Transformer Winding Deformation Tester

Product Overview

Transformer Winding Deformation Frequency Response Transformer Winding Deformation Tester Developed by Wuhan Xinhuafu Electric Equipment Co., Ltd., featuring both frequency response and low-voltage short-circuit impedance testing methods. Measures the winding of power transformers using two distinct methods..The surface reflection of the transformer's winding characteristics enables more accurate analysis and diagnosis of winding deformation. Both frequency response and impedance methods are two equipment completed..American Synthesis saves testing time and boosts work efficiency.
 

Transformer Winding Deformation Frequency Response Impedance tester (using frequency response method) for testing6kVAbove-mentioned voltage level power transformers and transformers for special applications. During operation or transportation, power transformers inevitably suffer from various fault short-circuit currents or physical impacts. Under the powerful electromagnetic force generated by short-circuit currents, transformer windings may lose stability, leading to local distortion, bulging, or displacement, etc..The long-term deformation phenomenon can severely affect the safe operation of transformers. According to the national electricity industry standardsDL/T911－2004By employing frequency response analysis to measure transformer winding deformation, it involves detecting the amplitude-frequency response characteristics of each winding in the transformer and comparing the results either vertically or horizontally. Based on the degree of change in the amplitude-frequency response characteristics, the potential deformation situations of the transformer windings can be judged.
 

Transformer Winding Deformation Frequency Response Impedance tester (low voltage impedance method) is based onDLT 1093-2008 Guidelines for electrical reactance detection and judgment of transformer winding deformation, specially developed for measuring the impedance characteristics of large and medium-sized transformers, and an intelligent instrument for this purpose. Issued by the National Electric Power Corporation.[2000] 589 In the document titled "The Twenty-Five Key Requirements for Preventing Major Accidents in Electric Power Generation."15.2Article states:110KVAbove voltage level transformers should undergo low voltage short-circuit impedance testing or frequency response testing for winding deformation prior to shipment and production, to retain original records.15.6 Regulation states: "After a transformer has suffered a local sudden short circuit, it should undergo a low-voltage short-circuit impedance test or use frequency response analysis to test winding deformation, and compare it with the original records. Only after determining that the transformer is free of faults can it be put into operation." Low-voltage impedance testing can accurately reflect the changes in impedance values of the transformer before and after winding deformation.

Transformer Winding Deformation Frequency Response The impedance tester utilizes high-precision, synchronized AC sampling of voltage and current within its instrument.FFTThe digital signal processing technology ensures accurate and stable measurement data. The instrument employs either three-phase automatic measurement or single-phase measurement methods, reliably short-circuiting the low-voltage side. After inputting transformer parameters, the instrument can automatically test and calculate the impedance and impedance error percentage for each phase. During the testing process, it displays voltage and current waveforms, making it more suitable for on-site use.
 

Transformer Winding Deformation Frequency Response The impedance tester is composed of a measuring section and an analysis software section. The analysis portion is handled by a laptop, while the measuring section is conducted through...USBCable connected to a laptop.