SYSTEM FOR MONITORING, PROTECTION AND CONTROL OF ELECTRIC SUBSTATION EQUIPMENT Russian patent published in 2020 - IPC H02J13/00 

FIELD: electric power engineering.

SUBSTANCE: invention relates to electric power industry and can be used for monitoring, protection and control of electric substation equipment. System for monitoring, protection and control of electrical substation equipment, including sensors of technical parameters of electrical substation equipment, connected to electric converter includes primary converters of current and voltage of phase A, primary converters of current and voltage of phase B, primary converters of current and voltage of phase C, sensors of technical condition of primary converters of current and voltage, a unit for filtering and normalizing signals, a unit for analogue-to-digital conversion of signals, a unit for processing digital signals, a unit for executing algorithms for diagnosing primary converters, a unit for executing algorithms for commercial metering of electric power, electric energy quality indicators determination algorithms, relay protection and automation algorithms execution unit, data frames generation unit with instantaneous current and voltage values, unit for generating data packets with diagnostic information, unit for generating data packets with current, voltage, active, reactive and full powers and energies values, unit for generating data packets with electric power quality indicators, digital signal to discrete conversion unit, output relay unit, data frames generation unit with control signals from relay protection and automation functions, unit for recording instantaneous values of current and voltage in a data file under the action of relay protection, unit for generating records in the diagnostic log, unit for generating records in the commercial metering register, unit for generating records in the log of power quality indicators, unit for generating entries in the relay protection and automation journal, digital information input-output interface unit, a discrete signal input / output interface unit, a request setting and processing unit, switch, adjacent intelligent electronic devices, automated process control system.

EFFECT: higher reliability of monitoring system, protection and control of electric substation equipment.

1 cl, 1 dwg