Lightning arrester online monitoring system
IN-205C Lightning Arrester Online Monitoring System

Lightning arrester online monitoring system

For A, B, C three-phase surge arrester of different busbars (upper and lower busbars), the system has set up current unit and lightning strike unit to monitor the current and lightning strike of the surge arrester, and at the same time, there are voltage sampling unit to collect voltage signals. These collected signals are transmitted to the lightning arrester IED (Intelligent Electronic Device) unit, and then through the optical fiber, MODBUS, TCP/IP, DLT860 and other communication methods, the data will be transmitted to the MOA online monitoring data management system. The management system can realize charts, curves, data query, report generation and printing functions, so as to carry out online monitoring and management of the lightning arrester's operation status, timely grasp of the lightning arrester's working condition, and ensure the safe and stable operation of the power system.

System Components

IN-205C Lightning arrester online monitoring systemIt consists of intelligent perception sensor, signal processing unit, data acquisition unit, analysis and diagnosis unit, communication unit, display module (optional), power supply module and background monitoring and diagnosis analysis software (optional). Among them, the intelligent perception sensor can choose passive wireless lightning arrester sensor or active wired sensor according to the need to realize the comprehensive monitoring of the lightning arrester operation status.

system function

The IN-205C surge arrester online monitoring system realizes comprehensive real-time monitoring of surge arrester operating status by integrating intelligent sensing sensors, signal processing units, data acquisition and analysis modules, communication units and background monitoring software. The system utilizes leakage current, temperature and humidity sensors to accurately capture changes in the arrester's operating parameters, ensuring the accuracy and reliability of the data. The signal processing unit performs preliminary analysis of the collected data and transmits the information to the background monitoring software through the communication unit to provide trend prediction, fault diagnosis and health assessment.

Mainframe Parameters

Full current measurement range 100μA～50mA Full current measurement error ± (nominal reading x 2% + 5μA)
Resistive Current Measurement Range 10μA～10mA Resistive current measurement error ± (nominal reading x 5% + 5μA)
Measuring range of resistance-capacitance ratio 0.05 to 0.5 Harmonic current measurement error ± (nominal reading x 2% + 0.01)
Busbar voltage measurement range 35kV～1000kV Busbar voltage measurement error ±0.5%
System frequency measurement range 45Hz～60Hz System frequency measurement error ±0.01Hz
working environment Ambient temperature: -40℃～+70℃; Ambient humidity: 0～95% (no condensation)
Operating power AC220V, ±10%; optional solar + battery power supply

Lightning arrester digital meter

Power supply method external power supply Leakage current self-powered solar powered
communication method Wired RS485 cordless /

Lightning arrester digital meter

Active wired lightning arrester monitoring

Active wired lightning arrester monitoring

With its comprehensive monitoring functions and reliable performance, the lightning arrester online monitoring system is suitable for a variety of application scenarios:

power plants

In power plants, there are numerous high-voltage electrical equipments, such as generators and transformers, which play a key role in the stable operation of the power system. Lightning arrester is an important device to protect these equipments from lightning overvoltage and operational overvoltage, IN-205C system can monitor the operation status of lightning arrester in real time in the power plant, and discover abnormal changes in the performance of lightning arrester in time, such as increased leakage current, abnormal resistance current, etc., so as to guarantee the safety of electrical equipments in the power plant, and to avoid downtime accidents triggered by lightning arrester failures, and to ensure a continuous and stable supply of electric power.

(transformer) substation

Substation is the key hub of power system to transform voltage, receive and distribute power. A large number of surge arresters of different voltage levels are installed in the substation to protect transformers, circuit breakers, mutual transformers, etc. The IN-205C system can accurately monitor the three-phase surge arresters of each busbar of the substation, and transmit the data to the monitoring system via optical fiber via MODBUS, TCP/IP, etc., which is convenient for the operation and maintenance personnel to keep abreast of the work of the surge arresters and prevent equipment failures. It is convenient for operation and maintenance personnel to know the working condition of lightning arrester in time, prevent equipment failure, and improve the reliability and safety of power supply of substation.

transmission line

Transmission lines are exposed outdoors for a long time, and are vulnerable to lightning strikes, overvoltage and other threats, and the lightning arrester installed along the line is an important line of defense to ensure the safe operation of the line. This helps O&M personnel to assess the working condition and life span of the arrester, arrange maintenance and repair in advance, reduce tripping and blackout caused by lightning arrester failures, and ensure the reliable delivery of electricity.

industrial enterprise

Some of the higher requirements for power supply stability of industrial enterprises, such as chemical, iron and steel, electronics manufacturing and other industries, the production equipment is more sensitive to overvoltage. The lightning arrester installed in the internal power supply system of the enterprise is related to the continuity of production and the safety of the equipment.IN-205C online monitoring system for lightning arrester can help enterprises to monitor the operation status of lightning arrester in real time, discover potential problems in time, avoid damage to the equipment due to over-voltage, reduce the risk of interruption of production, and safeguard the normal production order of the enterprise and the economic benefits.
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