GIS partial discharge online monitoring system
IN-202G GIS Partial Discharge Online Monitoring System

 GIS partial discharge online monitoring system

System Components

IN-202G GIS partial discharge online monitoring systemIt mainly consists of a highly sensitive partial discharge sensor, a data acquisition and analysis module, a stable data transmission communication module, a reliable power supply module, and intelligent background monitoring and diagnostic software. By continuously monitoring the partial discharge phenomenon, RS-202G is able to provide timely warnings of potential failures and assist maintenance personnel in preventive maintenance, thus reducing unplanned downtime and maintenance costs.

system function

The IN-202G GIS partial discharge online monitoring system is highly adaptable and flexible, utilizing highly sensitive sensors installed at key locations of GIS equipment to capture partial discharge signals. The signals are analyzed by the data acquisition and processing module and then transmitted to the monitoring center via wired or wireless communication technology. The monitoring center software receives and parses the data, displays it in a graphical interface, and provides historical data storage, trend analysis, discharge type identification, fault location, and anomaly alarm functions to help O&M personnel respond in a timely manner to ensure the safe and stable operation of the power system. The system is also applicable to industrial and scientific research fields, providing important support for equipment maintenance and research.

Equipment parameters

Number of detection channels for a single device 1 to 16 operating frequency range 300MHz~3000MHz
Acquisition bandwidth ≥1000MHz signal reception sensitivity ≤-65dBm
Data processing cycle ≤20μs Signal reception dynamic range ≥60dB
Data Acquisition Sampling Rate ≥64MS/s Insulation impedance to ground ≥20MΩ
Density measurement range 0～100kg/m³ Channel Impedance 50Ω
environmental adaptation Ambient temperature: -40℃～+70℃; Ambient humidity: 0～95% (no condensation)
Operating power IED monitoring unit: AC220V, ±10%; sensor: passive

Built-in UHF Local Discharge Sensor

Built-in UHF local amplifier sensor

  • Working PrincipleWhen partial discharges occur inside GIS equipment, UHF electromagnetic waves in the frequency range of 300MHz - 3GHz are generated. Built-in UHF PD sensors are installed inside the GIS equipment and can directly sense these UHF electromagnetic signals and convert them into electrical signals that can be recognized and processed by the monitoring system.
  • dominance
    • high sensitivity: It is able to detect weak localized discharge signals and has a high sensitivity for the detection of early insulation defects.
    • High anti-interference capability: Due to the high frequency of UHF signals, it can effectively avoid some low-frequency interference signals, such as industrial frequency interference in the power system, thus improving the accuracy of the monitoring results.
    • Easy to install: The built-in design allows it to be installed directly inside the GIS equipment, reducing the impact of the external environment on the monitoring signal and not affecting the normal operation and maintenance of the GIS equipment.
  • application scenarioIt is mainly applied to the GIS equipment in substations and other places to monitor the partial discharge inside the equipment in real time and ensure the stable operation of power equipment.

External UHF Local Discharge Sensor

External UHF Local Discharge Sensor

Externally wired GIS UHF local-radio sensors

Signal transmission is stable and reliable, strong anti-interference ability, can accurately pass the weak local-amplitude signals, to protect the accuracy of the data; the data is transmitted through the closed cable, high security, not easy to be attacked by external malice, and can stably support the precise analysis of the insulation state of the equipment.

External Wireless GIS UHF Localized Amplification Sensor

Extremely convenient installation, without complex wiring, suitable for equipment modification and temporary monitoring, significantly saving installation time and cost; outstanding flexibility, can easily adjust the sensor position, increase or decrease the number of convenient to build a flexible monitoring network, adapted to different monitoring needs.
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