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HM5010 Sweep Frequency Response Analyzer

Sweep Frequency Response Analyzer applies to the internal structure of fault detection 63kV ~ 500kV power transformers.

◆ Use high-speed, high integration microprocessor to sample and control
◆ The software can adjust the output signal range, the maximum amplitude peak±10V.
◆ Use precision, high stability components, the same phase repeat test, measurement repetition rate >99.5%


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 transformers, coils and its internal structure to be finalized, therefore a transformer coil winding, if the voltage level, method of winding are the same, each coil corresponding parameters (Ci, Li) is determined. Thus the frequency domain response characteristics of each coil also will determine, among 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 windings changes. Thus influent and change the existing frequency domain transformer frequency response feature, that frequency response amplitude changes occur and resonance frequency shift, etc. HM5010 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, regional and response trends, to judge the transformer internal windings 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 fault transformer coil can also judge the degree of fault. Of course, if you save a set of transformer windings original characteristic graph easier for the operation of transformers, maintenance and inspection after the accident analysis and provide a strong basis more accurate.

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


1.Use 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.Hardware cassette mechanism adopts DDS (from America), 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 curve will change obviously if change 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 generating the test results to be Word document.

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

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

10.The device with two measurement system: linear scan and sectional scan.

11.Amplitude-frequency characteristic comply the national technical specifications.

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

      ①conformance is very good

      ②conformance is good

      ③conformance is bad

      ④conformance is very bad 

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


      ②slight deformation

      ③moderate deformation

      ④serious deformation 

13.Automatically generating Word documentconvenient for customers to save and print.

Main technical indicators

Scan mode

Linear scan distribution

Scan measurement range

(1kHz)-(2MHz), 2000 scan frequency point, resolution:1kHz

Sectional scan measurement distribution

Scan measurement range

(0.5kHz)(1MHz), 2000 scan frequency point





Other parameters

Amplitude measurement range


Amplitude measurement accuracy


Scan frequency accuracy


Signal input impedance


Signal output impedance


Co-phase repetitive rate


Instrument dimension


Case dimension







1. Are you manufacture ?

Yeah, we are manufacturer professional in design and produce high voltage test equipment with nearly 20 years experience .


2. When can I get the price ?

We usually quote within 6 hours after get your inquiry . If you are very urgent to get price, please feel free to contact us by Wechat&Whatsapp +86-13720145441 or send us by email, so that we will regard your inquiry priority .


3. Do you supply OEM?

 Of course, we supply OEM.


4. What about leading time for production ?

Honestly , it depends on order quantity and the product . Usually lead time is within 7 working days after deposit .


5. What is your terms of delivery ?

We accept EXW, FOB, CFR, CIF, DDU, etc . You can choose the one which the most convenient and cost effective for you .


6. What’s your payment terms :

TT payment, L/C at sight, Paypal, Western union, etc.


7. How much is the shipping cost and time ?

This is depend on the size and weight of your product, and the method of shipping ( by sea/ by ari/ by Express) and your designated port . Kindly afford us above information to check shipping cost and time for you .


8. What’s the warranty period ?

Our warranty period is one year free and lifelong maintenance .

If produce damage within one year ( not man-made damage ), we will send you spare parts for replacement .  After one year, maintenance is paid service .

9. What kind of Certificate you can provide ?

We can provide CE mark, ISO9001 quality certificate the third part Calibration Certificate (CNAS), factory test report .


10. Do you have Technical Backup to all customers from different countries ?

Surely, we have rich experience engineer to afford professional technical support and quick response to your technical questions .

We are manufacture with rich on site testing experience and understand how to deal with your problems . And our engineer can visit your company to afford technical support face to face if necessary .

Product detaled list 

1.Tablet PC



2.wireless bluetooth



3.Master control unit


4. Testing cable



5.Testing cable clmp

yellow and green


6.Earth clmp



7USB cable



 VCD format


9.Power cable


10.Earth cable



11.Certificate of approval






13.packing box



Factory test and shippment

We will do factory test for every product before devilering, to ensure qualified of the product.

We will pack the product carefully and choose suitbale shippment for client,to ensure the safe arrival.

Installation and commissioning

we provide installation and commissioning assistance to get you up and running. Domestically within China or internationally, we will be there to support you. During the installation, integration and operation of a new test system, a variety of special services are involved. If it ’ s necessary, we can offer oversea commissioning service for our clients.

Service and support

In any fault case of our product, we will arrange engineer to deal with your problem within 24hours

Service guarantee

Contact purchase

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