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【单选题】
When the synchronous generator is connected in parallel with the power grid, some conditions must be met, but the first condition that must be absolutely met is ()
A.
Equal voltage
B.
Same phase sequence
C.
Same frequency
D.
Same phase
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】If the synchronous generator is connected to the power grid according to the ideal quasi synchronous method without any adjustment, the output power of the synchronous generator to the power grid is (...
A.
P>0,Q>0
B.
P>0,Q<0
C.
P<0,Q>0
D.
P=0;Q=0
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A.
World Cultural Heritage
B.
World Record Heritage
C.
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D.
World Natural Heritage
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A.
The stator leakage reactance
B.
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C.
Reactance of armature reaction
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A.
30
B.
45
C.
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D.
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A.
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B.
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D.
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A.
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B.
可通过淘汰平扫降低患者的辐射剂量
C.
肾排泄期的扫描范围为全泌尿系,从肾上极至耻骨联合
D.
注射利尿剂呋塞米能改善CT尿路图像的总体质量