0.05 Accuracy CT Transformer Ratio Tester with 25,000A Range and 100VA Load Capacity for On-Site Calibration

The Automatic Portable CT Transformer Ratio Tester is a precision instrument designed for on-site calibration and testing of current transformers with exceptional 0.05 accuracy class performance.

• Built-in 0.05 accuracy standard current transformer with matching ratios
• 7-inch 800×600 color LCD display showing ratio error, phase angle difference, and secondary loop load simultaneously
• Eliminates need for external standard CTs, current boosters, load boxes, and heavy current leads
• Automated error testing at predefined points for streamlined operation
• Comprehensive testing capabilities for CT ratio, DC internal resistance, and voltage load box
• Intelligent wiring error detection with alarms for incorrect connections, ratio mismatches, and polarity issues
• Clear pass/fail result indicators for easy interpretation
• On-site data storage for up to 1000 test groups
• USB data export and on-site printing capabilities
• Complete test data management software included
• Shock-proof, robust plastic case with high-voltage resistance for operator safety

• Utility companies for accurate energy consumption measurement and monitoring
• Governmental metrology bureaus for standards compliance and regulation enforcement
• Energy meter manufacturers for precision testing and reliability verification

1. Premium quality construction and components
2. Intuitive operation with automatic wiring diagram display and measurement process switching
3. Comprehensive self-diagnostic capabilities with over-voltage and over-current protection