Current Transformers:Types,Application and FAQ


Types of Current Transformers


There are three main types of current transformers



Solid-Core Current Transformers


These have a single secondary winding forming a solid ring or toroid that passes over the primary conductor before being terminated.



Split Type Current Transformer


These have a single secondary winding designed to be split apart and placed around the already-terminated primary conductor. Clamp-on current meters are a type of split-core current transformers; they are opened and encircled around the conductor to gauge the current flow in amperes.



Bar-Type Current Transformers


The secondary winding is already wound around a bar. The primary conductor is fastened to the bar's ends with bolts, and the current then flows through the bar.