[1] The instrument comes with a built-in lithium battery, allowing transformer ratio testing without an external power supply on site. One charge can test at least 100 transformers.

       [2] The instrument integrates a single-phase and three-phase standard power supply with stable amplitude and constant phase.

       [3] The internal standard power supply has high output power, with a maximum output of 5A, especially suitable for low-voltage transformer testing, as well as turns testing of semi-finished products during CT and PT manufacturing.

       [4] Accurately and quickly test the turns ratio, turns ratio error, and phase difference of current transformers (CT) and voltage transformers (PT).

       [5] Test single-phase or three-phase transformers, suitable for Z-type winding transformers, rectifier transformers, and Scott, inverse Scott, and balance transformers in railway electrical systems.

       [6] High testing accuracy: the instrument uses a 16-bit high-precision AD and high-speed DSP processor, effectively ensuring measurement accuracy and anti-interference capability.

       [7] The instrument uses partial discharge-free voltage regulation output, with fast voltage regulation and measurement speed, completing voltage boosting and testing in just 5 seconds.

       [8] The instrument automatically determines the rated ratio of the current tap: when testing multi-tap transformers, you only need to input the tap changer voltage ratio once to perform the test, without entering the current tap number, greatly improving work efficiency.

       [9] It has internal overcurrent protection and wiring check functions.

       [10] 320×240 large screen, high-brightness LCD display, full Chinese menu and operation prompts for friendly human-machine interaction, and a rotary mouse for easier operation.

       [11] Built-in real-time electronic clock, automatically records the date and time of tests, facilitating the preservation and management of test results.

       [12] Panel-type thermal printer, can quickly print test results on site.

       [13] Data has power-off storage and browsing functions, can store 1000 sets of test results, and can transmit data to a computer via connection.