单选题A three-phase alternator operates at 450 volts with a power factor of 0~8.If the ammeter indicates 250 amperes, what should be the KW meter reading （）.A90~0 kwB127~27 kwC155~70 kwD194~85 kw
单选题
A three-phase alternator operates at 450 volts with a power factor of 0~8.If the ammeter indicates 250 amperes, what should be the KW meter reading （）.
A
90~0 kw
B
127~27 kw
C
155~70 kw
D
194~85 kw
参考解析
解析：
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