The invention discloses an automatic rural network low-
voltage in situ reactive compensation adjustment method. Capacity increasing is conducted on a
transformer, the
transformer is additionally arranged, low-
voltage network distribution is conducted, a
voltage regulating network is installed, a variable-phase
transformer is installed, a distribution transform low-voltage-side automatic switching reactive compensation device and a low-voltage line reactive compensation device are additionally arranged, a in-situ compensator device is installed for a large-
power user, and a
voltage boosting device is additionally arranged at the
branch line
tail end. The
voltage boosting device comprises a three-phase unbalanced adjustment reactive compensation controller, a star connection
capacitor and an angle connection
capacitor. The output efficiency of the transformer is improved and the
power factor of the transformer is increased through connecting the star connection
capacitor and the angle connection capacitor into phases and being in combination with the three-phase unbalanced adjustment reactive compensation controller. The method starts from solving three-phase unbalance and reactive compensation, the
branch line voltage change is tracked automatically, the reactive
power compensation and the active power are controlled to transfer automatically among the phases to achieve balance, the transformer output efficiency is improved, the transformer
power factor is increased, reasonable adjustment of the
branch line voltage is achieved, the
line loss is reduced, and the
branch line voltage is effectively boosted.