By comparison with busbar type current transformer (CT), the structure of toroidal current transformer is simple. Usually, there is a through-hole of no less than 8mm diameter, which allows the primary wire or copper busbar come through. The through-hole may
Busbar type Current Transformer Structure
The mini current transformer which consists of a busbar and a coil is easy to assemble in an electricity meter or other devices. We can make such kind of component by integrated the ring shape current transformer with a U