GIS Equipment Partial Discharge Online Monitoring System

Product Introduction

Partial discharge measurement aids in identifying various insulation defects within GIS, serving as a crucial means for diagnosing the health status of GIS. At every stage of GIS manufacturing, installation, operation, and maintenance, partial discharge testing should be conducted whenever conditions permit. At substation sites, conventional pulse current testing of GIS is often challenging due to constraints such as electromagnetic environments, testing equipment, and test power sources. Practical experience demonstrates that partial discharge ultrasonic and ultra-high frequency detection offer high sensitivity and strong anti-interference capabilities. These methods provide diverse two-dimensional and three-dimensional partial discharge waveform maps and discharge amplitude data, enabling effective assessment of electrical equipment's partial discharge conditions. They are well-suited for GIS partial discharge measurement under power plant and substation field conditions. The monitoring system supports multiple communication methods including fiber optic, LoRa, and 4G.

Product Parameter (specification)

1) Environmental Conditions
Ambient temperature	-25°C to 50°C;
Relative humidity	≤90%.
2) Power Supply	External AC 220V power supply.
3) Ultra-High Frequency Sensor
Detection band	300 to 1500 MHz;
Detection sensitivity	-80 dBm;
Test Range	-80 to 0 dBm.
4) Spectrum Display
Multiple display modes	Trend line graph, PRPD, PRPS, Phase line graph, etc.

Product feature and application

3.1 Distributed Layout with Strong Scalability

The monitoring terminals are networked. When adding or removing terminals from the existing layout, the system automatically identifies and configures them without requiring additional setup.

3.2 Real-Time Monitoring

The system records real-time data from each monitoring node, with flexible monitoring cycle settings.

3.3 High Sensitivity

Minimum detectable discharge signal is 5 pC.

3.4 Timely Early Warning

Upon detecting abnormal partial discharge levels at any node, the system rapidly feeds back to the monitoring server. Server software logs essential information and issues alerts to users.

3.5 Impact Resistance

Withstands 600kV flashover impacts without damaging terminal equipment or losing data.

3.6 Interference Resistance

Features time-domain and frequency-domain signal analysis technology to effectively separate interference signals from partial discharge signals, while efficiently mitigating interference at the instrument's power supply end.

3.7 Edge Computing

Aligns with current IoT terminal design principles, processing data locally at the edge while enabling remote analysis and data replay/retrieval mechanisms.

3.8 Stable Transmission

Leverages robust mobile networks for direct, reliable long-distance data transmission to servers with minimal network latency.

3.9 Secure Integration

System integration does not compromise GIS sealing or insulation performance, ensuring uninterrupted equipment operation.

Prodection details

Live testing of equipment can be performed without power interruption, suitable for online monitoring of ultra-high-frequency partial discharge signals and ultrasonic signals in GIS equipment.

Company Qualifications

FAQ

1)What are the applicable scenarios for the MOEORW-W5086U GIS Equipment Partial Discharge Online Monitoring System?

Answer: This system is designed for real-time monitoring and anomaly alerts of partial discharge signals in GIS (Gas-Insulated Metal-Enclosed Switchgear) high-voltage electrical equipment. It is suitable for applications in power plants, substations, and similar environments. Capable of online monitoring of ultra-high-frequency partial discharge signals and ultrasonic signals from GIS equipment without power interruption, it aids in detecting various internal insulation defects within GIS and diagnosing the health status of GIS.

2)What interference-resistant features does the MOEORW-W5086U GIS Equipment Partial Discharge Online Monitoring System possess?

Answer: The system's interference-resistant features primarily include two aspects: First, it employs time-domain and frequency-domain signal analysis technology to effectively separate interference signals from partial discharge signals. Second, it effectively mitigates interference at the instrument's power supply end, ensuring accurate partial discharge signal detection even in complex electromagnetic environments like substations.

3)What are the main components of the MOEORW-W5086U GIS Equipment Online Partial Discharge Monitoring System?

Answer: The system primarily consists of front-end external ultra-high-frequency sensors or contact ultrasonic sensors, a 6-channel partial discharge acquisition unit, a data concentrator, a data analysis terminal server, and partial discharge analysis software. The sensors collect partial discharge signals, the acquisition unit processes the signals, the data concentrator aggregates and transmits data, and the analysis software performs data visualization, analysis, and early warning functions.

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