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7902951 |
Hermetically sealed electrical apparatus
An electric apparatus, preferably a transformer, is hermetically sealed and filled with a dielectric liquid. Devices for recording heat-related volume variations of the dielectric liquid are...
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6384322 |
Hermetic enclosure having air pressure adjustable function
A hermetic enclosure having an air pressure adjustable function, which can adjust inside air pressure of the hermetic enclosure, is provided. In order to prevent devices in the hermetic enclosure...
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5976226 |
Means to ensure a minimum of gas content in liquids used for heat exchange and insulating purposes with complementary means for liquid expansion into vessels with variable volumes
The invention, intended for large power transformers and industrial heat transfer installations, is systemic in nature and calls upon two components which complement each other, the first one...
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5629495 |
Waterproof box-like casing
A waterproof box-like casing including, a box-like body having an opening, a lid for closing the opening and having a communication hole, and a bulkhead member for covering the communication hole...
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5466890 |
Expansion joint for an electrical conduit which is electrically grounded through the expansion joint
Two electrical conduit sections are attached to a thermal expansion joint which permits relative axial movement between the conduit sections. One of the conduit sections has an end portion which is...
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5324886 |
Insulating-liquid immersed electrical machine
An insulting-liquid immersed electrical machine comprises an electrical machine, a hermetically sealed tank containing the electrical machine, and insulating liquid arranged between the electrical...
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5122926 |
Housing for an electric device
A housing for an electric device, such as a power transformer or an X-ray tube, comprises a tank which contains electric components of the device and which is filled with an insulating and/or...
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5047744 |
High voltage fluid filled transformer
A transformer of the type used to produce high voltage for an electrostatic field apparatus has a hermetically sealed container. The container encloses a coil assembly having primary and secondary...
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4759811 |
Method for repair or accessing pressurized cable
A unique air vent is provided for use with heat-recoverable closures when installed on pressurized cables. Typically, when a heat-recoverable closure is used to repair a hole or opening in the...
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4700272 |
Apparatus and method for compensation of thermal expansion of cooling fluid in enclosed electronic packages
In an electronic package in which a fluid is encased to provide efficient thermal transfer between electronic components and cooling plate, the thermal expansion of the cooling fluid is compensated...
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4693540 |
Pressure regulating devices
A pressure regulating device for fluidtight, fluid-filled apparatus comprises a solid body with a shallow recess in a surface enclosed by a flexible diaphragm. A narrow passage, preferably of...
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4609900 |
High-voltage transformer with liquid cooling
In a high-voltager transformer including a closed casing, a magnetic core with at least one winding, a cooling liquid filling the casing and surrounding the winding, and insulated casing...
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4580002 |
Method and apparatus for replacing flammable oil in an electrical cable and cable so treated
Method and apparatus for replacing flammable, insulating oil in an oil-filled electric cable by non-flammable, insulating oil in which the flammable oil is withdrawn at least from the cable oil...
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4555587 |
Enclosure for a power supply
An enclosure includes a closed housing having a wall dividing the housing into a first compartment containing a high voltage portion of the power supply and a second compartment containing a low...
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4502032 |
Ebullition cooled transformer
An ebullition cooled transformer has a housing, a core and coil assembly disposed on the lower portion of the housing to be immersed into a condensible electrically insulating refrigerant, a cooler...
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4331830 |
Housing for electrical components
A heat dissipating container for electrical components immersed in a liquid dielectric in one chamber and for electrical components surrounded by an air dielectric in another chamber. A flexible...
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4251681 |
Compressed gas insulated high voltage line
A compressed gas insulated high voltage line which has a metal encapsulation and supports the high voltage conductors on support insulators in which movability of the conductor in the axial...
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4145679 |
Vaporization cooled and insulated electrical inductive apparatus
Electrical inductive apparatus cooled and electrically insulated by a vaporizable liquid dielectric having a boiling point within the normal operating temperature range of the apparatus. When the...
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4097681 |
Interface for high voltage oil-filled and gas-filled apparatus
Gas-insulated electrical apparatus is connected to oil-insulated electrical apparatus within an intermediate oil-filled tank having an oil pressure lower than the pressure within the oil-insulated...
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4092484 |
Arrangement to prevent corona discharge and electric rupture in high voltage electrical components
The arrangement includes an enclosed container containing therein high voltage electrical components. A dielectric oil is disposed in and completely fills the container. A volume/pressure...
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4066496 |
Cryogenic expansion joint for large superconducting magnet structures
An expansion joint is provided that accommodates dimensional changes occurring during the cooldown and warm-up of large cryogenic devices such as superconducting magnet coils. Flattened tubes...
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4058671 |
Electrical penetration assembly
An electrical penetration assembly for a nuclear reactor containment wall in which solid copper conductors are removably mounted into the penetration canister from outside the containment wall....
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4057453 |
Method for manufacturing and laying out phase cores for oil-filled cables and a device for accomplishing same
The invention relates to a method of manufacturing phase cores for oil-filled cables and apparatus therefor, whereby a current-carrying core is obtained by means of twisting together a number of...
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4053700 |
Coupling flex-plate construction for gas-insulated transmission lines
A coupling flex-plate member comprising a circular metallic member having a centrally-disposed annular groove provided therein, providing a generally H-shaped cross-section, is fixedly secured to...
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3963297 |
Underwater pressure compensated electrical connector
An underwater electrical connector having an oil filled chamber in one connector member behind the insulator therein in which the contacts are mounted. A pressure compensating bellows is mounted in...
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3934453 |
Conservator system
A conservator system for transformers includes a conservator tank. The apparatus is filled with oil which is saturated with a non-combustible gas. The conservator tank is connected by conduits to...
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3892937 |
Apparatus for underwater welding of metal structures
Apparatus for the underwater welding of metal structures comprising a hermetically sealed housing wherein are accommodated an electric motor and a reducing gear immersed in a lubricant which is...
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3819845 |
TERMINATION FOR METAL ENCLOSED, COMPRESSED GAS INSULATED ELECTRICAL CONDUCTOR
A high voltage conductor is enclosed in a grounded metal enclosure. The conductor is insulated from the enclosure by a compressed insulating gas. The conductor extends through while its enclosure...
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3750088 |
HIGH PRESSURE ELECTRICAL FEED-THROUGH FITTING
A high pressure electrical feed-through fitting, such as for providing connections between electrical cables in an underwater environment and the interior of a vessel, has a pressure-barrier...
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3728463 |
EXPANSION AND CONTRACTION COMPENSATION ARRANGEMENT FOR SUPERCONDUCTING CABLES
A compensation arrangement for accommodating the contraction occurring in superconducting cables as they are cooled down to the operating temperature. The superconducting cable is of the type...
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3670276 |
HERMETIC TRANSFORMER
A hermetically-sealed completely oil-filled high voltage transformer of small size and rugged construction for use over a wide range of ambient temperature and ambient pressure. Required expansion...
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3629487 |
PRESSURIZED MULTISTRAND CABLE AIR BYPASS AND TESTING DEVICE
Sections of relatively soft, resilient tubes are inserted through a gas barrier into the pressurized portion of multistrand cables. The free ends of the tubes are connected to a self-closing valve...
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3597522 |
VIBRATION DAMPER FOR CONDUCTORS
In a damper comprising a conductor-grasping element and a weight, said element providing a box-shaped housing so that a portion of said weight can be introduced into it, whereby elastic or...
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3595984 |
POWER CABLE TERMINATION
A tee connector for a pair of power distribution cables and a rigid insulating bushing, comprising a central housing having a pair of parallel-disposed cable termination legs, and a relatively...
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3566001 |
GAS-FILLED BUSHING WITH SPRING BIAS CLAMPING AND INTERNAL FLEXIBLE SHUNT
A hollow insulation column has a central conductor extending therethrough, and the insulation column is filled with a high-pressure gas, such as sulfur hexafluoride, under greater than atmospheric...
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3564119 |
PRESSURE-EQUALIZING ACCESSORY FOR CABLES
A cable-pressure-equalizing accessory having a cup-shaped member fixed to the outer end of a tubular fitting. The latter is equipped with adjustable split ring means for holding the tubular fitting...
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3549780 |
CONTRACTION JOINT
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3485930 |
COOLING OF OIL-FILLED ELECTRICAL POWER CABLES
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3485936 |
COMPACT THERMAL EXPANSION ABSORBING UNIT FOR ELECTRIC POWER BUSWAYS
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3479444 |
ELECTRICAL CONNECTION BETWEEN MOVABLE PARTS
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3470307 |
CAPACITORS
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3469862 |
EXPANSION JOINTS WITH FROZEN SEALS
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3454842 |
CAPACITOR COOLING MEANS
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3453359 |
PROCESS FOR MAKING CORRUGATED TUBING
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3448219 |
PRESSURE BALANCING CONSERVATOR FOR A TRANSFORMER
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3447552 |
SEAWATER HYDRAULIC SYSTEM FOR DEEP SUBMERGENCE SALVAGE AND EXPLORATION VEHICLES
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3422853 |
WATER HAMMER ARRESTER WITH CONTROLLED ORIFICE
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3411069 |
Capacitive volage transformer and current transformer combination unit
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3390017 |
Sealed electrochemical cell provided with a flexible casing
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3389213 |
Expansion joints for isolated phase bus bars and ducts
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