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Delivery: <= 8 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 14598.181-2021: Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection Status: Valid
Basic dataStandard ID: GB/T 14598.181-2021 (GB/T14598.181-2021)Description (Translated English): Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K45 Word Count Estimation: 74,714 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 14598.181-2021: Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Measuring relays and protection equipment -- Part 181:Functional requirements for frequency protection ICS 29:120:70 CCSK45 National Standards of People's Republic of China Measuring relays and protection devices Part 181: Functional requirements for frequency protection (IEC 60255-181:2019, IDT) Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface III Introduction V 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Functional Specifications 4 4:1 Overview 4 4:2 Input the amount of excitation/incentive amount 5 4:3 Digital input 6 4:4 Function logic 6 4:5 Other Affecting Functions/Conditions 9 4:6 Switch output 9 5 Performance Specifications 10 5:1 Overview 10 5:2 Effective range and working range 10 5:3 Accuracy in relation to characteristic quantities 11 5:4 Start-up time of low-frequency protection and over-frequency protection 11 5:5 Start-up time of frequency rate-of-change protection 11 5:6 Accuracy related to action delay setting 11 5:7 Return time 12 5:8 Regression difference and return coefficient 12 5:9 Accuracy related to braking elements, blocking elements 12 5:10 Performance with harmonics 12 5:11 Stability during sudden voltage changes (phase shift and amplitude change) 12 5:12 Voltage Input Requirements 13 6 Functional test method 13 6:1 Overview 13 6:2 Determination of steady-state errors related to characteristic quantities 14 6:3 Determination of start-up time 26 6:4 Determination of Action Delay Accuracy 35 6:5 Return time determination 37 6:6 Performance with harmonics 42 6:7 Stability during sudden voltage changes (phase offset and amplitude change) 48 7 Documentation Requirements 52 7:1 Type test report 52 7:2 Additional User Documentation 53 Appendix A (normative) Test signal expression for constant frequency change rate (df/dt) 54 Appendix B (normative) mean, median and mode calculations 55 B:1 Mean 55 B:2 Median 55 B:3 Mode 55 B:4 Example 55 Appendix C (Informative) Examples of Frequency Measurements and Calculations 56 C:1 Definition 56 C:2 Signal observation model 56 C:3 General Requirements and Common Algorithms for Frequency Measurement 57 Appendix D (Informative) Performance with Interharmonics 63 D:1 Overview 63 D:2 Recommended test: Accuracy of low frequency/over frequency action value 63 Appendix E (Informative) Realization Method of Frequency Sudden Change under Voltage Continuous Waveform 66 Reference 68 forewordThis document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: This document is part 181 of GB/T 14598 "Measuring relays and protective devices": GB/T 14598 has issued the following part: --- GB/T 14598:2 Measuring relays and protection devices - Part 1: General requirements; --- GB/T 14598:3 Electrical Relays Part 5: Insulation coordination requirements and tests for measuring relays and protective devices; --- GB/T 14598:8 Electrical Relays Part 20: Protection Systems; --- GB/T 14598:23 Electrical relays - Part 21: Vibration, shock, collision and earthquake measuring relays and protective devices Test Part 3: Earthquake Test; ---GB/T 14598:24 Measuring relays and protection devices - Part 24: Power system transient data exchange (COMTRADE) common format; --- GB/T 14598:26 Measuring relays and protection devices - Part 26: Electromagnetic compatibility requirements; --- GB/T 14598:27 Measuring relays and protection devices - Part 27: Product safety requirements; --- GB/T 14598:118 Measuring relays and protection devices - Part 118: Synchronous phasor measurement of power systems; --- GB/T 14598:121 Measuring relays and protection devices - Part 121: Functional requirements for distance protection; ---GB/T 14598:127 Measuring relays and protection devices - Part 127: Functional requirements for over/under voltage protection; --- GB/T 14598:149 Measuring relays and protection devices - Part 149: Functional requirements for electric thermal relays; --- GB/T 14598:151 Measuring relays and protection devices - Part 151: Functional requirements for over/under current protection; --- GB/T 14598:181 Measuring relays and protection devices - Part 181: Functional requirements for frequency protection; --- GB/T 14598:300 General technical requirements for transformer protection devices; ---GB/T 14598:301 Technical Requirements for Continuous Recording Devices in Power Systems; ---GB/T 14598:302 Technical requirements for arc protection devices; ---GB/T 14598:303 General technical conditions for digital motor comprehensive protection device: This document uses the translation method equivalent to IEC 60255-181:2019 "Measuring relays and protection devices - Part 181: Frequency protection Functional Requirements": The Chinese documents that have a consistent correspondence with the international documents normatively cited in this document are as follows: ---GB/T 2900:50-2008 Electrical Terminology General Terminology for Power Generation, Transmission and Distribution (IEC 60050-601:1985, MOD); ---GB/T 2900:92-2015 Electrical terminology Mathematical functions (IEC 60050-103:2009, IDT); ---GB/T 14598:2-2011 Measuring relays and protection devices - Part 1: General requirements (IEC 60255-1:2009, IDT); ---GB/T 20840 (all parts) Transformer [IEC 61869 (all parts)]; ---DL/T 860 (all parts) Power automation communication networks and systems [IEC 61850 (all parts)]: The following editorial changes have been made to this document: --- Add footnote d in Table 4 "f_accuracy is the declared frequency accuracy:"; --- Add footnote c in Table 7 "f'_accuracy is the stated frequency change rate accuracy:"; --- In Table 26 Note 2 "When testing the digital interface, and the sampling frequency of the digital interface is equal to 4800Hz (that is, specified in IEC 61869-9) When the recommended standard value of the 40]" and add "" For 50Hz system, the sampling frequency can be 4000Hz: ” to adapt to the Chinese 50Hz system; ---In many places in the original text, "ω(t)" is used to represent the time-varying phase, and now it is changed to "ϕ(t)" to conform to standard habits and facilitate reading: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by China Electrical Equipment Industry Association: This document is under the jurisdiction of the National Standardization Technical Committee for Measuring Relays and Protection Equipment (SAC/TC154): This document is drafted by: Nanjing Nanrui Jibao Engineering Technology Co:, Ltd:, Xuchang Kaipu Electric Research Institute Co:, Ltd:, Ziguang Measurement and Control Co:, Ltd: Company, Xuchang Kaipu Testing Research Institute Co:, Ltd:, State Grid Zhejiang Electric Power Co:, Ltd:, State Grid Jiangsu Electric Power Co:, Ltd: Company, Guodian NARI Technology Co:, Ltd:, Changyuan Shenrui Relay Automation Co:, Ltd:, Beijing Sifang Relay Automation Co:, Ltd:, Guodian Nanjing Automation Co:, Ltd:, Nanjing NARI Jibao Electric Co:, Ltd:, Xuji Group Co:, Ltd:, China Electric Power Research Institute Co:, Ltd:, Dongfang Electronics Co:, Ltd:, Jicheng Electronics Co:, Ltd:, Jiangsu Jinzhi Technology Co:, Ltd:, Schneider Electric (China) Co:, Ltd: Shanghai Branch, State Grid Hubei Electric Power Co:, Ltd: Electric Power Research Institute, Shanghai Huajian Electric Power Equipment Co:, Ltd: Company, ABB (China) Co:, Ltd:, State Grid Electric Power Research Institute Co:, Ltd: The main drafters of this document: Zhao Xicai, Hu Xiaojing, Hu Jiawei, Li Jia, Qiu Yutao, Chen Hao, Pan Shuyan, Liu Hongjun, Shi Bonian, Xi Hanjiang, Xu Ke, Bai Shenyi, Yu Yue, Wang Zhenhua, Sun Tiande, Gao Liang, Xing Jinlei, Du Zhenan, Zhang Feng, Zhang Qi, Wei Fenqing:IntroductionThe IEC 60255 series of standards specifies the technical requirements and power system solutions for measuring relays and protection devices, as well as related technical requirements for control, monitoring and process interface equipment: IEC 60255-1~IEC 60255-99 specifies the basic general purpose of relays and protection Requirements, mainly including basic functions, mechanical properties, electromagnetic compatibility performance, product safety requirements, general format for transient data exchange, etc:; IEC 60255-100~IEC 60255-199 specifies frequency protection, overcurrent/undercurrent protection, overvoltage/undervoltage protection, distance protection Functional performance requirements and test methods of main protection modules such as IEC 60255-200~IEC 60255-299 in the form of technical reports A special study has been carried out to specify the technical requirements for other protection equipment and related control, monitoring and process interface equipment: The purpose of formulating GB/T 14598 is to specify unified principles consistent with the above characteristics, which are applicable to power generation, transmission and distribution systems: measuring relays and protection devices used in the system: GB/T 14598 is intended to be composed of 17 parts: --- Part 2: General requirements for measuring relays and protection devices: The purpose is to specify the measurement of relays and protective devices and by this General rules and requirements for power system protection schemes such as control, monitoring and process interface equipment composed of these devices: --- Part 3: Insulation coordination requirements and tests for measuring relays and protection devices: The purpose is to specify the measurement of relays and protection General requirements for insulation coordination of installations, including how to choose clearances and creepage distances, voltage tests, insulation resistance measurements, etc: --- Part 8: Protection systems: The purpose is to specify the performance requirements of the entire protection system and its components, which are applicable to various types of protection systems: protective device and devices connected to the protective device that affect it: --- Part 23: Seismic tests: The purpose is to specify the test methods, test conditions, Test severity levels, test procedures and acceptance criteria: --- Part 24: Power system transient data exchange (COMTRADE) general format: The purpose is to define a common data Interchange format for storing data files and exchange media for various types of faults, tests, and simulations: Define data exchange generic It is beneficial to improve the analysis, testing, evaluation and simulation of power system and its protection control measures under fault disturbance conditions: animation level: --- Part 26: Electromagnetic compatibility requirements: The purpose is to specify electromagnetic compatibility requirements for measuring relays and protective devices, including electromagnetic emissions and immunity: --- Part 27: Product safety requirements: The purpose is to specify the basic safety requirements for measuring relays and protective devices so that Hazard from fire, electric shock, or injury to the user is minimal: This section also applies to use with measuring relays and protective devices Test and auxiliary equipment used: --- Part 118: Power system synchrophasor measurement: The purpose is to specify the performance classification of synchrophasor measurements and the performance of each Evaluation methods and performance indicators of steady-state performance and dynamic performance of energy categories: --- Part 121: Functional requirements for distance protection: The purpose is to specify the function and performance evaluation of distance protection on power system lines: minimum requirements for price, and the manner in which performance test results are recorded and published: --- Part 127: Functional requirements for over/under voltage protection: The purpose is to specify the minimum requirements for over/under voltage relays, including protection Specifications for functions, measurement characteristics and delay characteristics: --- Part 149: Functional requirements for electric thermal relays: The purpose is to specify the minimum requirements for electric thermal relays, including protection functions, measurement Specifications for quantitative characteristics and test methods: --- Part 151: Functional requirements for over/under current protection: The purpose is to specify the minimum requirements for over/under current relays, including protection Specifications for functions, measurement characteristics and delay characteristics: --- Part 181: Frequency protection functional requirements: The purpose is to specify the minimum requirements for frequency protection functions and performance evaluation, and to record method of recording and publishing performance test results: --- Part 300: General technical requirements for transformer protection devices: The purpose is to specify the technical requirements and tests of transformer protection devices Methods, inspection rules, signs and labels, packaging, transportation and storage requirements: --- Part 301: Technical requirements for continuous recording devices for power systems: The purpose is to specify the technology of the continuous recording device of the power system Requirements, test methods, inspection rules, labels, packaging, transportation and storage requirements: --- Part 302: Technical requirements for arc protection devices: The purpose is to specify the technical requirements, test methods, inspection Inspection rules, labels, packaging, transportation and storage requirements: --- Part 303: General technical conditions for digital motor comprehensive protection devices: The purpose is to stipulate the comprehensive protection of digital motor General technical requirements, test methods, inspection rules, signs and labels, packaging, transportation and storage requirements for protective devices: Frequency protection is a kind of protection based on the change of the measured frequency as the basis for action judgment, including over-frequency protection, low-frequency protection and frequency protection: Rate of change protection, can be used for low frequency load shedding, over frequency cutting machine, distributed generation protection, etc: Previously, the relevant technical requirements for frequency protection were scattered in national standards and industry standards, and there was still a lack of unified and standardized performance requirements and tests: test method: For this purpose, the translation method is used equivalently to IEC 60255-181:2019 "Measuring relays and protection devices - Part 181: Frequency Protection Function Requirements", which forms this document: This document specifies the minimum requirements for frequency protection functions and performance evaluation, including accuracy under steady-state conditions and performance under dynamic conditions Based on the performance characteristics, the test method to check the performance characteristics and accuracy is given, which provides the basis for the development and test of frequency protection: The illustrations in this document use the original drawings of IEC 60255-181:2019: Some illustrations may be different from my country's drafting standards, but they are not affect understanding: Measuring relays and protection devices Part 181: Functional requirements for frequency protection1 ScopeThis document specifies the minimum requirements for frequency protection functions and performance evaluation, as well as the way to record and publish performance test results: This document covers protection functions based on frequency measurement or frequency rate-of-change measurement, including frequency protection using additional blocking elements: This document specifies factors affecting accuracy under steady-state conditions and performance characteristics under dynamic conditions, as well as methods for verifying performance characteristics and Test method for accuracy: The frequency protection functions involved in this document are shown in Table 1: Table 1 Frequency Protection Names Frequency protection function IEEEStdC37:2 function code IEC 61850-7-4 logical node Low frequency protection 81U PTUF Over frequency protection 81O PTOF Frequency Rate of Change Protection 81R PFRC This document applies to the frequency protection function embedded in the relay protection device, and also applies to other equipment (such as the tripping list of the low-voltage circuit breaker) frequency protection function in solar cells, photovoltaic inverters, energy storage system inverters): This document does not include synchronization function, synchronization detection function: This document does not specify functional descriptions of additional characteristics normally associated with frequency protection functions, such as low voltage blocking, df/dt or Δf/Δt Monitoring, current monitoring or power monitoring (f/P function): This document only deals with the effect of these additional features on the frequency protection function: This document does not involve the frequency measurement output and frequency change rate measurement output provided by the protection device: Furthermore, this document does not explicitly cover frequency protection with current as input excitation, but the principles specified in this document can be extended to this class application to provide guidance: General requirements for measuring relays and protective devices are given in IEC 60255-1:2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: IEC 60050-103 International Electrotechnical Terminology Part 103: Mathematical functions (International Electrotechnical Vocabu- lary-Part 103:Mathematics-Functions) IEC 60050-447 International Electrotechnical Terminology Part 447: Measuring relays (International Electrotechnical Vocabu- lary-Part 447:Measuringrelays) IEC 60050-601 International Electrotechnical Terminology Part 601: General Terminology for Power Generation, Transmission and Distribution (International Electro- technicalVocabulary-Part 601:Generation,transmissionanddistributionofelectricity-General) IEC 60255-1 Measuring relays and protective devices - Part 1: General requirements (Measuringrelaysandprotectione- ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14598.181-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 14598.181-2021_English as soon as 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