Closure for measuring voltage on power-carrying conductors
First Claim
1. A closure for receiving a section of a conductor assembly, the conductor assembly comprising a conductor which defines axial directions and radial directions, the closure comprising a housing closable around the conductor assembly and a first electrode assembly, wherein the first electrode assembly comprisesa) a movable portion which is movable relative to the housing, the movable portion comprising a contact surface for mechanically contacting the conductor assembly, andb) an electrically conductive first sensing electrode, operable as a first capacitor electrode of a sensing capacitor, wherein the sensing capacitor comprises the conductor, or a conductor extension, as a second capacitor electrode and an electrically insulating layer, arranged between the conductor and the first sensing electrode when the housing is closed around the conductor assembly, as a dielectric, wherein, the closure further comprises urging means, arranged between the housing and the first electrode assembly, the urging means being adapted to urge the movable portion of the first electrode assembly, relative to the housing, towards the conductor assembly for establishing a mechanical surface contact between the contact surface and an outer surface of the conductor assembly, when the housing is closed around the conductor assembly, wherein the conductor assembly comprisesan insulating layer, arranged concentrically around the conductor, and operable as a dielectric of the sensing capacitor, anda conductive or semiconductive layer arranged on the insulating layer,a first axial section in which the outer surface of the conductor assembly is the outer surface of the insulating layer, anda second axial section in which the outer surface of the conductor assembly is the outer surface of the conductive or semiconductive layer, andwherein the closure comprises an electrically conductive first auxiliary electrode, electrically insulated from the first sensing electrode, and arranged inside the housing in axially spaced relation to the first sensing electrode, such that the first auxiliary electrode can mechanically and electrically contact the second axial section, when the housing is closed around the conductor assembly such that the contact surface of the first electrode assembly mechanically contacts the first axial section.
1 Assignment
0 Petitions
Accused Products
Abstract
Closure (1) for receiving a section of a conductor assembly (71), comprising a housing (25) closable around the conductor assembly (71), and an electrode assembly (200), which comprises a movable portion comprising a contact surface (150) for mechanically contacting the conductor assembly (71), and a sensing electrode (140), operable as a first capacitor electrode of a sensing capacitor for sensing a voltage of the conductor (80). The closure further comprises urging means (160) for urging the movable portion of the electrode assembly (200) towards the conductor assembly (71) for establishing a mechanical surface contact between the contact surface (150) and the conductor assembly (71), when the housing (25) is closed around the conductor assembly (71).
18 Citations
12 Claims
-
1. A closure for receiving a section of a conductor assembly, the conductor assembly comprising a conductor which defines axial directions and radial directions, the closure comprising a housing closable around the conductor assembly and a first electrode assembly, wherein the first electrode assembly comprises
a) a movable portion which is movable relative to the housing, the movable portion comprising a contact surface for mechanically contacting the conductor assembly, and b) an electrically conductive first sensing electrode, operable as a first capacitor electrode of a sensing capacitor, wherein the sensing capacitor comprises the conductor, or a conductor extension, as a second capacitor electrode and an electrically insulating layer, arranged between the conductor and the first sensing electrode when the housing is closed around the conductor assembly, as a dielectric, wherein, the closure further comprises urging means, arranged between the housing and the first electrode assembly, the urging means being adapted to urge the movable portion of the first electrode assembly, relative to the housing, towards the conductor assembly for establishing a mechanical surface contact between the contact surface and an outer surface of the conductor assembly, when the housing is closed around the conductor assembly, wherein the conductor assembly comprises an insulating layer, arranged concentrically around the conductor, and operable as a dielectric of the sensing capacitor, and a conductive or semiconductive layer arranged on the insulating layer, a first axial section in which the outer surface of the conductor assembly is the outer surface of the insulating layer, and a second axial section in which the outer surface of the conductor assembly is the outer surface of the conductive or semiconductive layer, and wherein the closure comprises an electrically conductive first auxiliary electrode, electrically insulated from the first sensing electrode, and arranged inside the housing in axially spaced relation to the first sensing electrode, such that the first auxiliary electrode can mechanically and electrically contact the second axial section, when the housing is closed around the conductor assembly such that the contact surface of the first electrode assembly mechanically contacts the first axial section.
Specification