为了提高起重电磁铁的吸重能力并降低其温升,本文介绍一种带强激磁环节的起重电磁铁控制线路。如所周知,起重电磁铁是一种具有大电感的电气元件,其时间常数很大,使得工作磁通的建立较为缓慢;又因为空气隙的磁阻很大,特别是当吸取如生铁或废钢等形状不十分规则的物料时,由于气隙磁阻的影响,使其吸重能力大大下降。因此为了缩短激磁过程,提高吸 In order to improve the lifting capacity of the lifting electromagnet and reduce its temperature rise, this paper introduces a lifting electromagnet control circuit with strong excitation. As we all know, lifting electromagnet is a kind of electrical components with large inductance, the time constant is large, making the establishment of the working flux is relatively slow; and because of the great magnetic resistance of the air gap, especially when drawing such as pig iron or Scrap and other shapes are not very regular material, due to the impact of air gap reluctance, so that its ability to significantly reduce suction. Therefore, in order to shorten the excitation process, improve suction