The KDHG-518B CT volt ampere characteristic tester is a new generation of innovative CT and PT testing instrument developed after in-depth theoretical research on the traditional transformer volt ampere characteristic transformation ratio polarity comprehensive tester based on voltage regulators, voltage boosters, and current boosters. The device adopts high-performance DSP and FPGA, and new manufacturing processes to ensure stable and reliable product performance, complete functions, high automation level, and high testing efficiency. It is a professional testing instrument used for transformers in the power industry.

★ Fully functional, it not only meets the testing requirements for excitation characteristics (i.e. volt ampere characteristics), transformation ratio, polarity, secondary winding resistance, secondary load, ratio difference, and angle difference of various CTs (such as protection, metering, TP), but also can be used for testing excitation characteristics, transformation ratio, polarity, secondary winding resistance, ratio difference, and angle difference of various PT electromagnetic units.
★ Automatically provide CT and PT parameters such as inflection point voltage/current, 10% (5%) error curve, accuracy limit factor (ALF), instrument safety factor (FS), quadratic time constant (Ts), remanence coefficient (Kr), saturated and unsaturated inductance.
★ The test meets various transformer standards such as GB1208 (IEC60044-1), GB16847 (IEC60044-6), GB1207, etc., and automatically selects which standard to test according to the type and level of transformer.
★ The interface is friendly and beautiful, with a Chinese graphical interface.
The device can store 2000 sets of test data without loss in case of power failure. After the experiment is completed, use a USB flash drive to store the data on the PC, analyze it using software, and generate a WORD report.
★ The testing is simple and convenient, with one click completion of CT direct resistance, excitation, transformation ratio, and polarity testing. In addition to load testing, all other CT tests use the same wiring method.

Transformer testing type: protective CT/PT; Measurement grade CT/PT; Transient level CT/PT
Measurement output: 0-180Vrms, 12Arms, 36A (peak)
Voltage measurement accuracy: ± 0.02%
CT ratio measurement range: 1-30000 Accuracy: ± 0.02%
PT ratio measurement range: 1-10000 Accuracy: ± 0.02%
Phase measurement accuracy: ± 5 minutes Resolution: 0.5 minutes
Secondary winding electricity