这是一个解算煤矿井下低压电网的程序,用来对运行中的(或设定的)电网进行过流保护的校核整定。输入方法直观方便,且能灵活地适应各种变通情况。计算方法严格,程序结构严谨,发挥了机器计算的优势,可得出比手算更精确的结果。如在部订的《矿井低压电网短路保护装置的整定细则》中,采用额定电压下的起动电流与若干个额定电流的算术和来整定开关,就与实际的起动电流可能有很大出入。机器计算输出的格式多样,可只集中打印主要的计算结果, This is a procedure for solving the low-voltage grid in a coal mine and is used to check the overcurrent protection of the running (or set) grid. Intuitive and convenient input method, and flexibility to adapt to a variety of situations. The calculation method is strict, the program structure is rigorous, the advantage of machine calculation has been exerted, and the result more accurate than the hand can be obtained. For example, in the “Detailed Rules for Setting up Short-circuit Protection Devices for Low-voltage Network of Mine Shaft”, using the arithmetic and setting switches of the starting current and the rated current under the rated voltage may differ greatly from the actual starting current. The format of the machine calculation output is varied, only the main calculation result can be printed centrally,