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GB/T 14598.121-2017: Measuring relays and protection equipment -- Part 121: Functional requirements for distance protection
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Measuring relays and protection equipment -- Part 121: Functional requirements for distance protection
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GB/T 14598.121-2017
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Basic data | Standard ID | GB/T 14598.121-2017 (GB/T14598.121-2017) | | Description (Translated English) | Measuring relays and protection equipment -- Part 121: Functional requirements for distance protection | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K45 | | Classification of International Standard | 29.120.70 | | Word Count Estimation | 122,172 | | Date of Issue | 2017-07-31 | | Date of Implementation | 2018-02-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 14598.121-2017: Measuring relays and protection equipment -- Part 121: Functional requirements for distance 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 121. Functional requirements for distance protection
ICS 29.120.70
K45
National Standards of People's Republic of China
Measuring relays and protection devices
Part 121. Distance protection requirements
Part 121.Functionalrequirementsfordistanceprotection
(IEC 60255-121.2014, IDT)
2017-07-31 Posted
2018-02-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 functional specifications 2
4.1 Overview 2
4.2 Enter the amount of incentive/incentive 3
4.3 input switch 3
4.4 Functional Logic 4
4.5 output switch 5
4.6 Additional Effects Features/Situations 5
5 Performance Specifications 6
5.1 Overview 6
5.2 Effective range and scope of work 6
5.3 Steady-state conditions under the basic characteristics of accuracy 7
5.4 Dynamic Performance 8
5.5 Harmonic performance 10
Performance at Frequency Offset 10
5.7 double-ended power supply test 11
5.8 pairs of transformers (CT, VT and CVT) requirements 12
6 functional test 15
6.1 Overview 15
6.2 Rated frequency characteristics of the accuracy of the test 15
6.3 Dynamic Performance 33
6.4 Harmonic performance 53
6.5 Performance at non-nominal frequency 59
6.6 Double Feed Test 66
7 Documentation Requirements 77
7.1 Type Test Report 77
7.2 Documentation 77
Appendix A (Informative) Impedance Characteristics 78
Appendix B (informative) distance protection zone under the development of fault timer behavior 85
Appendix C (Normative) Rating Example 87
Appendix D (Normative) Means, Median, and Mode
Appendix E (informative) CT saturation and its impact on distance protection 91
Appendix F (informative) An informative guide to testing distance-protected CT requirements specifications
Appendix G (informative) distance protection of CT core cross-sectional area to determine the information guidelines 99
Appendix H (Normative) Voltage and current representation of the common set point P value of the calculation 104
Appendix I (Normative) Gradient accuracy of the basic characteristics of the test method 107
Appendix J (Normative) Fault starting angle of the definition of 115
Appendix K (Normative) Capacitive Voltage Transformer Model
Foreword
"Measuring relays and protection devices" is divided into the following sections.
--- GB/T 14598.1 electrical relays Part 23. Contact performance;
--- GB/T 14598.2 measuring relays and protection devices Part 1. General requirements;
--- GB/T 14598.3 electrical relays Part 5. Measuring relays and protective devices with the requirements of insulation and testing;
--- GB/T 14598.4 electrical relays Part 14. Electrical relay contact life test contact excellent load
First value
--- GB/T 14598.5 electrical relays Part XV. Electrical relay contact life test test equipment characteristics
specification;
--- GB/T 14598.6 electrical relays Part XVIII with or without general-purpose relay size;
--- GB/T 14598.8 electrical relays Part 20. Protection system;
--- GB/T 14598.24 Measuring relays and protection equipment Part 24. Power System Transient Data Exchange (COMTRADE)
Common format
--- GB/T 14598.26 Measuring relays and protection devices - Part 26. Electromagnetic compatibility requirements;
--- Measuring relays and protection devices GB/T 14598.27 Part 27. Product safety requirements;
--- GB/T 14598.121 Measuring relays and protection equipment Part 121. Distance protection requirements;
--- GB/T 14598.127 Measuring relays and protection devices Part 127. Over/under voltage protection function requirements;
--- GB/T 14598.149 Measuring relays and protection devices Part 149. Functional requirements of electric relays;
--- Measuring relays and protection equipment GB/T 14598.151 Part 151. Over/under current protection function requirements;
--- GB/T 14598.300 computer transformer protection device general technical requirements;
--- GB/T 14598.301 microcomputer generator transformer fault recording device technical requirements;
--- GB/T 14598.302 arc protection device technical requirements;
--- GB/T 14598.303 digital motor general protection device general technical conditions.
This section GB/T 14598 Part 121.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section uses the translation method is equivalent to using IEC 60255-121.2014 "Measuring relays and protection devices Part 121. Distance protection
Functional Requirements "(in English).
This part is proposed by China Electrical Equipment Industry Association.
This part of the National Measurement Relay and Protection Equipment Standardization Technical Committee (SAC/TC154) centralized.
This part of the main drafting unit. Nanrui Nanjing Electric Co., Ltd. following security, Xuchang Cape Detection Technology Co., Ltd., Beijing Sifugi following Paul from
Automation Co., Ltd., Xuchang Cape Electric Institute, Xu JI Electric Co., Ltd., Northeast Electric Power Design Institute Co., Ltd., Hebei Network
Provincial Power Company, State Grid Shandong Electric Power Company, State Grid Hebei Electric Power Co., Ltd., State Power Nanjing Automation Co., Ltd., Beijing Ziguang Measurement
Control Co., Ltd., Chang Yuan Shenzhen Rui Bao Automation Co., Ltd., Jicheng Electronic Co., Ltd., Oriental Electronics Co., Ltd., State Grid Electric Power
Scientific Research Institute, Harbin Electric Group Acheng Relay Co., Ltd., Hebei Beheng Electric Technology Co., Ltd., ABB (China) Limited
Company, Henan Electric Power Survey and Design Institute, Alstom Grid Technology Center Co., Ltd., Schneider Electric (China) Co., Ltd., State Power NARI
Technology Co., Ltd., Jiangsu Provincial Power Company.
The main drafters of this section. Zhao Xicai, Li Quanxi, Zhang Yue goods, Li Zhiyong, Li Baowei, Wang Ying, Qi Shaojuan, Wang Xin, Zhang Jie, Chen Fufeng,
Ge Rong Shang, Liu Hongjun, Wei Xin, Quan Xianjun, Yu Bo, Chen Yanhe, Tian Jianjun, Li Yan, Sun Jing, Liu Wei, Yang Lizhi, Zhang Qingwei, Chen Hao.
Measuring relays and protection devices
Part 121. Distance protection requirements
1 Scope
GB/T 14598 provisions of this part of the general for, but not limited to effectively grounded three-phase power line distance protection work
The minimum requirement for energy and performance evaluation. This section also specifies the way to record and publish performance test results.
This part covers the distance protection functions whose operating characteristics can be defined on the impedance plane, including protection function specifications, measurement characteristics, selection
Phase, Directionality, Startup and Delay Characteristics.
This section includes test methods for testing performance characteristics and accuracy. This section specifies the accuracy of the factors under steady-state conditions
And performance characteristics under dynamic conditions. This section also includes the protection requirements of the transformer.
This section covers the distance protection functions are as follows.
IEEE/ANSIC37.2 Function Code IEC 61850-7-4 Logical Node
Phase Distance Relay 21 PDIS
Ground distance relay 21G PDIS
This section does not specify the additional functions normally associated with digital distance relays, such as oscillatory lockup (PSB), out of step tripping
(OST), Voltage Transformer (VT) monitoring, closing in Fault Protection (SOTF), Accelerated Trip after Reclosing (TOR), Inactive Grounding
Over-line fault protection logic in the network, trip switching logic. This section only deals with the impact of these additional features on distance protection. In series
Compensation line protection beyond the scope of this section.
General requirements for measuring relays and protection devices are specified in GB/T 14598.2.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Measuring relays and protection equipment Part 1. General requirements (IEC 60255-1.2009, IDT)
IEC 60050 (all parts) International Electrotechnical Vocabulary
IEC 61850 (all parts) Electric Power Utilities Automation Communication Networks and Systems
systemsforpowerutilityautomation)
Instrumentation transformers - Part 2. Additional requirements for current transformers (Instrumenttransformers -
Part 2.Additionalrequirementsforcurrenttransformers)
IEC 61869-5-2011 Transformers - Part 5. Supplementary technical requirements for capacitive voltage transformers (Instrumenttrans-
formers-Part 5.Additionalrequirementsforcapacitorvoltagetransformers)
3 Terms and definitions
IEC 60050-444, IEC 60050-447 and IEC 60050-448 define the following terms and definitions apply to this document.
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