Split Core Current Transformers have a magnetic circuit which is splitted two parts and its max. operating votage is 0.72 kV with non-insulated busbars. However they can be used with fully insulated cables on all voltage level. These transformers can be assembled to the system without
any power interruption and without the need of demounting any conductor. These transformers are used for measuring and protection. Moreover; they are used for special applications such as measurement of leakage current with precision cores which have high magnetic permeability.