Browsing School of Electrical Systems Engineering (Articles) by Author "Lehtonen, Matti"
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Diagnosis of MV oil filled cable terminations with X-ray imaging and infrared (IR) thermography
Mohd Rafi, Adzman; Ismail, Daut, Prof. Dr.; Muzamir, Isa; Baharuddin, Ismail; Omar, Aliman; Lehtonen, Matti; Hyvonen, Petri (Science Publications, 2007)A main purpose of doing a diagnostic in cable system including its accessories such as impregnated paper insulated oil filled cable termination is to predict failure before they occur. Those cable and accessories, which ... -
A method for ground fault distance computation in unearthed medium voltage distribution network
Mohd Rafi, Adzman; Lehtonen, Matti (Praise Worthy Prize S.r.l., 2012)In networks with unearthed or compensated neutral, earth fault signals consist of different frequency components, which result from charging and discharging of the network capacitances. The charge transient which usually ...