Megger FRAX 150 Sweep Frequency Response Analyzer
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Megger FRAX 150
The Megger FRAX 150 Sweep Frequency Response Analyzer (SFRA) is a cutting-edge diagnostic instrument designed for comprehensive testing and analysis of power transformers. Utilizing the Sweep Frequency Response Analysis (SFRA) technique, the FRAX 150 is capable of detecting mechanical and electrical changes in the core, windings, and insulation of transformers, providing invaluable insights into their condition and integrity.
The FRAX series functions by applying a sweep frequency test signal to the transformer and analyzing its response. This process generates a unique fingerprint that, when compared to a reference fingerprint of the same transformer, can uncover various faults. These faults include winding deformations and displacements, shorted or open windings, loose or broken clamping structures, core connection issues, core movement, and hoop buckling.
Megger FRAX 150 Key Features
- Highest accuracy in the industry.
- High dynamic range to cover all your testing needs
- Fulfills international standards for SFRA measurements
- Advanced analysis and decision support built into the software. FRAX 150 with built in PC and touchscreen
- Imports data from other FRA test sets
- Continuity control of ground connections
specifications
Megger FRAX 150 Specifications
| Specification | FRAX 150 |
| Application Field | Medium and high-voltage substations and industrial environments |
| Operating Temperature | -5°C to +50°C (23°F to +122°F) |
| Storage Temperature | -30°C to +70°C (-22°F to +158°F) |
| Humidity | < 95% RH, non-condensing |
| CE Marking | EMC 2004/108/EC, LVD 2006/95/EC |
| DC Power Supply | – |
| AC Power Supply | 90 – 264 V AC, 47 – 63 Hz |
| Internal Battery | No |
| Instrument Dimensions (HxWxD) | 410 x 340 x 205 mm (16.1” x 13.4” x 8”) |
| Transport Case Dimensions (HxWxD) | No |
| Instrument Weight | 8.5 kg (18.7 lbs) |
| Case and Accessories Weight | Accessories 10 kg (22 lbs) |
| Test Method | Sweep frequency (SFRA) |
| Frequency Range | 0.1 Hz – 25 MHz, user selectable |
| Frequency Resolution | 0.01% |
| Frequency Accuracy | 0.01% (measurement error) |
| Level Resolution | 0.001 dB |
| Number of Points | Default 1046, Up to 32,000 points, user selectable |
| Measurement Time | Default 64 s, fast setting, 37 s (20 Hz – 2 MHz) |
| Points Spacing | Logarithmic, linear, or both |
| Sweep Settings | Individual settings for customer defined frequency bands. Linear and logarithmic scale or combination of both |
| Internal Noise Level (20 Hz to 2 MHz) | < -140 dB |
| Dynamic Range | >150 dB |
| Inaccuracy | ±0.1 dB from +10 dB down to -40 dB ±0.5 dB from – 41 dB down to -100 dB |
| IF Bandwidth | User selectable, default <10% |
| USB Ports | 4 type A, 1 type B |
| Bluetooth | No |
| FRAX Software | Yes |
| Standards/Guides Compliance | IEC 60076-18, IEEE C57.149, DL/T 911, CIGRE TB 342 |
| Ground Loop Detection | Yes |
| Analog Output Channels | 1 |
| Compliance Voltage | 0.20 – 24 V p-p |
| Applied Voltage at 50 Ω | 0.1 – 12 V p-p |
| Output Impedance | 50 Ω |
| Analog Input Channels | 2 |
| Sampling Rate | 100 MS/s |
| Data Analysis and Management | Cross correlation according to DL/T 911 and NCEPRI as well as customizable. Magnitude difference |
| Data Import Formats | Omicron (.fra, .tfra), Doble (.sfra, .sfrx), CIGRE TB342 .xfra, IEC 60076-18 .xml |
| Data Export Formats | CIGRE TB342 .xfra, IEC 60076-18 .xml, Doble .sfra, .csv, .txt |
| Built-in PC | Yes |
| Operating System | Windows embedded |
| Touchscreen | 12” |
| Memory | 1000 records in internal memory |
| External Storage | USB stick |
Datasheet
Bench Multimeters