The CTTx2 & CTTx5 are rugged and easy to use current transformer testers, that offer Automatic and Manual testing modes. These instruments are designed to deliver fast and reliable measurements. Various parameters of the CT like CT Saturation/Excitation, Knee Point (as per ANSI 10/50IEC 60044, IEEE 30, IEEE 45), Ratio, Polarity, Phase Angle and Burden are tested in a short time.