Three-Phase Transformer DC Resistance Tester with Touchscreen One-Button Shuttle Operation 40A| XHZ1340A

DC resistance testing is mandatory for transformers during manufacturing (semi-finished and finished products), installation, handover, and preventive maintenance, detecting production defects such as coil material and welding issues, loose connections, missing strands, and breaks, as well as operational hazards. To enable rapid DC resistance measurement, this company has developed the Transformer DC Resistance Tester with in-house technology. This new-generation tester integrates magnetizing method testing, three-phase testing (Yn, Y, and Δ), and demagnetization, making it ideal for large power transformers. It features a true-color high-resolution large LCD screen, touch plus shuttle knob operation for on-site convenience, Chinese menu prompts for intuitive use, one-time wiring for all tests, fast speed, high accuracy, and a wide measurement range.

Product Image

• Three-phase measurement for Yn, Y, and Δ windings with automatic imbalance rate calculation
• 40A maximum output current and 0-25kΩ test range, integrating magnetization and demagnetization
• Automatic resistance change rate calculation at 5S, 15S, and 30S to prevent data misreading
• Multiple protections: 380V misconnection, back EMF, open circuit, power failure, grounding disconnection alarm
• Thermal printer with 200-entry built-in storage and USB flash drive expansion
• Industrial 7-inch true-color touchscreen with one-button shuttle operation

Designed for transformer manufacturing QC teams, installation and commissioning engineers, and preventive maintenance personnel who perform mandatory DC winding resistance measurement during production, handover, and routine maintenance. Unlike winding deformation analyzers used for post-fault structural diagnosis, this instrument serves routine resistance verification and three-phase balance assessment across the entire transformer lifecycle.

• Power systems: power generation, transmission, transformation, and distribution
• Factories and Mines: large-scale manufacturing plants and various mining companies
• Metallurgy and Petrochemicals: smelting, chemical processing, water treatment
• Transportation: ports, railways, highways, airports and municipal streetlights
• Enterprises and Institutions: logistics departments of large enterprises and institutions
• Construction Industry: large construction and property management companies
• Power Installation and Testing: power installation and commissioning companies of all levels