The M5400 detects mechanical failure or movement of windings due to short circuits, mechanical stresses or transportation. Use it to ensure transformer performance, reduce maintenance cost, and increase the service life of transformers.
The M5400 uses Sweep Frequency Response Analysis, a proven technique for making accurate and repeatable measurements. Pioneered by Doble the sweep approach has become the industry standard and is the preferred method for making frequency domain measurements.
Here's how SFRA works: The M5400 sends an excitation signal into the transformer and measures the returning signals across a broad frequency range. By comparing this response to baseline and other results (such as from similar units), you can identify deviations and confirm internal mechanical problems.
Identifies problems such as:
- Core movement
- Winding deformation and displacement
- Faulty core grounds
- Partial winding collapse
- Hoop buckling
- Broken or loosened clamping structures
- Shorted turns and open windings
Specifications
| Excitation Source: |
| Channels | 1 |
| Frequency Range | 10 Hz-25 MHz |
| Output Voltage | 20 V peak-to-peak at 50 Ohms |
| Output Protection: | Short circuit protected |
| Source Impedance | 50 Ohms |
| Measurement Channels: |
| Channels: | 2 |
| Sampling: | Simultaneous |
| Frequency Range: | 10 Hz – 25 MHz |
| Max. Sampling rate: | 100 MS/s |
| Input Impedance: | 50 Ohms |
| Data Collection: |
| Test Method: | Sweep Frequency |
| PC Comm: | Ethernet USB/Serial |
| Frequency Range: | 10 Hz – 25 MHz |
| Number of Points: | 1000 points (Default) Up to 1800 points (Extended Range) |
| Point Spacing: | 1.2 % Logarithmic |
| Dynamic Range: | >90 dB |
| Repeatability: | ±1 dB to –80 dB |
| IF Bandwidth: | < 10% of active frequency |
| Data Display: |
| Scaling: | Linear/Log |
| Frequency Range: | 10 Hz – 25 MHz, user defined within frequency range |
| Plotting: | Frequency vs. Magnitude / Phase |
| Analysis: | Difference, Sub-band Cross-Correlation |
| Physical Specifications: |
| Dimensions: | 18.2 x 13.4 x 6.7 inch
46.2 x 34.0 x 17.0 cm |
| Weight: | 13.1 lbs |
| Power Supply: | 100-240V AC |
| Temperature: | 0° to 50° C operating, -25° to + 70° C storage |
| Relative Humidity: | 0% to 95 % non condensing |