electrical energy metering system, transformer station comprising such a system and electrical energy metering process with such a system

摘要

Patent Abstract: "Electrical energy measuring system, transformer station comprising such a system and electrical energy measuring process with such a system". this system (20) is adapted to measure the electrical energy of the current flowing in at least one secondary conductor (42a, 44a, 46a, ..., 42n, 44n, 46n) connected to a primary conductor (34, 36, 38), the primary (34, 36, 38) and secondary (42a, ..., 46n) conductors having the same voltage. said measuring system (20) comprises a primary module (60) comprising a radio transmitter (70) and a voltage measuring device (66) of the primary conductor (34, 36, 38), at least one secondary module (62a). , ..., 62n) comprising a radio receiver (80a, ..., 80n), a current intensity sensor (76a, ..., 76n) in the secondary conductor (42a, ..., 46n) and an organ (126a, ..., 126n) for calculating the electrical energy of said current in the secondary conductor. the primary module (60) comprises first means (104) for compressing the measured voltage value (v1, v2, v3) and emitting means (106) in each secondary module (62a, ..., 62n) of a message (m1) containing the compressed value of the measured voltage. the measuring system (20) comprises means (106, 120a, 120n, 122a, ..., 122n) of time synchronization of each intensity sensor (76a, ..., 76n) with respect to the voltage measuring member ( 66). the calculation body 126a, ... 126n is connected to the radio receiver 80a, ..., 80n and is capable of calculating the electrical energy from the voltage value received from the primary module (60) and the value of the measured intensity.