GB/T 14598.118-2021Measuring relays and protection equipment - Part 118: Synchrophasor for power systems - Measurements (English PDF)

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 of Standardization Documents"

drafted:

This document is part 118 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 requirements for digital motor comprehensive protection device:

This document uses the translation method equivalent to IEC /IEEE60255-118-1:2018 "Measuring Relays and Protection Devices Part 118-1"

Part: Synchrophasor Measurement of Power Systems:

The Chinese documents that have a consistent correspondence with the international documents normatively cited in this document are as follows:

---GB/T 14598:2-2011 Measuring relays and protection devices - Part 1: General requirements (IEC 60255-1:2009,

IDT):

The following editorial changes have been made to this document:

--- For the coordination of the existing series of standards, the standard name was changed to "Measuring relays and protection devices - Part 118: Power system synchronization

Phasor Measurement";

--- In B:2, the formula numbers are discontinuous, and the formula numbers are modified and increased in turn;

---G:6:1, "For example, for A0:1 level, the test system should have a test uncertainty ratio of at least 0:025% TVE", which

The original text of "0:025%" was mistakenly read as "0:04%";

---I:4, "For these tests, a TVE of 3% requires the test system to have a TVETUR of at least 0:75%", where

"0:75%", the original text was mistakenly "0:3%";

---In order to facilitate the readers to understand the meaning of sending and reporting, and in line with Chinese usage habits, an explanation is added in 4:3:1 "In this document

, the terms 'report' and 'upload' are used interchangeably":

Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:

Introduction

The 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:

Synchrophasor measurement is widely used in power system dynamic monitoring, state estimation, regional stability control and system analysis and other fields:

The safe operation of the power grid plays an important role:

This document specifies the performance classification of synchrophasor measurements and the evaluation methods and properties of steady-state performance and dynamic performance for each performance class:

Performance metrics including accuracy under steady state conditions, measurement bandwidth under dynamic conditions, performance phase and magnitude during system frequency ramps

Performance requirements and reporting delay requirements during step change, and test methods for verifying steady-state performance, dynamic performance and reporting delay are given:

The development and experimentation of synchrophasor measurements provided the basis:

The illustrations in this document use the original drawings of IEC /IEEE60255-118-1:2018, and some illustrations may be different from my country's drafting standards:

But it does not affect understanding:

Measuring relays and protection devices

Part 118: Synchrophasor measurements in power systems

1 Scope

This document defines the measurements of synchrophasor, frequency, and rate of change of frequency, specifies the time scale and synchronization requirements for the three measurement quantities, and also specifies

Methods for evaluating these measurements under steady-state and dynamic conditions and for compliance with standards:

The phasor measurement unit (PMU) defined in this document can be an independent physical unit or a function within a physical unit:

energy module: This document does not limit the hardware and software implementation of the PMU and the calculation method of the phasor, frequency and frequency change rate:

This document applies to synchrophasor measurement systems used in power systems:

2 Normative references

The 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 60255-1 Measuring relays and protection devices - Part 1: General requirements (Measuringrelaysandprotection

equipment-Part 1:Commonrequirements)

IEEEStdC37:90TM IEEE Standard for Relays and Relay Systems Related to Power Equipment (IEEE Standard for

RelaysandRelaySystemsAssociatedwithElectricPowerApparatus)

3 Terms, Definitions, Symbols and Abbreviations

3:1 Terms and Definitions

The following terms and definitions apply to this document:

The ISO , IEC and IEEE maintain terminology database addresses used in this paper are as follows:

---IEC Encyclopedia URL: http://www:electropedia:org/

---ISO Online Browsing Platform URL: http://www:iso:org/obp

---IEEE Standard Online Dictionary URL: http://ieeexplore:ieee:org

3:1:1

Frequency error frequencyerror; FE

The difference between the frequency measurement and the reference value at the same instant:

3:1:2

leap second leapsecond

In order to keep the Coordinated Universal Time UTC close to the mean solar time, the adjustment of the Coordinated Universal Time, the increase or decrease of 1s:

3:1:3

measurand to be measured

A measured physical or electrical quantity, property or state: