... draft fan, high-temperature fan, air blower, dust collection fan, grinding machine etc.Metallurgy: blast furnace blower, slurry pump, feed water pump, ... Co., Ltd is the only factory in domestic to produce motor protection relays, Medium voltage VFD, Static var compensator and ... power factor compensation.WLD-HVF output few harmonics, the motor does not generate extra heat and noise.Modularized design of ...