连续性生产企业低压电动机控制回路采用直流供电的可行性探讨  

Feasibility Study on DC Power Supply for Control Loop of Low Voltage Motor in Continuous Production Enterprises

作　　者：曹晋 CAO Jin(CTL Company,Shenhua Ningxia Coal Industry Group Co.,Ltd.,Yinchuan 750001,China)

机构地区：[1]神华宁夏煤业集团煤制油分公司,宁夏银川750409

出　　处：《电工技术》2019年第1期128-130,共3页Electric Engineering

摘　　要：为解决石油、石化等连续性生产企业低压电动机控制回路在"晃电"过程中发生低压脱扣问题,提出控制回路采用直流供电的方案。针对不同短路、接地故障情况下的扰动,分析低压电动机控制回路采用直流供电的可行性,为石油、石化等连续性生产企业低压电动机控制回路抗"晃电"的解决方案提出新的方向。In order to solve the problem of low voltage tripping in the control loop of low voltage motor in continuous production enterprises of petroleum and petrochemical industry during the voltage dip,a scheme of adopting DC power supply for the control loop is put forward.The feasibility study provides a new direction for the voltage dip solution of low voltage motor control loop in continuous production enterprises of petroleum and petrochemical industry.

关 键 词：电动机 控制回路 直流 晃电 

分 类 号：TM306[电气工程—电机]