... 12, 12 KV, Zero sequence CT, Current transformer 1.micro current transformer 2.small size 3.high accuracy class ZW32 ... -12, 12 KV, Zero sequence CT, Current transformer Key Features:Compact and delicate appearance;Suitable for single ... well as anti-tampering electricity meter;Linear output current ,high precision;Standard holes on the primary ... with epoxy resin to ensure strong insulation ablilty.