摘要:
Removable bridge safety electric contact wherein each contact element is supported by its respective contact spring comprising a leaf of resilient spring material, in which a first end (7a) and an end opposite thereto (7b) are separated by an intermediate portion (I), that is folded to assume a wavy profile of boustrophedon type, defined by substantially straight sections (7c) alternating with and connected by curved sections (7d), to allow the first end (7a) to elastically and reversibly move towards the second end (7b) as said substantially straight sections (7c) become more compacted.
摘要:
The breaker apparatus is disclosed which comprises a projecting wall standing upright from the base of a breaker body; a pair of plate-shaped fixed electrodes laid on the front and back surfaces of the projecting wall; a recessed plug to be fitted on the projecting wall; a U-shaped movable electrode to be stored in the plug for bringing the both fixed electrodes into conduction by clamping the projecting wall on the front and back surfaces thereof; a fuse storage section for storing a fuse connected to one of the fixed electrodes in the surrounding wall standing upright from the base in parallel with the projecting wall; a cover for covering the opening of the fuse storage section and being fittable to the surrounding wall; an engaging surface formed on the plug and facing in the fitting direction of the plug; and a cover motion stopper provided on the cover for engaging with the engaging surface of the plug with the plug fitted to the projecting wall.
摘要:
In the breaker device, a pair of stationary electrodes 20, 21 are arranged on the front and the rear side of the protruding wall 18, that is, the pair of stationary electrodes 20, 21 are collected at one place. Therefore, the pair of stationary electrodes 20, 21 have a space round both the stationary electrodes in common. Accordingly, the size of the breaker device can be reduced. Further, when the radius of curvature of the continuity section 73 connecting the pinching pieces 71, 72 is made large, concentration of stress in the movable electrode 70 can be relieved. Therefore, the pinching forces of both the pinching pieces 71, 72 can be increased. Accordingly, it is possible to ensure a sufficiently high contact pressure between the movable electrode 70 and the stationary electrodes 20, 21.
摘要:
To prevent an insufficient engagement of electrodes. A breaker device according to the invention is excellent in safety because of its construction in which a conductive path is located inside the casing 1 and is allowed to have a compact configuration of particularly low height because a handle 40 can be inclined to its resting position. When the handle 40 is inclined to the resting position while a movable electrode 31 is insufficiently engaged, engaging portions 77 come into contact with receiving portions 75 and a lever action works with the contact positions of the engaging portions 77 and the receiving portions 75 as a fulcrum. As a result, a rotating force applied to an operable portion 40A is translated into a downward acting engaging force applied to the movable electrode 31 via rotation center shafts 45 and a mount body 35. In other words, since the movable electrode 31 is brought into its properly engaged state by inclining the handle 40 to the resting position, the insufficient engagement of the movable electrode 31 can be prevented.
摘要:
A compact high-voltage, high-amperage quick disconnection device for alternately connecting and disconnecting an electrical power supply from a load. The disconnection device includes two spaced-apart terminals (2,4) having axially-aligned openings (6,10) and embedded in a non-conductive housing (34). A conductive pin (38) engages the openings (6,10) to electrically couple the terminals (2,4). The pin (38) has a handle (50) on one end thereof for locking or moving the pin (38) as needed. An elastomeric seal (64) between the handle (50) and the housing (34) protects the quick disconnection device from contamination.
摘要:
A loadbreak (100) connector system and methods for visible break include first (102) and second (104) mating connector assemblies configured to make or break an electrical connection under energized circuit conditions and a stored energy actuating element (166) configured to move one of the first and second mating connectors to a disconnected position relative to the other of the first and second mating connectors. One of the first and second mating connectors includes an arc follower (120), and the other of the first and second mating connectors includes an arc interrupter (142). The arc interrupter is configured to receive the arc follower, and the first and second mating connectors are positionable in a disconnected position wherein the arc follower remains engaged to and is located within the arc interrupter. Arc energy is distributed among multiple locations to reduce arc intensity.
摘要:
In a circuit breaker, fixed electrodes 14 in pair are secured in a male housing 13. A female housing 21 which contains a moving electrode 30 is fitted into the male housing 13, whereupon the moving electrode 30 contacts and straddles the fixed electrodes 14 to make a short circuit. The moving electrode 30 comprises in integral combination retainer pieces 32 that are retained in an electrode retainer tube 22 in the female housing 21, a contact lug 31 that either contacts or detaches from the fixed electrodes 14, and a narrow-width joint 33 that joints the retainer pieces 32 and the contact lug 31 to make an integral unit. The narrow-width joint 33 flexes to deform, thereby absorbing the positional offset that develops when the contact lug 31 comes into engagement with the fixed electrodes 14.