The KDBR‑CZ Distribution Transformer Copper/Aluminum Material Analyzer is a next‑generation multifunctional tester integrating copper/aluminum material identification, capacity measurement, no‑load loss, load loss, DC resistance, turns ratio, and transformer code level testing.
Built on an upgraded ARM+FPGA+ADC architecture with an RT‑Thread real‑time OS, it delivers enhanced stability and precision. Its 7‑inch color touchscreen with a Win8‑style interface simplifies operation, while built‑in high‑capacity storage and USB communication enable data saving and PC transfer. The instrument supports remote firmware upgrades and real‑time harmonic analysis, making it a comprehensive solution for modern transformer diagnostics.

• Multifunctionality: Combines four instruments in one (active transformer capacity tester, transformer characteristic tester, DC resistance tester, and transformer material analyzer).
• High Precision: Adopts ARM+FPGA+ADC mode with RT‑Thread OS, ensuring stable performance and accurate measurements.
• User‑Friendly Interface: 7‑inch color touchscreen with Win8‑style Chinese menu, electronic help, and wiring diagrams for intuitive operation.
• Portability: Built‑in rechargeable battery allows up to 100+ tests on a single charge, no external power required.
• Data Management: Large‑capacity storage, USB port for data transfer to PC, and automatic result correction (temperature, waveform, etc.).
• Safety & Protection: Overload protection circuits and flexible range extension via external CT/PT.
• Advanced Diagnostics: Real‑time voltage/current monitoring, harmonic analysis, phasor diagram plotting, and performance evaluation based on test results.

• Built‑in Power Output:
  • Voltage: 0–10V
  • Current: 0–10A
• Characteristic Channel Measurement:
  • Voltage range: AC 750V, accuracy: ±0.2%(F.S) ±1 digit
  • Current range: AC 100A, accuracy: ±0.2%(F.S) ±1 digit
• DC Resistance Measurement:
  • Ranges: 0.001Ω–0.1Ω(10A), 0.03Ω–1Ω(5A), 0.06Ω–5Ω(1A), 0.1Ω–50Ω(200mA), 0.3Ω–200Ω(30mA), 100Ω–100kΩ(<5mA)
  • Accuracy: 0.2% ±2µΩ, resolution: 0.1µΩ
• Material Testing: Suitable for 10kV dry‑type distribution transformers
• Power & Loss Accuracy:
  • Power: ±0.5%(F.S) (CosΦ>0.1), ±1.0%(F.S) (0.02<CosΦ<0.1)
  • No‑load/load loss: ±2% (0.1≤CosΦ≤1)
• Transformer Capacity Range: 6.3–125000kVA
• Operating Temperature: -20°C ~ +60°C
• Dimensions: 37cm (L) × 32cm (W) × 19cm (H), Volume: 22496cm³, Weight: 15000g