| 摘要 |
PROBLEM TO BE SOLVED: To detect the conditions of power system whether it is in the increasing condition or decreasing condition without increasing the load of an operator. SOLUTION: In a power system supervisory control unit comprising a means 111 for fetching and storing the conditions of the power system and means 113, 114 for outputting the conditions of the power system to a man-machine interface unit, a means 115 for judging the increasing and decreasing conditions of the past and current power system to output the condition of power system and changing trend information to the man-machine interface unit. |
