SFRA is a powerful diagnostic tool because SFRA trace represents a fingerprint of a transformer winding’s construction and physical position within the main tank of the transformer. Therefore, if the SFRA trace deviates from a baseline trace, then it is probable that some components of the transformer are physically changed or the test was not repeated in the same way as the first time.
The comparison of SFRA results measured under different conditions could be one of the possible reasons for getting the wrong SFRA results assessment. Attention must be given to some factors, which are influencing the response of the SFRA traces. It is often very critical or even impossible to distinguish between measurement mistakes and real damage inside the tested transformer.
Our new application note will help you to identify those different factors and avoid their influence on the SFRA traces.
FRA500變壓器繞組變形分析儀是一項功能強大的診斷工具，因為SFRA軌跡代表了變壓器繞組結構的指紋以及在變壓器主油箱內的物理位置。因此，如果SFRA軌
跡偏離基線，則可能是變壓器的某些組件發生了物理變化，或者沒有以與第一次相同的方式重複測試。
您也可以在不同條件下測得的SFRA結果進行比較，來作為鑑別錯誤量測。所以必您必須清楚了解這些造成SFRA軌跡響應的因素。
因關鍵因素往往所影響的是讓您無法有效區分是測量錯誤或變壓器的內部實際損壞。
我們的應用筆記將幫助您確定那些不同的因素，並避免它們對SFRA軌跡的影響。
