MV1000 medium-voltage ac drives combine compact modular design, high efficiency and a good MTBF rate. Smart Harmonics technology reduces input total harmonic distortion to less than 2.5% without filters, which exceeds the requirements of IEEE519-1992. It also provides galvanic isolation between power input and output, and uses two 5-V step bridges per phase to generate a 17-level, line-to-line voltage output delivered to the motor.