CURRENT AND VOLTAGE REMOTE CONTROL SYSTEM Russian patent published in 2015 - IPC H02J13/00 

FIELD: electricity.

SUBSTANCE: system comprises programmable control terminal (18) coupled to data transmission data (17) to a group of independent current and voltage recorders. Each recorder comprises current sensor (1), voltage sensor (2) and primary processing module (3). Sensors (1) are made as resistor shunts installed into breakage of phase wires in high-voltage network. Sensors (2) are made as voltage dividers. Low-resistance arms (12) of dividers are coupled to the respective resistor shunt while high-resistance arms (13) are built into a hollow insulator (14) and grounded. In the screened frame (4) of the module (3) galvanic coupled to the tested point of the network there is power supply source (5), the first AD converter (6), the second AD converter (7) and control unit (8) equipped with wireless transceiver (9). AD converters (6) and (7) are coupled by their analogue inputs to sensors (1) and (2) through interfacing elements (10) and (11) respectively and connected to the unit (8) by their starting inputs and digital outputs. The unit (8) is designed to start up simultaneously AD converters (6) and (7) by to mark current and voltage values with precise time tags, to store data received and to transfer them through wireless transceiver (9). Control terminal (18) is designed to receive and to coprocess data received from recorders. The system is capable to change operating mode of recorders by commands of control terminal (18).

EFFECT: increased accuracy of measurement of phase angles between current and voltage vectors at the test point of high-voltage network and expanded functionality.

3 cl, 2 dwg