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GB/T 41135.1-2021Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 1: General principles and requirements (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

December 31, 2021

Implementation date

July 1, 2022

Scope

GB/T 41135.1-2021 (Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 1: General principles and requirements) is available as an English-translated PDF.

GB/T 41135.1-2021 — This document specifies the minimum requirements (i.e. minimum performance indicators) for fault path indicators and power distribution units and the corresponding classification and tests (power except performance test and communication test). This document applies to fault path indicators (FPIs) and power distribution units (DSUs) (including current and/or voltage sensing of FPIs, DSUs) device). FPI and DSU are a single device or a combination of multiple devices/functions that can be used to detect faults and indicate the location of the fault. Note 1.Fault location refers to the location relative to the FPI/DSU installation point in the grid (upstream or downstream of the FPI/DSU location) or the fault current through the FPI/DSU Orientation of DSU. Considering the characteristics and operating conditions of the power system with the FPI/DSU installed, the fault location can be. --- Derived directly from the FPI/DSU; or ---From a centralized system that uses more FPI or DSU information. Note 2.This document specifies the FPI/DSU classification according to the first "core" classification principle defined in GB/T 41135.2.taking into account the broadest Structure and fault types of distributed power distribution systems, GB/T 41135.2 describes in detail the electrical phenomena and power system responses in faults. therefore, GB/T 41135.2 is mainly to help users how to choose FPI and DSU correctly, while this document mainly focuses on the general principles of FPI and DSU and requirements.

Document preview — GB/T 41135.1-2021

National Standard of the People's Republic of China

Classification: K 41

Issued by: State Administration for Market Regulation, China National Standardization Administration

foreword
Introduction
0.1 Overview
0.2 Relationship of this document to the IEC 61850 series of standards
1 Scope
2 Normative references

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 1 of GB/T 41135 "Current and Voltage Sensors or Detectors for Fault Path Indication". GB/T 41135

The following sections have been published.

--- Part 1.General principles and requirements;

--- Part 2.System applications.

This document uses the redrafted method to modify the use of IEC 62689-1.2016 "Current and voltage sensors or detectors for fault path indication

Part 1.General Principles and Requirements".

Compared with IEC 62689-1.2016, the main structural changes of this document are as follows.

--- Added appendix D, including the insulation level not adopted in the IEC standard in this appendix.

There are technical differences between this document and IEC 62689-1.2016, and the clauses involved in these differences have been specified in the outer margin

The vertical single line (|) in the white position is marked, and a list of the corresponding technical differences and their reasons is given in Appendix A.

The following editorial changes have also been made to this document.

--- The scope has been rewritten;

--- Delete the auxiliary information related to IEC 62689-3 and IEC 62689-4 in the full text;

--- Added the abbreviation "HMI Human-Machine Interface";

--- Adjusted the format of Table 5 and Table 8;

---Adjust "(Un 10%) to (Un-15%)" and "(Un 10%) to (Un-20%)" to "(85%~110%)

Un" and "(80%~110%)Un";

---Improved the symbols and descriptions of some electrical graphics;

--- Adjust Appendix A to Appendix E;

--- References have been adjusted.

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

Introduction

0.1 Overview

GB/T 41135 is a series of standards for current and voltage sensors or detectors for fault path indication. Fault Path Indication

It can be implemented by appropriate equipment or functions, and can be divided into two categories according to their performance. one is the fault path indicator (FPI), the other is the fault path indicator (FPI)

The class is the power distribution unit (DSU).

Different regions of the world have different names for fault path indicators, which also depend on their ability to detect different types of faults.

E.g.

--- Fault detector;

---Intelligent sensor;

--- Fault circuit indicator (FCI);

--- Short circuit indicator (SCI);

--- Earth Fault Indicator (EFI);

--- Test point fault circuit indicator;

---Comprehensive fault indicator.

A simpler version that uses only local information/signals and/or local communication for fault path indication is called FPI, a more advanced version

Known as DSU. The latter is based on IEC 60870-5 and IEC 61850 communication protocols and is designed for smart grids. compared to transformers

In other words, digital communication technology will continue to change with future development needs.

Since such devices are not yet widely used in the industry, in-depth experience on the deep integration of electronic devices with transformers is yet to be developed.

Accumulate on a broad basis.

In addition to the basic functions of FPI, DSU can optionally integrate other auxiliary functions, such as.

--- Voltage with/without detection function of medium voltage network automation, whether or not distributed energy resources are present [not used for fault confirmation (according to the

fault detection method used, fault acknowledgment can be used as a basic FPI function), nor is it used for safety protection covered by IEC 61243-5.

All relevant aspects];

---In various practical applications (for example. medium voltage grid automation, monitoring power flow, etc.), measuring voltage, current, active power, reactive power

power, etc.;

--- Manage the smart grid with suitable interfaces (e.g. voltage control and undesired

island operation);

--- Output the collected information in situ through a suitable interface;

--- Remote transmission of collected information;

---other.

A general FPI schematic is shown in Figure 1.DSUs usually have a more complex structure.

Index number description.

A---current sensor (there is also a voltage sensor if necessary), monitoring single-phase or three-phase;

B---Signal transmission between sensor and electronic unit;

C---In-place indicators (indicators, LEDs, markers, etc.);

D---Analog, digital and/or communication input/output for remote signaling/remote control (hard wired and/or wireless);

E---Connect with the field device;

F---Signal conditioning and indicating unit;

G---Power supply.

Current sensors can detect fault current paths without any circuit connection to each phase (eg. feed-through current sensors, magnetic field sensors).

FPI does not have to have all of the above functions, it depends on its own complexity and technology. But at least one of the functions in C or D.

Figure 1 General structure of FPI

0.2 Relationship of this document to the IEC 61850 series of standards

IEC 61850 is a set of international standards for communications and systems supporting power automation.

The GB/T 41135 series of standards also introduces a set of special namespaces to support the integration of FPI/DSU and power automation.

In addition, this series of standards also defines appropriate data models and different communication interface profiles to support different applications of FPI/DSU

Scenes.

For the most complex versions of FPIs (eg. DSUs commonly used in smart grids), some application scenarios rely on extended substation's

concept, this extended substation concept is used to realize intelligent electronic devices (IEDs) distributed on medium voltage feeders and located in the main substation.

Between intelligent electronic devices (IEDs), IEC 61850 is used for communication. This configuration mode will not be restricted to FPI/DSU devices, but will

Contains the characteristics required for the sub-substations where the main substation extends to the outgoing lines.

Fault path indication with current and voltage sensors or

Detectors Part 1.General Principles and Requirements

1 Scope

This document specifies the minimum requirements (i.e. minimum performance indicators) for fault path indicators and power distribution units and the corresponding classification and tests (power

except performance test and communication test).

This document applies to fault path indicators (FPIs) and power distribution units (DSUs) (including current and/or voltage sensing of FPIs, DSUs)

device). FPI and DSU are a single device or a combination of multiple devices/functions that can be used to detect faults and indicate the location of the fault.

Note 1.Fault location refers to the location relative to the FPI/DSU installation point in the grid (upstream or downstream of the FPI/DSU location) or the fault current through the FPI/DSU

Orientation of DSU. Considering the characteristics and operating conditions of the power system with the FPI/DSU installed, the fault location can be.

--- Derived directly from the FPI/DSU; or

---From a centralized system that uses more FPI or DSU information.

Note 2.This document specifies the FPI/DSU classification according to the first "core" classification principle defined in GB/T 41135.2.taking into account the broadest

Structure and fault types of distributed power distribution systems, GB/T 41135.2 describes in detail the electrical phenomena and power system responses in faults. therefore,

GB/T 41135.2 is mainly to help users how to choose FPI and DSU correctly, while this document mainly focuses on the general principles of FPI and DSU

and requirements.

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.

GB/T 156 standard voltage (GB/T 156-2017, IEC 60038.2009, MOD)

GB/T 311.1 Insulation Coordination Part 1.Definitions, Principles and Rules (GB/T 311.1-2012, IEC 60071-1.2006,

MOD)

GB/T 2423.1 Environmental Testing of Electrical and Electronic Products Part 2.Test Methods Test A. Low Temperature (GB/T 2423.1-

2008, IEC 60068-2-1.2007, IDT)

GB/T 2423.2 Environmental Testing of Electrical and Electronic Products Part 2.Test Methods Test B. High Temperature (GB/T 2423.2-

2008, IEC 60068-2-2.2007, IDT)

GB/T 2423.3 Environmental Test Part 2.Test Method Test Cab. Constant Damp Heat Test (GB/T 2423.3-2016,

IEC 60068-2-78.2012, IDT)

GB/T 2423.4 Environmental testing of electrical and electronic products Part 2.Test method Test Db. Alternating damp heat (12h 12h cycle

Ring) (GB/T 2423.4-2008, IEC 60068-2-30.2005, IDT)

GB/T 2423.10 Environmental Testing Part 2.Test Methods Test Fc. Vibration (Sinusoidal) (GB/T 2423.10-2019,

IEC 60068-2-6.2007, IDT)

GB/T 2423.22 Environmental Test Part 2.Test Method Test N. Temperature Change (GB/T 2423.22-2012,

IEC 60068-2-14.2009, IDT)

GB/T 2423.55 Environmental testing of electrical and electronic products - Part 2.Environmental testing test Eh. Hammer test

(GB/T 2423.55-2006,IEC 60068-2-75.1997,IDT)

GB/T 4208 Enclosure Protection Level (IP Code) (GB/T 4208-2017, IEC 60529.2013, IDT)

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 156 · GB/T 156-2017 · IEC 60038.2009 · GB/T 311.1 · GB/T 311.1-2012 · IEC 60071 · GB/T 2423.1 · IEC 60068 · GB/T 2423.2 · GB/T 2423.3 · GB/T 2423.3-2016 · GB/T 2423.4 · GB/T 2423.4-2008 · GB/T 2423.10 · GB/T 2423.10-2019 · IEC 60529.2013

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