Experimental and Simulation Studies on Stable Polarity Reversal in Aged HVDC Mass-Impregnated Cables
Sun-Jin Kim,
Seol Lee,
Woo-Sung Choi
et al.
Abstract:Mass-impregnated (MI) cables have been used for many years as cables in high-voltage direct current (HVDC) systems. In line commutated converter (LCC) HVDC systems, polarity reversal for power flow control can induce significant electrical stress on MI cables. Furthermore, the mass oil and kraft paper comprising the impregnated insulation have significantly different coefficients of thermal expansion. Load fluctuations in the cable lead to expansion and contraction of the mass, creating pressure within the ins… Show more
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