| This topic obtains from the degaussing side at first, carried on the analysis from the principle through the linear resistance, the nonlinear resistors and some other ways , compareing with their application feasibilities, we conclude that the nonlinear resistance of magnetism extinguishing and the extinguishing of arc grid magnetism are two ideal ways of magnetism extinguishing . while for the concideration of blocking the flow , magnetism extinguishing DM2 switchs which are used with the extinguishing of arc grid exsist inevitable shortcoming . Therefore, from consideration of two sides, the way of using the DMX magnetism extinguishing switchs and the non-ohmic resistor coordinated magnetism extinguishing will become an improvement general orientation in the field of magnetism extinguishing. Finally, take a Mount Taishan 310MW unit for example, to improve the system of magnetism extinguishing , and summarize the methods which coordinately used with non-ohmic resistor parameter, and these methods can offer important references to the skillful people who need these methods to improve the magnetism extinguishing devices to engines in the future. |
