This work is performed to assess the role played by some quantities affecting space charge measurements with the Pulse Electro-Acoustic (PEA) technique in HVDC power cables. In particular, the possible disturbances to the PEA signal arising when measuring space charges with a commercial PEA cell not optimized for the cable system to be measured, which may affect consequently the estimation of trapped charge and the field profile within the insulation, are analyzed. The results show that in particular, cable length, cell arrangement and exposed semicon length play a role and may affect the PEA signal significantly. Thus they have to be optimized for the cable to be measured.
Issues in Space Charge Measurements with the PEA Technique in HVDC Cables: Applicative Case Study / Albertini, Marco; Bononi, Stefano Franchi; Giannini, Simone; Troia, Ivan; Sica, Gerardo; Mazzanti, Giovanni; Pini, Dario. - ELETTRONICO. - 2018-:(2018), pp. 8544833.473-8544833.476. (Intervento presentato al convegno 2018 IEEE CEIDP Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2018 tenutosi a Iberostar Hotel and Resort Cancun, Boulevard Kukulcan Km. 17, mex nel 2018) [10.1109/CEIDP.2018.8544833].
Issues in Space Charge Measurements with the PEA Technique in HVDC Cables: Applicative Case Study
Mazzanti, Giovanni
;
2018
Abstract
This work is performed to assess the role played by some quantities affecting space charge measurements with the Pulse Electro-Acoustic (PEA) technique in HVDC power cables. In particular, the possible disturbances to the PEA signal arising when measuring space charges with a commercial PEA cell not optimized for the cable system to be measured, which may affect consequently the estimation of trapped charge and the field profile within the insulation, are analyzed. The results show that in particular, cable length, cell arrangement and exposed semicon length play a role and may affect the PEA signal significantly. Thus they have to be optimized for the cable to be measured.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
