Introduction
The structure and reference of the transformer is fixed after been made, Therefor, the frequency response of each winding will be almost the same normally.
Some case such as cut off between circles or phases in experience, cut off or winding moved for the pull of power in running, winding moved for hit in transportation, could change the reference of the transformer ,of which the frequency response will be changed, we could detect the deformation according to the frequency response curve.
Our company has designed the winding deformation tester base on the idea and the advanced technique.
GDRZ-902 Transformer SFRA Sweep Frequency Response Analyzer could draw the frequency response curve accurately. Then we compare the curves horizontally or vertically to detect the deformation of the transformer.
GDRZ-902 Transformer SFRA Sweep Frequency Response Analyzer is conformed to the standard of DL/T911 2004.
| 1 | Two different sweep modes: Linear sweep, Section sweep | |
| 2 | Linear sweep | 0.5KHZ-1MHZinterval 0.5KHZ 2000 dots |
| 3 | Section sweep | 50HZ-100HZinterval 2HZ25 dots |
| 100HZ-1KHZinterval 20HZ45 dots | ||
| 1KHZ -10KHZinterval 50HZ180 dots | ||
| 10KHZ-100KHZinterval 0.2KHZ 450 dots | ||
| 100KHZ - 500KHZ interval 0.5KHZ 800 dots | ||
| 500KHZ - 1000KHZ interval 1KHZ500 dots | ||
| 4 | Test range | (-100dB) - (+20dB) |
| 5 | Test accuracy | 0.1dB |
| 6 | Frequency accuracy | <0.01% |
| 7 | Signal input impedance | >1M Ω |
| 8 | Signal output impedance | 50 Ω |
