Current transformer is a type of instrument, used to measure or sense large alternating currents by scaling it to a smaller, safer and measurable value. It transforms the primary current to a proportional secondary value in terms of magnitude and phase. Meisongbei Current transformers are available in various sizes and shapes and are used as an interface between high currents and measuring / sensing devices. They are also known as CTs.

High Precision Current Measurement, Current transformers for 50Hz/60Hz energy meters require core materials with highest permeability and linearity.