XHZ 2-in-1 Distribution Transformer Test System for Factory DC Resistance & Ratio Testing

The XHZ is a 2-in-1 distribution transformer test system integrating DC resistance and transformation ratio measurement for factory acceptance and quality inspection. With 20A output current, a ratio range of 0.9~5000 and high accuracy, it helps transformer manufacturers, testing laboratories and research institutes perform precise, repeatable factory tests, type tests and quality control of distribution transformers.

Target Audience

Designed for manufacturers, laboratories & test institutes:

• Distribution transformer manufacturers performing factory acceptance (FAT) and type tests
• Third-party testing laboratories and research institutes for transformer inspection
• Quality inspection teams evaluating winding resistance and ratio performance

Key Features

• 2-in-1 design: DC resistance and transformation ratio in one instrument
• 20A maximum output current with multi-gear selection (20A/10A/5A/1A/0.1A/≤10mA)
• High accuracy: ±0.2% for resistance, ±0.1% for ratio (≤500)
• Wide ratio range 0.9~5000 with resolution down to 0.0001
• Supports three-phase, single-phase, Z-type transformers and PT/CT ratio testing
• Automatic unbalance rate calculation for winding quality evaluation
• 7-inch industrial touch screen, embedded Linux OS and A7+M4 dual-core architecture
• Data storage, record query, built-in printer and USB export for factory reports

Applications

• Factory acceptance testing (FAT) of distribution transformers
• Type tests and quality inspection of winding resistance and ratio
• Three-phase, single-phase and Z-type transformer ratio testing
• PT/CT transformer transformation ratio measurement

Technical Specifications

FAQ