Development of integrated intelligent controlling for permanent magnetic operating mechanism

This paper mainly expounded the fundamental principle, hardware configuration and software algorithm of a integrated intelligent controlling for monostable permanent magnetic operating mechanism. The device constituted by microchip system which consists high-powered single chip 80C196, power, Rogowski current sensor, drive and so on. It is adopted the selected method of fundamental wave zero-sequence current's direction to realize the function of small current grounding alarm. It joins drive unit with protect unit successfully, reduces the number of the outer connect line, and further improves the reliability. (5 pages)