Title :
Estimation of mass and length of moving particles in GIS by combined acoustical and electrical PD detection
Author :
Schlemper, H.-D. ; Feser, K.
Author_Institution :
Inst. of Power Transmission & High Voltage Technol., Stuttgart Univ., Germany
Abstract :
Risk assessment of moving metallic particles in GIS requires the estimation of a particle´s dimensions and mass from partial discharge measurements. A procedure to estimate these parameters is derived. It requires parallel acoustic and electric PD detection. It is independent of the unknown acoustic signal attenuation between the particle and the sensor and yields length and mass of straight elongated particles
Keywords :
acoustic applications; gas insulated substations; impulse testing; insulation testing; length measurement; mass measurement; partial discharges; 1.5 m; 123 kV; 5.6 m; 550 kV; GIS; acoustic signal attenuation; acoustical PD detection; electrical PD detection; moving metallic particles; moving particle length; moving particle mass; partial discharge measurements; risk assessment; single phase insulated GIS bus ducts; straight elongated particles; Acceleration; Acoustic pulses; Acoustic signal detection; Acoustic testing; Geographic Information Systems; Insulation; Partial discharges; Power transmission; Risk management; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location :
Millbrae, CA
Print_ISBN :
0-7803-3580-5
DOI :
10.1109/CEIDP.1996.564601
