adjacent superconductor wire in a neighbouring winding, The elongated electrical insulation element(s) (18, 37) and the superconductor wire(s) may be twisted in one and the same twisting operation.

Abstract: A circuit breaker and a power distribution system are provided. The circuit breaker includes a housing and an internal element disposed inside the housing. The housing includes a front panel and a rear panel that are disposed opposite to each other, the front panel is disposed with a button, a status display unit, and a power wiring port, and the rear panel is disposed with a power interface and a signal interface. The power wiring port and the power interface are connected to a circuit of a power distribution system. The signal interface is internally and electrically connected to the button, the status display unit, and the internal element, and the signal interface is externally configured to be electrically connected to a control unit disposed outside the housing. A control signal of the control unit implements working of the button, the status display unit, and the internal element.

Abstract: There is provided an electromagnetic solenoid including: a stator including a stator core; a coil configured to generate an electromagnetic attractive force by energizing the stator core; a mover configured to be attracted toward the stator by the electromagnetic attractive force; and a magnetic elastic admixture including a resin material with soft magnetism and elasticity, wherein the mover is configured to be capable of reciprocating by being released by an elastic body that generates a biasing force in a direction opposite to a direction in which the electromagnetic attractive force acts, a proximal end of the mover is located at a first proximal end position upon the mover being electromagnetically attracted toward the stator during energization of the coil, and is located at a second proximal end position upon the mover being electromagnetically released and moved to a side opposite to the stator during de-energization of the coil, and the magnetic elastic admixture is configured to elastically deform b

Abstract: An electromagnetic actuator. The electromagnetic armature includes: an armature movable in an axial direction in an armature space; a magnetic coil for generating a magnetic field to move the armature; an operating element motion-coupled to the armature; and a flux-directing part, disposed at an axial end of the magnetic coil, having a recess which extends in the axial direction and in which the operating element is displaceably disposed, the flux-directing part being embodied in two parts. The flux-directing part is embodiment in two parts from a base part facing toward the armature and a top part facing away from the armature. The operating element is mounted, displaceably in the axial direction, in a first bearing point embodied on the top part and in a second bearing point embodied on the base part.

Abstract: A contactor includes two static contacts and a movable contact. Two ends of the movable contact selectively electrically contact the two static contacts, respectively. The contactor further includes a rotatable member rotatable about a central axis, with the movable contact being mounted thereon. The rotatable member is rotatably mounted on a support plate. Two ceramic members are mounted on the support plate, with each defining an internal region. Two permanent magnets are mounted on the support plate and located outside of the two ceramic members, respectively. The two ends of the movable contact are located in respective internal regions of the two ceramic members, such that an electrical arc generated between the movable contact and the static contact is located within the internal region.

Abstract: A multi-level feedback actuator assembly for a circuit breaker assembly includes a rotary solenoid, an electric actuator assembly and a manual actuator assembly. The electric actuator assembly includes a switch assembly with an actuator. The manual actuator assembly includes a number of primary actuators, a linkage assembly, and a cam assembly. The number of primary actuators includes a first actuator with a body. The first actuator body is structured to move over a path having at least a first portion and a second portion. The rotary solenoid is operatively coupled to the linkage assembly. The linkage assembly is further operatively coupled to an operating mechanism crossbar. In this configuration, the linkage assembly is structured to apply at least a first bias and a second bias to the first actuator body. Further, the first bias is noticeably different from said second bias.

Abstract: A switch assembly for adapting a non-contact switch into a contact triggered switch, such that the internal electrical state of the non-contact switch can be triggered by mechanical contact with an object or surface. The switch assembly can include an adapter body coupled to the non-contact switch and an actuation body coupled to the adapter body. The actuation body can be movable relative to the adapter body to selectively position a target supported by the actuation body within a sensing region of the non-contact switch. The actuation body can be moved by an external object making contact with a portion of the actuation body.

Abstract: In an embodiment a contact arrangement includes a retaining element with a cylindrical hole having a cylinder axis configured to arrange the retaining element on a shaft and a contact bridge attached to the retaining element, wherein the contact bridge has a top side with at least one contact region and a bottom side opposite the top side, and wherein, via a rotation around the cylinder axis, the contact bridge is transferable to a locked state on the retaining element in a direction along the cylinder axis.

Abstract: An electrical contactor module includes a pair of contactor assemblies each having an input contact, an output contact spaced apart from the input contact, and a linear solenoid disposed proximate the input and output contacts. Each linear solenoid has a housing, a plunger disposed within the housing so as to permit axial displacement of the plunger between an open position in which an end of the plunger is spaced apart from the input and output contacts and a closed position in which the end mechanically contacts and electrically couples the input and output contacts, a spring for biasing the plunger in the open position, and a coil within the housing for urging the plunger from the open position to the closed position along a linear direction. The contactor assemblies are fastened and arranged within an enclosure, with the linear directions for the contactor assemblies pointing in generally opposite directions.

Abstract: The present disclosure relates to a direct current relay and, more particularly, to a direct current relay including a mover assembly having improved support force with respect to a movable contactor. The direct current relay according to an embodiment of the present disclosure comprises a pair of fixed contactors and a movable contactor which is moved up and down by an actuator to come into contact with or be separated from the pair of fixed contactors, comprises a mover support disposed below the movable contactor and connected to the actuator by a shaft; a mover holder disposed above the movable contactor and fixed to the mover support; a contact pressure spring disposed between the movable contactor and the mover support to provide a contact pressure to the movable contactor; and a supporting pin installed to extend through the movable contactor and the mover holder.