介绍和分析了SX421自动电压调节器的结构和原理，在此基础上，本文将其应用于发电机组励磁调压系统。

On the basis of introducing the structure and analyzing the principle of SX421 automatic voltage regulators, this paper applies them to the generating unit excitation voltage system.

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文中介绍由IGBT组成的自动励磁系统在发电机励磁调节中的的特性和作用。

This paper introduced the characteristic and function of the regulation of auto-excitation system based on IGBT in excitation system of synchronous generator.

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本文论述了直流互感器在大功率晶闸管励磁系统中线路结构形式以及在激磁电流自动调节控制系统中所起的作用。

The paper presents the circuit structure type of the D. C. inductor in high power thyristor exciting system and the role of the D. C. inductor in the exciting current self-regulation control system.

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