MINE FURNACE LOW-VOLTAGE REACTIVE POWER COMPENSATION AND WAVE-FILTERING APPARATUS

摘要

A mine furnace low-voltage reactive power compensation and wave-filtering apparatus comprising a compensation filter branch. The compensation filter branch comprises a three-phase switch (1), a three-phase step-up transformer (2), and a contactor (4 and 5). The primary windings of each phase of the three-phase step-up transformer are interconnected to each other, and secondary windings of each phase are interconnected to each other. The primary windings of the three-phase step-up transformer are connected to the three-phase switch. The secondary winding of each phase of the three-phase step-up transformer is connected to a filter capacitor (3) via the contactors. The mine furnace low-voltage reactive power compensation and wave-filtering apparatus improves the power factor and compensation effect of mine furnace transformers, and facilitates promotion.