Lzzbj9-10 current transformer is composed of epoxy resin, and its iron core is made of high quality magnetizing material. The primary and secondary windings and iron core are cast in epoxy resin, the surface of the product is not sprayed, with excellent insulation and moisture resistance, and easy to clean the surface. The primary outlet end is at the top of the pouring body, the outlet end is marked P1 and P2, and the first secondary winding is marked 1S1 and 1S2 for the measurement level.The second secondary outbound terminal is the protection level, and the outbound terminal is 2S1 and 2S2. The transformer is connected with reduced polarity. There are grounding bolts and four mounting holes on the base.