The common types of regulator adjustments are as follows:
1, three-phase balance adjustment. The three-phase regulator is connected to the star connection, coaxial control, and the three-phase voltage is adjusted to balance the torque motor. The torque motor can operate in a balanced state. The adjustment range is wide and the effect is good, but a three-phase voltage regulator is needed. Not very economical.
2. Two-phase voltage regulation. Two single-phase voltage regulators are used for U-shaped connection, and coaxial adjustment. For example, when two phases of A and C are adjusted, the sliding brushes a and c of the voltage regulator slide symmetrically at the same time, and balance adjustment can also be realized. However, when using this method, it must be noted that the terminal voltage of the U-connected single-phase voltage regulator is the power line voltage, and the rated voltage of the single-phase voltage regulator used should be adapted to the power line voltage requirements. The rated voltage of the single-phase voltage regulator produced is mostly 220V, so it cannot be used in the ordinary three-phase 380V power supply system, but only in the system where the power supply voltage is three-phase 220V.
3. Single phase adjustment. Single-phase regulation uses only one single-phase regulator to regulate one phase voltage.