... Unit It is the core circuits of APF, used for power conversion. Modularized design, all power units ... switching frequency Response time <10msSingle capacity up to 300ASuppress three-phase unbalanceConform to IEEE Std. 519-1992, GB/T 14549Can ... ) directlyParallel connection, easy for filtering capacity expansionModularized design, easy for maintenancePerfect protection functionsFaults record and history ...