Line loss rate reflects the level of programming designation, production operation and management of power system synthetically. As for increasingly valued fine management, objectively analyzing causes of the fluctuating of line loss rate and establishing perfect management system for statistical line losses by using scientific methods propose a rational statistical line losses rate, thereby, operating economic benefit and the level of management are advanced. This paper introduced basic theories of statistical line losses and methods of analysis and analyzed major fluctuation causes of Jinqiao Power Supply Company, then, using improved method of unmatched between supply and distribution makes rational statistical line losses rate appear based on four operating stations, which showed the method provided in this paper is effective and practical. Meanwhile, practical and management improvement strategy promises the fine management realize in Jinqiao Power Supply Company.
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