| Winding Deformation Tester Darui Electric recommends for you Product Features: 1.USB communication interface between PC and instrument. 2.Automatically generate Word electronic documents for saving and printing. 3.The computer generates electronic documents (WORD) from test results. 4.The signal output amplitude can be adjusted by software, with a peak value of ±10V. 5.The acquisition control uses a high-speed, highly integrated microprocessor. 6.The finished circuit board has a special surface treatment to resist water and harmful gas pollution. 7.The laptop and measuring instrument are powered by isolated power supplies to eliminate external interference. 8.High-resolution dB value measurement, dual-channel 16-bit A/D (changing the tap changer during field tests results in obvious output changes). 9.Using high-stability components, repeated tests on the same phase yield a measurement repeatability rate above 99.5%. 10.The instrument has dual measurement system functions: linear sweep measurement and segmented sweep measurement, compatible with the two current domestic technical schools of measurement modes. 11.The amplitude-frequency characteristics comply with the national technical indicators for amplitude-frequency characteristic testers. The horizontal axis (frequency) has both linear and logarithmic scales, so the printed curves can be either linear or logarithmic, allowing users to choose according to actual needs. 12.Fully meets the technical conditions of the electric power standard DL/T911-2004 "Frequency Response Analysis Method for Winding Deformation of Power Transformers". 13.The hardware core uses DDS dedicated digital high-speed sweep technology (USA). Through testing, faults such as winding distortion, bulging, displacement, tilting, inter-turn short circuit deformation, and phase-to-phase contact short circuit can be accurately diagnosed. 14.Automatic data analysis system for test data, comparing similarity among phases A, B, and C horizontally. The results are: ① Very good consistency ② Good consistency ③ Poor consistency ④ Very poor consistency. Longitudinal comparison of A-A, B-B, C-C retrieves original data and compares with current data for the same phase to assess winding deformation. The results are: ① Normal winding ② Mild deformation ③ Moderate deformation ④ Severe deformation. |
