This Automatic Transformer Test Equipment can finish accuracy test / error calibrating automatically for transformer . It based on principle of newest virtual Instruments design, users just need operate the virtual interface by using the mouse and keyboard, input the transformer type, measurement range, precision class, capacity, power factor, can finish the transformer test, analyze, calculate and manage the test results, and print all kinds of records and certificates according users requirements. This is the ideal equipment for transformer manufacturer and meteringt test center .