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【单选题】
对于无刷同步发电机并联运行时，为使无功功率自动均匀分配，常采取的措施是在调压装置中 。A.
设有调差装置
B.
设有差动电流互感器的无功补偿装置
C.
一律设立直流均压线
D.
视情形设立直流或交流均压线
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皮皮学刷刷变学霸
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