KD-45VA1+ is an advanced variable frequency CT/PT analyzer featuring simple digital parameter setup and fully automated testing. Based on low-frequency method principles, it handles knee-point voltages above 40KV while outputting only 180V. The unit automatically calculates拐点 values, 10%/5% error curves, ALF, FS, Ts, Kr, and inductance parameters. With Bluetooth connectivity (optional), 2000-record storage, and USB export, it delivers professional transformer analysis in an lightweight 8.2kg package.

1. Comprehensive testing for protection CTs (including TP class), metering CTs, and protection PT electromagnetic units;
2. Automatically calculates inflection point voltage/current, 10%/5% error curves, ALF, FS, Ts, Kr, and inductance parameters;
3. Compliant with GB1208 (IEC60044-1), GB16847 (IEC60044-6), GB1207 standards with automatic standard selection;
4. Based on low-frequency test principle: handles CTs with knee-point above 40KV while outputting only 180V;
5. Simple one-key testing: completes CT DC resistance, excitation, ratio, and polarity tests with same wiring (except load test);
6. User-friendly interface with full Chinese graphical display and built-in printer for on-site curve printing;
7. Large storage capacity: 2000 test sets with non-volatile memory;
8. Bluetooth connectivity for external device connection (optional);
9. USB data export for PC analysis and Word report generation;
10. Automatic inflection point calculation with test data filtering, printing and date/time function;
11. Integrated portable design weighing only 8.2kg for easy field testing.

		DK-45VA1+
Test purpose		CT， PT
output		0~180Vrms，12Arms，36A（peak value）
Voltage measurement accuracy		±0.1%
CT ratio measurement	Range	1~40000
	accuracy	±0.05%
PT ratio measurement	Range	1~40000
	accuracy	±0.05%
phase measurement	accuracy	±2min
	resolving power	0.5min
Measurement of secondary winding resistance	Range	0~300Ω
	accuracy	0.2%±2mΩ
Communication load measurement	Range	0~1000VA
	accuracy	0.2%±0.02VA
Input power supply voltage		AC220V±10%，50Hz
work environment		temperature：-10οC~50οC，  humidity：≤90%
Size and weight		Size 365 mm×290 mm×153mm     Weight<10kg