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杏花煤矿3135综采工作面,由于大功率三相交流电动机的使用,设备起动时的大电流,经常造成继电保护误动作、电气设备温度高绝缘老化等问题,严重影响了供电质量。因此,在供电系统设计时我们采用变频技术、提高电压等级、采用移动变电列的方法来解决这些问题,在实际使用中达到了理想的效果,保证了供电的安全性、可靠性,满足了企业全安生产的要求。
Xinghua Coal Mine 3135 fully mechanized mining face, due to the use of high-power three-phase AC motor, starting the equipment when the high current, often resulting in malfunction of relay protection, high temperature insulation of electrical equipment and other issues, seriously affecting the quality of power supply. Therefore, in the design of power supply system, we use frequency conversion technology to improve the voltage level, the use of mobile substation method to solve these problems, in actual use to achieve the desired effect, to ensure the safety of power supply, to meet the reliability All-security production requirements.