LZJC-10 current transformer, epoxy resin casting insulation and fully enclosed support construction, encloses primary & secondary windings and annular core in the epoxy resin casting body. The product has groove to strengthen the external insulation. It can be installed omni-directional due to light weight and withstand nastiness and dampness. It is widely used for measuring current, electric energy and relay protection in the electrical system with the rated frequency 50Hz or 60Hz and rated voltage 10 kV or 11kV.