Huazheng Electric Manufacturing (Baoding) Co.,Ltd is one of the most professional hzttr80ap digital ttr transformer turns ratiometer manufacturers and suppliers in China. Please feel free to buy cheap products made in China here from our factory.

HZTTR80AP Digital TTR Transformer Turns Ratiometer

Key Features

✔ PT Ratio & Polarity Testing – Accurately measures PT ratios and verifies polarity.
✔ Blind-Testing Function – Automatically determines three-phase transformer turn ratios, phase relationships, and group numbers-even with unknown connection types.
✔ Wide Compatibility – Supports autotransformers, Z-type transformers, and phase-shifting transformers.
✔ Flexible Tap Settings

Configurable for high-voltage (HV) or low-voltage (LV) tap positions.

Dedicated LV-side tap mode for specialized transformer designs.
✔ Intuitive Interface – Graphical display for clear, real-time data visualization.
✔ High Efficiency – Measures three-phase ratios simultaneously for faster results.
✔ Long Battery Life – High-capacity lithium battery supports 1,000+ tests per charge.
✔ Auto Power-Off – Conserves energy by shutting down after 30 minutes of inactivity (with audible alert).

Technical Data

Transformation Ratio: 0.9–10,000

Current: 0–2,000 mA

Angle: 0–360°

Accuracy

Ratio Accuracy:

5V Range:

0.9–50: ±(0.1% + 2 digits)

51–200: ±(0.2% + 2 digits)

201–600: ±(0.5% + 2 digits)

80V Range:

0.9–500: ±(0.1% + 2 digits)

501–2,000: ±(0.2% + 2 digits)

2,001–10,000: ±(0.5% + 2 digits)

Current Accuracy: ±(1% of reading + 0.5 mA)

Angle Accuracy: ±0.2°

Output & Resolution

Output Voltage: Selectable (5V or 80V)

Resolution:

Ratio: 0.0001

Current: 0.001 mA

Angle: 0.01°

Test Voltage

5V @ 1A (AC)

80V @ 80mA (AC)

Power Supply: The instrument is powered by a 14.8V, 10Ah lithium polymer battery. After being fully charged, the battery can support at least 1,000 measurements.

Charger: Input voltage: 100-240V, 50/60Hz.
Ambient Temperature: -10°C to 40°C
Relative Humidity: ≤85%, non-condensing
Dimensions: Main Unit: 360290170(mm), Cable Box: 360290170(mm)

Troubleshooting and Maintenance

If any abnormalities occur during the use of the tester, please follow the steps below for troubleshooting:

If the measurement data is abnormal, please check if the wiring is correct. If it is still abnormal, you can perform a self-test using the following method. The wiring is shown in the figure below:

After connecting the wires, select any three-phase connection method for testing. If the measured value is approximately 1.0000, the instrument is functioning normally; otherwise, there is an issue with the instrument. If no shorting wire is available, you can also short-circuit the high-voltage side yellow, green, and red wire clamps to the corresponding low-voltage side yellow, green, and red wire clamps.

If there is no response at all when turning on the device and the display screen remains dark, please confirm whether the battery is depleted. After charging, check if the device can be turned on.

If it is confirmed to be an internal fault of the tester, please contact our company immediately, and we will resolve it as soon as possible.

Packing list