瀑布沟水电站电气主接线方案可靠性计算

较全面地介绍了大型电站电气主接线可靠性评估实用技术。并结合瀑布沟水电站电气主接线可靠性计算，从供电连续住、充裕性、安全性等方面对各接线方案进行了可靠性分析，对ＳＦ６管道母线、５００ｋＶ电缆等设备故障参数的不确定性，作了参数敏感性分析。最终从可靠性的角度选择出４／３与双断路器混合接线方案作为瀑布沟水电站初步设计的推荐方案。

RELIABILITY EVALUATION ON SCHEMES OF ELECTRIC ONE-LINE DIAGRAM FOR PUBUGOU HYDROELECTRIC POWER STATION

Practical technology of reliability evaluation on electric one-line diagrams for large-scale hydroelec-tric power station is introduced comprehensively.In regard to the continuity,abundance and safety,the relia-bility analyses on various schernes of electric one-line diagrain was made on the basis of reliability calculationof electric one-line diagram for Pubugou hydroelectric power station. Sensitive analyses of the fault parame-ters of SF6 insulated bus duct and 500 kV cable was also made because of the uncertainty of the fault parame-ters of above equipment Finally,4/3 and double circuit breakers mixed connection was proposed as the alter-native of preliminary design for Pubugou hydroelectric power station aecording to reliability evaluation.