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

The XHZ is a 2-in-1 distribution transformer test system that combines DC resistance and transformation ratio measurement in a single instrument with one wiring connection. Designed for power engineering, installation and maintenance teams, it completes distribution transformer handover tests, routine maintenance and on-site fault diagnosis quickly and accurately, reducing test time and improving commissioning efficiency.

Target Audience

Designed for field engineering, commissioning & maintenance teams:

• Power engineering and installation companies performing transformer handover tests
• Distribution network O&M teams conducting routine maintenance and fault diagnosis
• On-site commissioning engineers testing Yn, Y and Δ winding transformers

Key Features

• One wiring connection for both DC resistance and transformation ratio tests
• Three-phase automatic DC resistance testing for Yn, Y and Δ type windings
• Automatic unbalance rate calculation for fast on-site judgment
• 7-inch industrial touch screen with jog dial for convenient field operation
• Built-in 7.8AH lithium battery and charger for all-day field work
• Wired and wireless communication interfaces for future function expansion
• Embedded Linux OS with A7+M4 dual-core architecture for smooth operation
• Built-in printer and USB storage for instant on-site reporting

Applications

• Distribution transformer handover and acceptance tests
• Routine maintenance and on-site fault diagnosis
• DC resistance and ratio tests of Yn, Y and Δ windings
• PT/CT transformer ratio measurement

Technical Specifications

FAQ