The main program and the subprograms consisting of their flow process diagrams are expounded. And the subprograms include 3-section current protection program, inverse time lag program, LCD display program, FFT program, communication program etc.
在软件方面，给出了主程序及各个子程序的流程图，包括子程序中的三段电流保护、反时限、液晶显示、FFT、通信等程序。
参考来源 - 基于DSP智能脱扣器的设计·2,447,543篇论文数据，部分数据来源于NoteExpress
Overload protection:Start at 1.2times of rated current, adopt inverse time lag characteristic action;
过载保护：在1.2倍额定电流时启动，采用反时限特性动作；
The analysis of this paper shows that margin of stability of synchronous motor is of inverse time -lag.
本文分析表明，同步电动机的稳定界限是反时限特性。
Thus, low voltage protection devices, served as lock-out protection reserve will also have characters uf inverse time-lag.
因此，作为失步保护后备的低电压保护也应具有反时限特性。
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