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Author: search.filters.author.Kiatjaroonlert, Boonsak

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    Item type:Publication,
    Distributed Temperature Sensing and Real Time Thermal Rating for Underground Power Cable Monitoring
    (2025-01-01)
    Tangtheerajaroonwong, Wiroj
    ;
    Tanapornchinpong, Phiphat
    ;
    Kiatjaroonlert, Boonsak
    ;
    Khan-Ngern, Werachet
    ;
    Sangracha, Chanintorn
    This paper presents the distributed temperature sensing (DTS) technology and its application mainly on underground power cables. The main measuring principle is detecting the back-scattering light via Raman scattering that varies and depends on temperature at each point of optical fiber. In this paper, the authors present the monitoring results that the load current is applied for 50% of the rated current of the 69 kV and 115 kV transmission cables, and the DTS detects temperature increasing 0.5°C from the ambient temperature. This paper also shows real time thermal rating for calculations of conductor temperature.
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    Improvement of Lightning Conductors to Prevent Creeping Discharge
    (2024-01-01)
    Sirachansawang, Pathorn
    ;
    Phommeepun, Surachai
    ;
    Tangtheerajaroonwong, Wiroj
    ;
    Buranaaudsawakul, Techatat
    ;
    Apiratikul, Promsak
    This research is a test of a lightning conductor that can prevent or reduce the distance from lightning current jumps between the lightning conductor and nearby metal. The lightning conductor must have durable insulation to protect against lightning current jumps to a certain extent. But if the separation distance (s) cannot be maintained, the potential must be coordinated with the lightning conductor to prevent the occurrence of metal arcs. This research will test the ability to protect the separation distance, s = 50 cm. A copper lightning conductor has a cross-sectional area of 50 sq.mm. and the thickness of the electrical insulation is an important part in protecting against a voltage of 600. kV. If there is no insulation to protect the voltage at 600 kV, the ability to jump the lightning current will be at a distance of 50 m. The KHV cable is important for intelligent buildings that have lightning protection systems. It can isolate electrical and electronic equipment and external lightning protection.