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GB/T 42154-2022Technical guideline for power quality monitoring in distribution network (English PDF)

配电网电能质量监测技术导则

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 30, 2022

Implementation date

July 1, 2023

Scope

GB/T 42154-2022 is the English-translated version of 配电网电能质量监测技术导则.

GB/T 42154-2022 is technical guidance for monitoring power quality on a distribution network.

It covers the general rules, how the monitoring method is chosen, where monitoring points are set and which monitoring indicators are selected, then the monitoring data sources - their classification, the monitoring equipment and other sources - and the use made of the monitoring data.

Its informative annexes give a typical monitoring system architecture, typical power quality disturbance sources with the matching monitoring indexes, and the MQTT communication protocol, which is the longest of the three.

It applies to power quality monitoring of AC distribution networks, takes the monitoring device definition from GB/T 19862-2016, and quotes GB/T 17626.30, GB/T 22239, DL/T 860, DL/T 1297 and DL/T 1608. Issued on 30 December 2022, it has applied since 1 July 2023.

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Document preview — GB/T 42154-2022

National Standard of the People's Republic of China

ICS: 29.240
Classification: K 04

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Abbreviations
5 General
5.1 Basic general rules
5.2 Selection of monitoring methods
5.3 Monitoring point setting
5.4 Selection of monitoring indicators
6 Power quality monitoring data source
6.1 Classification of Monitoring Data Sources
6.2 Monitoring equipment
6.3 Other data sources
7 Application of power quality monitoring data
Appendix A (Informative) Typical Power Quality Monitoring System Architecture
Appendix B (Informative) Typical Power Quality Interference Sources and Monitoring Indexes
Appendix C (Informative) MQTT Communication Protocol
Reference

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

1 Scope

This document proposes the general principles of power quality monitoring, power quality monitoring data sources and power quality monitoring data applications.

This document applies to power quality monitoring of AC distribution networks.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 14598.24 Measuring relays and protective devices - Part 24: Power system transient data exchange (COMTRADE) communication in format

GB/T 17626.30 Electromagnetic Compatibility Test and Measurement Technology Power Quality Measurement Method

GB/T 19862 General requirements for power quality monitoring equipment

GB/T 22239 Basic Requirements for Network Security Level Protection of Information Security Technology

DL/T 860 (all parts) Electric automation communication network and system

DL/T 1297 Technical Specifications for Power Quality Monitoring System

DL/T 1455 Power System Control Software Security and Evaluation Technical Requirements

DL/T 1608 Power Quality Data Exchange Format Specification

3 Terms and Definitions

The following terms and definitions apply to this document.

3.3 A system composed of power quality monitoring data source, communication network and monitoring master station. [Source: GB/T 32507-2016, 3.3, modified]

3.1 It is a special device for monitoring power quality indicators by analyzing and processing the incoming voltage and current signals. [Source: GB/T 19862-2016, 3.1]

3.2 power quality monitoring master station

Application software and its operating environment with functions such as power quality monitoring data collection, analysis, and management.

4 Abbreviations

The following abbreviations apply to this document.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

DL/T 860

Similar standards

GB/T 32897-2026|GB/T 38983.2-2026|GB/T 47850-2026|GB/Z 120.305-2026|GB/T 32900-2025|GB/T 45568-2025

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