Alternating-current remote supply remote end 220V alternating-current voltage-stabilized power supply circuit

The utility model discloses an alternating-current remote supply far-end 220V alternating-current voltage-stabilized power supply circuit in the technical field of voltage-stabilized circuits, which comprises a transformer T1, an input voltmeter B1, an electric self-coupling voltage regulator, a servo motor control circuit board, a yellow indicator light, a green indicator light, a red indicator light, a delay relay Q1, an RS485 communication module and a single-phase liquid crystal multifunctional voltmeter. When the power transmission voltage is reduced due to line loss and the power transmission voltage is reduced or the load is increased, the servo motor control circuit board drives the servo motor connected with the electric self-coupling voltage regulator according to the change of the output voltage, and the position of a carbon brush on the electric self-coupling voltage regulator is adjusted, so that the output voltage is adjusted to a rated value; the output voltage is stable and reliable, the effic