FIELD: electricity.
SUBSTANCE: monitoring and control system of operating mode of power transformer installed at one substation includes data management and processing station connected to transformers containing indicative signal recording devices presenting measurement results of operating characteristics of transformer; these signals are constantly recorded by means of the above devices; user interface connected to the above control station. Interface provides the user with possibility of displaying measurement results of operating characteristics of transformer and determining the ranges of required values of the above operating characteristics. Control station includes database in which the data is stored and refers to indicative signals presenting measurement results of operating characteristics of transformer only when measurement results of operating characteristics differ from the range of values of characteristics earlier determined as desired ones. Monitoring and control method involves the stages at which: (a) operating characteristics of power transformer are constantly measured; and (b) data referring to measurement results made at stage (a) is stored only when the above measurement results are not within the range of the values earlier determined as desired ones for measurement results of the above operating characteristics.
EFFECT: eliminating false alarm signals which can lead to failures of the system, malfunction or depression of operation of transformer, improving and simplifying the monitoring and control process of operating modes of transformer.
11 cl, 14 dwg
