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8669473 Dry mica tape and insulation coils manufactured therewith  
A dry mica tape includes a base material, a binder resin layer A formed on the base material and including an epoxy resin and an accelerator, a mica paper layer formed in contact with the binder...
8525032 Device for decreased risk of dielectric breakdown in high voltage apparatuses  
A device including a corona shield, and at least one support element for connecting the corona shield to a high voltage apparatus. The at least one support element includes a semiconducting...
7606017 Protection device: surge suppressing conductor  
A lightning protection or internal surge device designed to suppress surges on electrical transmission or distribution lines by expending some of the excess energy in the form of corona discharge...
7327213 Encapsulated fuse with corona shield  
An encapsulated fuse for power distribution systems and method for producing such fuses is provided. A fuse includes a body with opposing terminals. A corona shield is generally coaxial with the...
6960859 Roebel bar for an electrical machine and method for producing such a roebel bar  
A Roebel bar (10) for an electrical machine comprises a plurality of essentially parallel, transposed conductor elements (11, 12, 13), which, lying over and/or next to one another, form a bar with...
6927342 Insulation for electrical conductors that produces no partial discharges  
Electrical conductors, such as bare or round wires, are insulated by taping with a micaceous insulating tape, having a film support of a polymer which can be heat-shrunk above 150° C. and a layer...
6811875 Partial discharging-resistant wire enamel composition and partial discharging-resistant magnet wire  
The prevent invention provides a partial discharge-resistant wire enamel composition wherein at least one fine particle sol selected from the group of metal oxide fine particle sol and silicon...
6455782 Apparatus for preventing coronal discharge  
An improved apparatus for deconcentrating an electric field, surrounding a high voltage insulator. A clamp assembly centrally formed within a coronal ring permitting positive placement of the...
6438250 Method for making a conductor, or electric circuit balanced in radioelectric interference such as micro-discharge and corresponding conductor or circuit  
The invention relates to a manufacturing process of an electrical conductor or circuit compensated for radio interferences, including those from the electrical circuit itself. An application of a...
6420812 High voltage generator stator coils and methods of forming same  
The present invention provides a high voltage generator stator coil for power generation systems for preventing partial discharge. The high voltage generator stator coil preferably includes a...
6242825 Electric rotating machine with reduced thickness and volume of insulation  
An the electric rotating machine which is compact and of reduced cost by improving the thermal conductivity of the main insulation in the thickness direction while maintaining the insulation...
6242693 Overhead cable  
An overhead power transmission line formed by stranding at least one outwardly projecting strand at the outermost layer of an overhead power transmission line formed by a plurality of strands. At...
6194665 Film distinguished in coriona resistant characteristic and insulated wires, coils and motors comprising the film as an insulation material  
A plastic film distinguished in corona resistant characteristic having a low cost without a low mechanical strength, which plastic film is particularly suitable for making insulated wires, coils,...
6140588 Arrangement at a conductor on high voltage potential  
An arrangement with a conductor (15) intended to be on a high potential and a part (12) connected to ground and separated therefrom by at least a voltage receiving air gap (16, 17), comprising an...
6130495 Supporting element for an electric winding, turbogenerator and method of producing a corona shield  
A supporting element or core stack for an electric winding, in particular for a stator of a turbogenerator, includes a supporting surface to which an electric conductor can be attached. The...
6075303 High-voltage insulated stator winding  
In a high-voltage insulated stator winding having at least one stator winding bar (10) for an electrical machine, which stator winding bar (10) is surrounded by winding insulation (13) which...
5989702 Sandwich insulation for increased corona resistance  
A sandwich type insulation for electrical machinery comprising a laminate of a polymeric material such as polyimide which contains particles of an inorganic corona resistant material, said...
5969456 Electromagnetic equipment  
An electromagnetic equipment such as dynamoelectric machine includes an electromagnetic coil formed by winding an insulated wire. The insulated wire is made of a bare conductor having, on its...
5928567 Overvoltage protection material  
A solvent-free liquid conductive material designed to protect electrical components, such as printed circuit boards from high pulse static electricity. The solvent-free liquid conductive material...
5925944 Tapered electrode and voltage grading method for high voltage stator coils  
A tapered electrode with a rounded tab portion and a grading electrode is disclosed for minimizing the concentration of current flow to localized areas of the electrode. The tapered electrode...
5902633 Process for the reduction of breakdown risks of the insulant of high voltage cables and lines during their aging  
Process for the reduction of breakdown risks with respect to the solid dielectric insulant of transmission cables and lines operating under high voltages. The insulant normally separates the...
5808238 Multiple-cable power for transmission line system  
A multiple-cable power transmission line system is provided which includes a plurality of overhead transmission lines each having a ridge on the outer periphery thereof. When the outer...
5760516 Conductor bar for a stator winding of an electric machine  
The stator winding of an electrical machine comprises conductor elements which are spaced apart from one another, are electrically insulated from one another and are surrounded over their entire...
5675127 Anticorrosive coat structure of lead  
An anticorrosive structure for leads of packaged circuit modules wherein each of the leads covered with an anticorrosive coat has a tapered end so that one edge of the tapered end projects beyond...
5468916 Means for fixing winding overhangs in electrical machines  
To fix the conductors and coils of wind overhangs and to fill cavities in the winding overhangs of electrical machines, strings are used which include compressible rovings (1) made up of fibers...
5023399 Support assembly including a stress limiter for non-metallic cable, and method of fitting the stress limiter  
A support assembly for non-metallic cable incorporating a metallic support fitting and a preformed metallic stress limiter, the latter including a generally mushroom-shaped hollow body having a...
4966635 Method of making a compound cable  
The invention relates to a compound cable, such as an aluminum cable, an aluminum alloy cable, aluminum cable steel reinforced or an aluminum alloy cable steel reinforced with reduced audible...
4836504 Rail-type fence using electricity  
Disclosed is a rail-type fence using electricity which includes a plurality of support posts between which are extended continuous electrical wires. The electrical wire is enclosed within and...
4759805 Aluminum conductor of low audible noise transmission  
The surface of an aluminum conductor is roughened, for example, by blasting. A hydrophilic film such as a boehmite film, an anodic oxide film and a chemical conversion film is formed on the...
4760296 Corona-resistant insulation, electrical conductors covered therewith and dynamoelectric machines and transformers incorporating components of such insulated conductors  
Resinous compositions used as electric insulation have unique corona-resistance increased from 10- to 100-fold or more by the addition of organoaluminate, organosilicate or fine alumina or silica...
4726991 Electrical overstress protection material and process  
A material provides protection against electrical overstress transients having rise times as rapid as a few nanoseconds or less. The material comprises a matrix formed of a mixture of separate...
4605819 Conductor for high voltage electricity  
A conductor for high voltage of electricity, comprising a plurality of circular conductor wires which are wound helically to form a circular cable and a protrusion wire which is helically wound...
4506110 High voltage corona shield  
A corona tube is provided wherein the tube is flexible so that it can fit on any three dimensional container rim. The tube can be a flexible steel tube which is a standard commercial variety of...
4473765 Electrostatic grading layer for the surface of an electrical insulation exposed to high electrical stress  
A grading layer for a slot armor in an electric machine employs a layer of semi-conducting particles of silicon carbide bonded to the face of insulation of the slot armor. A layer of a tough high...
4471160 Wrapped and soldered wire termination including slotted spherical terminal and method of producing same  
An improved electrical terminal designed to eliminate arcing and corona effects has a substantially spherical post with one or more circumferential slots perpendicular to the longitudinal axis of...
4463219 Compound cable  
The invention relates to a compound cable, such as an aluminum cable, an aluminum alloy cable, aluminum cable steel reinforced or an aluminum alloy cable steel reinforced with reduced audible...
4458107 Method and apparatus for eliminating pulsatory discharges of the corona effect along an electric power line when the conductors are wet  
According to the method, a strip of nonconductive, fibrous material having a capillary effect with respect to water is fixed in close contact with each conductor of the transmission line. The...
4398125 Force field anti-noise-induction system  
An electrical ignition system for a fuel buring engine has a high voltage ignition cable (60) that includes an electrically conductive shield (64) circumjacent an electrical axial conductor (62)....
4383133 Above-ground conductor unit with corona noise reducing covering  
An overhead conductor unit used for transmitting high voltage, alternating current, electrical energy which comprises one conductor or several metallic wires grouped together and a thin plastic...
4361723 Insulated high voltage cables  
There is provided an insulated high voltage cable which possesses the property of lower dielectric losses than prior art cables. The cable comprises a conductor insulated with at least two laminar...
4296397 Fuse structure for corrosive atmosphere  
A fine ozone corrosion resistant fuse wire is supported between conductive terminals which are, in turn, supported on and spaced apart by rigid insulator spacing means so that the fuse wire is...
4291194 Negative corona shielding of line and station hardware  
A conductor support member includes an external surface having a first portion thereon. The first portion is shaped to generate a localized increase in voltage gradient. Shielding means including...
4157975 Electrical insulators having increased resistance to partial discharges  
The invention relates to electrical insulators having increased resistance to partial discharges and electrical equipment comprising such electrical insulators.These electrical insulators are...
4147890 High voltage overhead electrical transmission cable protected from wet environment corona losses  
A high voltage overhead electrical transmission cable in which an electrical conductor is eccentrically disposed in a water permeable electrically conductive jacket in electrical contact with the...
4034154 Device for reducing the radio and audible noise caused by corona on high voltage electrical installations  
A device is described for substantially reducing the radio interference and audible noise caused by the corona appearing on the surface of electrically conductive members supplied with a high...
4008409 Dynamoelectric machine core and coil assembly  
A dynamoelectric machine core and coil assembly characterized by having a separately insertable conformable side filler, such as resin impregnated fiber glass provided with a plurality of ridges...
3980804 High tension coaxial cable with end structure for preventing glow discharges  
A means for preventing glow discharge on electrodes at high tension, the electrodes being insulated from one another by interposition of a dielectric. An auxiliary electrode is provided vicinal to...
3975653 Creeping discharge and partial discharge prevention means for a coil end of a rotary electric machine  
A creeping discharge and partial discharge-prevention means for a stator coil end of a rotary electric machine is disclosed. It includes an grounding electrode on an insulator of the stator coil...
3963632 Insulating compositions  
An insulating coating composition is described which prevents deterioration of the insulating ability of newly fabricated material and when applied will also restore insulation characteristics to...
3948789 Electrical devices containing improved dielectric fluids  
Improved electrical devices such as transformers, and capacitors containing an improved dielectric fluid consisting essentially of a major amount of a liquid polyorganosiloxane and a minor amount...
Matches 1 - 50 out of 141 1 2 3 >