2
I. Overview
The Sweep Frequency Response Analyzer is used for power transformer with voltage
grade of 6kV and above and other transformers with special purpose. The power
transformer is inevitably vulnerable to impulse of various fault short-circuit current 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 frequency response analysis method according
to national standard DL/T911-2016/IEC60076-18 for electric power industry, i.e. detect
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.
II.Main functions and features
1.Characteristics of transformer windings are measured with frequency sweep method.
Deformations of windings such as distortion, swell or displacement of 6kV and above
transformer are measured by detecting amplitude-frequency response characteristics of
each winding, not requiring lifting of transformer enclosure or disintegration.
2.Quick measuring, measuring of a single winding is within 2 minutes.
3.High frequency accuracy, higher than 0.001%.
4.Digital frequency synthesis, with higher frequency stability.
5.5000V voltage isolation fully protects safety of the testing computer.
6.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.
7.Analysis software has powerful functions and software and hardware indicators satisfy
national standard DL/T911-2016/IEC60076-18.
8.Software management is humanized with high degree of intelligence. You only need to
click one key to complete all measurements after setting of parameters.
9.The software interface is concise and vivid, with clear menus of analysis, save, report
export, print, etc.
10.Use windows platform compatible with Windows 2000/Windows XP/Windows
7/windows 8/Windows10.
11.Use database to save test data and render concise and easy data management.
12.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.
