The Megger FRAX Series Sweep Frequency Response Analysers (FRAX 99, 101, and 150) stand as vital tools for diagnosing electro-mechanical issues in power transformers, safeguarding the backbone of transmission and distribution networks. These analysers excel at detecting winding deformations, shorted turns, core movements, and faulty grounds by capturing a transformer’s unique frequency response fingerprint, which can be compared against baseline data to reveal even subtle changes. With a frequency range spanning 0.1 Hz to 25 MHz and a dynamic range up to 150 dB (FRAX 101 and 150), they offer unmatched precision, meeting rigorous standards like IEC 60076-18 and IEEE C57.149.
The FRAX 150’s integrated PC and 12-inch touchscreen simplify operation, while FRAX 101’s Bluetooth connectivity and optional battery power for both 99 and 101 models enhance field flexibility. Ground loop detection (101 and 150) and superior cabling technology ensure repeatable results, backed by a Field Test Box FTB101 for on-site validation. The included FRAX software provides powerful analysis tools, including automated curve comparison and cross-correlation, enabling swift, informed decisions. Housed in rugged cases—lightweight at 1.4 kg for FRAX 99 and 8.5 kg for FRAX 150—these analysers are built for demanding environments. With data import/export capabilities and a canvas accessory bag, the FRAX Series combines portability, precision, and practicality, making it an essential investment for utilities aiming to prevent costly transformer failures.
