某电力系统综合负荷的单位调节功率为400MW/Hz,系统负荷增大800MW时,调频电厂经二次调频增发400MW,系统频率变化为0.2Hz,计算系统等值发电机的单位调节功率( )
发布时间:2026-01-23
A.200
B.400
C.800
D.1600
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