Omicron FRAnalyzer

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The OMICRON FRAnalyzer uses swept frequency response analysis to detect mechanical and electrical changes of the core and winding assembly of power transformers.


The Omicron FRAnalyzer sweep frequency response analyzer was developed for testing the integrity of power transformers after transportation or occurrence of high currents. The FRAnalyzer uses the SFRA principle (Sweep Frequency Response Analysis) and measures the electrical transfer function in a wide frequency range. It detects winding defects and faults in the magnetic core – thereby helping to improve transformer reliability, reduce maintenance costs and prevent costly failures.
Key features
– Reproducible results thanks to innovative connection technology
– Extremely small and compact device (<1.8kg/4lbs) - Wide dynamic measuring range (>120dB)
– Fast measurement times (around 30 seconds per measurement)
Applications for transformer testing after:
– A short circuit event
– Transport
– Occurrence of high transient fault currents
– A significant change in the monitored values (e.g. combustible gases) or a safety shutdown
Applications for routine testing:
– Routine transformer condition measurement
– Verification of unusual events determined during conventional testing