EN
GDF-431 3-in-1 Power Fault Imager (UV Corona + IR Thermometry + SF6 Leak Detection)
GDF-431 Digital Intelligent 3-in-1 Power Fault Imager with Integrated Solar-Blind UV Corona Detection, IR Thermometry and SF6 Gas IR Leak Detection, Gas Enhanced Mode, Dual Display, for Power Substation and Transmission Line Comprehensive Inspection.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDF-431 is a revolutionary, all-in-one comprehensive power fault detection instrumentexclusively designed for non-contact, real-time detection of multiple types of faults in electrical power systems. It fully complies with DL/T 664-2016, DL/T 1432.1-2016 and DL/T 846.6-2018 standards, integrating three core detection technologies: solar-blind ultraviolet corona detection, high-precision infrared thermometry and SF6 gas infrared leak detection into a single handheld device.
The instrument features a high-performance solar-blind UV detector that only responds to the 240-280nm wavelength range, completely immune to sunlight interference, and can clearly detect weak corona and partial discharge signals. Its advanced non-cooling infrared focal plane detector provides accurate temperature measurement from -40℃ to 350℃, with a dedicated gas-enhanced infrared mode that can detect extremely small SF6 gas leaks.
Specifications
| Parameter | Specification |
|---|---|
| System Parameters | |
| Compliance Standard | DL/T 664-2016, DL/T 1432.1-2016, DL/T 846.6-2018, IEC 60480-2004 |
| Integrated Functions | UV corona detection, IR thermometry, SF6 gas leak detection |
| Operating System | Embedded real-time operating system |
| Display | 3.5-inch rotatable LCD touch screen + high-resolution electronic viewfinder |
| Data Storage | 32GB internal + TF card expansion |
| Data Transmission | USB 2.0, Bluetooth 4.0, WiFi, HDMI |
| UV Corona Detection Parameters | |
| Response Wavelength | 240nm ~ 280nm (solar-blind) |
| Detection Distance | Up to 50 meters (corona discharge) |
| Photon Counting | Yes (quantitative discharge intensity evaluation) |
| IR Thermometry Parameters | |
| Detector Type | Uncooled microbolometer FPA |
| Temperature Range | -40℃ ~ 350℃ |
| Measurement Accuracy | ±2℃ or ±2% of reading, whichever is greater |
| Automatic Tracking | Global highest/lowest temperature |
| SF6 Leak Detection Parameters | |
| Detection Mode | Gas-enhanced infrared mode |
| Minimum Detectable Leak Rate | 1×10⁻⁶ atm·cc/s |
| Detection Distance | Up to 20 meters |
| Visible Light Parameters | |
| Sensor Type | CMOS |
| Resolution | 5 megapixels |
| Power Supply | |
| Battery Type | Built-in lithium-ion battery |
| Battery Life | ≥4 hours continuous operation |
| Charging | Type-C fast charging |
| Charging Time | ~2 hours (full charge) |
| Physical Parameters | |
| Dimensions | 240×160×80mm (L×W×H) |
| Weight | ~2.8kg (including battery) |
| Housing | Rugged engineering plastic |
| Protection Grade | IP54 (dustproof and splashproof) |
| Drop Resistance | 1.5 meters |
| Operating Temperature | -10℃ ~ +50℃ |
| Storage Temperature | -20℃ ~ +60℃ |
| Humidity | ≤90% RH (non-condensing) |
Applications
Core Test Objects
- Substation equipment: Transformers, circuit breakers, disconnect switches, busbars, transformers, surge arresters
- Transmission lines: Overhead lines, insulators, hardware fittings, cable terminals and joints
- SF6 gas equipment: GIS, circuit breakers, transformers, gas cylinders, pipelines
- Distribution equipment: Switchgears, ring main units, distribution transformers
Typical Usage Scenarios
- Power companies: Substation comprehensive inspection, transmission line patrol, SF6 equipment regular maintenance
- Power engineering companies: Equipment acceptance test, construction quality inspection
- SF6 equipment manufacturers: Factory quality control, after-sales service
- Third-party testing institutions: Power equipment performance testing, safety assessment
- Industrial enterprises: Internal power system inspection and maintenance
Advantages
Compliance with International Power Standards
Fully meets DL/T 664, DL/T 1432 and DL/T 846 Chinese power industry standards → test results are recognized by power systems worldwide
Industry-Leading 3-in-1 Integrated Design
One instrument replaces three traditional devices (UV imager, IR thermometer, SF6 leak detector) → reduces equipment investment by 60%, improves inspection efficiency by 300%
Solar-Blind UV Detection Technology
Completely immune to sunlight interference, can detect weak corona discharge in bright daylight → solves the problem of daytime UV detection
Dedicated Gas-Enhanced Infrared Mode
Optimized for SF6 gas absorption spectrum, can detect extremely small gas leaks → improves SF6 leak detection sensitivity by 10 times compared to ordinary IR cameras
Innovative Dual-Display System
Rotatable LCD screen + high-resolution viewfinder, ensures clear visibility in all lighting conditions → ideal for outdoor on-site inspections
FAQ
Q: What is the advantage of GDF-431 compared to using separate UV, IR and SF6 detectors?
A:
- Efficiency: Completes three types of fault detection in a single scan, improving inspection efficiency by 300%
- Cost: Reduces equipment investment by 60% compared to purchasing three separate instruments
- Convenience: Only one instrument to carry and operate, greatly reducing the burden on inspectors
- Accuracy: Multi-mode fusion technology accurately correlates different types of faults, improving diagnostic accuracy
Q: Can it detect corona discharge in bright sunlight?
A: Yes. GDF-431 adopts solar-blind UV detection technology that only responds to the 240-280nm wavelength range, which is completely absorbed by the ozone layer in sunlight. Therefore, it is completely immune to sunlight interference and can clearly detect weak corona discharge even in bright direct sunlight.
Q: How sensitive is the SF6 gas leak detection function?
A: GDF-431 is equipped with a dedicated gas-enhanced infrared mode optimized for the SF6 gas absorption spectrum. It can detect SF6 gas leaks as small as 1×10⁻⁶ atm·cc/s from up to 20 meters away, which is 10 times more sensitive than ordinary infrared cameras.
Q: Can it work in strong sunlight?
A: Yes. GDF-431 features an innovative dual-display system with a high-brightness rotatable LCD screen and a high-resolution electronic viewfinder. The viewfinder is specially designed for strong sunlight conditions, providing clear and sharp images even in direct sunlight.
