ZX-BC Automatic Transformer Ratio Tester: Technological Advancement in Power Equipment Testing

This technical analysis compares the ZX-BC Fully Automatic Transformer Ratio and Vector Group Tester with conventional ratio bridge methods, highlighting its innovative design and superior performance in modern power system testing applications.

1. Introduction
Transformer turns ratio (TTR) and vector group testing are critical for power equipment verification. Traditional ratio bridges, while functional, face limitations in field adaptability and operational efficiency. The ZX-BC tester addresses these challenges through advanced electronics and user-centric design.

2. Limitations of Conventional Methods

Restricted to AC mains power supply

Manual calculation of vector groups

Limited range (typically ≤ 1,000:1)

Bulky instrumentation (8-10 kg)

No integrated data storage or CT testing capability

Analog displays with poor visibility in sunlight

3. ZX-BC Technological Innovations
3.1 Power System Optimization
Dual power architecture supports:

8.4V/3Ah Li-ion battery (8+ hours continuous operation)

Universal 100-240VAC charger (3-hour fast charging)
Field runtime exceeds legacy devices by 300%, eliminating dependency on unstable grid power.

3.2 Measurement Performance

Extended range: 0.9-10,000 (±0.1% basic accuracy)

Adaptive resolution: 0.0001-1 digit

Blind measurement algorithm for unknown vector groups

CT polarity verification (1% phase angle resolution)

3.3 Human-Machine Interface*

Sunlight-readable 6" TFT-LCD (1280×800 IPS)

Multi-format data storage:
Onboard 16GB memory
USB export (CSV/PDF)
Thermal printing (58mm width)

4. Comparative Specifications

5. Field Application Advantages

Completed 100+ transformer tests per charge cycle

Reduced Z-type transformer testing time by 65%

Withstands -10°C to 50°C operational temperatures

Dual-shielded cables with 5kV surge protection

6. Conclusion
The ZX-BC represents a paradigm shift in ratio testing technology, offering 10× range extension and 5× accuracy improvement over conventional bridges. Its IP54-rated portable design and intelligent measurement algorithms make it particularly suitable for substation maintenance and renewable energy installations requiring high-density transformer testing.

GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/