Series-parallel hybrid passive-power filtering and protecting device

The utility model provides a series-parallel hybrid passive-power filtering and protecting device which is not easy to be subjected to resonance together with the system, can effectively reduce the total current of the system and has an obvious energy saving effect. The series-parallel hybrid passive-power filtering and protecting device comprises a first reactor (L1), a first capacitor (C1), a transformer (T1), a first single-phase controllable silicon (Q1), a second single-phase controllable silicon (Q2), a first varistor (Y1), a second varistor (Y2), a current limiting reactor (L0), a lightning arrester (B1), a second reactor (L2), a second capacitor (C2), a third reactor (L3), a third capacitor (C3) and a vacuum contactor (K). The series-parallel hybrid passive-power filtering and protecting device adopts the hybrid series-parallel connection of the reactors, the capacitors and the traditional filtering subcircuits, thus the capacity need of the serial subcircuits is reduced greatly, the filtering perform