Presently, quite a few local networks for data
transmission have been established in the power utilities
allover the state . Thus, the survival environment of all
kinds of data and information has been improved greatly,
as is helpful to enhance the management of power
system to a higher level. However, new demands are
brought forward for the management information
system. All the information reflecting the technique
condition, including real-time on-line data and those of
the off-line tests, must be sent to the database of the
MIS and plotted or comprehensively analyzed. Only
after satisfying this premise can maintenance decision
be made quickly and feasibly.