Abstract: A high voltage switch system including a circuit interrupter having a first set of contacts in series with a first coil, which are in series with a second coil and a second set of contacts, the first coil wound around a first core and the second coil wound around a second coil such that upon an arc forming between the contacts of the first and second contacts, the arcs are motivated in opposite directions to be extinguished.

Abstract: An integrated contactor/service disconnect assembly according to an exemplary aspect of the present disclosure includes, among other things, a stationary contact, a movable contact selectively movable relative to the stationary contact and a service disconnect unit configured to block the movable contact from contacting the stationary contact.

Abstract: A MOC operator structure for a circuit breaker includes linkage structure coupled between the operating mechanism and an interface structure. An armature is associated with the linkage structure. Permanent magnet structure is associated with the circuit breaker and is disposed generally adjacent to the armature. Wherein, when the operating mechanism is coupled with the linkage structure and the operating mechanism moves in a first direction, a portion of the linkage structure moves in a first direction and moves the MOC operator structure to an open position, with the armature being magnetically engaged with permanent magnet structure to maintain the MOC operator structure in the open position. When the portion of the operating mechanism moves in a second direction, the portion of the linkage structure moves in a second direction and moves the MOC operator structure to a closed position, with the armature magnetically disengaging from the permanent magnet structure.

Abstract: A switching device with an ultra-fast actuating mechanism for opening electric contacts comprising a propulsion coil and a conducting disk. A stationary contact collaborates in the closed position with a movable contact, said contacts being moved to the open position by repulsion of the conducting disk. A biasing device generates a closing force to hold said electric contacts in the closed position. Latching means of the movable contact in the open position comprise a magnetic yoke having an attraction coil providing an attraction force of a magnetic movable armature. The movable contact is supported by a contact-bearing support comprising drive means designed to collaborate with the magnetic movable armature to cause movement thereof, when movement of the movable contact takes place.

Abstract: An energy-saving electromagnetic switching device in the present invention includes a housing, and an electromagnetic assembly and a movable magnetic pole within the housing. The movable magnetic pole connects a resilience means which engages with the movable magnetic pole to control the electromagnetic switching device switched on and off. At least one locking assembly is set between the movable magnetic pole and the housing, via which the electromagnetic switching device can automatically and repeatably change from an on-state to an off-state if the electromagnetic assembly is momentarily energized. The electromagnetic switching device is energy-saved, has higher automatization degree, simple operation, and lower cost.

Abstract: A circuit breaker and method include main contacts configured to connect in an on position and be separated in an off position. A handle is coupled to one of the main contacts to adjust the contacts between the on position, the off position, a trip position and an over on position. Secondary contacts are configured to provide power when connected using the handle in the over on position, even when the main contacts are separated. A stop mechanism configured to maintain separation between the main contacts to enable testing using the secondary contacts to power a test circuit such that if a test passes, the stop mechanism is released to permit resetting of the main contacts.

Abstract: The present invention was made to develop a new material possessing simultaneously the two properties of geometrically frustrated state having a magnetic controllability and good conductivity which leads to applications for electrical controllability and thermal storage. This object is achieved by the conductive material having the pyrochlore structure represented by the general formula R2Ir2O7, where R is a rare earth element or elements of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y. When, especially, R is an element or elements of La, Ce, Pr, Nd, Pm, Sm and Eu, the material possesses metallic electrical conductivity, so that it is useful for magnetically controllable functional electronic materials and thermal storage materials having large thermal capacity.

Abstract: A shock-resistant solenoid assembly includes a trip solenoid and an inertia lock, the inertia lock being operable to resist unintended engagement of a core of the trip solenoid with a trip plunger of a trip unit of a circuit breaker. The core is movable along a tripping path between a retracted position and an extended position, with the core engaging the trip plunger in the extended position. The inertia lock includes an inertia member and a latch. In response to shock loading, the inertia member interposes the latch into the tripping path to engage the core and resist the core from operatively engaging the tripping plunger under inappropriate conditions. The Abstract shall not be used for interpreting the scope of the Claims.

Abstract: The present invention relates to a switching device (14) which is arranged to switch a load (12) to a direct voltage circuit (13). The switching device (14) comprises a switching member (14a) consisting of at least three contacts (7,8,9), a control member (10) which controls the contacts (7,8,9) of the switching member (14a) and has the positions open [0] and closed [1], and one or more spring members (16a, 16b) which are tensioned by the control member (10) and control the contacts.

Abstract: An electromagnetic contactor having a removable cover in front of its contact area is provided with a molded plastic interlock member biased by a torsion spring toward a blocking position in the path of the movable contact carrier. In this position of the interlock member the latter prevents closing of the contactor. However, when the cover is secured in its closed position, engaged complementary inclined cam formations on the cover and interlock member hold the latter in a position remote from the movable contact carrier thereby permitting the contactor to be closed.