Abstract: The present invention relates to a high-voltage submersible motor and a waterproof connector for use in the submersible motor. The submersible motor includes a motor body (36), a power cable (37a), a cable contact (50) electrically connected to the power cable (37a), a cable-side insulating member (49) to which the cable contact (50) is liquid-tightly coupled, a motor contact (42) connected to the cable contact (50), a motor-side insulating member (41) to which the motor contact (42) is liquid-tightly coupled, and an insulating resin (93) that fills an enclosed space (60) formed between the cable-side insulating member (49) and the motor-side insulating member (41). A connecting portion of the cable contact (50) and the motor contact (42) is covered with the resin (93).

Abstract: A direct current cable termination apparatus for terminating a high voltage direct current cable, the apparatus includes a current-carrying device comprising a terminal portion of the direct current cable, the cable includes an electrical conductor, a circumferential electrically insulating layer located outside of the electrical conductor, and a circumferential conductive shield located outside of the insulating layer and the electrical conductor. The apparatus includes a housing having an outer shell, and the current-carrying device is adapted to extend in the axial direction of the outer shell. Along at least a part of the axial extension of the current-carrying device the outer shell extends axially with a space between its inner periphery and the current-carrying device.

Abstract: The invention relates to a connecting arrangement for connecting supply lines across a gap between railway vehicles, comprising at least one flexible electrical power line and at least one flexible fluid line. To provide an improved connecting arrangement for electrically and pneumatically connecting railway vehicles or pantographs of a train, which is easy to handle and provides an increased reliability, the at least one power line and the at least one fluid line are preassembled to form an integral unitary structure.

Abstract: A tap changer is filled with an insulating liquid as well as devices for absorbing variations in the volume of the insulating liquid due to thermal conditions. A gas cushion is provided which is integrated into the tap changer vessel and is formed by members that absorb the variations in the volume of the insulating liquid by changing the shape thereof. Furthermore, a gas cushion envelope is provided which prevents the gas of the gas cushion to be mixed with the gases generated by the thermal decomposition of the insulating liquid.

Abstract: An electrical line is to be insulated from fluid or corrosive media penetrating along the electrical line in an advantageous and cost-effective manner from the standpoint of production engineering. The electrical line having an electrically conductive inner conductor and an insulating jacket surrounding it includes a sealing element, which is disposed on the insulating jacket in a spring-back manner via a first subsection, and which covers the inner conductor across a partial length via a second subsection. The sealing element contains a soluble, in particular fluid sealant, which is pressed into the individual conductors of the inner conductor implemented as stranded wire, and cures in a sealing manner. The electrical line is used, for example, in the automotive industry for a cable harness plug.

Abstract: A high voltage bushing including a metal part provided with a resistive layer.

Abstract: Provided is a superconducting cable provided with an enhanced cooling ability, the superconducting cable including a core including a superconducting wire rod; an inner sheath surrounding the core; an outer sheath surrounding the inner sheath; a plurality of communication pipes that have both ends communicating with the inner and outer sheaths, and are mounted in the longitudinal direction of the inner and outer sheaths; a plurality of valves that are mounted in the communication pipes; and a plurality of auxiliary cooling systems that are mounted on some of the communication pipes. Cooling fluid supplied from the cooling systems is supplied into the inner sheath through the communication pipes, and is then discharged to the outside through the valves.

Abstract: Electrical lead-through systems from atmospheric into vacuum environments are presented. Electrical feed-through structures (EFTS) comprised of a multiplicity of parallel connection lines used to operate e-beam tip-array sources in high vac environments for chip lithography are disclosed. In one embodiment, an EFTS comprises a sheet of insulating material having conductive tracks extending along potions of the sheet and a vacuum seal separating one portion from another portion of the sheet so as to maintain a pressure differential among multiple portions of the sheet.

Abstract: A cable assembly interconnects an electrosurgical instrument and source equipment for power and fluid transfer. The cable assembly includes a unitary tubular assembly forming a lumen(s) and an insulating sheath(s) for an electrically conducting cord that are integrally interconnected via a web arrangement in a continuum of material. The web arrangement has a thickness sufficient to allow the lumen(s) and sheath(s) to be pulled apart upon application of a pulling force in a direction transverse to the direction of elongation of the tubular assembly.

Abstract: The present invention relates to an electrical cable system and a method for manufacturing an electrical cable system (1) comprising an electrical cable (10) containing a conductor core (2) and for installing said electrical cable system over a longitudinally expandable-contractible element (1′, 6) characterized in that it comprises the successive steps of:

Abstract: Electrical lead-through systems from atmospheric into vacuum environments are presented. Electrical feed-through structures (EFTS) comprised of a multiplicity of parallel connection lines used to operate e-beam tip-array sources in high vac environments for chip lithography are disclosed. In one embodiment, an EFTS comprises a sheet of insulating material having conductive tracks extending along potions of the sheet and a vacuum seal separating one portion from another portion of the sheet so as to maintain a pressure differential among multiple portions of the sheet.

Abstract: A system that finds breaches in solid insulation, as well as detecting insufficient air gaps between conductors. The invention solves problems in how to detect breaks in solid insulation by applying high voltages without damaging the solid insulation. The invention also overcomes limitations where the voltages required to detect an insufficient air-gap can cause damage to, or are difficult to apply to the electrical device under test. The system for testing conductors held physically separated or otherwise isolated from each other by an insulating material is composed of a high-voltage breakdown tester, a means of connecting the tester to the conductors, and an added gas that is used to displace air in the proximity of the conductors.

Abstract: The present invention relates to an apparatus and method for increasing the power rating of an offshore high voltage power cable (1) which includes passage of the cable from the sea to a platform installation (2) through a bending strain reliever (BSR) (4). An inlet for introducing cooling fluid to an interface space (5) between the BSR and the cable is provided through a sleeve, (6) closing the space at the end (7) of the BSR and that an outlet for the fluid is provided at the upper end (12) of the BSR through a special flange (13).

Abstract: Device for attachment to the overflow line of an electrolytic cell, for collection of alkaline cell liquor and for concurrent interruption of electrical current flow from cell in such liquor. The device consists of a closed container having a liquor inlet in the top portion of the container and outlet in the bottom portion, with the container being divided internally by a horizontal perforated plate, for separating the incoming liquor flow stream into a multiplicity of streamlets or droplets. The device is fabricated from a non-metallic, transparent material that is resistant to the hot alkaline cell liquor, preferably polymethylpentene plastic.

Abstract: A pair of pumps driven by a common motor draw in ambient seawater through e and expel it through the other to following electronic instrumentation. Coupled between the pumps, a rapidly rotating disk receives the flow of seawater and radially dissipates it in a multitude of separated droplets. The droplets are collected in a reservoir and the second pump expels it to the instrumentation. Where the flowing seawater is separated into droplets by the rapidly spinning disk, a break is created in the electrical conductivity continuity so that the following electronic instrumentation is not influenced by possible electrical potentials in the ambient seawater.

Abstract: Method and apparatus for laying an oil filled, electric cable at great depths and under conditions whereby the weight of the oil may cause internal cable pressures which will rupture the cable. In the method, the leading cable end is fed over a guide which is higher than the point at which the weight of the oil column between the guide and the cable source is equal to the normal oil pressure in the cable and is then fed downwardly but without exceeding an amount which would cause the oil column pressure after the guide to exceed safe limits for the cable. The pressure on the oil at the cable source is then reduced producing a torricellian vacuum in the cable at or near the guide which is maintained at a value such that the weight of the oil in the vertical section of the cable does not exceed safe limits. The apparatus includes the guide and pressure regulating and indicating devices at the cable oil source and the leading end of the cable.