This type of combination transformer is outdoor epoxy resin casting, fully enclosed, pillar structure. Due to the use of outdoor epoxy casting. Products with arc resistance, uv resistance, aging resistance, long life, maintenance - free and other characteristics. This product is composed of three single-phase ground voltage transformers with "Y" type wiring. The three current transformers are connected in series to phase A and B. C respectively, and the secondary winding of the current transformer with taps can obtain different current ratios.

The secondary outlet is drawn through a metal hose. The connection is convenient, safe and reliable, and can realize the measures of preventing power theft. The base channel steel has four mounting holes for mounting.