T/CAEE 018-2025 Active Group standards

T/CAEE 018-2025 Surge arrestor online monitoring system technical requirements

Publish Date: 2025-11-07 Implement Date: 2025-12-07 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CAEE 018-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Other equipment related to the transmission and distribution networks

Publish Date: 2025-11-07

Implement Date: 2025-12-07

Scope

4 System Composition Basic Composition 4.1.1 The online monitoring system for lightning arresters shall include the following components: a) Sensors: Used to collect signals such as the total current, resistive current, and number of operations of the lightning arresters. b) Data acquisition unit: Used to convert the signals collected by the sensors into digital signals and conduct preliminary processing. c) Data transmission unit: Used to transmit the collected data to the data processing and analysis unit, which can be implemented via wired or wireless methods. d) Data processing and analysis unit: Used to analyze and process the collected data, generate monitoring reports, and conduct fault diagnosis. e) User interface: Provides a user interface for operation. 4.1.2 Based on functional division, the online monitoring system for lightning arresters shall include the following components: a) Monitoring equipment: Composed of current sensors, online monitoring units for lightning arresters, voltage acquisition units, and other equipment. b) System IED: Composed of a system IED communication protocol converter, which enables communication with other main IEDs and other functions. c) User interface: Composed of on-site monitoring programs, background data analysis and processing, and client data query programs. 4.1.3 Working Principle The online monitoring unit for lightning arresters obtains the current and voltage signals of the monitored equipment from current sensors and PT converters, and calculates the characteristic parameters of the insulation characteristics of the monitored equipment, such as the total current and resistive current values of the lightning arresters. These data are sent to the intelligent monitoring IED via the RS485 bus, and then communicated with other main IEDs via the IEC 61850 protocol. The online monitoring analysis software uses the principles of comparative analysis and trend analysis to compare and analyze t