TY - CONF A1 - Rohwetter, Philipp A1 - Habel, Wolfgang A1 - Heidmann, G. A1 - Pepper, D. T1 - Fibre-optic acoustic detection of damage processes in elastomeric insulation under AC and DC stress T2 - ISH 2013 - 18th International symposium on high voltage engineering CY - Seoul, Korea DA - 2013-08-25 KW - Fibre-optic condition monitoring KW - Acoustic emission KW - Partial discharge KW - High voltage DC KW - Silicone elastomer KW - Insulation failure KW - High voltage cable accessories PY - 2013 IS - OD1-03 SP - 663 EP - 668 AN - OPUS4-29716 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohwetter, Philipp A1 - Kielau, T. A1 - Lothongkam, Chaiyaporn A1 - Heidmann, G. A1 - Habel, Wolfgang ED - Liao, Y. ED - Jin, W. ED - Sampson, D.D. ED - Yamauchi, R. ED - Chung, Y. ED - Nakamura, K. ED - Rao, Y. T1 - All fibre-optic simultaneous detection of optical and acoustic emission from partial discharges in silicone elastomer N2 - In high-voltage facilities of power stations and transmission networks, discharge activities leading to catastrophic failure can occur. Early detection of partial discharges (PD) in polymeric insulations of HV cable terminations and joints is therefore increasingly important. This paper describes a monitoring methodology to detect PD activity in silicone elastomer by two independent fibre-optic sensor types. Fluorescent fibre-based sensors are sensitive to plasma optical emission already at the onset of PD while an acoustic fibre-optic sensor responds to acoustic emission from the PD during its progression. The sensitivities of both sensor types are compared, and it is demonstrated that they provide complementary information for fibre-optic sensor-based monitoring of high-voltage cable accessories.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only. T2 - OFS2012 - 22nd International conference on optical fiber sensors CY - Beijing, China DA - 15.10.2012 KW - Fiber optic sensors KW - Plasma KW - Sensors KW - Fibre-optic condition monitoring KW - Partial discharge KW - Acoustic emission KW - High-voltage breakdown KW - Silicone elastomer KW - Stress cone KW - Fluorescent fibre KW - High voltage cable accessories PY - 2012 DO - https://doi.org/10.1117/12.974941 SN - 0277-786X SN - 1996-756X N1 - Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE IS - 8421 SP - 8421B9-1 EP - 8421B9-4 PB - SPIE, the International Society for Optical Engineering CY - Bellingham, Wash. AN - OPUS4-27323 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -