In order to more correctly reflect the influence of equipment upon the system

a concept of synthetic weighting has been put forward.The synthetic weighting is calculated and obtained on the basis of inherent structure of the power generation equipement in the system and its basic functions as well as the practical indices of the said equipments.The said method embodies both the static importance of equipment in the inherent structure of system and also the dynamic effect of the practical condition of each equipment upon the function of system

thus

it can reflect the equipment's practical importance in the system

and has important significance to evaluate the running risk and to carry out the condition based repair.Through a case of synthetic weighting for a feed water pump

the effectiveness of said method has been validated.