单选题A probable cause for a turbo generator tripping out on overspeed is a sudden（）Aloss of field excitationBtotal loss of loadClarge increase in loadDloss of steam pressure
单选题
A probable cause for a turbo generator tripping out on overspeed is a sudden（）
A
loss of field excitation
B
total loss of load
C
large increase in load
D
loss of steam pressure
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解析：
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