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KDB-II Automatic Transformer Turns Ratio, Polarity & Vector Group Tester
KDB-II Automatic Transformer Turns Ratio, Polarity & Vector Group Tester

KDB-II Automatic Transformer Turns Ratio, Polarity & Vector Group Tester

Applications:

Designed specifically for quality monitoring during the manufacturing and field operation of power transformers. Ideal for detecting inter-turn short circuits, open circuits, wiring errors, and internal faults in on-load tap changers in distribution and power transformers. Suitable for routine maintenance, commissioning, and troubleshooting in substations, transformer manufacturing plants, and field operations. Enables technicians to quickly and accurately assess transformer turns ratio and connection groups, ensuring reliable operation.

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

KDB-II is a fully automatic transformer turns ratio and connection group tester with more user-friendly operation and faster testing speed. Its wide measurement range of 1-10000 allows for automatic single-phase and three-phase testing in seconds, including AB, BC, CA comparisons, errors, and connection groups. The device automatically saves measurement results and features intuitive Chinese menu prompts, making it ideal for both laboratory and field applications.

Features:

1. Wide turns ratio measurement range: 1-10000;
2. Powerful Functions: Automatic single-phase and three-phase testing with selectable connection groups; completes AB, BC, and CA comparison, error, and connection group measurements in one operation;
3. Fast Measurement Speed: Three-phase testing completes in just a few seconds;
4. Automatic Power Off After Measurement Completion;
5. Automatically Saves Settings and Measurement Results, with Historical Data Viewing Available;
6. Single-Phase Input for On-Load Tap Changing Transformer Testing;
7. Portable Design, Ideal for Outdoor Operations.

Parameter:

Parameter Specification
Turns Ratio Range 1 – 10,000
Measurement Accuracy - 1–1,000: ±0.2% ±2 digits
- 1,000–10,000: ±0.5% ±2 digits
Vector Group Range 1 – 12 (I–XII)
Power Supply AC 220V ±10%, 50 Hz
Operating Temperature 0°C – 40°C
Relative Humidity <80% RH (non-condensing)
Dimensions (W×D×H) 400 mm × 290 mm × 170 mm
Test Mode Single-phase or automatic three-phase
Safety Feature Automatic test power cutoff after measurement