Magazine | Issue 1 2023 Artificial Intelligence SFRA Measurement Validation Web Service: PTM 5.00 uses modern algorithms to test and assess the validity and quality of measurements for the SFRA. In simple terms, it works like this: PTM sends the measurement results to our web service, which analyzes the results and processes the data. Then it sends the classification results back to PTM. The algorithms report the validity and quality of the measurement results to the user and indicate any weaknesses in the measurement process. The aim is to bolster trust in the measurement results and promptly repeat the measurement once the cause of the fault has been eliminated. There are four different quality tests available for validation: › Detection of noise in the nominal and harmonic frequency › Detection of background noise › Pattern recognition › Remanence state of the transformer And that’s not all: › Polarity Check: PTM 5.00 supports polarity measurements on current and voltage transformers in combination with CPOL. › New equipment type—shunt reactor: The shunt reactor has been added to the list of available equipment. › VAM support tool: The new version of the vibro-acoustic measurement (VAM) now includes a support tool. With this tool, users can upload their VAM data to an OMICRON server with the click of a button and request assistance from our technical support team. By uploading the measurement data in the MR Reinhausen customer portal, you can request an assessment of the respective on-load tap changer (OLTC) from MR. 11
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