Abstract: A resettable cutout sectionalizer uses a modified trunnion member including a bridge and a modified cutout hinge including at least one blocking flange. One actuated, the spring-loaded sectionalizer latching pin actuates to free the sectionalizer which is rotated open by the rotation of the trunnion. The trunnion rotates open and then is blocked from further rotation in a first direction by the bridge contacting the blocking flange(s) of the cutout hinge. To reset the device, the sectionalizer body is rotated against the blocking flange which causes the latching flange of the trunnion to cam against the latching pin to overcome the spring bias and push it back into the reset position.

Abstract: A magnetoresistive layer system (5) having a layer sequence (16) comprising at least two magnetic layers (12, 12′), a non-magnetic, electrically conductive intermediate layer (13) being situated between them is described; the electrical resistance of the layer system (5) being changeable as a function of an external magnetic field acting on the layer system (5). At least one magnetically hard layer (15) is integrated in the layer system (5), at least in certain areas, applying a magnetic field at least in the area of a boundary surface between the magnetic layers (12, 12′) and the intermediate layer. The magnetoresistive layer system (5) is suitable in particular for use in a GMR sensor element having coupled multilayers or in an AMR sensor element having a barberpole structure. In addition, a gradiometer (30) having a plurality of such layer systems (5) is described.

Abstract: A sectionalizer assembly includes a mounting structure having upper and lower electrical contacts, a sectionalizer tube, an actuating member mounted to the tube and movable from a non-actuated to an actuated position, and a pivotal latching mechanism having a pivot member, latch arm and catch. The pivot member is mounted to the lower electrical contact and to a lower end of the tube for undergoing pivotal movement relative thereto between locking and releasing positions. The latch arm fixedly attached to the pivot member extends outwardly therefrom and undergoes pivotal movement therewith between the locking and releasing positions. The catch is carried on a lower end of the actuating member and undergoes movement therewith. The latch arm has an outer end fittable within a recess in the catch that is open at least at one side thereof.

Abstract: A switch is provided with the ability to diagnose its own operation and provide signals that represent the actuation of the switch and various diagnostic outputs that indicate fault conditions or potential fault conditions with regard to either the switch or related machinery. A magnetically sensitive component, such as a Hall element, is used to provide an analog output signal that is representative of the position of an actuator to which a magnet structure is rigidly attached. As the actuator moves in response to an external force, the magnet structure moves with respect to a stationary magnetically sensitive component. The analog output from the magnetically sensitive component can be used to determine the position of the switch. Based on this information, a microprocessor provides a binary output signal indicating whether the switch is actuated or deactuated.

Abstract: An electronically controlled latching circuit breaker capable of being remotely set or tripped. The electronic controls are current sensitive rather than thermally activated.

Abstract: An auxiliary switch attachment block for electromagnetic switchgear having a hammer head shaped, positive engagement coupling between the contact bridge carrier of the electromagnetic switchgear and the auxiliary switch attachment block in which the subsurfaces of the free legs of the contact bridge carrier to be coupled, which flank the hammer handle, extend at an angle away from the handle beginning at the head, so that a tilting motion of the hammer head shaped formation relative to the other contact bridge carrier is possible.

Abstract: An electronic sectionalizer for a branch line of a high voltage power distribution system has a resettable actuator for unlatching a trunnion member and release of a sectionalizer tube toward a disabled or drop-out orientation. The actuator includes an elongated, spring-loaded plunger normally held by a latch in loaded position, and a solenoid or the like is provided to shift the latch and enable movement of the plunger toward a released position for simultaneous swinging movement of the trunnion member. In certain forms of the invention, the plunger is directly engageable with a wall of the trunnion member, while in other embodiments of the invention mechanical advantage is provided by use of an elongated lever which is disposed in the path of the plunger and which bears against the trunnion member for initiating rotational movement of the latter.