| In the systematic design of automatic control exploding in the dangerous area, people have accumulated various anti-blast methods in practice, essence safe type , press person who ventilate , separate person who produce , person who fit again , fill sand type , fill oil type , water copies of type ,etc. various anti-blast methods.This text regards new technological development of new products of electric apparatus Company of Jiyuan century as the background, require to the explosion- proof of the domestic soft starter in the special workplace at present, at company original products technology and foundation of apparatus, put forward one a comparatively ideal one through produce and concurrently safe type of essence exchange the soft design plan that starts of the motor, separate , produce and concurrently essence safe anti-blast technology with soft to start technology organic to combine, develop , finish to exchange electrical machinery. Examine through national- level monitoring center smoothly, through measure , determine , establish for Henan Province scientific technological achievement and new high-tech product of Henan Province achievement its.This text chapter one recommend colliery anti-blast development overview and motor explosion-proof soft current situations and development trends to start technology of technology in the pit at first. Put forward ore spend soft anti-blast technical requirement of starter , point out problem that subject solves mainly this further.This text chapter two carried on the summary to the ore by the global design of soft starter, prove ore design with soft operation principle , main circuit of starter, and one-chip computer the central control module on the basis of ADμC841, pair will close differential of total mark of ring proportion (PID ) regulator , brilliant floodgate in charge of phase place control trigger , three-phase synchronous signal collector , motor protect various function collect on integrative comprehensive controller software and hardware designing synthetically.Mentality of designing of the anti-blast shell of the soft starter of mining explosion-proof of key analysis of chapter three of this text, in order to standardize through produce rank and install convenience that maintain as prerequisite , (vacuum contactor from soft starter each electric component used in the apparatus, high-power... |