Line losses from the V1k are not published because they vary greatly due to the system dynamics and such settings as drive carrier frequency. From independent testing done by a major drive manufacturer, the V1k was found to be 98% efficient in operation. From a line voltage drop consideration, the impedance of the filter is 1.5% at rated load. For example, a 21 amp V1k will have a line voltage drop of approximately 1.5% when applied to a 480 volt line at 21 amps. Because impedance is proportionate to the load, the line voltage drop will decrease as the percent of load decreases.