High voltage measurement
Since optical electric-field probes allow the measurement of strong electric field, both continuous wave (CW) and transient (lightning strikes and surge voltages), safely and under extreme conditions (vacuum, high pressure, oil immersion), KAPTEOS solution meets the needs of electric field measurements and diagnostic for high voltage measurement inside equipment.
KAPTEOS has conducted many studies and manufactured numerous systems on behalf of its clients: characterization of dV/dt on power electronics components, electric-field mapping on new or active equipment, partial discharge assessment, dielectric barrier discharge measurements and characterization of electrical discharges such as lightning (1 MV, 40 kA).
Discover KAPTEOS technology on video
Find here a video of KAPTEOS technology allowing the measurement of dielectric barrier discharge.
Case studies
by L. DUVILLARET
by L. DUVILLARET
They use KAPTEOS technology for their R&D
"Characterization of Corona and Dielectric Barrier Discharge using Pockels Effect Based Electro-Optic Probe", S. S. Hegde et al., IEEE Transactions on Industry Applications vol. 61, 2373 (2025), DOI: https://doi.org/10.1109/TIA.2025.3590676
"Experimental Investigation of Parameters Influencing the Formation of Dry Bands and Related Electric Field", M.-A. Andoh Koné et al., Energies vol. 17, 2373 (2024),
"Review on sensors for electric fields near power transmission systems", W. Hortschitz et al., Measurement Science and Technology vol. 35, 052001 (2024),
"Evaluating the impact of air terminal geometry on lightning intercept efficacy under a strong background electric field", N. Fryar et al., AIP Advances vol. 14, 045235 (2024),
"Transient Surface Electric Field Measurement of the Composite Insulators Using an Integrated Optics Sensor", J. Zhang et al., IEEE Transactions on Instrumentation and Measurement vol. 73, 6009413 (2024), DOI: https://doi.org/10.1109/TIM.2024.3470062
"Stretched grid finite difference method for computation of electric field in composite insulators with defects", M. Ramesh et al., Electric Power Systems Research vol. 192, 106875 (2021),
"Pigtailed Electrooptic Sensor for Time- and Space-Resolved Dielectric Barrier Discharges Analysis", F. Aljammal et al., IEEE Transactions on Instrumentation and Measurement vol. 70, 9512609 (2021), DOI: https://doi.org/10.1109/TIM.2021.3107037
"Method for Localization Aerial Target in AC Electric Field Based on Sensor Circular Array", W. Zhang et al., Sensors vol. 20, 1585 (2020), DOI: https://doi.org/10.3390/s20061585
"Prediction of flashover voltage using electric field measurement on clean and polluted insulators", L. Cui et al., International Journal of Electrical Power & Energy Systems vol. 116, 105574 (2020), DOI: https://doi.org/10.1016/j.ijepes.2019.105574
"Experimental Investigation of the Spatial and Temporal Evolution of the Tangential and Normal E-Field Components along the Stress Grading System of a Real Stator Bar", G. Koné et al., Energies vol. 13, 534 (2020), DOI: https://doi.org/10.3390/en13030534
"Impact of superficial and internal defects on electric field of composite insulators", M. Ramesh et al., International Journal of Electrical Power & Energy Systems vol. 106, p. 327 – 334 (2019), DOI: https://doi.org/10.1016/j.ijepes.2018.10.013
"New Method for in Live-Line Detection of Small Defects in Composite Insulator Based on Electro-Optic E-Field Sensor", C. Volat et al., IEEE Transactions on Dielectrics and Electrical Insulation vol. 20, p. 194-201 (2013), DOI: https://doi.org/10.1109/TDEI.2013.6451358
