Use Arteche Load Reactors (Type SRT) rated 5% impedance to protect motors from excess peak voltage due to reflected voltage waves and high dv/dt when the cable lengths are short to medium in length (typically 500 feet/ 152 meters).
LOAD REACTORS (TYPE SRT AND TYPE HRT) 200-690 VOLTS, 50/60HZ
APPLICATION: Although motor operation from a sine wave is always preferred, some motor drive applications can achieve satisfactory performance and life expectancy by simply adding a load reactor between the drive and motor. The load reactor tames the voltage waveform to the extent that motor cable lengths of up to about 500 feet (152 meters) are possible in 480 volt applications. Acceptable motor lead lengths may vary based upon voltage, PWM switching frequency and impedance.a.