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hsf_edu: ½ð±Ò+20, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ·Ç³£²»´í£¬¾ÍÊÇÎÒÏëÒªµÄ£¬·Ç³£¸Ðл£¡ 2015-03-25 11:40:23
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The test run results revealed that the directional differential protection of aperiodic components was not affected by the influence of line to ground capacitance. Either as a sole major protection, or as a part of the combined protections, it can always accurately identify the short fault of electric system, however, aperiodic components are transient signals with short existence, therefore a signal maintainer is needed during operation.
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