Abstract:
A load-break electrical connector assembly including a plug-in cable connector having a probe which includes a first electrical conductor, and a bushing assembly which includes a second conductor adapted to engage the first conductor of the cable connector. A magnetic clamp is disposed in the bushing assembly which prevents removal of the cable connector from the bushing assembly when the magnitude of current flowing through the first and second electrical conductors exceeds a predetermined magnitude.
Abstract:
A load break electrical connector assembly, including a bushing and a plug-in cable connector or termination. The bushing and plug-in cable connector include cooperative sleeve and rod members, respectively, formed of arc confining and extinguishing electrical insulating materials, with at least one of the cooperative insulating members being composed essentially of methyl methacrylate polymer, having a glass filter filler.
Abstract:
A load break bushing assembly for receiving a plug-in cable connector or termination. The bushing assembly includes an insulating body member, a conductive sleeve member, a replaceable contact disposed within the conductive sleeve member, and an arc confining and extinguishing member. In one embodiment of the invention a protective tube is disposed to span the contact and arc confining and extinguishing member, to protect the conductive sleeve member from arcing by-products and maintain the replaceable characteristic of the contact. The conductive sleeve member has a chamber sealed at one end with a terminal stud, with this chamber functioning as a gas surge expansion chamber when the plug-in cable connector is operated to make or break load current, making it unnecessary to vent the load break bushing into the enclosure of its associated apparatus.
Abstract:
Electrical connector having a longitudinal contact, an arcextinguishing rod attached thereto, and an arc-extinguishing sleeve through which the contact and the rod extend. Permanent magnets surround the sleeve and create a magnetic field between the sleeve and the arc-extinguishing rod to force around the rod, any arc contained in the field. A magnetic core member within the arc-extinguishing rod helps provide the desired magnetic field pattern.
Abstract:
An electrical connector for connecting a plurality of electrical load circuits to an electrical distribution loop via a removable element, such as a current limiting fuse. The connector includes a housing formed of an insulating resin system, including a chamber in which the removable element is disposed. First and second spaced contacts are carried by the housing which cooperate with first and second spaced electrodes carried by the removable element, to interconnect the first and second spaced contacts via the removable element. The housing defines first and second integral, tubular outward projections in which contacts are disposed which are connected to the first contact, and a plurality of additional integral, tubular outward projections in which contacts are disposed which are connected to the second contact. The first and second tubular projections are adapted to removably receive and electrically interconnect first and second electrical cables, respectively, in the electrical distribution loop, and the plurality of additional tubular projections are adapted to removably receive electrical cables connected to load circuits. Arc extinguishing members are carried by the housing and by the removable member, to make the assembly and disassembly of the connector load-make and load-break at the contact connected to the electrical distribution loop.
Abstract:
Electrical inductive apparatus, such as a transformer, having a casing containing an electrical winding immersed in a liquid dielectric, and a protective fuse assembly connected between a bushing mounted on the casing and the electrical winding. The protective fuse assembly includes a receptacle which extends into the casing and into the liquid dielectric, but it is sealed therefrom, and a removable fused portion accessible from outside the casing. The receptacle is formed of a plurality of metallic and insulating tubular members, with the ends of certain of the insulating tubular members extending into the ends of a metallic tubular member, to provide sealed, electrically shielded joints. The fused portion includes a current limiting fuse having electrodes connectable via associated contact members to stationary contacts within the receptacle. Arc extinguishing members carried by both the receptacle and fused portions cooperate to make the assembly and disassembly of the fused portion and receptacle load-make and load-break.