Өнімге кіріспе
With China's substation voltage levels continuously increasing, SF6 high-voltage circuit breakers are witnessing approximately 15% annual growth in the power sector, having become the predominant insulation and arc-quenching medium for high-voltage, ultra-high-voltage and UHV switchgear. However, as most SF6 switches are installed indoors, gas leakage not only creates oxygen-deficient zones endangering personnel but also severely compromises arc-extinguishing performance. The high-precision handheld SF6 gas leak detector provides reliable maintenance solutions by accurately locating leaks through multiple detection methods including SF6 concentration monitoring, audible/visual alarms and data trend analysis, effectively eliminating potential safety hazards while ensuring equipment reliability.
Product functions
High-sensitivity leak detection
Adopts a high-performance SF6 detection sensor capable of rapidly detecting extremely low concentrations of SF6 gas in the air. It can identify minor leak points in equipment, enabling early warning and effectively preventing leak escalation.
Rapid leak point localization
Features millisecond-level response capability. With a flexible probe, it can precisely scan GIS switchgear, circuit breakers, ring main units, and gas pipelines to quickly pinpoint leak locations, improving maintenance efficiency.
Real-time concentration display
During detection, the SF6 gas concentration changes are displayed in real time, accompanied by dynamic waveform curve analysis charts, helping operators accurately assess the leak severity.
Buzzer alarm function
When the detected concentration exceeds the preset alarm threshold, the instrument automatically activates a buzzer alarm. The alarm frequency adjusts according to concentration changes, enabling rapid identification of leak areas.
Advantages
The SF6 gas leak detector incorporates cutting-edge pump suction and NDIR single-beam dual-wavelength infrared technology for highly sensitive, precise and stable detection. It features advanced digital processing with drift control and temperature compensation circuits to ensure superior anti-interference capability.
For user convenience, it offers full self-check functions (low battery, sensor fault, range exceedance) and a color LCD with Chinese menu interface. Detection data is displayed in real-time with dynamic waveform analysis, while audible/visual alarms trigger at preset thresholds.
Additional highlights include:
Self-calibration function for maintained accuracy
Long-lasting lithium battery (5+ hours continuous operation)
Built-in data logging (20,000 records with waveform storage)
Compact handheld design for portability
Perpetual calendar clock for time-stamped records
Өнім параметрлері
Техникалық параметрлер
| Жоба | Content | ||
| Өнім үлгісі | UHV-630 | ||
| Measurement method | NDIR single beam dual wavelength infrared measurement technology | ||
| Monitoring gas | Өлшеу диапазоны | Ажыратымдылық | Дәлдік |
| Sulfur hexafluoride gas | 0～12000ppm | 1ppm | ±（1.5%+5d） |
| Repetitive performance | 1% | ||
| Pump extraction speed | ≥800ml/min | ||
| Үздіксіз жұмыс уақыты | Not less than 5 hours | ||
| Instrument start-up preheating time | ≤ 10 seconds | ||
| Жауап беру уақыты | Less than 3 seconds | ||
| Recovery time | Less than 3 seconds | ||
| Charging adapter specifications | DC5V/1A | ||
| Surge (impact) immunity | ±1.2kV | ||
| Қоршаған орта температурасы | -20℃～＋50℃ | ||
| ambient humidity | Relative humidity 5-95% (no condensation) | ||
| Атмосфералық қысым | 50kPa～110kPa | ||
| Protection level | IP33, Double insulation, CAT II standard | ||
| External dimensions | 250×160×70mm3 | ||
| Host weight | 1 кг | ||
Application Scenarios
Power equipment maintenance and condition-based maintenance — During annual overhauls, scheduled outages, or fault diagnosis, perform comprehensive leak detection on SF6 gas compartments, connection components, and sealing systems to quickly locate leak points, providing a reliable basis for equipment repair and seal replacement.
4. SF6 gas filling and recovery operations — During SF6 gas filling, replenishment, recovery, and purification processes, perform real-time leak monitoring on cylinder interfaces, filling devices, recovery equipment, and gas pipelines to reduce gas loss and improve operational safety and recovery efficiency.
5. Power equipment manufacturing and factory quality inspection — Applied in the production process of GIS switchgear, SF6 circuit breakers, ring main units, and other products, conducting leak detection on complete units and key sealing components to ensure products meet factory quality requirements and enhance product reliability.
FAQ about High Precision SF6 Gas Leak Detector
What is a high-precision SF6 gas leak detector, and what is its primary function?
A high-precision SF6 gas leak detector is a specialized instrument used to detect sulfur hexafluoride (SF6) gas leaks. It can rapidly identify trace concentration changes of SF6 in the air surrounding equipment and precisely locate leak points. It is widely used in power equipment operation and maintenance, equipment manufacturing, installation and commissioning, and overhaul work, providing a reliable basis for ensuring equipment insulation performance and operational safety.
Why is it necessary to perform regular leak detection on SF6 equipment?
During long-term operation of SF6 equipment, aging seals, loosening of connections, or mechanical vibration may lead to gas leakage. Regular leak detection helps identify potential issues early, reduce gas loss, maintain equipment insulation performance, and lower operational risks and maintenance costs.
What types of equipment is the high-precision SF6 gas leak detector suitable for?
This instrument is suitable for various types of power equipment using SF6 insulation or arc-quenching technology, including GIS switchgear, SF6 circuit breakers, gas-insulated transmission lines (GIL), ring main units, transformers, gas-filled cabinets, as well as SF6 gas recovery and filling devices. It is also applicable in the production, installation, and maintenance stages of related equipment.
What factors may affect the effectiveness of SF6 leak detection?
The detection results may be affected by factors such as ambient wind speed, air flow, temperature and humidity, probe movement speed, and detection distance. Choosing a reasonable detection route, maintaining a steady detection speed, and avoiding strong airflow interference can help improve detection accuracy and repeatability.
