HVHIPOT GDRB-E Sweep Frequency Method Transformer Winding Deformation Tester

• After-sales Service: Yes
• Warranty: 1 year
• Type: Universal Testing Machine
• Accuracy Grade: 0.005%
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Model NO.: GDRB-E
• Display: Digital
• Control: Computer Control
• Weight: 0-100Kg
• Power Source: AC220V
• Test speed: single phase winding 1-2 mins.
• Output voltage: 20Vpp
• Output impedance: 50Ω
• Transport Package: Standard Export Box
• Specification: ISO, SGS
• Trademark: HV Hipot
• Origin: Wuhan, China

Product Description

GDRB-E Sweep Frequency Method Transformer Winding Deformation Tester 


GDRB-E Transformer Winding Deformation Tester is used to test transformer winding deformation over 6kV of power transformer and other special purpose transformers. Power transformer in operation or transport process will inevitably suffer from various kinds of fault due to short circuit current impact, or physical force under the effects of the strong short circuit current. This way, transformer windings may lose stability, leading to permanent deformation like partial distortion, bulge or displacement, which will seriously affect the safe operation of the transformer. According to the national power industry standard DL/ T911-2016, the frequency response analysis method is adopted to measure the winding deformation of the transformer. It is used to detect the amplitude-frequency response characteristics of each transformer winding and conduct longitudinal or transverse comparison of the test results. According to the variation degree of amplitude-frequency response characteristics, the possible deformation of the transformer winding is determined.
 

Features

1. Sweep frequency method is adopted to measure the winding characteristics of the transformer. In the case of not lifting the transformer windlass cover or disassembling the transformer, the amplitude and frequency response characteristics of each winding are detected to accurately measure the distortion, bulge or displacement of the transformer (6kV and above) winding.
2. The measuring speed is fast, the measuring time for a single winding is less than 2 minutes.
3. The frequency accuracy is higher than 0.005%.
4. Digital frequency synthesis, higher frequency stability.
5. 5000V voltage isolation, fully protecting the security of the test computer.
6. The software and hardware indexes meet the national standards DL/T911-2016.
7. Software interface is simple and intuitive, system menus are clear.
8. Windows-based platform, compatible with Windows 2000/ Windows XP/Windows7/ Windows 8.
9. Database is used for data storage and better management.
10. Nine curves can be loaded at the same time, the relevant parameters of each curve can be calculated automatically. The deformation of the winding can be diagnosed automatically and conclusion is given.
11. Powerful software management. Measurement data is automatically saved and exported to generate Word version of the test report (Office software is required) or JPG picture report.
12. User-friendly software. Multiple choices are available for test conditions, no need to input many parameters on-site, more convenient to use.
13. Highly intelligent software. After the input and output signals are connected, all the measurements are completed by pressing only one button.
14. The software interface is simple, intuitive and practical.

Specifications

1. Test speed: single phase winding 1-2 mins.
2. Output voltage: 20Vpp
3. Output impedance: 50Ω
4. Input impedance: 1MΩ ( Built-in 50Ω matching resistor in response channel)
5. Frequency range: 100Hz~2MHz
6. Frequency accuracy: 0.005%
7. Sweep frequency method: linear or exponent, sweeping interval and points can be set arbitrarily.
8. Curve display: amplitude-frequency curve
9. Dynamic measurement range: -100~20dB
10. Measurement accuracy: better than ±0.5db
11. Power supply: AC220V±10%
12. Weight: 3.6 kg (main unit)
13. Size: 272*258*95mm