Raytech MINI-ATOS Transformer Observation System

The Raytech MINI-ATOS is a high-precision transformer observation system built for automated testing of transformer performance. Ideal for utilities and transformer manufacturers, it performs turns ratio, winding resistance, and phase deviation tests across up to 30 tap positions—entirely controlled from a touchscreen interface.

With full 3-phase automation, built-in safety interlocks, and onboard data archiving, the MINI-ATOS enhances test speed, consistency, and operator safety.

Key Features & Benefits:

• Performs TTR, resistance, and phase angle testing
• Automated 3-phase test sequencing for fast diagnostics
• Measures up to 30 tap positions with auto-load tap changer support
• High-voltage interlock system ensures safe operation
• Built-in printer and internal data storage for report generation
• Designed for utility field teams and transformer OEMs

Specifications:

• Power Supply: 90–264 V AC 
• Measurement Ranges: 0.1–10,000 for ratio; 1 µΩ–10 kΩ for resistance 
• Comms: USB, Ethernet, RS232 
• Display: 10” TFT touchscreen 
• Applications: Power/distribution transformers, tap changers 
• Data Logging: Internal + exportable PDF/CSV reports