On-line Verification Principle Based on Inverse Process of Protection Setting
In view of the current inadequate method of protection range verification,and from a comparative analysis of the differences and relations between protection setting and verification,it is concluded that verification is the inverse process of protection setting.On this basis and taking into consideration the idea of protection setting calculation,an on-line verification method based on the inverse process of protection setting is presented and the universal formulae and principles of on-line verification on distance protection are given.Furthermore,some specific problems are given corresponding treatment.The style of the method presented is consistent with the protection setting calculation,making it easy for users to quickly divert from setting calculation to verification calculation.The correctness and feasibility of this method is verified by practical examples.