T/CES 114-2022 Active Group standards

T/CES 114-2022 Intelligent specialized high-frequency partial discharge on-line monitoring device technical specification

Publish Date: 2022-06-22 Implement Date: 2022-06-24 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/CES 114-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Substations, surge arrestors

Publish Date: 2022-06-22

Implement Date: 2022-06-24

Scope

Scope: This document specifies the composition, technical requirements, test items and requirements, inspection rules, marking, packaging, transportation, and storage requirements of intelligent ultra-high frequency (UHF) on-line monitoring devices for partial discharge in GIS equipment. This document applies to intelligent UHF on-line monitoring devices installed on GIS equipment, serving as a basis for the design, production, selection, inspection, and testing of such devices. Other substation equipment may refer to this document for implementation. Main technical content: UHF on-line monitoring technology offers significant advantages in monitoring partial discharge in GIS equipment. However, traditional UHF on-line monitoring devices have limited anti-interference measures, leading to frequent false alarms caused by external discharge interference; they cannot locate the discharge source and only trigger alarms after personnel arrive on-site for location; and regular device inspections are required to avoid device malfunctions. To address these issues and improve the reliability of UHF on-line monitoring devices, this document proposes an intelligent UHF on-line monitoring device that incorporates high-performance detectors and high sampling rates. Building on existing monitoring devices, it adds functions such as anti-interference via arrival time difference method, automatic location using arrival time difference method, and channel integrity self-check, enhancing the performance of on-line monitoring devices and achieving excellent results in field applications. To promote this technology, improve the technical level of UHF on-line monitoring devices, and reduce false alarms and missed detections in GIS equipment partial discharge on-line monitoring, this technical specification has been compiled. This document specifies the composition, technical requirements, test items and requirements, inspection rules, marking, packaging, transportation, and storage requ