Sweep Frequency Response Tester

RBX-H tester based on the measurement of the windings characteristic parameters inside the transformer, the tester using the world's developed countries 'sound internal fault frequency response analysis (FRA) method, able to make an accurate internal transformer fault judgment.

After the completion of the design and manufacture of transformers, coils and the internal structure to be finalized, therefore a transformer coil winding, if the voltage level, and method of winding are the same, each coil's corresponding parameters (Ci, Li) is determined. Thus the frequency domain response characteristics of each coil also will determine, whether the corresponding three-phase coil has a comparable frequency spectrum.

It occurs inter-turn, phase short circuit during the test or collision during transport, causing the coil relative displacement and during operation under short circuit and fault conditions due to the tension caused by the electromagnetic, coil is deformed, it will make the distribution parameters of the transformer winding changes. Thus, it influences and changes the existing frequency domain transformer frequency response feature, that frequency response amplitude changes occur and resonance frequency shift, etc. RBX-H applies to the internal structure of fault detection 63kV ~ 500kV power transformers.

FRA quantization process transformer internal winding parameters response changes in the different frequency domain, according to the value of the change magnitude, frequency response magnitude change, and regional and response trends, to judge the transformer internal winding degree of change, in turn, can determine whether the transformer has been severely damaged, need to overhaul measurement.

For the running transformer, regardless of whether there is a saved frequency domain feature picture in the past, by comparison, the difference between fingerprints of the fault transformer coil can also judge the degree of fault. Of course, if you save a set of transformer winding original characteristic graphs easier for the operation of transformers, maintenance, and inspection after the accident analysis and provides a strong basis more accurate.

FRA from the laptop and chip microprocessor precision measurement systems, is compact, and easy to operate, with a comprehensive test analysis function.

RBX-H Transformer SFRA analyzer operation video 

1. Use a high-speed, high-integration microprocessor to sample and control.

2. Use USB to connect the notebook PC and device.

3. Communication wireless Bluetooth interface between the laptop and instruments.

4. The hardware cassette mechanism adopts DDS (from America), and can correctly detect the breakdown distortion, swell, shift, tilt, inter-turn short circuit deformation, and contacting short circuit inter-phase.

5. High-speed, dual channel, 16-bit A/D sampling (the wave from the curve will change obviously if the tapping switch during the field tests.).

6. The software can adjust the output signal range, the maximum amplitude peak±10V.

7. The computer automatically generates the test results to be Word document.

8. Use precision, high stability components, the same phase repeat test, and measurement repetition rate >99.5%.

9. Finished circuit boards, surface specially treated with anti-water pollution and harmful gases.

10. The device has two measurement systems: linear scan and sectional scan.

11. Amplitude-frequency characteristics comply with the national technical specifications.

12. Test data automatic analysis system, horizontal compare the similarity of A,B ,C, the results as below:

conformance is very good

conformance is good

conformance is bad

conformance is very bad

Vertical compare A-A,B-B,C-C, obtain the original data to compare the winding deformation with the test data in the same phase, the results as below:

normal

slight deformation

moderate deformation

serious deformation

13. Automatically generating Word document, convenient for customers to save and print.

accessory

accessory

Panel

test

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2. Payment: Choose payment terms and payment way you convenient
3. Sale service: 24-hour online contact, Choose the right model of equipment according to your request, give the best offer, support customization
4. Warranty period: All machine quality guarantees for one year and lifetime technical support for you. Online response to customers' technical problems.

Our service

01

Pre-sale service

Conduct product consultation, product promotion, and marketing activities, and technical support for customer needs.

02

Delivery service

Packing with wooden cases, provide different solutions of shipping way, accept different payment way. Save shipping cost and make sure the products arrive well.

03

After-sales service

Installation and commissioning of specific products; Respond to consumer questions, answer consumer inquiries, and deal with consumer comments.

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