A、they are used
B、the field windings are connected to the load
C、the armature circuit is connected to the load
D、the field windings are connected to the armature circuit
更多“DC generators are classified according to the manner in which（）”相关的问题
A、both generate alternating voltages B、both rectify the voltage before delivery C、are constructed at the same physical size for the same kilowatt rating D、both supply three-phase power
A、neutralize armature reaction B、conduct electric current to an outside circuit C、convert DC current to AC current D、provide excitation to a DC generator
A、a variable-speed AC generator B、a fixed-speed AC generator C、an air blower D、a DC generator
A、To cut out generators when they are no longer required B、To cut in additional generators automatically as required C、To divide the KW load equally between generators operating in parallel D、To divide reactive current between generators operating in parallel
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