在我国电力系统中，同步发电机的励磁系统主要有直流励磁机励磁系统和半导体励磁系统两种。
Within our countrys power system, synchronous generator excitation system primarily consists in direct current exciter system and semiconductor exciter system.
对传统直流励磁机的励磁系统而言，其带有滑动接触部分的换向器和炭刷等薄弱环节，需要定时检修与维护。
The exciter system of traditional dc exciter has some weaknesses, whose commutators and carbon brushes often need examining, repairing and maintaining timely.
对传统直流励磁机的励磁系统而言，其带有滑动接触部分的换向器和炭刷等薄弱环节，需要定时检修与维护。
The exciter system of traditional dc exciter has some weaknesses, whose commutators and carbon brushes often need examining, repairing and maintaining timely.
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