Study on Variation Characteristics of Current in Lines and Winding of Electromotor with the Breaker Turning- on or Turning-off

摘要

Starting with the electromagnetic waves equation of even transmission lines, the current accurate solution of non-homogeneity electromagnetic waves equation is given. Based on this formula, the variation characteristics of current in lines and winding of electromotor with the breaker turning-on or turning-off are studied. The methods of limiting over-current and over-voltage are put forward, and so for the start current calculation formula for electromotor, which can be referred in correlated field such as engineering design and manufactories, etc.