HCL 800A Transformer Winding Deformation Tester (Frequency Response)

1. Main technical features

- The sweeping frequency method is used to measure the features of transformer winding without hanging the cover and disassembling transformer. Through detecting amplitude-frequency response features of each winding, permanent deformations of 6kV and above transformer such as twist, bump or shift etc will be correctly measured. 

- The measuring speed is fast, just within 3min for single winding. 

- The frequency precision is very high, higher than 0.001%. 

- The sweeping frequency method adopts digital frequency synthesis, and frequency stability is higher.  

- 5000V voltage for isolating, which can ensure the safety of test computer.   

- Be able to load 9 curves at the same time; automatically calculate relevant parameters of each curve; automatically diagnose deformation condition of winding and provide conclusions for reference 

- Both Software and hardware conform to national electric power industry standards - IEC/IEEE/ANSI 

- Management function of the software is strong; for convenient on-site use, measured data is automatically stored and generated into Word test report (office software is needed to be installed in advance) or JPG report. 

- The software management is personalized and highly intelligent. After parameters are well set, only pressing one button can complete all measuring work.

- Simple and user-friendly software interface; clear menus, such as analyze, store, report output and print etc 

- Easy to wiring on site and use

2. Main technical parameter

- Measuring speed: 1min - 3min for single-phase winding 

- Output voltage: Vpp-10V, automatic adjustment during the test

- Output impedance : 50Ω

- Input impedance: 1MΩ (50Ωmatch resistor is internally installed in the response channel)

- Sweeping frequency range: 50Hz－2MHz or 50Hz－10MHz (Optional)

- Frequency precision: 0.001%

- Sweeping frequency method: linearity or logarithm, sweeping frequency interval and point number can be set at random 

- Curve display: amplitude-frequency curve (phase frequency curve, optional)

- Measuring DR width: －100dB～20dB

- Supply voltage: AC220V±10%

- Test current via impedance method: 0-10A

- Weight of main machine: 3kg

3. NOTES for model selection: 

Different models are determined according to the standards below: 

- Sweeping frequency range 2M/10M

- Amplitude-frequency curve/phase curve 

- Split machine/all-in-one machine

- Single-phase/three-phase automatic test

- Frequency response method/the combination of frequency response method and impedance method 

The product can be personalized to the client's exact requirements.