A、an exciter driven by the same shaft with the generator
B、an exciter driven by external prime mover
C、generator itself
D、either A and B
更多“The DC excitation to the field of brushless synchronous is generally produced by （）”相关的问题
A、A.speed of the prime mover B、B.AC excitation to the field C、C.DC excitation to the field D、D.DC excitation of the voltage regulator
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、It consumes no excitation power B、It has current transformers C、Components are needed for accurate compounding D、Its excitation system is vulnerable to voltage variations
A、Run the wecutil qc command on DC1. B、Run the wecutil qc command on DC2. C、Run the winrm quickconfig command on DC1. D、Run the winrm quickconfig command on DC2. E、Add the DC2 account to the Administrators group on DC1. F、Add the DC1 account to the Administrators group on DC2.
A、Run the wecutil qc command on DC1. B、Run the wecutil qc command on DC2. C、Run the winrm quickconfig command on DC1. D、Run the winrm quickconfig command on DC2. E、Add the DC2 account to the Administrators group on DC1. F、Add the DC1 account to the Administrators group on DC2.
A、Run the wecutil qc command on DC1. B、Run the wecutil qc command on DC2. C、Run the winrm quickconfig command on DC1. D、Run the winrm ruickconfig command on DC2. E、Add the DC2 account to the administrators group on DC1. F、Add the DC1 account to the administrators group on DC2.
A、increase the field excitation B、decrease the field excitation C、increase the number of magnetic poles D、increase the speed of the prime mover
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