The Quick Survey Technology for the Three-no Equipment

The equipment which has not been operated, maintain, and switched beyond a specified interval is called three-no equipment. As the three-no equipment will cause some danger power network operation, a quick survey technology is proposed in this paper. The technique simulates artificial retrieval in the third subarea of the secondary security protection system. The technique works in a self-adaptive, divided-period, no-repeat way. Meanwhile, new equipment doesn't need to access and original network settings don't need to change. After the last action time of equipment is obtained by the computer in a short time, the difference between the last active time of equipment and the current time is used to take advice for check operation. An artificial equipment survey can be taken by computer automatically. The results of the actual case also show that the proposed technique is effective.