Sweep Frequency Response Analyzer
Product Introduction
The transformer winding deformation tester is based on the measurement of the characteristic parameters of the internal winding of the transformer, and uses the internal fault frequency response analysis (FRA) method currently being developed in developed countries to accurately determine the internal faults of the transformer.
Technical Features
1. High-Performance Core Control – Utilizes a high-speed, highly integrated microprocessor for precise data acquisition and control.
2. USB Communication – Supports direct USB interface connection to laptops for seamless data communication.
3. Wireless Bluetooth Connectivity – Enables wireless data exchange between instrument and laptop for flexible field operation.
4. Advanced DDS Sweep Technology – Adopts digital frequency-sweep technology (USA) to accurately diagnose winding distortion, bulging, displacement, tilting, inter-turn short circuits, and inter-phase faults.
5. High-Resolution Dual-Channel Acquisition – Features dual-channel 16‑bit A/D with high-resolution dB‑value measurement for superior signal accuracy.
6. Software-Adjustable Output – Output amplitude adjustable via software, with peak output up to 10 V.
7. Automated Reporting – System automatically generates test reports in electronic Word format.
8. High Stability & Repeatability – Built with precision, high‑stability components; measurement repeatability exceeds 99.5% for the same winding phase.
9. Robust Hardware Design – Finished circuit boards are specially surface‑treated for resistance to moisture and corrosive gases.
10. Flexible Measurement Modes – Combines linear and segmented frequency‑sweep modes, compatible with mainstream domestic technical methodologies.
11. Compliant & Adaptable Display – Meets national technical standards for amplitude‑frequency characteristics; supports both linear and logarithmic frequency axes, allowing users to select the most suitable format for report printing.
المعايير الفنية
| Linear frequency sweep measurement range | (1kHz)～(1MHz) |
| Segmented sweep frequency measurement range | (0.5kHz)～(1MHz) |
| (0.5kHz)～(10kHz) | |
| (10kHz)～(100kHz) | |
| (100kHz)～(500kHz) | |
| (500kHz)～(1000kHz) | |
| Range of amplitude | (-100dB)～(+20dB) |
| Accuracy of amplitude measurement | +20dB～-60dB;±1dB |
| -60dB～-100dB;±2dB | |
| Sweep accuray | 0.01% |
| مقاومة إدخال الإشارة | 1 ميجا أوم |
| مقاومة إخراج الإشارة | 50Ω |
| In phase test repetition rate | 99.5% |
| أبعاد | 300×340×120mm3 |
| Dimensions of Aluminum Alloy Packaging Box | 310×400×330mm3 |
| وزن | 10 كجم |
Main application scenarios
Handover acceptance test: Before the new transformer is put into operation, establish the original fingerprint spectrum and impedance data of the winding as the basis for future comparison.
Post fault diagnosis: After the transformer is subjected to output short circuit or near-field short circuit impact, it is immediately tested to determine whether the winding is damaged and whether it can be put back into operation.
Inspection after major overhaul or transportation: Verify whether the mechanical structure of the winding of the transformer remains in good condition after long-distance transportation or major overhaul of the suspension cover.
In operation status assessment: Regular physical examinations are conducted on transformers that have been in operation for a long time or have a history of abnormal vibration to evaluate their health status.
