XWE-8002A Sweep Frequency Response Analyzer
About the product
The Sweep Frequency Response Analyzer is used for power transformers with a voltage grade of 66kV and above and other transformers with special purposes. The power transformer is inevitably vulnerable to impulses of various fault short-circuit currents or physical collision in the process of operation and transportation, and the transformer windings may lose stability under the powerful electro-dynamic force exerted by such short-circuit current, which could result in permanent deformations such as local distortion, swell, or dislocation and will severely affect safe operation of the transformer. Deformation of transformer windings is measured with a frequency response analysis method according to national standard DL/T911-2016/IEC60076-18 for the electric power industry, i.e., to detect the amplitude-frequency response characteristic of each transformer winding and make vertical or horizontal comparison of the detection result to judge possible deformation of the transformer winding based on change of amplitude-frequency response characteristics.
Main Technical Characteristics
- Characteristics of transformer windings are measured with the frequency sweep method. Deformations of windings such as distortion, swell, or displacement of 66kV and above transformers are measured by detecting amplitude-frequency response characteristics of each winding, not requiring lifting of the transformer enclosure or disintegration.
- Quick measuring, measuring of a single winding is within 2
- High frequency accuracy, higher than 0.001%.
- Digital frequency synthesis, with higher frequency stability.
- 5000V voltage isolation fully protects the safety of the testing computer.
- Able to load 9 curves at the same time and automatically calculate parameters of each curve and diagnose winding deformations to provide the reference diagnosis conclusion.
- Analysis software has powerful functions, and the software and hardware indicators satisfy the national standard DL/T911-2016/IEC60076-18.
- Software management is humanized with a high degree of intelligence. You only need to click a key to complete all measurements after setting the parameters.
- The software interface is concise and vivid, with clear menus of analysis, save, report export, print, etc.
Main Technical Indicators
- Measuring speed: 1 min-2 min for single-phase winding
- Output voltage: Vpp-25V, adjusting automatically in test
- Output impedance: 50Ω
- Input impedance: 1MΩ (the response channel is built with 50Ω matching resistance)
- Frequency sweepscope: 10Hz-2MHz
- Frequency accuracy: 0.001%
- Frequency sweep manner: linear or logarithmic; frequency scan interval and number of sweep points are freely settable
- Curve display: amplitude-frequency curve
- Width of measuring dynamic range: -100dB~20dB
- Supply voltage: AC100-240V50/60Hz
- Tester weight: only 8kg
- Impedance measurement Voltage: 0.5~240Vac
- Impedance measurement Current: 0.02~10Aac
- Impedance measurement frequency: 50/60Hz
