Megger TAU3 ADV, EXP or PRO – True Three Phase Transformer Winding Analyser

• Patent-pending step-up technology with internal shorting for one-time lead connection across every test
• Automatic find-vector and polarity validation before each measurement
• Simultaneous three-phase excitation for dramatically quicker testing
• Turns ratio up to 250 V with ±0.05 % accuracy
• Winding resistance with dual-channel output to 32 A and ±0.1 % accuracy
• Adaptive demagnetisation performed automatically after every test
• Short-circuit impedance and transformer efficiency measurements included
• One-Touch OLTC control for seamless AC and DC testing
• Bright 10.1″ hi-bright touchscreen with on-screen nameplate vector matching
• Rugged wheeled case weighing just 17 kg – up to 75 % lighter than comparable systems

Whether you’re testing power transformers in the yard, distribution units on site or instrument transformers in the workshop, the Megger TAU3 ADV, TAU3 PRO and TAU3 EXP turn complex electromechanical testing into a straightforward, one-connection job. With true three-phase power, clever automation and a host of diagnostic tools built in, they combine impressive accuracy with genuine time-saving features – all wrapped in a tough, portable package that makes light work of heavy jobs. In short, they’re the modern way to keep transformers healthy and your schedule on track.