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What is the typical dV/dT Filter Reactor performance?

A dV/dT filter reactor combine appropriate values of inductance, capacitance and resistance to form a filter, which reduces dV/dT and peak voltages from the PWM (Pulse Width Modulated) voltage waveform. This will reduce motor heating harmonics and audible noise to significantly increase the life of the motor.

Long lead lengths between the VSD and motor can experience motor terminal peak voltage spikes two or four times the DC bus voltage. Therefore motor terminal voltage peaks of 1300-2700 volts for 480V drives and 1700-3400 volts for 600V drives are not uncommon.

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