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Handheld Sweep Frequency Response Analyser , 20MHz Frequency Response Analyzer

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Address: No.1207-1, Building #1, the National University Sci-Tech Park of Henan Province, No.11 Changchun Road, Zhengzhou, Henan 450000

Contact name:Tony Han

Zhengzhou Great Electric Co.,Ltd.

Handheld Sweep Frequency Response Analyser , 20MHz Frequency Response Analyzer

Country/Region	china
City & Province	zhengzhou henan
Categories	Laser Pointers

Product Details

20MHz-Portable Sweep Frequency Response Analyzer

System Introduction

The transformer winding deformation tester 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 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.

Main 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 .

8. Software management is humanized with high degree of intelligence. You only need to click a 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.

Technical Index

Item	Technical Index
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 scan scope	10Hz-20MHz
Frequency accuracy:	0.001%
Frequency scan manner:	linear or logarithmic, frequency sacn interval and number of sweep points are freely settable
Curve display	amplitude-frequency curve (phase-frequency curve, optional)
Width of measuring dynamic range	-120dB~20dB
Supply voltage:	AC100-240V 50/60Hz (use DC12V Adapater recommend)
Dimension	238mm184mm40mm
Net weight:	2.45Kg