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当前学科:电力系统
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当电力系统出现功率缺额时,如果只靠负荷调节效应进行补偿,系统的稳定频率为47Hz,此时若通过减负荷装置动作切除一部分负荷,系统的稳定频率()。
A . 保持47Hz不变
B . 低于47Hz
C . 高于47Hz
D . 可能高于47Hz也可能低于47Hz
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