According to the safety requirements of underground electrical equipment , an excellent intrinsically safe pilot circuit is designed , the fault characteristics and protection principle of asynchronous motor with single speed and double speed used in underground are simultaneously analyzed , the function parameters corresponding to the fault protections for high capacity motors are determined . at the same time , module program design method and compiled monitoring program and function subprograms are emphatically described
2.
In addition , according to the safety requirements of underground electrical equipment , the fault characteristics and protection principle of asynchronous motors with single speed or double speed used in underground are simultaneously analyzed , the function parameters corresponding to the fault protection for high capacity motors are determined . at the same time , module program design method and compiled monitoring program and function subprogram are emphatically described . especially , more attention is paid to the design philosophy , operation principle , hardware block diagram and software flow chart of mcs
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