4M.A Redfern,R.K.AggarwaI.A Personal Computer Based system for the Labratory Evaluation of High Performance Power System Protection Relays[J]. IEEE Trans.on PD,vol.6, No.4,October 1991 : 1402-1408.
5Redfern M A,Aggarwal P K.A Personal Computer-based System for the Labratory Evaluation of High Performance Power System Protection Relays[J].IEEE Trans.on PD,1991,6(4):1 402-1 408.