Browsing School of Electrical Systems Engineering (Articles) by Author "mohdrafi@unimap.edu.my"
Now showing items 1-3 of 3
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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 ... -
An earth fault location scheme for isolated and compensated neutral distribution systems
Mohd Rafi, Adzman; Topolánek, David; Lehtonen, Matti I.; Toman, Petr (Praise Worthy Prize S.r.l., 2013-10)This paper proposes a scheme to locate an earth fault in an unearthed or a compensated neutral medium voltage (MV) network using the transient signal recorded from MV/LV substations. The algorithm applies continuous wavelet ... -
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 ...