GB/T 42149-2022Railway application—Fixed installations—Technical specification for current protection of medium voltage power supply system based on digital communication (English PDF)
轨道交通 地面装置 基于数字通信的中压供电系统电流保护技术规范
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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 42149-2022 is the English-translated version of 轨道交通 地面装置 基于数字通信的中压供电系统电流保护技术规范.
GB/T 42149-2022 deals with current protection based on digital communication in the medium-voltage power supply system of a rail transit line, which it defines as a supply system of 10 kV to 35 kV with its distribution network.
It covers the general requirements, the basic protection configuration - ring network cable, bus, feeder and failure protection - the relay protection device and the network equipment, the protection settings, the test methods from temperature influence, power consumption and overload capability to insulation, damp heat, electromagnetic compatibility and whole-group function simulation, and the correspondence between technical requirements and test methods.
A normative annex gives the composition of the process-layer GOOSE network and the station-control-layer monitoring network. Its introduction states that it was drawn up to standardize such schemes across manufacturers. Issued on 30 December 2022, it has applied since 1 July 2023.
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Document preview — GB/T 42149-2022
National Standard of the People's Republic of China
- ICS
- 29.280
- Classification
- S 81
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Abbreviations
- 5 General Requirements
- 6 Basic configuration of current protection for medium voltage power supply system based on digital communication
- 6.1 Basic requirements
- 6.2 Ring network cable protection
- 6.3 Bus protection
- 6.4 Feeder protection
- 6.5 Failure protection
- 7 Current protection device and related equipment for medium voltage power supply system based on digital communication
- 7.1 Relay protection device
- 7.2 Network and its equipment
- 8 Relay protection setting
- 8.1 General requirements
- 8.2 Ring network cable protection
- 8.3 Bus protection
- 9 Test method
- 9.1 Test conditions
- 9.2 Temperature influence test
- 9.3 Limit ambient temperature test for storage and transportation
- 9.4 Power consumption test
- 9.5 Function and performance test
- 9.6 Export relay test
- 9.7 Overload capability test
- 9.8 Insulation test and insulation measurement test
- 9.9 Humid heat resistance test
- 9.10 Electromagnetic compatibility performance test
- 9.11 DC power supply change influence test
- 9.12 Simulation test of the whole group of protective functions
- 9.13 Continuous energization test
- 9.14 Mechanical requirements test
- 9.15 Safety requirements test
- 10 Correspondence between technical requirements and test methods
- Appendix A (Normative) Composition of the GOOSE network at the process layer and the monitoring network at the station control layer within and between substations
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.
Introduction
In order to standardize the current protection application based on digital communication in the medium-voltage power supply system of rail transit, to realize the standardization and design of the schemes of various manufacturers improve the convenience of proposing, verifying and setting standard schemes based on digital communication current protection in rail transit medium-voltage power supply systems For profit, this document is specially formulated.
1 Scope
This document specifies the technical principles, requirements and technical principles of digital communication-based current protection and related equipment in rail transit medium-voltage power supply systems. and test methods.
This document applies to rail transit medium-voltage power supply systems.
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 14285 Technical Regulations for Relay Protection and Safety Automatic Devices
GB/T 30094 Technical Specifications for Industrial Ethernet Switches
DL/T 584 3kV~110kV Power Grid Relay Protection Device Operation Setting Regulations
DL/T 860 (all parts) Electric automation communication network and system
DL/T 1075-2016 Technical Conditions for Protection Measurement and Control Devices
DL/T 1146-2021 DL/T 860 Implementation Technical Specifications
3 Terms and Definitions
GB/T 14285, DL/T 584, DL/T 860 (all parts), DL/T 1075-2016 and the following terms and definitions apply used in this document.
3.1 medium voltage power supply system
It is a system for transmitting electric energy to electrical equipment consisting of a power supply system with a voltage level of 10kV~35kV and a medium-voltage distribution network.
4 Abbreviations
The following abbreviations apply to this document.
5 General requirements
5.1 The digital communication-based current protection of the medium-voltage power supply system should not be damaged by relay protection devices, optical fiber communication channels, switches, etc. Cause protection misoperation tripping or refusal to move.
5.2 The digital communication-based current protection of the medium-voltage power supply system does not consider the operating conditions of multiple faults of the secondary equipment.
5.3 If no other type of protection is configured in the medium-voltage power supply system, it shall be ensured that when the current protection based on digital communication fails, the medium-voltage power supply system
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 14285Technical code for relaying protection and security automatic equipment
- GB/T 30094Technical specification for industrial Ethernet switchs
- DL/T 584Setting guide for 3kV~110kV power system protection equipment
- DL/T 1075-2016General specifications for protection and control equipment
- DL/T 1146-2021DL/T860 implementation technical specification
DL/T 860
Similar standards
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Related Standards
DL/T 1075-2016 — General specifications for protection and control equipment
DL/T 1146-2021 — DL/T860 implementation technical specification
DL/T 584-2017 — Setting guide for 3kV~110kV power system protection equipment
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