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http://dx.doi.org/10.7236/JIIBC.2016.16.5.179

Design of Measuring System for Insulation Resistance and Humidity in High-Power XLPE Cables in Operation and the Relationship Between Insulation Resistance and Humidity in the Oversheath  

Um, Kee-Hong (Dept. of Information Technology, Hansei University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.16, no.5, 2016 , pp. 179-184 More about this Journal
Abstract
The usual way used by electric power stations to deliver high levels of generated power is via 6.6kV XLPE (or CV) cables. Depending on the manufacturing technique, installation environment, and usage conditions, the deterioration processes of the power cables start from the instant of operation. Cable junctions may break down in three years from the start of operation due to the manufacturing or construction defects. Otherwise they should be in good working order for 20-30 years. When the cable system (the cable itself and cable junctions combined) deteriorates, fire accidents happen due to the dielectric breakdowns. We have invented a device to monitor the deteriorating status of cables at Korean Western Power Co. Ltd. located in Taean, Chungcheongnam-do province. In this paper, we introduce the device hardware. Using the device, we have measured the insulation resistance and humidity in the sheath of the cables. We present, in analysed results, the effect of humidity on insulation resistance in cable sheaths.
Keywords
XLPE(CV) cable; Megger; Insulation resistance; Neutral ground reactor; entral monitoring system;
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Times Cited By KSCI : 1  (Citation Analysis)
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