1、 Overview of KF-6212 Transformer Winding Deformation Tester

After the completion of transformer design and manufacturing, its internal structure and various parameters remain basically unchanged, so the frequency domain response of each coil is also determined accordingly. For transformers with normal windings, the coupling degree of the three-phase frequency domain response curve is basically the same;

When a transformer experiences inter turn or inter phase short circuits during testing, short circuits or other faults during operation due to electromagnetic tension causing coil displacement, and collisions during transportation causing relative coil displacement, these factors will cause changes in the distribution parameters of the transformer and its frequency domain response. The degree of deformation of the transformer can be determined based on the frequency domain response curve;

Based on the above ideas and advanced measurement technology, our company has designed a transformer winding deformation analyzer, which can accurately draw the frequency domain response curves of each phase. By comparing the horizontal and vertical measurement curves, the degree of transformer deformation can be accurately determined.

4. This instrument complies with the standard DL/T911 2004 "Frequency Response Analysis Method for Winding Deformation of Power Transformers".

2、 Technical characteristics of KF-6212 transformer winding deformation tester

1. Adopting advanced DDS frequency scanning technology;

2. Adopting dual power supply: AC 220V ± 10% mains power supply, internal power supply 6V5AH battery;

3. Adopting high-speed and highly integrated microprocessor design;

4. The amplitude of the output sine wave can be set through software;

5. Dual channel 16 bit AD sampling;

6.8-inch color touch screen with adjustable brightness;

7. Up to 120 sets of measurement data can be saved for viewing or uploading to a PC at any time;

8. There is powerful upper computer software for curve analysis, printing, and generating Word documents;

9. USB 2.0 interface, supporting data upload and online testing;

10. Host size: 35cmX21cmX21cm;

11. Host weight: approximately 5kg.

3、 Technical specifications of KF-6212 transformer winding deformation tester

1. Set up 6 different scanning methods:

Linear 1K-1000kHz_1.0 Step 1kHz 1000 points

Linear 1K-1000kHz, 0.5 step 0.5kHz, 2000 points

Linear 1K-2000kHz_1.0 Step 1kHz 2000 points

Linear 1K-2000kHz, 0.5 step 0.5kHz, 4000 points

Segmented 100HZ-1000kHz 1440 points

Segmented 100HZ-2000kHz 2440 points

2. Measurement range: (-100dB) - (+20dB)

3. Measurement accuracy: 0.1dB;

4. Scanning frequency accuracy: 0.01%;

5. Signal input impedance: 1M Ω;

6. Signal output impedance: 50 Ω;

7. Same phase test repetition rate: 99.5%;