It is concluded through analysis that some design problems exist in the electrohydraulic governingsystem, especially the electrical overspeed protection which needs to be further improved.
通过分析，认为国产液压调节机组中的超速保护存在着不足之处，尤其是电气超速保护应该加以改进。
2
Around increasing system reliability, the electrical circuit and function of variable frequency speed-governingsystem is discussed in this paper.