Megger FRAX101 Sweep Frequency Response Analyzer
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Introduction of Megger FRAX101
The Megger FRAX101 Sweep Frequency Response Analyzer is a state-of-the-art diagnostic tool specifically designed for the precise assessment of transformers’ mechanical and electrical integrity. It utilizes Sweep Frequency Response Analysis (SFRA), a proven technique that allows for the detection of potential issues such as winding displacements, core deformation, and other structural faults within transformers that might not be evident through conventional testing methods.
The FRAX series of Sweep Frequency Response Analyzers (SFRA) is designed to detect mechanical and electrical changes in the core and winding assembly of power transformers. For over a decade, major utilities and service companies have relied on the FRA method, which is recognized in international standards. This method is straightforward to execute and captures a unique fingerprint of the transformer, providing valuable insights into its condition.
Megger FRAX101 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
- Wireless communication (FRAX 101)
specifications
Megger FRAX101 Specifications
Specification | FRAX 101 |
Application Field | Medium and high-voltage substations and industrial environments |
Operating Temperature | -20°C to +55°C (-4°F to +131°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 | 11-16 V DC |
AC Power Supply | – |
Internal Battery | 49 Wh/4.4 Ah (optional) |
Instrument Dimensions | 410 x 340 x 205 mm (16.1” x 13.4” x 8”) |
Transport Case Dimensions | 520 x 460 x 220 mm (20.5” x 18.1” x 8.7”) |
Instrument Weight | 1.95 kg (4.29 lbs) with battery |
Case and Accessories Weight | 15 kg (33 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 | < -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 | Yes |
Bluetooth | Yes |
FRAX Software | Yes |
Standards/Guides Compliance | IEC 60076-18, IEEE C57.149, DL/T 911, CIGRE TB 342 |
Ground Loop Detection | Yes |