Small Current Grounding Protection Device Based On Can Bus Technology, And Implementation

The Small Current Neural Grounding System is the primary running mode of the industrialdistribution system. The control and measurement of this system lies in the important situation of the Distribution Automation. This paper analyses various theories on the protection of the Small Current Neural Grounding System. Several advanced technology is used. Then it expatiates on a practical network to measure and control the industrial field of distribution system. First, in this system, advanced 16-bit microprocessor 80C196MC is used to sample signals from industry cense. This makes it impossible to have a higher speed in data processing. Second, a kind of Field Bus-CAN is applying to build whole system into a more reliable, advanced real-time control network. It makes data in network nodes shared. Third, used a self-designed PCCAN card, an industry PC and CAN network are interlinked. Sampled data can be processed quickly in this powerful PC. Next, a friendly user interface is applied in the upper computer and it makes a more convenient management to the whole system available. This accomplished work has high practical value and referential significance in the area of DA and other automations.