Abstract: An enclosure includes a body portion, a top portion having a lid component configured to rotate with respect to the body portion to provide access to an interior compartment of the enclosure, and a counterweight assembly coupled between the lid component and the body portion. The counterweight assembly is configured such that the force required to rotate the lid component from the enclosure's closed position to its full-open position is substantially constant.

Abstract: An enclosure includes a body portion, a top portion having a lid component configured to rotate with respect to the body portion to provide access to an interior compartment of the enclosure, and a counterweight assembly coupled between the lid component and the body portion. The counterweight assembly is configured such that the force required to rotate the lid component from the enclosure's closed position to its full-open position is substantially constant.

Abstract: An enclosure includes a body portion having a first slotted opening, a top portion including a rotatable lid component to provide access to an interior compartment of the enclosure. A locking assembly integral with the lid component includes an actuator component rotatably coupled to a side surface of the lid component and having a first threaded end portion and an actuator axis. The locking assembly further includes a drive cylinder having a second threaded end portion configured to receive the first threaded portion of the actuator component, wherein the drive cylinder is slideably coupled to the lid component. Rotation of the actuator component from a first position to a second position causes the drive cylinder to translate parallel to the actuator axis. The locking assembly further includes a first latch structure rigidly coupled to the drive cylinder to engage and disengage the first slotted opening.

Abstract: A circuit interrupting device is manufacturable in a number of different configurations providing current path options, conductor connectivity options and sensing options. The device may include a configurable solid insulation housing into which various operable components are installed. The device may include a core element including a sensor assembly and conductor members, from which the various configurations may be established including a plurality of different current path configurations. A plurality of circuit interrupting devices may be configured together in an assembly with corresponding disconnect assemblies. An interlock is provided to prevent operation of the disconnect assemblies unless the circuit interrupting devices are in an open state.

Abstract: A circuit interrupting device is manufacturable in a number of different configurations providing current path options, conductor connectivity options and sensing options. The device may include a configurable solid insulation housing into which various operable components are installed. The device may include a core element including a sensor assembly and conductor members, from which the various configurations may be established including a plurality of different current path configurations. A plurality of circuit interrupting devices may be configured together in an assembly with corresponding disconnect assemblies. An interlock is provided to prevent operation of the disconnect assemblies unless the circuit interrupting devices are in an open state.

Abstract: An arrangement is provided for the overall handling of removable controls for an electrical device including the installation and removal of controls from a base or other housing portion of the overall device, e.g. an overhead switch utilized in electrical power distribution/transmission. The arrangement includes facilities for selectively securing or releasing the controls with respect to cooperating housing portions of the device. An operating member is provided with provisions for cooperating with the controls for securing and releasing the control with respect to the operating member. In a preferred arrangement, the controls have separate control functions.

Abstract: A circuit interrupting device is manufacturable in a number of different configurations providing current path options, conductor connectivity options and sensing options. The device may include a configurable solid insulation housing into which various operable components are installed. The device may include a core element including a sensor assembly and conductor members, from which the various configurations may be established including a plurality of different current path configurations. A plurality of circuit interrupting devices (302) may be configured together in an assembly with corresponding disconnect assemblies (306). An interlock is provided to prevent operation of the disconnect assemblies (306) unless the circuit interrupting devices (302) are in an open state.

Abstract: A circuit or fault interrupting and disconnect device includes a tripping apparatus that ensures a vacuum interrupter of the device is opened upon initiation of a change of state of an associated disconnect blade assembly. The disconnect blade assembly may have an open state and a closed state. A drive mechanism couples to the blade assembly to move the blade assembly to its various states. The drive mechanism couples to the interrupter trip assembly to provide for opening of the contacts of the vacuum interrupter prior to the blade assembly making or breaking contact.

Abstract: A circuit interrupting device is manufacturable in a number of different configurations providing current path options, conductor connectivity options and sensing options. The device may include a configurable solid insulation housing into which various operable components are installed. The device may include a core element including a sensor assembly and conductor members, from which the various configurations may be established including a plurality of different current path configurations. A plurality of circuit interrupting devices (302) may be configured together in an assembly with corresponding disconnect assemblies (306). An interlock is provided to prevent operation of the disconnect assemblies (306) unless the circuit interrupting devices (302) are in an open state.

Abstract: An operation indicator is provided to indicate the open/closed status of device, e.g. a circuit interrupter operable between open and closed operating positions. The operation indicator includes two indicator members having cooperating interleaved or interlaced construction such that a relative small operating stroke of the operable device results in relatively larger open and closed symbol and indicating surfaces.

Abstract: A multi-pole protective device and system for electrical power transmission and distribution systems is provided that operates a multi-pole tripping system at ground level from a line-potential tripping device contained within each pole of the multi-pole system. The system includes multiple pole-unit assemblies each of which is totally self-contained and generates a tripping signal in response to overcurrent conditions to operate a ground-potential operating mechanism. In one arrangement, the pole units each include an internal line-potential tripping arrangement that communicates a trip signal to a ground-potential operating mechanism of the pole unit and associated pole units of the protective device arrangement. In a preferred arrangement, the line-potential tripping arrangement includes an insulated member that is moved to transmit the trip signal from line potential to ground potential.

Abstract: A multi-pole protective device and system for electrical power transmission and distribution systems is provided that operates a multi-pole tripping system at ground level from a line-potential tripping device contained within each pole of the multi-pole system. The system includes multiple pole-unit assemblies each of which is responsive to sensed overcurrents to provide a tripping signal. Each of the pole-unit assemblies is totally self-contained and generates a tripping signal in response to overcurrent conditions to operate a ground-potential operating mechanism. In one arrangement, the pole units each include an internal line-potential tripping arrangement that communicates a trip signal to a ground-potential operating mechanism of the pole unit and associated pole units of the protective device arrangement. Each pole unit also includes an interrupter operated by the ground-potential operating mechanism to open the interrupter.

Abstract: An article mounting and handling arrangement is provided for use with an enclosure to allow access to and replacement of the articles in a position removed from the operating environment. The arrangement is especially adapted for fuses and other electrical devices. Accordingly, the arrangement for use with fuses provides access to the fuses in a position disconnected from an associated circuit and to provide connection of the fuses to the associated circuit in an inaccessible position. The fuse mounting and handling arrangement is mounted with respect to the enclosure for translation along a predetermined direction between a first, accessible position outside the enclosure and a second position with the fuses being within the enclosure. The fuse mounting and handling arrangement is also pivotally mounted with respect to an axis parallel to the direction of translation.

Abstract: A mounting for an article, such as a high-voltage fuse. The article may be located inaccessibly behind a wall or accessibly in front of the wall. The wall may form a part of an enclosure and contains an opening. The article is affixed to one surface of a panel. The panel is attached to the wall so that it may be simultaneously moved and translated (or pivoted) end-for-end (or side-for-side) relative to the opening to selectively move the article between its two locations. The panel covers or blocks the opening in both locations of the article. The panel may be attached to the wall by rollers mounted at or near one end of the panel and by links pivotally connected between the wall and the panel. The rollers are guided to move generally along or coplanarly with the opening by channels on the wall adjacent to the opening. In this way, substantially all of the movement and translation of the panel may occur in front of the wall.

Abstract: A door interlock for electrical apparatus, which may include a switch, within an enclosure, permits the door of the enclosure to be opened only if the electrical apparatus is in a predetermined condition, such as switch-closed. Once the switch has been opened, the door may be opened. The interlock prevents the switch from being reclosed as long as the door is open. A latch holds the door closed if the switch is closed, if the door is locked closed by a door lock, or if both conditions obtain. If the switch is opened while the door is locked closed by the door lock, the latch continues to latch the door closed. If the door lock is unlocked while the switch remains closed, the door latch likewise latches the door closed.