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7468091 |
Method for dehumidifying air and air dehumidifier for oil-insulated transformers, reactance coils and step switches
The invention relates to a method for dehumidifying air and to an air dehumidifier. To this end, a filter element is provided that is filled with granular material that can be regenerated by baking...
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7262362 |
High voltage device with a particle trap
The high-voltage switching device used in one installation position and has metallic encapsulation ( 10 ) a switching gap ( 4 ) and a particle trap ( 1 ) for holding foreign body particles ( 2 ),...
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6828502 |
Fluid release system for secondary conduits extending between a transformer housing and a meter box and method of use
A fluid release system for removing water within secondary conduits which contain electrical cables extending between a transformer and an electrical meter. The system includes a release valve...
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6621030 |
Gas-insulated switchgear
A gas-insulated switchgear includes a sealed vessel filled with an insulating gas, a circuit breaker held in the sealed vessel, and a branch pipe attached to a lower part of the sealed vessel right...
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6217634 |
Apparatus and method for monitoring and purifying dielectric fluids
The present invention monitors and removes contaminants from dielectric fluids by utilizing an apparatus having a chamber and tube configuration. The chamber encloses a plurality of tubes which...
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6063997 |
Gas insulated electric apparatus
In a gas insulated electric apparatus having gas sections filled with insulating gas, a locating device determines a position of a gas section in which an insulation abnormality is detected, on the...
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5798484 |
Enclosed electric conductor arrangement
A gas filled electric conductor arrangement has an inclined surface (3A) at the bottom side of an electric conductor (3) that is formed by gradually reducing the cross section (D1, D2) of the...
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5766464 |
Fluid filtration system positionable within a fluid-containing apparatus
A fluid filtration system for use with an apparatus, such as an electrical apparatus, having a casing within a working fluid, such as oil, is contained utilizes a filter-supporting flow conduit...
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5691706 |
Transformer leak alarm
Insulating oil in electric power transmission devices such as a transformer is filtered for removal of accumulated water and carbon particles. The filter and circulation pump are usually located in...
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5591937 |
High power, high frequency transmission cable breach detection
A transmission cable system that incorporates cooling channels that encircles electrical conductors with coolant. The transmission cable system also provides for breach or leak detection. More...
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5496965 |
Line for conveying electrical power
A three-phase electrical power line comprising a sealed tubular envelope of steel filled with insulating gas under pressure, e.g. nitrogen or carbon dioxide CO 2 , and having three conductive bars...
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5089665 |
Metal-clad electricity line and method of manufacturing it
For each phase, a metal-clad line comprises a phase conductor surrounded by an aluminum sheath, with each aluminum sheath being surrounded by a sheath which is gas-tight relative to the outside....
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4950837 |
Method for reclassifying PCB transformers
The present invention is directed to a method for reducing PCB concentration in an electrical induction apparatus containing a dielectric fluid with greater than 500 ppm PCB to a level of less than...
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4747960 |
Water absorbent packet
The present invention relates to a water absorbent packet and the method of using the packet in liquids to be kept free of invasive water. The packets are made of sheets of material which allow the...
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4743709 |
Gas insulated transmission line with support insulator hardware arrangements
A gas insulated transmission line has an inner conductor supported by insulators including a fixed insulator and a movable insulator with each having recesses in their outer portion having recessed...
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4730085 |
Gas insulated electrical apparatus with particle traps
A gas insulated electrical apparatus comprising a hermetic sheath filled with an electrically insulating gas having a plurality of electrically conductive sheath sections including hermetically...
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4721829 |
Gas insulated transmission line with shielded electrical joint assembly
A segmented inner conductor of a transmission line has joints between the segments with a plug on one segment fitting into a socket on an adjacent segment. An electrostatic shield covers the joint...
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4711973 |
Gas insulated transmission line with simplified insulator assembly and method of assembling same
An insulator for supporting the inner conductor of a gas insulated transmission line is configured so that its outer extremity is a simple blunt portion that fits loosely within a bearing block of...
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4672150 |
Conductor supporting apparatus for gas insulated equipment
The invention relates to a conductor supporting apparatus for gas insulated equipment in which a high voltage conductor which is arranged in a grounded tank is insulated and supported by an...
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4667061 |
Gas insulated apparatus with internal coated insulation layer of high dielectric constant
A gas insulated electrical apparatus comprises: a metal pipe in which an insulation gas is sealed; a conductor supported inside of the metal pipe by an insulation supporting member; and an...
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4659899 |
Vacuum-compatible air-cooled plasma device
A plasma generating device, and in particular a duoplasmatron ion gun, is disclosed that is air cooled, high vacuum compatible and hence very clean with a stable ion current output. The device is...
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4564721 |
Gas-insulated electrical apparatus with electret for captivating conductive particles and method of removing such particles during assembly thereof
An electret capable of holding electric charges semi-permanently is used to attract conductive particles generated or intruded in a gas-insulated electric apparatus during assembly work including...
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4556755 |
Insulating spacer design for a modular gas-insulated transmission line
A gas-insulated transmission line includes an outer sheath and an inner conductor disposed therein, which inner conductor is formed from two inner conductor sections electrically connected...
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4554399 |
Particle trap for compressed gas insulated transmission systems
A particle trap is provided for gas insulated transmission lines having a central high voltage conductor supported within an outer coaxial conductive sheath by a dielectric support member. A cavity...
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4550219 |
Modularly constructed gas-insulated transmission line, and method of assembling same
An improved gas-insulated transmission line is disclosed in which the transmission line itself is constructed in a modular fashion from elements which are joined together, typically at the final...
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4543446 |
Vaporization-cooled transformer havig provisions for replenishment of molecular sieve material
Molecular sieve material is placed in the main condensate return in vaporization-cooled transformers. The sieve material can be removed and replenished without de-energizing the transformer.
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RE31949 |
Gas insulated transmission line including provisions for minimizing particle generation
A gas-insulated transmission line includes a cylindrical outer sheath, an inner conductor within the outer sheath, an insulating gas, and support insulators for insulatably supporting the inner...
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4526677 |
Removal of polyhalogenated biphenyls from organic liquids
Polyhalogenated biphenyls such as PCB's, contained in transformer or capacitor oils, are removed from the transformer or capacitor oils by means of a combustible adsorbent which selectively adsorbs...
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4487660 |
Multiple wall structure for flexible cable using tubular and spiral corrugations
The central conductor of a gas-insulated flexible cable consists of separate concentric tubes which are alternately spirally corrugated and annularly corrugated so that the corrugations will not...
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4480147 |
Contaminant trap for gas-insulated apparatus
A contaminant trap for a gas-insulated electrical conductor is provided. A resinous dielectric body such as Kel-F wax, grease or other sticky polymeric or oligomeric compound is disposed on the...
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4472700 |
Transformer with copper windings, liquid insulation material and supply depot containing solid copper deactivator to prevent dissolution of the copper
Transformer, including copper windings, electrical insulation for the windings, the electrical insulation being formed of sections of solid and liquid insulating material, the liquid insulating...
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4467305 |
Gas/vapor cooled electromagnetic induction machine
A gas/vapor electromagnetic induction machine comprises an annular coil container including two coaxial electrically insulating cylinders connected at lower ends to an annular bottom plate and...
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4464417 |
Method for minimizing contaminant particle effects in gas-insulated electrical apparatus
Electrical breakdown of a gas insulator in high voltage apparatus is preved by placing an electrical insulative coating on contaminant particles in the gas insulator.
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4458099 |
Three-phase combined type gas insulated electrical apparatus
A three-phase combined type gas insulated bus is disclosed which comprises at least one eddy current conductor for passing the eddy current caused secondarily by the current flowing in high voltage...
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4444995 |
Non-binding conductor load bearing roller for a gas-insulated transmission line having a corrugated outer conductor
A gas-insulated transmission line includes a corrugated outer conductor, an inner conductor disposed within and insulated from the outer conductor by means of support insulators and an insulating...
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4444993 |
Particle trap to sheath non-binding contact for a gas-insulated transmission line having a corrugated outer conductor
A non-binding particle trap to outer sheath contact for use in gas insulated transmission lines having a corrugated outer conductor. The non-binding feature of the contact according to the...
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4442313 |
Conductor load bearing roller for a gas-insulated transmission line having a corrugated outer conductor
A gas-insulated transmission line includes a corrugated outer conductor, an inner conductor disposed within and insulated from the outer conductor by means of support insulators and an insulating...
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4442311 |
Particle trap to sheath contact for a gas-insulated transmission line having a corrugated outer conductor
A particle trap to outer elongated conductor or sheath contact for gas-insulated transmission lines. The particle trap to outer sheath contact of the invention is applicable to gas-insulated...
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4440970 |
Vertically aligned gas-insulated transmission line having particle traps at the inner conductor
Gas insulated electrical apparatus having first and second conductors separated by an insulating support within an insulating gas environment, and particle traps disposed along the surface of the...
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4437082 |
Apparatus for continually upgrading transformer dielectric liquid
Electrical inductive apparatus having a tank, an insulating and cooling liquid in the tank and an electrical winding structure immersed in the liquid, the liquid having a low vapor pressure and...
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4424502 |
Transformer with a controlled flow of cooling liquid
A transformer with a controlled flow of cooling liquid has a pressure chamber (10) which, via a hydraulic connecting member (14), is connected to a circulating pump which is included in a cooling...
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4400578 |
High voltage gas insulated transmission line with continuous particle trapping
This invention provides a novel high voltage gas insulated transmission line utilizing insulating supports spaced at intervals with snap-in means for supporting a continuous trapping apparatus and...
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4372043 |
Method of assembling a gas-insulated power transmission line with duter enclosure of carbon steel and aluminum
A gas-insulated power transmission line includes an outer enclosure containing an inner conductor and insulating supports for insulatably supporting the inner conductor within the outer enclosure....
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4370511 |
Flexible gas insulated transmission line having regions of reduced electric field
A gas insulated transmission line having radially flexible field control means for reducing the electric field along the periphery of the inner conductor at predetermined locations wherein the...
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4347401 |
Gas-filled cable with composite conduit of low carbon steel and aluminum and having particle traps
A gas-filled cable having low heat emission and low power loss and being used for the transmission of high-voltage electric current. The cable includes one or more conductors which are axially...
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4343964 |
Adhesive coated electrical apparatus having sublimable protective covering and an assembly method
Electrical apparatus including an enclosure, an electrode disposed within the enclosure, and supports for insulatably supporting the electrode within the enclosure has a permanently sticky adhesive...
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4336414 |
Method and apparatus for treating noxious gases
Disclosed is a process and apparatus for treating noxious gases and/or substances which are produced by virtue of an electric arc in the event of a switching operation or due to corona discharge. A...
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4335268 |
Particle trap with dielectric barrier for use in gas insulated transmission lines
A gas-insulated transmission line includes an outer sheath, an inner conductor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating...
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4330682 |
Hybrid particle traps and conditioning procedure for gas insulated transmission lines
A gas insulated transmission line includes an outer sheath, an inner condor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating...
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4330681 |
Fluid-filled electric cable joints and terminations with filtering means
Risk that metal particles carried by flowing oil in an oil-filled cable joint or termination will settle along an oil path between a cable conductor and the space bounded by the joint or...
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