Around increasing system reliability, the electrical circuit and function of variable frequency speed-governing system is discussed in this paper.
围绕着提高系统可靠性，讨论了变频调速系统的电气接线及功能。
The technology of variable frequency speed governing was used in the driving system of the experiment stand. And the advanced stepping digital overflow valve was adopted in the part of loading.
该试验台的驱动系统采用交流变频调速技术，加载部分采用先进的步进式数字溢流阀进行加载。
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