Different type power cable core connection device and different type power cable connection system comprising same
AssigneeLs Cable & System Ltd.
InventorsTae Ho Lee, Jin Wook Choe, Woong Yup Lee
Life of this patent
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Abstract
The present disclosure relates to a different type power cable core connection device for minimizing the volume of a connection device for connection of different type power cables and minimizing cracking of an insulation molding part having a connection conductor embedded therein when current is conducted to conductors of cores of the different type power cables, and a different type power cable connection system including the same.
Claims20
A different type power cable core connection device for connecting a paper-insulated power cable core and an XLPE power cable core, comprising an insulated connection sleeve including a connection conductor and an insulation molding part surrounding an outer circumference of the connection conductor, wherein a conductor of the paper-insulated power cable core is connected to one end of the connection conductor and a conductor of the XLPE power cable core is connected to the other end of the connection conductor,
- wherein the connection conductor comprises a constant diameter portion, an expanded diameter portion having an increased outer diameter of the constant diameter portion, and a recessed portion into which the conductor of the XLPE power cable core is inserted, and
- a slope at a point on an outer circumferential surface of the insulation molding part surrounding the expanded diameter portion in a longitudinal direction is a value between a minimum slope and a maximum slope of an outer circumferential surface of the expanded diameter portion.
A different type power cable core connection device for connecting a paper-insulated power cable core and an XLPE power cable core, comprising an insulated connection sleeve including a first conductor part with a connection hole, a second conductor part, and an insulation molding part surrounding an outer circumference of the second conductor part, wherein a conductor of the paper-insulated power cable core is connected to the connection hole, and a conductor of the XLPE power cable core is connected to the second conductor part,
- wherein the second conductor part comprises a constant diameter portion, an expanded diameter portion having an increased outer diameter of the constant diameter portion, and a recessed portion into which the conductor of the XLPE power cable core is inserted, and
- the second conductor part is formed of the same material as a conductor having a coefficient of thermal expansion relatively close to a coefficient of thermal expansion of the insulation molding part among the conductor of the paper-insulated power cable core and the conductor of the XLPE power cable core.
A different type power cable core connection device for connecting a paper-insulated power cable core and an XLPE power cable core, comprising an insulated connection sleeve including a connection conductor and an insulation molding part surrounding an outer circumference of the connection conductor, wherein a conductor of the paper-insulated power cable core is connected to one end of the connection conductor and a conductor of the XLPE power cable core is connected to the other end thereof,
- wherein the connection conductor comprises a constant diameter portion, an expanded diameter portion having an increased outer diameter of the constant diameter portion, and a recessed portion into which the conductor of the XLPE power cable core is inserted, and
- a slope at a point on an outer circumferential surface of the insulation molding part in a longitudinal direction gradually increases to 30 degrees or less in a direction toward the other end of the connection conductor.
Dependencies are inferred from the claim text.