Portable Fully Automatic TTR Tester – Transformer Turns Ratio Tester

High-Precision Measurement
Engineered with advanced microprocessing technology for accurate turns ratio testing, ensuring reliable data with ±0.1% precision. Ideal for power transformers, distribution units, and industrial electrical maintenance.
Fully Automatic Operation
One-touch testing simplifies workflow—no manual calculations needed. Auto-detects phase shifts and displays results instantly on the bright LCD screen, saving time for engineers and technicians.
Robust & Portable Design
Built with shock-resistant ABS casing and reinforced connectors for durability. Compact and lightweight (under 2kg) for easy field use in substations, factories, or remote sites.
Wide Compatibility
Supports single-phase and three-phase transformers (1kV-10kV), with customizable test frequencies (50Hz/60Hz/400Hz). Includes built-in thermal printer for instant reports.
Safety-Certified
Meets IEC 61010 standards with overvoltage protection and auto-discharge function. Ensures operator safety during high-voltage testing.
Best Wholesale Price
Direct factory sourcing guarantees unbeatable bulk pricing—no middlemen. Global shipping available for resellers and large-scale procurement.