GB/T 14598.1871-2024
Measuring relays and protective devices Part 187-1: Functional requirements for differential protection Ratio braking differential protection and differential quick-break protection of motors, generators and transformers (English Version)

Standard No.
GB/T 14598.1871-2024
Language
Chinese, Available in English version
Release Date
2024
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 14598.1871-2024
 
Introduction
Standard Title: Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers (IEC 60255-187-1:2021, IDT)
Standard Number: GB/T 14598.1871-2024
Scope: This standard specifies the functional requirements for differential protection of motors, generators and transformers including restrained and unrestrained differential protection.

The document outlines various technical specifications for measuring relays and protection equipment to ensure compliance with international standards. It covers aspects such as input quantities, switch inputs, function logic, switch outputs, conditions influencing characteristics of differential protection, performance requirements, safety during excitation inrush conditions and over-excitation conditions, among others. Additionally, it provides detailed procedures for functional testing, documentation requirements, and includes several appendices with additional technical information and examples.

This standard aims to provide unified principles that apply to measuring relays and protective devices used in generation, transmission, distribution, and utilization systems of electrical power. It ensures conformity across a wide range of equipment types and scenarios by setting out specific requirements for differential protection functionality.

GB/T 14598.1871-2024 history

  • 2024 GB/T 14598.1871-2024 Measuring relays and protective devices Part 187-1: Functional requirements for differential protection Ratio braking differential protection and differential quick-break protection of motors, generators and transformers
Measuring relays and protective devices Part 187-1: Functional requirements for differential protection Ratio braking differential protection and differential quick-break protection of motors, generators and transformers

Topics on standards and specifications

engine protectant Electric vehicle battery protection board power generator protection transformer protection differential transformer

Standard and Specification

GB/T 14598.8-2008 Electrical relays.Part 20：Protection systems

GB/T 14598.1871-2024 -All Parts

GB/T 14598.1-2002 Electrical relays--Part 23: Contact performance GB/T 14598.10-2012 Measuring relays and protetion equipment.Part 22-4:Electrical disturbance tests.Electrical fast transient/burst immunity test GB/T 14598.11-2011 Measuring relays and protection equipment.Part 11: Voltage dips, short interruptions, variations and ripple on auxiliary power supply port GB/T 14598.118-2021 Measuring relays and protection equipment—Part 118: Synchrophasor for power systems—Measurements GB/T 14598.12-1998 Electrical relays. Part 19: Blank detail specification. Electromechanical all-or-nothing relays of assessed quality. Test schedules 1,2 and 3 GB/T 14598.121-2017 Measuring relays and protection equipment—Part 121：Functional requirements for distance protection GB/T 14598.127-2013 Measuring relays and protection equipment.Part 127:Functional requirements for over/under voltage protection GB/T 14598.13-2008 Electrical relays.Part 22-1:Electrical disturbance tests for measuring relays and protection equipment.1 MHz burst immunity tests GB/T 14598.14-2010 Measuring relays and protection equipment.Part 22-2:Electrical disturbance tests.Electrostatic discharge tests GB/T 14598.149-2016 Measuring relays and protection equipment.Part 149:Functional requirements for thermal electrical relays GB/T 14598.15-1998 Electrical relays. Part 8:Thermal electrical relays GB/T 14598.151-2012 Measuring relays and protection equipment.Part 151:Functional requirements for over/under current protection GB/T 14598.16-2002 Electrical relays--Part 25: Electromagnetic emission tests for measuring relays and protection equipment GB/T 14598.17-2005 Electrical relay-Part 22-6：Electrical disturbance tests for measuring relays and protection equipment-Immunity to conducted disturbances induced by radio frequency fields GB/T 14598.18-2012 Measuring relays and protection equipment.Part 22-5:Electrical disturbance tests.Surge immunity test GB/T 14598.181-2021 Measuring relays and protection equipment—Part 181：Functional requirements for frequency protection GB/T 14598.1871-2024 Measuring relays and protective devices Part 187-1: Functional requirements for differential protection Ratio braking differential protection and differential quick-break protection of motors, generators and transformers GB/T 14598.19-2007 Electrical relays Part 22-7: Electrical disturbance tests for measuring relays and protection equipment Power frequency immunity test GB/T 14598.2-2011 Measuring relays and protection equipment. Part 1:Common requirements GB/T 14598.20-2007 Electrical relays Part 26: Electromagnetic compatibility requirements for measuring relays and protection equipment GB/T 14598.23-2017 Electrical relays—Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment—Section 3: Seismic tests GB/T 14598.24-2017 Measuring relays and protection equipment—Part 24: Common format for transient data exchange (COMTRADE) for power systems GB/T 14598.26-2015 Measuring relays and protection equipment.Part 26: Electromagnetic compatibility requirements GB/T 14598.27-2017/XG1-2019 Measuring Relays and Protective Devices Part 27: Product Safety Requirements "No. 1 Amendment" GB/T 14598.27-2017/XG1-2019 Measuring Relays and Protective Devices Part 27: Product Safety Requirements "No. 1 Amendment" GB/T 14598.3-2006 Electrical relays.Part 5:Insulation coordination for measuring relays and protection equipment.Requirements and tests GB/T 14598.300-2017 General specification for transformer protection equipment GB/T 14598.301-2020 Technical requirements for power system continuous recorder GB/T 14598.302-2016(英文版) Specification for arc flash protection equipmen GB/T 14598.303-2011 General specification for digital motor combined protection equipment GB/T 14598.4-1993 Electrical relays. Part 14: Endurance test for electrical relay contacts. Preferred values for contact loads GB/T 14598.5-1993 Electrical relays. Part 15: Endurance tests for electrical relay contacts. Specification for the characteristics of test equipment GB/T 14598.6-1993 Electrical relays. Part 18: Dimensions for general purpose all-or-nothing relays GB/T 14598.7-1995 Electrical relays. Part 3: Single input energizing quantity measuring relays with dependent or independent time GB/T 14598.8-2008 Electrical relays.Part 20：Protection systems GB/T 14598.9-2010 Measuring relays and protection equipment.Part 22-3:Electrical disturbance tests.Radiated electromagnetic field immunity


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