EN
GDPD-HVC-OL Cable Partial Discharge Online Monitoring System
GDPD-HVC-OL Digital Intelligent Distributed Cable Partial Discharge Online Monitoring System with HFCT/UHF/AE Multi-Sensor Fusion, Edge Computing Architecture, Smart Quick Cloud Platform Integration, IP68 Protection, for 6kV~35kV XLPE Cable Real-Time Condition Monitoring.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDPD-HVC-OL is a professional-grade, distributed real-time partial discharge monitoring systemexclusively designed for 6kV~35kV XLPE power cables and their accessories. It fully complies with DL/T 2271-2021, DL/T 1506-2016 and IEC 60270:2015 standards, adopting an innovative multi-sensor fusion technology that integrates high-frequency current transformers (HFCT), ultra-high frequency (UHF) antennas and acoustic emission (AE) sensors to achieve comprehensive and accurate partial discharge detection.
The system features a distributed edge computing architecture where each front-end acquisition unit is equipped with a high-performance FPGA/DSP processor, enabling real-time signal processing and feature extraction at the edge. With an industry-leading 250MS/s sampling rate and 14-bit resolution, it can accurately capture extremely weak partial discharge signals even in complex electromagnetic environments. The built-in expert diagnosis system automatically identifies common defect types such as water tree degradation, internal voids, cable joint defects and installation errors, and provides four-level early warning (Normal / Attention / Warning / Critical) with maintenance recommendations.
Specifications
| Parameter | Specification |
|---|---|
| System Parameters | |
| Compliance Standard | DL/T 2271-2021, DL/T 1506-2016, IEC 60270:2015, GB/T 7354-2018 |
| Architecture | Distributed edge computing + cloud platform |
| Monitoring Range | 6kV~35kV XLPE power cables and accessories |
| Maximum Monitoring Points | Up to 1000 per system |
| HFCT Sensor Parameters | |
| Frequency Range | 0.3MHz ~ 200MHz |
| Transfer Impedance | ≥15mV/mA @10MHz |
| Sensitivity | 10pC (laboratory), 20pC (field) |
| Aperture | φ54mm (customizable for different cable sizes) |
| Installation | Clamp-on, non-intrusive |
| UHF Sensor Parameters | |
| Frequency Range | 300MHz ~ 1500MHz |
| Effective Height | ≥8mm |
| Gain | ≥40dB |
| AE Sensor Parameters | |
| Frequency Range | 20kHz ~ 200kHz |
| Sensitivity | 0.1mV |
| Acquisition Unit Parameters | |
| Sampling Rate | 250MS/s per channel |
| Resolution | 14-bit |
| Synchronous Channels | 3 channels per unit |
| Phase Resolution | 0.18° |
| Local Storage | 8GB (up to 6 months offline storage) |
| Communication Parameters | |
| Communication Methods | Optical fiber (up to 20km), 4G, WIFI, Ethernet |
| Protocol | TCP/IP, Modbus, MQTT |
| Software Functions | |
| Map Display | PRPD, PRPS, waveform, spectrum, trend graph |
| Defect Identification | Automatic recognition of 6+ common defect types |
| Early Warning | Four-level (Normal / Attention / Warning / Critical) |
| Report Generation | Automatic Word/PDF report generation |
| Cloud Platform | Smart Quick cloud platform integration |
| Physical Parameters | |
| Protection Grade | IP68 (all sensors and acquisition units) |
| Operating Temperature | -40℃ ~ +65℃ |
| Storage Temperature | -55℃ ~ +90℃ |
| Power Supply | AC220V, DC110V/220V, induction power supply |
| Power Consumption | <5W per acquisition unit |
| Housing | Stainless steel, anti-corrosion coating |
Applications
Core Test Objects
- XLPE power cables: 6kV, 10kV, 20kV, 35kV cross-linked polyethylene power cables
- Cable accessories: Cable terminals, intermediate joints, branch joints, T-connectors
- Cable system components: Cross-connection boxes, grounding boxes, cable distribution cabinets
Typical Usage Scenarios
- Power companies: Cable condition-based maintenance, smart grid construction, real-time fault early warning
- Power engineering companies: New cable acceptance monitoring, construction quality inspection
- Industrial enterprises: Internal power cable monitoring, preventive maintenance
- Cable manufacturers: Long-term performance testing, quality verification
- Third-party testing institutions: Cable status assessment, technical service
Advantages
Compliance with Latest International Power Standards
Fully meets DL/T 2271-2021 Chinese power industry standard and IEC 60270 international standard → test results are recognized by power systems worldwide
Industry-Leading Multi-Sensor Fusion Technology
Integrates HFCT, UHF and AE detection methods, cross-validates signals from different dimensions → reduces false alarm rate by 80% compared to single-method systems
Distributed Edge Computing Architecture
Real-time signal processing at the edge, reduces data transmission volume and improves system response speed → supports up to 1000 monitoring points per system
Non-Intrusive Installation & Zero Power Outage
Clamp-on sensors, no need to modify cable structure or interrupt power supply → can be installed on operating cables without affecting normal power supply
Intelligent Expert Diagnosis System
Automatically identifies defect types and assesses severity → eliminates subjective judgment errors, provides scientific maintenance recommendations
Smart Quick Cloud Platform Integration
Remote monitoring, data analysis and full life cycle management → realizes intelligent cable management and predictive maintenance
FAQ
Q: Does it require power outage for installation?
A: No. All sensors adopt non-intrusive clamp-on design that can be installed on cable grounding wires and accessory shells without modifying the cable structure or interrupting power supply. The installation process is simple and fast, usually taking less than 30 minutes per monitoring point.
Q: How accurate is the defect identification?
A: The system has a built-in expert diagnosis system trained on thousands of typical PD patterns collected from field tests and laboratory experiments. The overall defect identification accuracy is over 90% for common defect types such as water trees, voids and joint defects.
Q: Can it work in harsh underground environments?
A: Yes. All sensors and acquisition units have IP68 dustproof and waterproof rating and can be directly immersed in water for short periods. They can operate reliably in temperatures from -40℃ to +65℃ and are resistant to moisture, corrosion and vibration, making them ideal for installation in cable wells, tunnels and manholes.
