Abstract: The present invention relates to a gripping group for a switch, changeover switch, disconnector or generally a power switch, said power switch being mounted inside an insulated switch body and comprising at least a movable contact providing an electrical connection, said gripping group being configured to grip said at least a movable contact of said power switch, wherein a modular structure comprising a plurality of caliper-like elements being parallelly mounted on a supporting frame and in turn including respective terminal finger elements being angularly movable one with respect to the other, mutually approaching and moving away in contrast with elastic returning means.

Abstract: An ATS bypass switch includes a draw-out ATS switch; a bypass switch; and a processor structured to automatically control both of the draw-out ATS switch and the bypass switch.

Abstract: A power distribution assembly includes a first conductor having a first conductor end and a first shape in cross-section and a second conductor having a second conductor end and a second shape in cross-section. A splice couples the first conductor end to the second conductor end. An insulative boot has a first opening of the first shape, wherein the insulative boot encompasses the first conductor end. The insulative boot also has a second opening having the second shape, wherein the second opening encompasses the second conductor end. The insulative boot has a cavity between the first end and the second end, wherein the cavity is configured to encompass the splice.

Abstract: An auxiliary compartment for housing at least one electrical device is associated with an auxiliary cubicle of a switchgear enclosure. The auxiliary compartment is removably mounted in the corresponding auxiliary cubicle for quick disconnection of the electrical device from an associated circuit breaker in an adjacent circuit breaker cubicle. The auxiliary compartment includes a first connection connected to the electrical device. The auxiliary cubicle includes a second connector attached to the auxiliary compartment rear wall that is removably engageable with the first connector. The second connector is connected with the circuit breaker in the adjacent circuit breaker cubicle. The electrical device in the auxiliary compartment can be quickly disconnected from the power and communication connections with the circuit breaker in the adjacent circuit breaker cubicle by withdrawing the auxiliary compartment from the auxiliary cubicle to disconnect the first and second connectors.

Abstract: An interlocking system for a circuit breaker assembly including a circuit breaker having a plurality of contacts includes a racking screw coupled to the contacts that changes a position of the circuit breaker when engaged by a tool. The interlocking system also includes a front panel defining an opening through which the racking screw is accessible, an access door coupled to the front panel and configured to selectively cover the opening, and an access door stopper coupled to the front panel. The interlocking system also includes a trip assembly coupled to the access door stopper. Each of the access door, the access door stopper, and the trip assembly are moveable between a first position and a second position such that moving to the first position triggers delivery of a trip signal to the circuit breakers to open the plurality of contacts, and wherein, in the second position, the access door is fully open to enable access to the racking screw through the front panel.

Abstract: The present invention employs a separate rotation-adjusting member, which allows a position of a circuit breaker or a transformer to be recognized from outside without an error.

Abstract: A switchgear/board cabinet is constructed using a dual compartment module (100) that includes an equipment compartment (200) and a bus compartment (300) arranged behind the equipment compartment. The bus compartment includes line connection buses (310) and load connection buses (320) for a plurality of phases, spaced-apart vertical interphase barriers (330), a horizontal support barrier (340) and a rear barrier (350) forming a back wall. Each of the vertical interphase barriers extends from a front to a back of the bus compartment, and isolates the load connection bus and line connection bus of each phase from the load connection bus and line connection bus of the other of the phases. The horizontal support barrier extends from the front to the back of the bus compartment, and supports the line connection buses. Any number of dual compartment modules may be constructed and stacked to provide a customized switchgear/board cabinet.

Abstract: A transformer position adjustment preventing device includes a case having a handle insertion unit formed therein, a position displaying unit disposed in the case and displaying a test position or an operation position of a transformer truck with a transformer seated thereon, a rotating member disposed in the case, connected to the position displaying unit, rotated by the rotation of the position displaying unit to open or close the handle insertion unit, and a restricting member rotated in a direction of the rotating member or an opposite direction of the rotating member according to opening or closing of a door opening and closing the transformer chamber in which the transformer truck is disposed, so as to restrict the rotation of the rotating member or release the restriction state.

Abstract: Motor control centers have units or buckets with one or more sliding shutters that controllably block access to a stab isolation port based on position of the operator disconnect handle using attached cams that slide the shutter right and left. A front panel of the unit or bucket may also be configured to pivot out about a long axis associated with a bottom long side thereof.

Abstract: A motor control center system is provided. The system includes an electrical enclosure having buses for routing electrical power to component units. The system also includes a component unit disposed in a compartment of the electrical enclosure. The component unit contains a component for managing a power supply to a load disposed outside of the enclosure. In addition, the system includes a ground element disposed along a support wall of the compartment, wherein the ground element provides a fused ground connection with a load terminal of the electrical enclosure when the component unit is withdrawn from the electrical enclosure.

Abstract: Disclosed herein is a safety device mounted in a battery pack including one or more battery modules, each of which includes a plurality of unit modules electrically connected to each other, to interrupt a flow of electric current in the battery pack in an abnormal state of the battery pack, the safety device including a safety device case provided with a connection terminal connected to a main cable of the battery pack and a circuit breaker unit mounted into the safety device case from an outside of the battery pack in an insertion fashion such that the circuit breaker unit is electrically connected to the connection terminal in a state in which the circuit breaker unit is mounted in the safety device case and the circuit breaker unit is electrically disconnected from the connection terminal in a state in which the circuit breaker unit is separated from the safety device case.

Abstract: A non-load break isolating switch for a voltage controller or other electrical component controller may include a mangle pinion gear shaft and a slider having a gear rack that meshes with the mangle pinion gear shaft. Movement of an ON/OFF switch handle of the controller may cause the mangle pinion gear shaft to rotate. Rotation of the mangle pinion gear shaft may cause the slider to linearly translate along a fixed path, where a conductive connector on the slider may engage or disengage a finger assembly to make or break a connection with a voltage bus. Voltage controllers and methods of assembling a non-load break isolating switch are also provided, as are other aspects.

Abstract: A subunit is provided for a motor control center including an enclosure, a number of compartments, a plurality of power lines, and a number of covers for covering the compartments. The subunit includes a housing removably disposed within a corresponding one of the compartments, a plurality of electrical contacts movably coupled to the housing, and an actuating assembly for moving the electrical contacts into and out of electrical contact with the power lines. The subunit further includes at least one of a locking assembly, a panel assembly, and a secondary disconnect assembly. The locking assembly locks the position of the electrical contacts and restricts access to the actuating assembly. The panel assembly is pivotable and translatable with respect to the subunit housing. The secondary disconnect assembly is independent from the actuating assembly in order that movement of the electrical contacts does not move the secondary disconnect assembly.

Abstract: A subunit is provided for a motor control center including an enclosure, a number of compartments, a plurality of power lines, and a number of covers for covering the compartments. The subunit includes a housing removably disposed within a corresponding one of the compartments, a plurality of electrical contacts movably coupled to the housing, and an actuating assembly for moving the electrical contacts into and out of electrical contact with the power lines. The subunit further includes at least one of a locking assembly, a panel assembly, and a secondary disconnect assembly. The locking assembly locks the position of the electrical contacts and restricts access to the actuating assembly. The panel assembly is pivotable and translatable with respect to the subunit housing. The secondary disconnect assembly is independent from the actuating assembly in order that movement of the electrical contacts does not move the secondary disconnect assembly.

Abstract: A draw-out mechanism for a molded case circuit breaker includes a fixed side plate and a plurality of auxiliary contacts mounted to the fixed side plate. The draw-out mechanism also includes a movable member moveably mounted to the fixed side plate. The movable member includes a cam member that acts upon the plurality of auxiliary contacts. The draw-out unit further includes a front panel member having a visual indicator mechanism and a locking mechanism provided with a padlock locking arm, a door lock and a second lever. In addition, the draw-out unit includes a connector plate that operatively couples the movable member and the front panel member. The connector plate includes a plurality of adjustment portions that establish a desired extension of the connector plate relative to the movable member to accommodate a predetermined spacing between the movable member and the front panel member.

Abstract: Earthing equipment for a switchgear is comprised of a movable carrying cart, a switch portion, a manipulating portion, and a voltage detecting device. The earthing equipment is provided with: an upper conductor connected to any one of the movable electrode and the stationary electrode; a lower conductor connected to the other of the movable electrode and the stationary electrode, an earthing wire connecting the lower conductor to a terminal used for earthing of the switchgear; and an adaptor conductor being selectively connected to either a disconnection portion at a bus bar side or a disconnection portion at a cable side of the switchgear and is permitted to be selectively replaced on either upper or lower face of the upper conductor.

Abstract: An interlock assembly for a bypass isolation open or closed transition ATS assembly is disclosed. The interlock assembly ensures that a switch assembly being worked upon and/or being inserted is in a neutral configuration, i.e. the switch assembly is not engaging a power source. The interlock assembly is, preferably, an electrical interlock having a control system structured to configure the switch assemblies and to monitor the configuration of the switch assemblies. That is, the switch assemblies each include a power operated, conductive, movable contact arm. The position of each contact arm is controlled, and monitored by, the control system which controls the single actuator for each contact arm.

Abstract: A subunit is provided for a motor control center including an enclosure, a number of compartments, a plurality of power lines, and a number of covers for covering the compartments. The subunit includes a housing removably disposed within a corresponding one of the compartments, a plurality of electrical contacts movably coupled to the housing, and an actuating assembly for moving the electrical contacts into and out of electrical contact with the power lines. The subunit further includes at least one of a locking assembly, a panel assembly, and a secondary disconnect assembly. The locking assembly locks the position of the electrical contacts and restricts access to the actuating assembly. The panel assembly is pivotable and translatable with respect to the subunit housing. The secondary disconnect assembly is independent from the actuating assembly in order that movement of the electrical contacts does not move the secondary disconnect assembly.

Abstract: A dampening mechanism for an electrical for an electrical switching apparatus, such as a draw-out circuit breaker, includes a mounting bracket coupled to the circuit breaker, a pivot member, at least one biasing element, and a damper. The circuit breaker is movable into and out of an installed position within a switchgear enclosure. The pivot member pivots between first and second positions corresponding to the circuit breaker not being fully installed and being disposed in the installed position, respectively. The biasing element biases the pivot member toward the first position. When the circuit breaker is moved toward the installed position, the second end of the pivot member engages at least one of a back panel and a ledge of the enclosure, thereby pivoting the pivot member toward the second position. When the pivot member is disposed in the second position, the damper is biased against the ledge of the enclosure to dampen undesired vertical motion of the circuit breaker.

Abstract: An adjustable mounting assembly for a power circuit breaker includes a frame having a first sidewall disposed opposite a first side of the housing of the power circuit breaker and a second sidewall disposed opposite the second side of the housing. At least one moveable block is disposed between the first and second sidewalls of the frame and the corresponding first and second sides of the housing. An adjustment mechanism, such as a jackscrew coupled to the moveable block, adjusts in order to move the block into engagement with the corresponding sides of the housing. A fastening mechanism, such as a lock screw, secures the moveable block and the frame with respect to the housing. The adjustable mounting assembly securely mounts the frame and the power circuit breaker within a switchgear enclosure in order to resist damage potentially caused by an impact force sustained thereby.

Abstract: A securing mechanism is provided for an electrical switching apparatus, such as a circuit breaker, which is movable into and out of an installed position within a switchgear enclosure. The securing mechanism includes a mount coupled to the circuit breaker, and a movable assembly movably coupled to the mount and including an engagement member. The movable assembly moves among first and second positions corresponding to the circuit breaker not being fully installed within the switchgear enclosure and being disposed in the installed position, respectively. When the circuit breaker is moved toward the installed position, the engagement member engages the switchgear enclosure and moves the movable assembly toward the second position, in which the engagement member securely engages the switchgear enclosure to resist undesired movement of the circuit breaker with respect to the switchgear enclosure.

Abstract: A door interlock assembly is for a draw-out circuit breaker assembly. A draw-out circuit breaker is housed within an enclosure including a door and includes a poleshaft operable between first and second positions corresponding to separable contacts being opened and closed, respectively. The door interlock assembly includes a pivot member coupled to the poleshaft and a door latch interconnected to the pivot member by a linkage, such as a threaded drive rod. The door latch pivots such that a first end thereof engages and locks the door of the enclosure when the poleshaft moves to the second position. An optional mechanical sensor assembly adapted to trip the circuit breaker when the door is positioned in any position other than closed, is also disclosed.

Abstract: A method and a door arrangement for a switchgear enclosure, with the enclosure having a top and bottom panel, a back panel and two opposing side panels. The enclosure includes an interior framework supporting a draw-out circuit breaker. The door arrangement comprises a front extension coupled to the enclosure. An exterior door is pivotably mounted in an offset position to the front extension and configured to move from one of a closed position and an open position on one side of the enclosure. The breaker door is pivotably mounted to the interior framework and configured to move from one of a closed position and an open position on another side of the enclosure and move clear of the offset exterior door.

Abstract: An automatically operating interlock device prevents access to the interior of an electrical cabinet when the device within the cabinet is electrically connected with a power supply. The interlock device is particularly suited for arc resistant circuit breaker cabinets. The circuit breakers within such cabinets typically move from a rearward position within the cabinet, wherein a pair of stabs on the back of the circuit breaker are electrically connected to a corresponding pair of quick disconnects, and a forward position within the stabs are disconnected from the quick disconnects. A levering in assembly including a levering in block controlled by a threaded rod is typically used to move the circuit breaker from one position to the other. The interlock device includes a cam pivotally secured near the forwardmost position of the levering in block, and a locking bar pivotally secured to the cam. The cam is biased so that the locking bar engages the cabinet door.