Traditional　active　arc-suppression　devices　(AASDs)　are　capable　of　single-phase-to-ground　(SPG)　fault　suppression　in　distribution　networks,　but　their　practical　engineering　application　value　is　limited　due　to　difficulties　in　the　DC　power　supply　(DCPS)　and　harsh　installation　conditions.　This　brief　proposes　a　novel　two-phase　T-type　cascaded　H-bridge　topology　AASD　(T-AASD)　without　a　DCPS　and　their　cooperation　control　principle.　The　proposed　method　maintains　the　stability　of　the　DC　voltage　and　suppresses　the　base　component　and　high-frequency　harmonics　component　in　the　fault　current　during　arc-suppression.　Compared　with　other　AASDs,　the　proposed　T-AASD　has　the　advantages　of　a　low　voltage　requirement　and　fewer　components.　The　effectiveness　of　the　proposed　method　is　validated　via　simulations.　©　2004-2012　IEEE.