Smart Surge Arrester Protection Solution: Based on Full Lifecycle Lightning Detection & Dynamic Evaluation System
I. Core Concept: Active Defense + Data-Driven
Breaks through traditional passive protection models by establishing a closed-loop system of "Detection-Evaluation-Warning-Optimization." Achieves precise protection through periodic inspections and dynamic risk assessments, reducing lightning strike incidents by over 40%.
II. Comprehensive Lightning Protection Facility Inspection System
- Three-Tier Inspection Mechanism
- Initial Inspection (New/Retrofit Projects):
- Scans coverage density of air termination systems (rods/straps/meshes).
- Detects loose connections via infrared thermography.
- Annual Inspection (Mandatory):
- Grounding system tests: Dynamic soil resistivity monitoring + 3D imaging of grounding impedance.
- SPD (Surge Protective Device) performance tests: Insulation resistance test + discharge counter verification.
- Special Inspection (Post-Thunderstorm/Fault Occurrence):
- Replays lightning current paths via lightning positioning systems.
- Conducts targeted impulse grounding resistance tests.
- Smart Inspection Tools
- Drone aerial photography for physical condition analysis of air terminals.
- Smart grounding resistance tester (±2% accuracy).
- High-frequency current probes capturing SPD microsecond-level responses.
III. Dynamic Risk Assessment Model
Developed LEAP-Risk™ Assessment Matrix (Lightning Exposure Assessment Program):
Risk Score = 0.3 × Historical Strike Frequency + 0.2 × Equipment Sensitivity
+ 0.4 × Protection Device Integrity + 0.1 × Electromagnetic Environment Complexity
Note: Outputs risk levels (Red/Orange/Yellow/Blue) to drive protection strategy adjustments.
IV. Data Value Transformation
- Digital Twin Management Platform
- Integrates BIM models for visualized inspection results.
- Auto-generates Lightning Facility Health Report, including:
- Ground grid corrosion rate predictions,
- SPD remaining lifespan assessments,
- Air terminal protection angle deviation alerts.
- Risk Response Decision Support
| Risk Level | Protection Reinforcement Focus | Inspection Interval Compression Factor |
|------------|-------------------------------|----------------------------------------|
| Red | Install early streamer emission systems | 30 days/cycle |
| Orange | Upgrade to Class III SPD protection | 90 days/cycle |
| Yellow | Supplement equipotential bonding | 180 days/cycle |
Solution Value
- Risk Visualization: ≥65% reduction in annual lightning disaster economic losses.
- Smart O&M: 50% lower manual inspection costs + 3x faster response speed.
- Precision Protection: Critical equipment lightning withstand capacity elevated to 200kA (IEC 62305 standard).
Case Study: A data center implementing this solution achieved 92% SPD failure prediction accuracy, reduced lightning-induced downtime incidents to zero, and obtained TÜV Rheinland Smart Lightning Protection Certification.
08/01/2025
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