current transformer Primary current: 30A-3000A NSQ Secondary current: 5A, 1A Standard approval: BS7626, IEC44-1 Current transformer 1.Accuracy class:1,0.5,0.5s,0.2 ... /EN60044-1 3.Degree of protection:IP 20 4.Secondary current :5ACurrent transformer (CT) is used for measuring electric energy and ... at larger secondary impedance and act as the zero-sequence current transformer NSQ current transformer