Contact: sales@haomai.net
The PASL-3000 is a cutting-edge online Dissolved Gas Analysis (DGA) monitoring system designed for power transformers in substations. Utilizing laser photoacoustic spectroscopy (LPAS), it provides real-time, high-precision detection of dissolved fault gases in transformer oil.
72-hour Early Warning
Advanced detection for incipient faults allowing proactive maintenance.
Trend Analysis
Comprehensive diagnostics through integrated Duval/Pentagon methods.
Zero Oil Consumption
Environmentally-friendly operation with patented vacuum extraction.
MONITORING SYSTEM
Interpretation of Detected Gas Composition
The system complies with IEEE C57.104 and IEC 60599 standards, enabling accurate identification of fault types based on gas composition:
- CH4, C2H6, C2H4, C2H2 → Thermal condition involving the oil
- H2, CH4, C2H2, C2H6 → Partial Discharge
- H2, C2H2, C2H4 → Sustained arching
- CO, CO2 → Thermal condition involving the paper
Technical Data & Specifications
Gas Measurement Parameters
| Fault Gas Type | Minimum measuring limit | Maximum measuring limit |
|---|---|---|
| H2 | 50 ppm | 20000 ppm |
| O2 | 0~100%(AW) | or 0~100 ppm |
| CO2 | 25 ppm | 10000 ppm |
| CO | 25 ppm | 5000 ppm |
| CH4 | 0.5 ppm | 5000 ppm |
| C2H2 | 0.5 ppm | 5000 ppm |
| C2H4 | 0.5 ppm | 5000 ppm |
| C2H6 | 0.1 ppm | 5000 ppm |
| H2O | 0~100%(AW) | or 0~100 ppm |
Physical Specifications
- Enclosure: IP55 rated for harsh environments
- Dimension: 630(W) x 660(D) x 870(H) mm
- Weight: <150kg for simplified installation
Electrical Specifications
- Power Supply: AC 210~240V, 50~60Hz, 2KW
- Humidity: Operates in 10~95% RH non-condensing
Environmental Specifications
- Oil Temperature: 10°C ~ 100°C
- Environment Temperature: -40°C ~ 55°C
- Start Temperature: -10°C ~ 55°C
Product Advantages
PASL-3000 utilizes cutting-edge laser photoacoustic spectroscopy technology for superior performance compared to traditional monitoring systems.
L-PAS vs. Conventional IR Spectroscopy
Advanced LPAS Technology
- The spectral line width of the laser light source is 15 fm (0.000015 nm), precisely aligned with the absorption spectral line
- Virtually no cross-interference between gases
- Extremely narrow spectral lines with high concentration of light energy
- Higher sensitivity for gas detection with accuracy levels of 0.1 PPM
- Excellent data repeatability with small fluctuations and long-term stability
Conventional IR Spectroscopy
- Output spectrum remains wide (> tens of nanometers) even after filtration
- Wide bandwidth causes excitation of multiple gases leading to cross-interference
- Lower concentration of light energy reduces detection accuracy
- Significant data fluctuations and limited stability over time
Zero Oil Consumption
Patented vacuum-assisted membrane extraction technology ensures transformer oil remains untouched during operation, eliminating contamination risks and maintenance costs associated with oil sampling and replacement.
Comprehensive Diagnostic Tools
Integrated analysis engines including:
- Duval Triangle® (IEC 60599 standard compliant)
- Rogers Ratio with 3D visualization
- Doernenburg Method
PC-Software Program Key Features
Flexible Gas Configuration
Individual parameterization for each monitored gas (H2, C2H2, CH4, etc.) with customizable alarm thresholds and measurement ranges tailored to specific transformers.
Advanced Data Management
MODBUS RTU/TCP, IEC 61850 MMS/GOOSE, IEC 60870-5-104 (IEC104), DNP3.0, and RS485 (1Mbps, 32-node daisy chain) with automated scheduled logging.
Enterprise Data Archiving
Unlimited historical data storage with configuration profile backup/restore and automatic cloud synchronization.
4-Tier Alarm System
Hierarchical alerts: Level 1 (50% threshold), Level 2 (80%), Level 3 (100%), Level 4 (120%) with escalation protocols and multi-channel notifications.
Diagnostic Toolkit
Embedded analysis engines with dynamic gas ratio trend plotting and Duval Triangle®, Rogers Ratio, and Doernenburg Method integration.
Enterprise-Class Export
Multi-format data export: Microsoft Excel® templates, CSV for SCADA, clipboard copy, and printer-ready PDF reports.
Real-Time Monitoring Interface
Live dashboard displaying gas concentrations, trends and transformer health status
Historical Trend Analysis
Detailed graphs and diagnostics for long-term performance assessments
24-hours hot line 400-099-8859 technical hot line： 13971234137
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