29.240.01 - Power transmission and distribution networks in general
ICS 29.240.01 Details
Power transmission and distribution networks in general
Starkstromanlagen im allgemeinen
Reseaux de transport et de distribution de courant en general
Omrežja za prenos in distribucijo električne energije na splošno
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- Technical specification12 pagesEnglish languagesale 15% off
IEC TS 62898-1:2017(E) provides guidelines for microgrid projects planning and specification. Microgrids considered in this document are alternating current (AC) electrical systems with loads and distributed energy resources (DER) at low or medium voltage level. This document does not cover direct current (DC) microgrids.
Microgrids are classified into isolated microgrids and non-isolated microgrids. Isolated microgrids have no electrical connection to a wider electric power system. Non-isolated microgrids can act as controllable units to the electric power system and can operate in the following two modes:
- grid-connected mode;
- island mode.
This document will cover the following areas:
- microgrid application, resource analysis, generation forecast, and load forecast;
- DER planning and microgrid power system planning;
- high level technical requirements for DER in microgrids, for microgrid connection to the distribution system, and for control, protection and communication systems;
- evaluation of microgrid projects.
- Technical specification78 pagesEnglish languagesale 15% off
- Technical specification33 pagesEnglish languagesale 15% off
IEC 61557-14:2023 defines special requirements for test and measurement equipment used to determine the electrical safety of electrical equipment of machinery in accordance with IEC 60204-1.
This International Standard is to be used in conjunction with IEC 61557-1:2019.
IEC 61557-14:2023 cancels and replaces the first edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) clarifying the introduction;
b) replaced "dielectric strength" by "voltage test";
c) requirement for maximum output current has been added in 4.2.6.1;
d) tripping time at electrical switching activated by two-hand operation has been added in 4.2.6.1;
e) additional time limiting capability for the protection against electric shock for test persons and bystanders in 4.2.6.2;
f) updated references for safety testing;
g) alignment of the structure with that of the whole IEC 61557 series.
- Standard33 pagesEnglish and French languagesale 15% off
IEC 61557-13:2023 defines special performance requirements for hand-held and hand manipulated current clamps and sensors for measurement of leakage currents in electrical distribution systems up to 1 000 V AC and 1 500 V DC taking into account the influence of high external low-frequency magnetic fields and other influencing quantities. See Annex A for examples of measurement applications.
This document does not apply to current clamps or sensors that are used in combination with devices for insulation fault location in accordance with IEC 61557-9, unless it is specified by the manufacturer.
IEC 61557-13:2023 cancels and replaces the first edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the term "fixing device" has been removed;
b) the measuring range was changed to a display range, the indication of DC or peak values has been added in 4.1;
c) the frequency for the test of sensitivity for low-frequency magnetic fields has been defined in 4.2;
d) the specified measuring range is now defined as the range of indicated values based on the operating uncertainty in 4.3;
e) alignment of the structure with that of the whole IEC 61557 series;
f) the variation E12 (maximum load current), may be specified according to the manufacturer’s specification.
- Standard41 pagesEnglish and French languagesale 15% off
IEC 61557-7:2019 is available as IEC 61557-7:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-7:2019 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems. Indication of the phase sequence can be mechanical, visual and/or audible. This document does not apply to additional measurements for other quantities. It does not apply to monitoring relays. IEC 61557-7:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following changes with respect to the previous edition:
a) alignment of the structure with that of the whole IEC 61557 series;
b) updated requirements in 4.3 in accordance with new editions of IEC 61010-1 and IEC 61010-031;
c) the information on markings was extended;
d) the information on the operating instructions was extended;
e) complement to the information on the testing of leads;
f) test leads for insulated conductors were introduced;
g) Annex B was added with information on phase sequence tests and indications.
- Standard75 pagesEnglish and French languagesale 15% off
- Standard28 pagesEnglish and French languagesale 15% off
IEC TS 62898-3-4:2023 provides technical requirements for the monitoring and control of microgrids. This document applies to non-isolated or isolated microgrids integrated with distributed energy resources. This document describes the specific recommendations for low-voltage (LV) and medium-voltage (MV) microgrids.
This document focuses on standardization of the architecture, functions, and operation of microgrid monitoring and control systems (MMCS). It teases out the general functions of MMCS and provides technical requirements for MMCS. This document includes the following aspects of MMCS:
• system architecture,
• information exchange with other devices/functions in microgrid,
• performance requirement,
• main function descriptions.
- Technical specification40 pagesEnglish languagesale 15% off
IEC TS 62898-3-3:2023 deals with frequency and voltage stabilization of AC microgrids by dispatchable loads, which react autonomously on variations of frequency and voltage with a change in active power consumption. Both 50 Hz and 60 Hz electric power systems are covered. This document gives requirements to emulate the self-regulation effect of loads including synthetic inertia.
The loads recommended for this approach are noncritical loads, this means their power modulation will not significantly affect the user as some kind of energy storage is involved which effectively decouples end energy use from the electricity supply by the electric network. The self-regulation of loads is beneficial both in island mode and grid-connected mode. This document gives the details of the self-regulation behaviour but does not stipulate which loads shall participate in this approach as an optional function.
This document covers both continuously controllable loads with droop control and ON/OFF switchable loads with staged settings. The scope of this document is limited to loads connected to the voltage level up to 35 kV. Reactive power for voltage stabilization and DC microgrids are excluded in this document.
- Technical specification49 pagesEnglish languagesale 15% off
The European Standard EN 50110 series consists of two parts:
- the first part, EN 50110 1, contains minimum requirements valid for all CENELEC countries and some additional informative annexes dealing with safe working;
- the second part, prEN 50110 2, is a set of national annexes (one per each member country) which specify either additional safety requirements actually in force or national supplements to the minimum requirements set by EN 50110-1.
The national annexes are the responsibility of an have to be maintained by the respective member country.
National Committees shall notify CENELEC of any changes needed to their national annex.
- Standard50 pagesEnglish languagesale 10% offe-Library read for1 day
This document is applicable to all operation of and work activity on, with, or near electrical installations.
These are electrical installations operating at voltage levels from and including extra-low voltage up to and
including high voltage.
This latter term includes those levels commonly referred to as medium and extra-high voltage.
These electrical installations are designed for the generation, transmission, conversion, distribution and
use of electrical power. Some of these electrical installations are permanent and fixed, such as a distribution
installation in a factory or office complex, others are temporary, such as on construction sites and others
are mobile or capable of being moved either whilst energised or whilst not energised nor charged. Examples
are electrically driven excavating machines in quarries or open-cast coal sites.
This document sets out the requirements for the safe operation of and work activity on, with, or near these
electrical installations. The requirements apply to all operational, working and maintenance procedures.
They apply to all non-electrical work such as building work near to overhead lines or underground cables
as well as electrical work, when there is a risk of electrical danger.
This document does not apply to ordinary persons when using installations and equipment, provided that
the installations and equipment comply with relevant standards and are designed and installed for use by
ordinary persons.
This document has not been developed specifically to apply to the electrical installations listed below.
However, if there are no other rules or procedures, the principles of this document could be applied to them:
— on any aircraft and hovercraft moving under its own power, (these are subject to International Aviation
laws which take precedence over national laws in these situations);
— on any sea going ship moving under its own power, or under the direction of the master, (these are
subject to International Marine laws which take precedence over national laws in these situations);
— electronic telecommunications and information systems;
— electronic instrumentation, control and automation systems;
— at coal or other mines;
— on off-shore installations subject to International Marine laws;
— on vehicles;
— on electric traction systems;
— on experimental electrical research work.
- Standard55 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60050-692:2017 gives the terminology used when considering the dependability and quality of service of electric power systems. The concepts are categorized according to the following sections:
- system concepts;
- operating states of electric power systems;
- failures in electric power systems;
- outages of electric power systems equipment;
- outage occurrences in electric power systems;
- state durations and availability related concepts;
- interruptions in electric power systems;
- selected customer interruption measures;
- bulk electric power system load/energy curtailments;
- bulk electric system failures and measures;
- supply performance measures.
This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.
- Standard140 pagesEnglish and French languagesale 10% offe-Library read for1 day
- Standard127 pagesEnglish and French languagesale 15% off
This document is applicable to all operation of and work activity on, with, or near electrical installations. These are electrical installations operating at voltage levels from and including extra-low voltage up to and including high voltage. This latter term includes those levels commonly referred to as medium and extra-high voltage. These electrical installations are designed for the generation, transmission, conversion, distribution and use of electrical power. Some of these electrical installations are permanent and fixed, such as a distribution installation in a factory or office complex, others are temporary, such as on construction sites and others are mobile or capable of being moved either whilst energised or whilst not energised nor charged. Examples are electrically driven excavating machines in quarries or open-cast coal sites. This document sets out the requirements for the safe operation of and work activity on, with, or near these electrical installations. The requirements apply to all operational, working and maintenance procedures. They apply to all non-electrical work such as building work near to overhead lines or underground cables as well as electrical work, when there is a risk of electrical danger. This document does not apply to ordinary persons when using installations and equipment, provided that the installations and equipment comply with relevant standards and are designed and installed for use by ordinary persons. This document has not been developed specifically to apply to the electrical installations listed below. However, if there are no other rules or procedures, the principles of this document could be applied to them: - on any aircraft and hovercraft moving under its own power, (these are subject to International Aviation laws which take precedence over national laws in these situations); - on any sea going ship moving under its own power, or under the direction of the master, (these are subject to International Marine laws which take precedence over national laws in these situations); - electronic telecommunications and information systems; - electronic instrumentation, control and automation systems; - at coal or other mines; - on off-shore installations subject to International Marine laws; - on vehicles; - on electric traction systems; - on experimental electrical research work.
- Standard55 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 60050 gives the general terminology used for electrical installations such as
those of residential, industrial or commercial premises. It does not cover systems for distribution
of energy to the public or power generation and transmission for such systems. This new edition
reviews and complements the previous one. An important aim of the revision is to achieve
compliance with IEC 61140:2016. In addition, some new terms have been added from
IEC 60364-8-1:2014 and IEC 60364-8-2:2018. It has the status of a horizontal publication in
accordance with IEC Guide 108, Guidelines for ensuring the coherence of IEC publications –
Horizontal functions, horizontal publications and their application.
This terminology is consistent with the terminology developed in the other specialized parts of
the IEV.
This horizontal publication is primarily intended for use by technical committees in the
preparation of IEC publications in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
horizontal publications in the preparation of its publications
- Standard126 pagesEnglish and French languagesale 10% offe-Library read for1 day
IEC 60050-614:2016 gives the general terminology used in the generation, transmission and distribution of electricity, as well as general terms pertaining to specific applications and associated technologies. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.
- Standard119 pagesEnglish and French languagesale 10% offe-Library read for1 day
- Standard105 pagesEnglish and French languagesale 15% off
- Corrigendum3 pagesEnglish languagesale 10% offe-Library read for1 day
IEC TR 62898-4:2023 which is a technical report, provides a set of use cases related to microgrids, as a form of "decentralized energy system". Decentralized energy systems are small energy systems containing loads and distributed energy resources (generation, storage) with decentralized management for energy supply. This document completes the SC 8B roadmap for decentralized electrical energy systems. The goal is to explain the methodology retained on the microgrid sub-domain, which is a kind of decentralized system. This methodology, based on IEC 62913-1, describes high-level use cases (business use cases) covering the main typical usage of microgrids, and details some of them through system use cases. The proposed list of use cases is a first version, proposed for review; the goal is to cover all use cases with the same level of depth.
- Technical report65 pagesEnglish languagesale 15% off
IEC TR 63410:2023, which is a Technical Report, aims to prepare a road map for categorizing Decentralized Electrical Energy Systems and identifying gaps in the existing standards relevant to Decentralized Electrical Energy Systems. The task of IEC Subcommittee 8B is to develop IEC publications enabling the development of secure, reliable and cost-effective systems with decentralized management for electrical energy supply, which are alternative, complementary or precursors to traditional large interconnected and highly centralized systems. This includes but is not limited to AC, DC, AC/DC hybrid decentralized electrical energy system, such as distributed generation, distributed energy storage, dispatchable loads, virtual power plants and electrical energy systems having interaction with multiple types of distributed energy resources.
- Technical report85 pagesEnglish languagesale 15% off
IEC TR 61000-2-15: 2023 which is a Technical Report, addresses in particular the following main phenomena, which affect the power quality in modern distribution systems with high penetration of power electronics converters. As some aspects of the subject have already been addressed in the past, considering the evolution of the LV and MV networks, this document focuses on the following aspects:
resonances in the network, modelling and on-site validation;
supraharmonics and measurements issues;
impact of increased number of power electronic converters;
stability and instability issues for the equipment to be connected
The target phenomena and conditions of this document are the following:
frequency: ≤ 2 kHz, 2 kHz to 9 kHz, ≥ 9 kHz;
voltage levels: LV, MV;
harmonic sources: all types of converters (EV battery chargers, appliances, etc.…).
Some of these frequency ranges have already been standardized in some countries (Japan, Germany, Switzerland, etc.), but the resulting phenomena developed will benefit being described in more details, with a focus on the interaction between the converters and the electrical networks. The case of the presence of a large number of converters is also at stake. Some complex phenomena can also arise when the full system is not stable anymore. NOTE Whereas it is expected that the models and derived calculations form this document can be applied to the Americas electrical systems its formal validation studies are still pending.
- Technical report105 pagesEnglish languagesale 15% off
1.1 Scope
This document specifies the main characteristics of the voltage at a network user's supply terminals in public low voltage, medium, high, and extra-high voltage AC electricity networks under normal operating conditions. This document specifies the limits or values within which the voltage characteristics can be expected to remain at any supply terminal in public European electricity networks, only.
NOTE 1 If non-public networks (e.g. residential quarters, energy communities, office centres, shopping centres) have similar end-users as public networks, it is strongly advised to apply the same requirements as for public networks.
NOTE 2 Industrial networks are excluded from the scope of EN 50160, only the connection to the supply terminals of the public network is relevant, here.
This document does not apply under abnormal operating conditions, including the following:
a) a temporary supply arrangement to keep network users supplied during conditions arising as a result of a fault, maintenance and construction work, or to minimize the extent and duration of a loss of supply.
b) in the case of non-compliance of a network user's installation or equipment with the relevant standards or with the technical requirements for connection, established either by the public authorities or the network operator, including the limits for the emission of conducted disturbances.
NOTE 4 A network user’s installation can include load and generation.
c) in exceptional situations, in particular:
1) exceptional weather conditions and other natural disasters;
2) third party interference;
3) acts by public authorities,
4) industrial actions (subject to legal requirements);
5) force majeure;
6) power shortages resulting from external events.
The voltage characteristics given in this document refer to conducted disturbances in public electric power networks. They are not intended to be used as electromagnetic compatibility (EMC) levels or product emission limits.
Power quality is related to EMC in several ways – especially because compliance with power quality requirements depends on the control of cumulative effect of electromagnetic emissions from all/multiple equipment and/or installations. Therefore, the voltage characteristics given in this document gives guidance for specifying requirements in equipment product standards and in installation standards.
NOTE 5 The performance of equipment might be impaired if it is subjected to supply conditions which are not specified in the equipment product standard.
NOTE 6 This document can be superseded in total or in part by the terms of a contract between the individual network user and the network operator.
NOTE 7 The sharing of complaint management and problem mitigation costs between the involved parties is outside the scope of EN 50160.
Measurement methods to be applied in this document are described in EN 61000 4 30.
1.2 Object
The object of this document is to define, describe and specify the characteristics of the supply voltage concerning:
a) Frequency;
b) Magnitude;
c) Waveform;
d) Symmetry of the line voltages.
This document also covers the continuous characteristics of the supply voltage and other foreseeable phenomena which may influence the voltage characteristics, such as e.g. operational communication, monitoring or measurement signals which are transmitted via power lines.
These characteristics are subject to variations during the normal operation of a supply system due to changes of load, disturbances generated by certain equipment and the occurrence of faults which are mainly caused by external events.
The characteristics vary in a manner which is random in time, with reference to any specific supply terminal, and random in location, with reference to any given instant of time. Because of these variations, the values given in this document for the characteristics can be expected to be exceeded on a small number of occasions.
[...]
- Standard53 pagesEnglish languagesale 10% offe-Library read for1 day
The purpose of this document is to provide technical guidance for tests on generating units and interface protection to evaluate their electrical characteristics.
NOTE 1 Mechanical issues are taken into account as far as they influence the electrical characteristics.
The evaluation results are intended to be used to demonstrate conformity of generating units to technical requirements for grid connection. In this context the evaluation results can also be used as part of a certification programme.
NOTE 2 Besides the type test results of the generating unit all additional elements for connection to the grid (e.g. transformer, cabling, multiple units) are considered in the evaluation of the final installation of a generating plant.
The requirements to be evaluated are covered in the following standardization documents:
– EN 50549 1:2019: Requirements for generating plants to be connected in parallel with distribution networks - Part 1: connection to a LV distribution network - Generating plants up to and including Type B
– EN 50549 2:2019: Requirements for generating plants to be connected in parallel with distribution networks - Part 2: Connection to a MV distribution network - Generating plants up to and including Type B
If grid connection requirements are dealt with in other documents or for other generating module types, where no specific testing procedure is provided, testing methods of this document can be used if applicable.
This document provides evaluation criteria for the conformity assessment of generating units with respect to the above mentioned standardization documents, based on type testing. However, some requirements are applicable on the generating plant level. The assessment of the conformity to these plant requirements are out of the scope of this document. Nevertheless, this document may be used to show the capabilities of a generating unit to be used in a plant.
As a consequence, it is possible that the conformity assessment of a generating unit does not cover all aspects of the above-mentioned standardization documents, typically when a requirement is evaluated on a plant level. Therefore, the conformity assessment report indicates clearly which clauses of this document are covered and which clauses are not covered.
This document recognizes the existence of specific technical test requirements within several member states that must be complied with.
- Standard168 pagesEnglish languagesale 10% offe-Library read for1 day
IEC TS 63383:2022 deals with cybersecurity related to measuring devices (PMD according to IEC 61557-12 and PQI according to IEC 62586-1) and devices for data collection (devices according to IEC 62974-1) that are intended to be installed in restricted access areas.
This document deals with cybersecurity aspects (e.g. device hardening or device resilience) of device(s) used for power metering and monitoring, power quality monitoring, data collection and analysis, but does not cover requirements for organisational cybersecurity (e.g. end-user security policy).
This document is a first attempt to develop awareness by manufacturers and other relevant stakeholders about cybersecurity aspects and provide basic guidance for achieving the appropriate security mitigation against vulnerabilities to security threats:
– in coherence with device/system approaches described in relevant standards such as IEC 62443 (all parts) and ISO/IEC 27001,
– based on generic system use-cases.
This document does not cover billing meters covered by the IEC 62053-2x set of standards.
- Technical specification30 pagesEnglish languagesale 15% off
IEC Corrected Version
- Corrigendum4 pagesFrench languagesale 10% offe-Library read for1 day
IEC Corrected Version
- Corrigendum4 pagesFrench languagesale 10% offe-Library read for1 day
IEC Corrected Version
- Corrigendum4 pagesFrench languagesale 10% offe-Library read for1 day
IEC Corrected Version
- Corrigendum4 pagesFrench languagesale 10% offe-Library read for1 day
- Standard2 pagesEnglish and French languagesale 15% off
- Standard2 pagesEnglish and French languagesale 15% off
This part of IEC 61557 specifies the requirements applicable to equipment for measuring the
loop impedance between a line conductor and protective conductor; between a line conductor
and neutral; or between two line conductors by using the voltage drop when the circuit under
test is loaded.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft10 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61557 specifies the requirements applicable to measuring equipment for
testing the phase sequence in three-phase distribution systems. Indication of the phase
sequence can be mechanical, visual and/or audible.
This document does not apply to additional measurements for other quantities. It does not
apply to monitoring relays.
NOTE Common worldwide three-phase distribution systems are depicted in IEC 61010-1.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft9 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61557-11:2009 specifies the requirements for testing equipment applied to the testing of the effectiveness of residual current monitors (RCMs) of type A and type B, which are already installed in distribution systems. This test equipment can be used in any kind of network like a TN, TT or IT system. The test equipment may also be used for testing directionally discriminating RCMs in IT-Systems.This part is to be used in conjunction with IEC 61557-1:2007, Part 1: General requirements.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft20 pagesEnglish languagesale 10% offe-Library read for1 day
IEC Corrected version
- Corrigendum4 pagesEnglish and French languagesale 10% offe-Library read for1 day
This part of IEC 60050 gives the general terminology used for electrical installations such as
those of residential, industrial or commercial premises. It does not cover systems for distribution
of energy to the public or power generation and transmission for such systems. This new edition
reviews and complements the previous one. An important aim of the revision is to achieve
compliance with IEC 61140:2016. In addition, some new terms have been added from
IEC 60364-8-1:2014 and IEC 60364-8-2:2018. It has the status of a horizontal publication in
accordance with IEC Guide 108, Guidelines for ensuring the coherence of IEC publications –
Horizontal functions, horizontal publications and their application.
This terminology is consistent with the terminology developed in the other specialized parts of
the IEV.
This horizontal publication is primarily intended for use by technical committees in the
preparation of IEC publications in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
horizontal publications in the preparation of its publications
- Standard126 pagesEnglish and French languagesale 10% offe-Library read for1 day
IEC 60050-826:2022 gives the general terminology used for electrical installations such as those of residential, industrial or commercial premises. It does not cover systems for distribution of energy to the public or power generation and transmission for such systems. This new edition reviews and complements the previous one. An important aim of the revision is to achieve compliance with IEC 61140:2016. In addition, some new terms have been added from IEC 60364-8-1:2014 and IEC 60364-8-2:2018. It has the status of a horizontal publication in accordance with IEC Guide 108.
This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
This horizontal publication is primarily intended for use by technical committees in the preparation of IEC publications in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal publications in the preparation of its publications.
- Standard113 pagesEnglish and French languagesale 15% off
IEC Corrected version
- Corrigendum4 pagesEnglish and French languagesale 10% offe-Library read for1 day
- Amendment8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft7 pagesEnglish languagesale 10% offe-Library read for1 day
- Technical report5 pagesEnglish languagesale 15% off
- Standard2 pagesEnglish and French languagesale 15% off
IEC TR 63363-1:2022(E) is to present the "state of the art" with respect to general guidance on the steady-state performance demands of VSC HVDC transmission systems. It concerns the steady-state performance of two-terminal VSC HVDC transmission systems utilizing converters with power flow capability in both directions.
Different configurations of a VSC HVDC transmission system are covered in this document, including the symmetrical monopolar, asymmetrical monopolar, bipolar with earth return, bipolar with dedicated metallic return and rigid bipolar configurations.
There are many variations between different VSC HVDC transmission systems. This document does not consider these in detail; consequently, it cannot be used directly as a specification for a particular project, but rather to provide the general basis for the system steady-state performance demands.
Normally, the performance specifications are based on a complete system including two VSC HVDC converter stations. However, sometimes a VSC HVDC transmission system can also be separately specified and purchased from multiple vendors instead of single turnkey vendor. In such cases, due consideration can be given to the coordination of each part with the overall VSC HVDC system performance objectives and the interface of each with the system can be clearly defined. The major components of the VSC HVDC transmission system are presented in IEC 62747.
Referring to IEC 62747, an HVDC substation/converter station is defined as that part of the VSC HVDC transmission system which consists of one or more VSC converter units installed in a single location together with buildings, reactors, filters, reactive power supply, control, monitoring, protective, measuring and auxiliary equipment. The AC substations are not covered in this document.
This document provides guidance and supporting information on the procedure for system design and the technical issues involved in the system design of VSC HVDC transmission projects for both owners and contractors. This document can be used as the basis for drafting a procurement specification and as a guide during project implementation.
- Technical report61 pagesEnglish languagesale 15% off
IEC 61557-3:2019 is available as IEC 61557-3:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-3:2019 specifies the requirements applicable to equipment for measuring the loop impedance between a line conductor and protective conductor; between a line conductor and neutral; or between two line conductors by using the voltage drop when the circuit under test is loaded. IEC 61557-3:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of equirements as regards the measurement category; b) addition of new requirements for operating instructions; c) alignment of the structure with that of the whole IEC 61557 series.
- Standard14 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft10 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61557-7:2019 is available as IEC 61557-7:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-7:2019 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems. Indication of the phase sequence can be mechanical, visual and/or audible. This document does not apply to additional measurements for other quantities. It does not apply to monitoring relays. IEC 61557-7:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following changes with respect to the previous edition: a) alignment of the structure with that of the whole IEC 61557 series; b) updated requirements in 4.3 in accordance with new editions of IEC 61010-1 and IEC 61010-031; c) the information on markings was extended; d) the information on the operating instructions was extended; e) complement to the information on the testing of leads; f) test leads for insulated conductors were introduced; g) Annex B was added with information on phase sequence tests and indications.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft9 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 61557-11:2009 specifies the requirements for testing equipment applied to the testing of the effectiveness of residual current monitors (RCMs) of type A and type B, which are already installed in distribution systems. This test equipment can be used in any kind of network like a TN, TT or IT system. The test equipment may also be used for testing directionally discriminating RCMs in IT-Systems.This part is to be used in conjunction with IEC 61557-1:2007, Part 1: General requirements.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft20 pagesEnglish languagesale 10% offe-Library read for1 day
This document is applicable to specify the requirements for the design and erection of earthing systems of
electrical installations, in systems with nominal voltage above 1 kV AC and nominal frequency up to and
including 60 Hz, so as to provide safety and proper functioning for the use intended.
NOTE 1 The technical and procedural principles of this document can be applied when third parties’ installations and
facilities are planned and/or erected in the vicinity of HV electrical power installations.
For the purpose of interpreting this document, an electrical power installation is considered to be one of the
following:
a) substation, including substation for railway power supply;
b) electrical power installations on mast, pole and tower;
switchgear and/or transformers located outside a closed electrical operating area;
c) one (or more) power station(s) located on a single site;
the electrical power installation includes generators and transformers with all associated switchgear and all
electrical auxiliary systems. Connections between generating stations located on different sites are
excluded;
d) the electrical system of a factory, industrial plant or other industrial, agricultural, commercial or public
premises;
e) electrical power installations on offshore facilities for the purpose of generation, transmission, distribution
and/or storage of electricity;
f) transition towers/poles between overhead lines and underground lines.
The electrical power installation includes, among others, the following equipment:
— rotating electrical machines;
— switchgear;
— transformers and reactors;
— converters;
— cables;
— wiring systems;
— batteries;
— capacitors;
— earthing systems;
— buildings and fences which are part of a closed electrical operating area;
— associated protection, control and auxiliary systems;
— large air core reactor.
NOTE 2 In general, a standard for an item of equipment takes precedence over this document
This document does not apply to the design and erection of earthing systems of any of the following:
— overhead and underground lines between separate installations;
— electrified railway tracks and rolling stock;
— mining equipment and installations;
— fluorescent lamp installations;
— installations on ships according to IEC 60092 (all parts) and offshore units according to
IEC 61892 (all parts), which are used in the offshore petroleum industry for drilling, processing and storage
purposes;
— electrostatic equipment (e.g. electrostatic precipitators, spray-painting units);
— test sites;
— medical equipment, e.g. medical X-ray equipment.
NOTE 3 The standard EN 50341 series, Overhead lines exceeding AC 1 kV, specifies requirements for the design and
erection of earthing systems in overhead lines.
NOTE 4 The scope of this document does not include the requirements for carrying out live working on electrical power
installations.
NOTE 5 The scope of this document considers safety requirements for HV installations and its influences on LV
installations. For electrical installation up to 1 kV, the standard HD 60364 series applies.
- Standard77 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft72 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61557 specifies the requirements applicable to measuring equipment for
testing the effectiveness of protective measures of residual current devices (RCD) installed in
TT, TN and IT systems.
It is not the purpose of this document to verify the RCD according to their product standards.
NOTE Applicable tripping tests for time and current of RCD are listed in Annex A, Table A.1
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- Draft13 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61557 specifies requirements for power metering and monitoring devices
(PMD) that measure and monitor the electrical quantities within electrical distribution systems,
and optionally other external signals. These requirements also define the performance in
single- and three-phase AC or DC systems having rated voltages up to 1 000 V AC or up to
1 500 V DC.
These devices are fixed or portable. They are intended to be used indoors and/or outdoors.
Power metering and monitoring devices (PMD), as defined in this document, give additional
safety information, which aids the verification of the installation and enhances the
performance of the distribution systems.
The power metering and monitoring devices (PMD) for electrical parameters described in this
document are used for general industrial and commercial applications.
This document does not address functional safety and cyber security aspects.
This document is not applicable for:
– electricity metering equipment that complies with IEC 62053-21, IEC 62053-22,
IEC 62053-23 and IEC 62053-24. Nevertheless, uncertainties defined in this document for
active and reactive energy measurement are derived from those defined in IEC 62053 (all
parts);
– the measurement and monitoring of electrical parameters defined in IEC 61557-2 to
IEC 61557-9 and IEC 61557-13 or in IEC 62020;
– power quality instrument (PQI) according IEC 62586 (all parts);
– devices covered by IEC 60051 (all parts) (direct acting analogue electrical measuring
instrument).
NOTE 1 Generally such types of devices are used in the following applications or for the following general needs:
– energy management inside the installation, such as facilitating the implementation of documents such as
ISO 50001 and IEC 60364-8-1;
– monitoring and/or measurement of electrical parameters;
– measurement and/or monitoring of the quality of energy inside commercial/industrial installations.
NOTE 2 A measuring and monitoring device of electrical parameters usually consists of several functional
modules. All or some of the functional modules are combined in one device. Examples of functional modules are:
– measurement and monitoring of several electrical parameters simultaneously;
– energy measurement and/or monitoring, as well as sometimes compliance with aspects of building regulations;
– alarms functions;
– demand side quality (current and voltage harmonics, over/under voltages, voltage dips and swells, etc.).
NOTE 3 PMD are historically called power meter, power monitor, power monitor device, power energy monitoring
device, power analyser, multifunction meter, measuring multifunction equipment, energy meters.
NOTE 4 Metering, measuring and monitoring applications are explained in Annex A.
- Standard106 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61557 specifies requirements for power metering and monitoring devices (PMD) that measure and monitor the electrical quantities within electrical distribution systems, and optionally other external signals. These requirements also defin the performance of PMD in single- and three-phace AC or DC systems having rated voltages up to 1000 V AC or up to 1500 V DC.
These devices are fixed or portable. They are intended to be used indoors and/or outdoors.
Power metering and monitoring devices (PMD), as defined in this document, give additional safety information, which aids the verification of the installation and enhances the performance of the distribution systems.
Additionally, this document specifies requirements for measurement functions dedicated to metering and monitoring of electrical parameters called power metering and monitoring function (PMF) which can be embedded in equipment (EMPF) that is not classified as PMD and for which the main function is not power metering and monitoring.
Requirements for power metering and monitoring function (PMF) and additional requirements for equipments embedding power metering and monitoring function (EPMF) are described in Annex H.
The power metering and monitoring devices (PMD) for electrical parameters described in this document are used for general industrial and commercial applications.
This document does not address functional safety and cyber security aspects.
This document is not applicable to:
- electricity metering equipment that complies with IEC 62053-21, IEC 62053-22, IEC 62053-23 and IEC 62053-24. Nevertheless, uncertainties defined in this document for active and reactive energy measurement are derived from those defined in IEC 62053 (all parts);
- the measurement and monitoring of electrical parameters defined in IEC 61557-2 to IEC 61557-9 and IEC 61557-13 or in IEC 62020;
- power quality instrument (PQI) according IEC 62586 (all parts);
- devices covered by IEC 60051 (all parts) (direct acting analogue electrical measuring instrument).
Note 1 Generally such types of devices are used in the following applications or for the following general needs:
- energy management inside the installation, such as facilitating the implementation of documents such as ISO 50001 and IEC 60364-8-1;
- monitoring and/or measurement of electrical parameters;
- measurement and/or monitoring of the quality of energy inside commercial/industrial installations.
Note 2 A measuring and monitoring device of electrical parameters usually consists of several functional modules. All or some of the functional modules are combined in one device. Examples of fuctnional modules are:
- measurement and monitoring of several electrical parameters simultaneously;
- energy measurement and/or monitoring, as well as sometimes compliance with aspects of building regulations;
- alarms functions;
- demand side quality (current and voltage harmonics, over/under voltages, voltage dips and swells, etc.).
Note 3 PMD are historically called power meter, power monitor, power monitor device, power energy monitoring device, power analyser, multifunction meter, measuring multifunction equipment, energe meters.
Note 4 Metering, measuring and monitoring applications are explained in Annex A.
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This part of IEC 61557 specifies the requirements applicable to equipment for measuring the
resistance of earth conductors, protective earth conductors and conductors for equipotential
bonding, including their connections and terminals, with an indication of the measured value
or an indication of the limits.
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- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61557 specifies the requirements applicable to equipment for measuring the
insulation resistance of equipment and installations in the de-energized state.
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- Draft9 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61557 specifies the requirements applicable to measuring equipment for measuring the resistance to earth using an AC voltage.
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- Draft10 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61557 specifies the general requirements applicable to measuring and
monitoring equipment for testing the electrical safety in low-voltage distribution systems with
nominal voltages up to 1 000 V AC and 1 500 V DC.
When measuring equipment or measuring installations involve measurement tasks of various
measuring equipment covered by this series of standards, then the part of this series relevant
to each of the measurement tasks is applicable.
NOTE The term "measuring equipment" will hereafter be used to designate "testing, measuring and monitoring
equipment".
Other parts of IEC 61557 can specify additional requirements or deviations.
This document does not cover functional safety or cybersecurity
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- Draft22 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61557 defines minimum performance requirements for non-contact AC voltage
indicators to reduce the risk of electric shock for the testing person and bystanders caused by
the wrong interpretation of the indication.
Products designed and manufactured in accordance with this document are for use by
(electrically) skilled persons only. Non-contact AC voltage indicators are not designed for
testing the absence of the operating voltage.
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- Draft13 pagesEnglish languagesale 10% offe-Library read for1 day