Specifications
Brand Name :
HNMC
Model Number :
SFRA20
Place of Origin :
China
MOQ :
1 pc
Price :
Negotiable
Payment Terms :
L/C, T/T
Supply Ability :
200 Pcs per month
Delivery Time :
20-25 Days
Packaging Details :
Carton package
Test Speed :
1 min or 2 min
Output impedance :
50Ω
Frequency scan range :
10HZ-20MHZ
Frequency accuracy :
0.001%
Model :
SFRA20
Single Winding Time :
within 2 minutes
Description

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 238mm*184mm*40mm
Net weight: 2.45Kg

Handheld Sweep Frequency Response Analyser , 20MHz Frequency Response Analyzer

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Handheld Sweep Frequency Response Analyser , 20MHz Frequency Response Analyzer

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Brand Name :
HNMC
Model Number :
SFRA20
Place of Origin :
China
MOQ :
1 pc
Price :
Negotiable
Payment Terms :
L/C, T/T
Contact Supplier
Handheld Sweep Frequency Response Analyser , 20MHz Frequency Response Analyzer
Handheld Sweep Frequency Response Analyser , 20MHz Frequency Response Analyzer
Handheld Sweep Frequency Response Analyser , 20MHz Frequency Response Analyzer

Zhengzhou Great Electric Co.,Ltd.

Active Member
5 Years
henan, zhengzhou
Since 2009
Business Type :
Manufacturer, Distributor/Wholesaler, Seller
Total Annual :
100-500
Employee Number :
8 ~10
Certification Level :
Active Member
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