Online Partial Discharge Monitoring System for Gis
The Online Partial Discharge Monitoring System for GIS is a professional monitoring device dedicated to comprehensive discharge detection and defect localization of GIS equipment. It is equipped with powerful anti-interference capability and intelligent diagnosis functions, and can realize multi-sensor synchronous detection by adapting to various built-in and external GIS sensors. By optimizing signal detection methods and combining historical data analysis, online partial discharge monitoring system for GIS can accurately identify equipment discharge defects, output high-confidence diagnosis conclusions and targeted maintenance suggestions, effectively ensuring the safe and stable operation of substation GIS equipment.
Description
Details page content
I. A brief product introduction:
Online Partial Discharge Monitoring System for GIS adopts UHF ultra-high frequency sensor signal detection technology, sensor optimization layout technology, SQL database expert analysis technology, etc., to monitor and analyze the electromagnetic wave signals generated by partial discharge inside GIS. The measured data is analyzed, processed, and comprehensively judged to monitor and evaluate the equipment operation status. Subsequently, maintenance plans are arranged based on the monitoring results to avoid major power grid accidents caused by equipment failures and ensure the normal operation of the system with lower maintenance costs.
II. Model Explanation
III. Product Details/Advantages:
1. High detection accuracy and precise partial discharge location; accurately detects partial discharge positions.
2. Employs advanced interference suppression methods, providing strong anti-interference capabilities. It is insensitive to corona discharge interference in the air, effectively suppresses background noise, and exhibits high sensitivity to various discharge defects in GIS systems.
3. Low signal propagation attenuation and a large detection range.
4. Enables continuous online monitoring with live circuits; the measurement method does not alter the equipment's operating mode.
5. The device utilizes a special process structure and multiple shielding measures, passing the anti-interference test conducted by a national-level electromagnetic compatibility laboratory.
IV. Product Parameters
Online Partial Discharge Monitoring System for GIS
- Measurement Method and Frequency: UHF sensor, 500 MHz ~ 1500 MHz
- Sensitivity and Localization: ≤ 10 pC, localization to a specific air chamber
- Identification Types: Corona discharge, gap discharge, floating potential discharge, and electromagnetic noise
- Early Warning and Alarm: IEC standard PC-based quantitative early warning; equipment fault alarm, settable thresholds, color classification, and support for centralized monitoring
- Data Analysis Algorithms: Trend analysis, neuron classification, fuzzy logic, and statistical algorithms
- Communication Interfaces: Sensor → Local: Coaxial cable; Host → Server: TCP/IP; System → Substation: RS485
- Operating Environment: Temperature -25℃~+65℃, IP55 protection, shock resistance 8 degrees, power supply ~220V±10%
- Electromagnetic Compatibility: Meets IEC high-voltage substation electromagnetic environment requirements
V. Scope of Supply
Product Name: Online Partial Discharge Monitoring System For GIS
|
No |
Device Name |
Specifications and models |
Remarks |
|
1 |
Online Partial Discharge Monitoring System For GIS |
SUN-IGuard-501 |
|
|
1.1 |
External sensor |
SUN-IGuard-501 |
Installed on GIS flange |
|
1.2 |
Partial discharge online monitoring IED |
Route 6 |
Installed in the on-site cabinet |
VI. Optional Customization Solutions
We provide customized design and upgrade services for GIS Online Partial Discharge Monitoring Systems. Tailored to your operational scenarios and needs, we support system deployment with adjustable core parameters, acquisition frequency, alarm thresholds, and transmission protocols (non-emergency cases). The system features high-precision sensors and industrial-grade modules for accurate, stable data. Compatible with various voltage levels, it helps reduce long‑term maintenance costs.
VII. Quality
Qualification association: We adhere strictly to globally recognized regulations and protocols, integrating environmental excellence and quality management throughout the product lifecycle.
VIII. Real-world cooperation cases
To meet real-time monitoring needs for the 220kV Substation No. 4 expansion in Indonesia's Vida Bay Industrial Park, we installed a customized UHF partial discharge monitoring system. Using an array of UHF sensors, the system effectively captures and locates GIS partial discharge with strong anti-interference and high real-time performance. After commissioning, it successfully detected and located a floating potential discharge in a disconnector switch, earning high client praise.
IX. Application Scenarios
- Substations (hub & UHV/EHV stations): ensure safety and stability of the main grid.
- Power plant step-up stations (e.g., hydro, thermal, nuclear): ensure reliable power transmission.
- Urban grid key nodes: prevent large-scale blackouts in central city areas.
- Critical user power facilities (e.g., data centers, large hospitals, rail transit): ensure continuous power supply to critical loads.
X. Our Service
Our after-sales service and technical team solemnly promises
Pre-Sales Service
- Consultation & Guidance: 24/7 online support with expert engineers to clarify needs, recommend solutions, and advise on pricing and processes.
- On-Site Inspection: Engineers visit sites for precise measurements and environmental assessment, deliver detailed reports to support tailored system design.
After-Sales Service
- Year Warranty: Covers material/manufacturing defects as per contract.
- Dedicated Support: One-on-one follow-up from a specialized team for seamless assistance.
- Multi-Channel Help: Support via contacts, project teams, or website; fast global coordination for repairs or replacements during warranty.
XI. Product usage tutorials, solutions, and technical problem notifications
Precautions:
Only personnel who have received professional training are permitted to install or dismantle this device.
1. Packaging
Hard carton box with PVC foam plastic lining; certificate of conformity included inside the package.
2. Transportation
May be transported by conventional means in its complete packaging. Handling operations shall comply with the markings on the package.
3. Storage
Temperature: 0°C to 40°C; relative humidity < 95%. Air must be free of oil, corrosive gases, and dust. The device probe shall be equipped with a protective sheath.
XII. Packaging and Transportation
XIII. Factory Strength
1. Qualification Certificates
2. Innovative technologies/capabilities
3. Supply Chain Advantages
1.Rapidly Meets Customization Needs: An integrated supply chain enables swift response to and fulfillment of customer customization requirements.
2.End-to-End Quality Control: Comprehensive quality control is maintained from raw materials to testing.
3.Efficient Short-Chain Model: Shortened supply chains increase production capacity and delivery speed.
4.Value for Money Advantage: Offering more competitive pricing.
4. Professional production equipment (CNC)
XIV. FAQ
Q1: Why does partial discharge occur in GIS?
A. Partial discharge in GIS is mainly caused by defects introduced during manufacturing, installation, or operation, leading to uneven electric field distribution. Common causes include free metal particles, insulation defects, conductor surface burrs, poor contact, and installation errors.
Q2: What are the hazards of partial discharge in GIS?
A. Partial discharge indicates insulation degradation and can develop into serious failures, resulting in widespread power outages, severe equipment damage, and potential safety risks to personnel.
Q3: How is partial discharge detected in GIS?
A. Due to weak signals and the sealed metal enclosure, highly sensitive detection methods are used, such as ultra-high frequency (UHF), ultrasonic, transient earth voltage (TEV), and SF6 gas analysis.
Q4: What should be done after detecting partial discharge?
A.
1.Verify and record the signal, ensuring it originates inside the GIS.
2.Assess the risk level to decide actions-close monitoring, planned maintenance, or immediate shutdown.
3.Increase monitoring frequency for low-risk cases.
4.Plan outage maintenance for high-risk or worsening conditions.
5.Use UHF and ultrasonic methods for precise location before inspection and repair.
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