Transformer DC Resistance Tester with 10A Current and LCD Display

The XZH TEST XHZ1010S is a professional-grade Transformer DC Resistance Tester engineered for precision winding resistance measurement in manufacturing QA, field commissioning, and routine maintenance environments. With a robust 10A test current output, 0.2% accuracy, and 0.1μΩ resolution, this instrument delivers the reliability and repeatability required for critical power transformer diagnostics.

Transformer DC resistance testing is an essential procedure throughout the equipment lifecycle — from semi-finished and finished product quality control, factory acceptance testing, and on-site installation verification, to post-overhaul inspection and tap changer modification validation in power systems.

• Advanced Power Supply Technology — Compact, lightweight design without compromising output power, ideal for both lab bench and field deployment.
• High Output Current with Excellent Repeatability — 10A maximum test current ensures stable, reproducible measurements even on large transformer windings with high inductance.
• Strong Anti-Interference Capability — Comprehensive protection circuits guard against overvoltage, overcurrent, and misconnection, ensuring safe operation in high-EMI substation environments.
• Automated Microcontroller Operation — One-touch auto-ranging with 7 current levels (AUTO, <20mA, 40mA, 200mA, 1A, 5A, 10A) intelligently selects the optimal range for each measurement.
• Built-in Automatic Discharge & Alarm — Safely dissipates residual winding energy after each test, with audible and visual alerts upon completion.
• High-Resolution 320×240 65K Color LCD Display — Crisp 4-digit resistance readout with backlight ensures clear visibility in both bright outdoor and dim indoor conditions.
• Onboard Data Storage for 1000 Test Records — Eliminates manual logging; review and export historical data for trend analysis and compliance reporting.