Combined type high-voltage-stabilization-precision non-contact voltage stabilizer main circuit and non-contact voltage stabilizer

The invention discloses a combined type high-voltage-stabilization-precision non-contact voltage stabilizer main circuit. The main circuit comprises a compensation transformer, a first autotransformer, a second autotransformer and a reversing circuit; two first leading-out terminals and m first taps of the first autotransformer are connected with a first parallel wire through first contactor switches in parallel; two second leading-out terminals and n second taps of the second autotransformer are connected with a second parallel wire through second contactor switches K18-K23 in parallel; a third contactor switch is arranged between every two adjacent connecting points on the parallel wire; the two ends of the first parallel wire are connected with the two ends of the second parallel wire respectively; and the second autotransformer is connected with the compensation transformer through the reversing circuit. The invention further discloses a non-contact voltage stabilizer. The non-contact voltage stabilizer c