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Comparative diagnostic tests were performed in the laboratory on oil-impregnated paper and resin-bonded paper bushings. The bushings have undergone long-term AC tests and insulation capacitance, dissipation factor and partial discharge were continuously monitored. A 110 kV oil impregnated paper bushing with artificially induced defects was tested. The effect of insulation contamination and oil leakage...
US and Canadian gas consumers are averse to long-term physical contracts - the traditional mechanism for securing LNG in the world market. While North America will become increasingly reliant on LNG, without committing to this form of natural gas supply, it may not be available if needed in the years ahead. We highlight the risk that in any given period, LNG flows could fall to low levels, even zero,...
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