Patent ID: 6255808
Filing Date: 2001-07-03
Classification: G01R

Abstract:
A device for measuring a partial discharge in a gas-insulated high voltage facility, comprising:a first calibratable sensor for measuring a high-frequency (HF) signal component in an HF range;a second sensor for detecting an ultra-high frequency (UHF) signal component characteristic of a partial discharge;a metal enclosure, the first sensor and the second sensor being arranged in the metal enclosure;a first branch coupled to the first sensor for processing the HF signal component;a second branch coupled to the second sensor for processing the UHF signal component; anda gate device coupled to the first sensor and second sensor, the gate device being actuated when the UHF signal component characteristic of a partial discharge is sensed, wherein when the gate device is actuated, the gate device allows the HF signal component to pass through for further processing.