Method and apparatus for fusing electrical power equipment enclosed in a tank and surrounded by insulating fluid
OwnerFrank C. Trayerinventor
Life of this patent
Estimating the term…
Abstract
A vacuum fuse is mounted in an insulating oil filled tank containing electrical apparatus and is directly immersed in the insulating oil. A fuse ferrule contact block is suspended in the insulating oil. The suspension for the contact block permits insulating oil to contact the contact block over its entire surface. An opening in the tank top large enough to accommodate the fuse is located adjacent the contact block. One ferrule of the fuse is provided with a cylindrical extension to contact the contact block. The other ferrule is provided with an extension on which is mounted a bushing well and a cover plate.
Claims11
The method of mounting fuse means having a first ferrule and a second ferrule in a tank containing electrical power equipment surrounded by insulating fluid, comprising the steps of:
- affixing to said first ferrule a conductor which passes through and is sealed to a cover for covering an opening in a wall of said tank;
- passing said fuse means through said opening and into said insulating fluid;
- and
- connecting said second ferrule to a connector suspended in and contacted by said insulating fluid while positiong said cover over said opening.
The method of replacing fuse means having a first ferrule and a second ferrule enclosed in the same tank with and immersed in the same body of insulating fluid as electrical power equipment, comprising the steps of:
- disconnecting one ferrule of said fuse means from its associated power line without displacing said fuse means;
- withdrawing said fuse means from said body of insulating fluid and from said tank;
- immersing replacement fuse means in said body of insulating fluid;
- and
- connecting said replacement fuse to said power line.
A submersible component for an electrical power system, comprising:
- a closed tank containing a body of insulating fluid and electrical power equipment, said electrical power equipment being surrounded and contacted by said body of insulating fluid;
- fuse means comprising a plurality of fuses and having outwardly extending ferrules;
- suspender means for suspending a connector for connection to one ferrule of said fuse means within and in contact with said body of insulating fluid;
- an opening in a wall of said tank through which said fuse means may be withdrawn from said body of insulating fluid and from said tank after being disconnected from said connector;
- and
- cover means for covering said opening;
- a second ferrule of said fuse means being attached to a conductor which passes through insulating bushing means, said insulating bushing means passing through and being sealed to said cover means.
An enclosure for electrical power equipment, comprising:
- a tank capable of containing electrical power equipment and a body of insulating fluid surrounding and contacting it, and having an opening through one of its walls large enough to admit a fuse assembly comprising a plurality of fuses and having outwardly extending ferrules, and cover means for said opening;
- insulating bushing means passing through and sealed to said cover means;
- connector means for making connection with one ferrule of said fuse assembly;
- means for affixing said fuse assembly to said insulating bushing means and connecting a ferrule of said fuse assembly to a conductor which passes through said insulating bushing means;
- and
- suspender means for so suspending said connector means in said tank that said body of insulating fluid will surround and contact said fuse assembly when one of its ferrules is connected to said connector means.
A submersible component for an electrical power system, comprising:
- a closed tank containing a body of insulating fluid and electrical power equipment, said electrical power equipment being surrounded and contacted by said body of insulating fluid;
- a fuse assembly comprising a plurality of fuses and having outwardly extending ferrules;
- suspender means for suspending a connector for connection to one ferrule of said fuse assembly within and in contact with said body of insulating fluid;
- an opening in a wall of said tank through which a fuse assembly may be withdrawn from said body of insulating fluid and from said tank after being disconnected from said connector;
- and
- cover means for covering said opening;
- a second ferrule of said fuse assembly being attached to a conductor which passes through an insulating bushing;
- said insulating bushing passing through and being sealed to said cover means.
Dependencies are inferred from the claim text.