Based on the national statistical investigations on reliability indexes in 2008 for thermal power units of 100 MW and the above, hydropower units of 40 MW and the above, the five main auxiliary power equipment for thermal power units of 200 MW and above, as well as the statistic index comparison of resent years, the trend of generating reliability was proposed, and the effect factors were also analyzed and evaluated. This provides a useful basis to improve the reliability management of power utilities.%通过对2008年全国100MW及以上容量火电、40MW及以上容量水电发电机组、200MW及以上容量火电机组5种主要发电辅助设备可靠性的计划停运、非计划停运及主要影响因素进行分析与评估,特别是通过近几年的指标分析比较,提出影响可靠性因素的变化趋势,为提高发电企业可靠性管理提供了有益的依据.
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