The rapid development of technology on modern computer control system caused super automatization on microcomputer relay protection system and higher precision on sampling and measurement. The program of electric interlocking protection for electric generator and turbine was simplified, the distinction of the self-protective function was refined, and the correct operation rate of the relay protection system was notably improved. Based on microcomputer relay protection system,the protective configuration and the output action for 50 MW electric generator were took as example, the significance of generator and turbine configuration interlocking protection were analyzed according to design criterion and standards of electric specialty. Based on the analysis of the generator and turbine protective operation, an proposal of summarizing the protective configuration and standardizing the interlocking protective operation were put forward.