KDZD3683 integrates eight testing functions: copper/aluminum material analysis, capacity measurement, no-load/load loss, DC resistance, turns ratio, and transformer code rating. It features a built-in rechargeable lithium battery (allowing for 200 tests per charge) and an internal three-phase sinusoidal power supply, eliminating the need for an external generator. It employs an advanced probability distribution model to calculate the copper/aluminum coefficient based on winding ratio, package size, and capacity data, enabling accurate material determination.

1. Integrated winding material analysis system employs non-destructive testing methods, establishing a probability distribution model based on ratio data and physical dimensions to calculate copper and aluminum coefficients for accurate material identification;
2. Built-in rechargeable lithium battery, equipped with a three-phase pure sine wave inverter power supply, featuring soft start/stop and overcurrent protection, enabling capacity measurement without an external power supply;
3. DC resistance testing, output current 0-12A, wide range (0.5mΩ-25kΩ), and supports automatic current selection based on load;
4. Load loss measurement, displaying three-phase voltage/current/power, calculating impedance voltage percentage and temperature-corrected load loss, and identifying core type;
5. No-load loss measurement, with waveform distortion correction and automatic voltage normalization, and displaying core type for oil-immersed/dry-type transformers;
6. Single-phase power supply supports three-phase transformer testing in the absence of a three-phase power supply;
7. Supports external voltage/current transformers, programmable ratios, and extended measurement range;
8. The turns ratio is measured via an auxiliary winding with an accuracy of ±0.2%;
9. A 7.0-inch 800×480 industrial-grade LCD screen with a brightness of 1200 nits, clearly visible even in sunlight, supports full touch operation;
10. Dual power supply: AC 85-264V or built-in lithium battery, featuring intelligent charging management, remaining power display, and low-battery voice alarm;
11. A non-volatile clock with 1000 built-in test data sets, supporting USB export for direct computer editing;
12. Built-in thermal printer for fast and silent printing;
13. Intelligent voice assistant providing real-time anomaly alarms and operation guidance;
14. Customized low-voltage short-circuit leads for safe tool-free connection;
15. Optional Bluetooth/WiFi module for mobile app control and data download;
16. Compact (320×270×145mm) and lightweight (7.1kg) for easy portability.

1. Input characteristics
Active part: Voltage measurement range: 0~10V
Current measurement range: 0~10A
Passive part:
Voltage measurement range: 0~750V wide limit (can be connected to an external voltage transformer).
Current measurement range: 0~100A internal automatic switching range (can be connected to an external current transformer).
2. Measurement accuracy:
Voltage, current, frequency: ± 0.2%
Power: ± 0.5% (Cos Φ>0.1), ± 1.0% (0.02)
3. Analysis of winding materials: copper, aluminum
4. Capacity measurement range: 30kVA~125000kVA
5. DC resistance test:
Output current: 0-12A
Measurement range: 0.5m Ω -25K Ω
Test accuracy: 0.2%
Resolution: 0.1
6. Applicable transformers:
Voltage levels: 10KV, 20KV, 35KV, 66KV, 110KV, 220KV, 330KV
Oil immersed transformer type: S9 \ S11 \ S13 \ S15 \ non-standard transformer
Dry type transformer types: SCB type, SGB type, photovoltaic type
7. Transformer ratio test: accuracy ± 0.2%
8. Transformer turn ratio test: accuracy ± 0.2%
9. Intelligent electronic ruler: measuring range of 0mm-150mm, accuracy of 0.01mm
10. Temperature acquisition: Range: -50 ℃~+70 ℃, accuracy: 0.1 ℃
11. Power supply: AC 85-264VAC and built-in lithium battery
12. LCD display: 7 inches, 800 * 480 resolution, 1200 brightness
13. Charging power supply: 85-264VAC
14. Printer: Micro embedded printer
15. Keyboard: Multi functional embedded keyboard input
16. Calibration method: automatic
17. Working temperature: -10 ℃~40 ℃
18. Environmental humidity: 10%~85%
19. Storage temperature: -20 ℃~50 ℃
20. Dimensions: 320mm × 270mm × 145mm
21. Weight: 7.1kg (excluding testing line)