QJZ_2-3001140S型起动器控制回路的线路改进

Improvement on QJZ_2-300/1140S starter control circuit

通过对QJZ2 — 30 0 114 0S本安型双保护真空磁力起动器控制回路进行改进 ,使它作为采煤工作面总控制开关 。

Based on the improvement on QJZ_2-300/1140S starter control circuit,use it as whole control switch of coal mining face so as to ensure the safe operation of the electrical equipment in coal mine.