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GDRZ-902 Transformer SFRA Sweep Frequency Response Analyzer

GDRZ-902 Transformer SFRA Sweep Frequency Response Analyzer is a powerful and sensitive method to evaluate the mechanical integrity of core, windings and clamping structures within power transformers by measuring their electrical transfer functions over a wide frequency range. SFRA is a proven method for frequency measurements.
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  • GDRZ-902

  • GOLD

  • 9030849000

GDRZ-902 


Transformer SFRA Sweep Frequency Response Analyzer


Transformer Sweep Frequency Response Analyzer


Introduction


  • The structure and reference of the transformer is fixed after been made, Therefor, the frequency response of each winding will be almost the same normally.

  • Some case such as cut off between circles or phases in experience, cut off or winding moved for the pull of power in running, winding moved for hit in transportation, could change the reference of the transformer ,of which the frequency response will be changed, we could detect the deformation according to the frequency response curve.

  • GDRZ-902 Transformer SFRA Sweep Frequency Response Analyzer could draw the frequency response curve accurately. Then we compare the curves horizontally or vertically to detect the deformation of the transformer.

  • GDRZ-902 Transformer SFRA Sweep Frequency Response Analyzer is conformed to the standard of DL/T911 2004. 


Application


1. During routine test of power transformer maintenance, our GDRZ-902 Transformer Sweep Frequency Response Analyzer SFRA is used to check the frequency response data of transformer winding.

2. When the power transformer leaves the factory, our GDRZ-902 Transformer SFRAt is used to measure the winding frequency response data of the transformer as the characteristic fingerprint information of the transformer.

3. After the power transformer is short-circuited, our GDRZ-902 Transformer Sweep Frequency Response Analyzer is used to measure the frequency response data of the power transformer and compare it with the test data before the short-circuit to check whether the transformer windings are deformed.


Specifications


GDRZ-902 Transformer SFRA Sweep Frequency Response Analyzer
Two different sweep modes: Linear sweep, Section sweep
Linear sweep 0.5KHZ-1MHZinterval 0.5KHZ 2000 dots





Section sweep

50HZ-100HZinterval 2HZ25 dots
100HZ-1KHZinterval 20HZ45 dots
1KHZ -10KHZinterval 50HZ180 dots
10KHZ-100KHZinterval 0.2KHZ 450 dots
100KHZ – 500KHZ interval 0.5KHZ 800 dots
500KHZ – 1000KHZ interval 1KHZ500 dots
Test range (-100dB) - (+20dB)
Test accuracy 0.1dB
Frequency accuracy <0.01%
Signal input impedance >1M Ω
Signal output impedance 50 Ω


Main Features


  • No need to connect to a laptop, a single machine can complete the frequency response transformer winding deformation test.

  • The sweep frequency range can reach 10HZ-10MHZ, the output frequency is stable, and the response attenuation multiplier has high measurement accuracy.

  • According to the test results, automatic production of standardized Word test reports.

  • Equipped with a micro printer to print test curves and data.

  • Automatic evaluation of test results in accordance with IEC60076-18.

  • 7-inch large screen touch screen, full English menu interface, simple operation.


Transformer Sweep Frequency Response Analyzer (2)

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Contact Person: Christine Gou

Whatsapp/Wechat: +86 15123029885

Mobile: +86 15123029885

E-mail: gold05@hy-industry.com



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