main armature
2.With the development of electromagnetic launch (EML) technology in recent years, the study on projectiles launding from EM rail guns is getting much concern. The main forms and function of the warhead, armature, and sabot which are the key components of EM package are analysized emphatically in this paper.
3.According to recording data of higher level monitor and control system when main motor drive system for four-high medium plate mill is operated, and relation between armature voltage of DC electromotor and AC input voltage of inverter, trip cause of DC fast automatic switch was analyzed in detail, and specific countermeasure and measures are given.
