Transformer Sweep Frequency Test SFRA

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Transformer Sweep Frequency Test SFRA

HM5010 sweep response analyzer is suitable for power transformers rated at 66 kV and above, as well as other transformers designed for special applications. During operation and transportation, power transformers are inevitably subjected to various fault short-circuit currents or physical impacts. Under the powerful electromagnetic forces generated by short-circuit currents, the transformer windings may lose stability, leading to permanent deformations such as localized distortion, bulging, or displacement, which severely compromise the safe operation of the transformer.

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Description

Technical Parameters

main Characteristics

Characteristics of transformer windings are measured with frequency sweep method. Deformations of windings such as distortion, swell or displacement of 66kV and above transformer are measured by detecting amplitude-frequency response characteristics of each winding, not requiring lifting of transformer enclosure or disintegration.
Quick measuring, measuring of a single winding is within 2 minutes.
High frequency accuracy, higher than 0.001%.
Digital frequency synthesis, with higher frequency stability.
5000V voltage isolation fully protects 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 software and hardware indicators satisfy national standard DL/T911-2016/IEC60076-18.
Software management is humanized with high degree of intelligence. You only need to click one key to complete all measurements after setting of parameters.
The software interface is concise and vivid, with clear menus of analysis, save, report export, print, etc.

Main Technical Indicators

1, Using the advanced technical of DDS;

2, Using the high speed and advanced microprocessor to design;

3, Using double channels of AD chip of 16 bits;

4, With seven inch LCD touch screen of which the brightness can be adjusted;

5, With thermal printer of which the print thick can be adjusted;

6, It could store one hundred and twenty groups of data, which could be read to current screen or upload to the PC;

7, With PC software using which we could upload data ,test, analyze data, print data, or create word document;

8, Using USB2.0 to connect to the device;

9, Tester dimension:31cm X 15cm X 15cm;

10, Weight:4.0KG.

Maintenance FAQs

Q: Is maintenance difficult?
A: HM5010 is very simple and hassle-free; users only need to perform basic maintenance without disassembling the unit.

Q: Is the data accurate and reliable?
A:Yes, it is accurate. The frequency accuracy reaches 0.001%, meeting the national standard DL/T911-2016 and the international standard IEC60076-18.

Q: What is the test range and applicable voltage?

A:Power transformers rated at 66 kV and above. Frequency scan range: 10 Hz to 2 MHz.

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