Measurement device for use in high-voltage gas-insulated switch

Details Measurement device for use in high-voltage gas-insulated switch Measurement device for use in high-voltage gas-insulated switch

1984-07-24

1986-10-14

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

361306, H01H 950, H01G 100

Patent

active

046175130

ABSTRACT:
Partial discharges are to be detected within a metal-encapsulated, compressed-gas-insulated high-voltage switchgear using a capacitive voltage divider. The measurement device used for this purpose contains an electrode which is dish-shaped and is inserted flush in an opening of the capsule. A measurement cable leading to the display or measurement unit is built up coaxially and connected with a terminal element which is a supporting component and contains the electrode and the edge of the opening in the capsule. In addition, the terminal includes an outer connecting element in the shape of a hollow cone which extends to the edge of the opening and an inner connecting element in the shape of a cone that extends to the electrode, which are coaxially arranged, the ratio of whose diameters d.sub.a /d.sub.i is constant, and which have the characteristic impedance of the measuring cable.

REFERENCES:
patent: 2613345 (1952-10-01), Osterland
patent: 3939412 (1976-02-01), Hermstein et al.

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