The HZBB-10A Transformer Turns Ratio (TTR) Tester by Huazheng Electric ensures accurate, fast, and reliable transformer testing. Designed for new and existing transformers, it verifies turn ratios, tap changer positions, and inter-turn insulation integrity. With intuitive operation, high-precision measurement, and versatile connectivity options, it streamlines field and factory testing, improving efficiency and safety for power utilities, substations, and industrial electrical systems.
How Does the HZBB-10A Improve Transformer Testing Accuracy?
The HZBB-10A integrates a three-phase precision inverter power supply, eliminating harmonic distortion from mains voltage and generator sources. This ensures highly accurate measurement of transformer ratios and phase angles. Its automated identification of wiring groups, coupled with the ability to measure multi-winding low-voltage transformers without disassembly, significantly reduces human error and testing time.
What Types of Transformers Can Be Tested with the HZBB-10A?
This tester supports a wide range of transformer types, including Z-type, rectifier, grounding, electric furnace, and phase-shifting transformers. Its adaptive measurement system handles complex configurations efficiently, making it suitable for utility, industrial, and power generation environments, where diverse transformer types are common.
Which Safety Features Are Included in the HZBB-10A?
The device is equipped with comprehensive protection mechanisms: high/low voltage reverse connection protection, turn-to-turn short circuit protection, tap changer off/off protection, and full output short-circuit protection. These features enhance instrument stability and safeguard both the tester and transformer during operation, ensuring reliable and safe field testing.
How Does the HZBB-10A Handle Tap Changer Measurements?
After entering rated parameters, the tester automatically measures transformer ratio, error values, and tap changer positions. It accurately detects up to 99 tap positions, including asymmetric tap changers, ensuring precise monitoring and verification of transformer performance. This capability is essential for ensuring transformers operate correctly in parallel and under varying load conditions.
What Display and User Interface Options Are Available?
The HZBB-10A features a 7-inch high-brightness touch LCD, readable under strong sunlight, with full touchscreen operation and multilingual support (Chinese/English). Data can be printed, exported via USB, or transmitted through an optional RS232 interface, enabling paperless documentation and seamless integration with digital workflows.
How Can Mobile Devices Integrate with the HZBB-10A?
Users can control the tester via Android phones or tablets through a dedicated app linked to the instrument. Test data can be stored, uploaded, and referenced remotely, enhancing flexibility for field engineers and facilitating real-time reporting.
What Are the Key Technical Parameters?
| Parameter | Specification |
|---|---|
| Test range | Variable ratio -0.9 to 10000, angle 0°–360° |
| Ratio accuracy | ±0.1%+2 (0.9–500), ±0.2%+2 (501–2000), ±0.5%+2 (2001–10000) |
| Angle accuracy | ±0.2° |
| Output voltage | Automatically adjusted per load |
| Resolution | Ratio: 0.0001, Angle: 0.01° |
| Power supply | AC 220V ±10%, 50 ±1Hz |
| Operating temperature | -10°C to 40°C |
| Relative humidity | ≤85%, non-condensing |
| Dimensions (Host/Cable Box) | 360×290×170 mm |
| Weight (Host/Cable Box) | 5 kg / 5.6 kg |
| Test line length | Standard 13 m, customizable |
Where Is the HZBB-10A Ideal for Use?
The HZBB-10A is suitable for utility companies, substations, power plants, transformer manufacturers, electrical contractors, and research institutions. Its portability, precision, and protection features make it ideal for factory testing, commissioning, maintenance inspections, and on-site diagnostics.
Wrindu Expert Views
“High-precision transformer testing is critical for system reliability. The HZBB-10A provides advanced automation, precise ratio and angle measurement, and flexible connectivity options. Its robust safety protections and compatibility with multiple transformer types make it an essential tool for engineers and maintenance teams. Integrating mobile control and cloud-based data storage ensures efficiency, traceability, and compliance with modern power system standards.” – Wrindu Technical Team
Conclusion
The HZBB-10A TTR Transformer Tester combines accuracy, speed, and safety in a portable package. With three-phase precision measurement, comprehensive safety features, intuitive touchscreen interface, and mobile integration, it enhances testing efficiency and reliability. Wrindu recommends this instrument for utilities, manufacturers, and research labs seeking dependable transformer ratio verification and maintenance solutions.
Frequently Asked Questions
Q1: Can the HZBB-10A test multiple transformer types simultaneously?
Yes, it supports various transformers including Z-type, rectifier, grounding, and phase-shifting transformers, streamlining complex testing tasks.
Q2: Does the HZBB-10A support paperless operation?
Yes, it offers USB export, RS232 connectivity, and mobile app integration for digital data storage and reporting.
Q3: Is the HZBB-10A suitable for field testing in harsh environments?
Absolutely. Its sealed, shock-resistant, and temperature-resistant design makes it ideal for outdoor and industrial conditions.
Q4: How does the tester improve measurement efficiency?
Three-phase output and automatic wiring group recognition enable fast, accurate measurements without disassembling low-voltage windings.
Q5: Can mobile devices fully control the HZBB-10A?
Yes, through a dedicated Android app, users can operate the tester, store, and upload test data remotely.