The KDHG200C capacitive voltage transformer analyzer is a new generation of innovative PT tester developed on the basis of traditional transformer calibration devices based on regulators, boosters, and series resonance, after listening to user opinions, conducting extensive market research, and conducting in-depth theoretical research. The device adopts high-performance DSP+FPGA and ARM industrial control computer, with good manufacturing technology, ensuring stable and reliable product performance, complete functions, high degree of automation, high testing efficiency, and is at a high level in China. It is a professional testing instrument for transformers in the power industry.

1. A single instrument can achieve error testing for capacitive PT (CVT) and electromagnetic PT without the need for resonant boosting devices, standard voltage transformers, load boxes, calibration instruments, and other equipment, greatly reducing the workload of on-site calibration errors.
2. Wide testing range, capable of testing electromagnetic voltage transformers with voltage levels ranging from 6kV to 800kV.
3. Internally, a 0.01 level standard voltage transformer is used, and the low voltage error of the transformer is tested using differential measurement method; Using frequency conversion testing technology to obtain the excitation characteristic curve of the working range, combined with the error values measured at low voltage, the error of the entire working range of the transformer is analyzed using extrapolation method. The testing level of the instrument can reach 0.05 level. During the testing process, the small value generates a testing voltage not exceeding 3kV to ensure the safety of on-site testing.
4. The testing wiring is simple and the operation is easy to learn. Simply follow the guidance prompts to easily complete the transformer calibration work, greatly improving the testing efficiency.
5. It has intelligent judgment of external wiring status, indicating wiring errors, transformation ratios, polarity errors, etc.
6. Automatically organize the test data and determine whether it is out of tolerance. Out of tolerance data is displayed in reverse color, providing a clear and intuitive understanding of the data characteristics of the transformer.
7. The large-scale storage can store up to 10000 pieces of on-site test data.
8. Adopting aluminum profile chassis, it has good anti-interference ability and ensures the safety of operators and equipment during on-site high-voltage testing.
9. Adopting high-resolution and large-sized 8-inch true color LCD display, it can display clearly under strong outdoor light, with touch screen auxiliary operation, simple and fast.

Test purpose		CVT、PT误差校验
output	Low voltage output	0~120V 5Arms，12A（峰值） 600VA
	High voltage output	0~3000V
PT ratio measurement	accuracy	1~350 <0.03% 350~1100 <0.05% >1100 <0.07%
phase measurement	accuracy	±2min
	resolving power	0.1min
Measurement of secondary winding resistance	Range	0~500Ω
	accuracy	0.5%±2mΩ
Communication load measurement	Range	0~1000VA
	accuracy	0.5%±0.05VA
Input power supply voltage		AC220V±10%，50Hz
work environment		temperature：-10οC~50οC， humidity：≤90%
Size and weight		Size  365mm×290 mm×153mm Weight approximately：18kg