FIELD: electro-mechanics, namely, usage of information processing means in electro-mechanics, possible use for functional control of radial three-phased one-sided power lines.
SUBSTANCE: suggested method includes analog-digital transformation of current and voltage signals in three phases at the beginning of the line from outputs of current and voltage transformers, then digitized signals of phase currents and voltages are memorized by means of circular memory, at the same time on basis of given signals and signals, measured in a previous time moment, during one period of input voltage/current, phase values of phase shift between current and voltage are determined for each phase. Then calculated values of phase shift between currents and voltages are compared to values of phase shifts for normal mode, received for previous time moments and recorded in memory block of normal mode phases on basis of results of operation of comparison block.
EFFECT: creation of quick and simple method for functional control of radial three-phased one-sided power lines in working mode.
1 dwg, 1 tbl
