Technical Brochures

Technical Brochures issued by SC 34 and SC B5 can be purchased by members of CIGRE and non members.

The catalogue of Publications lists all these elements, with a short abstract and the price (see link at the end of this page).

See also E-cigre, the on-line library and bookstore of CIGRE at E-cigre



Téléprotection
Teleprotection
CE/SC 34/35 , 1969, 317 pp.
bilingue/bilingual
Protective gear in modern power systems often uses information from various distant points on the power system and the transmission of such information involves the use of telecommunication techniques. The document is aimed at reviewing the principal methods of teleprotection having regard to the properties of the various telecommunication systems.

Non-conventional current and voltage transformers
Transformateurs de courant et de tension non classiques
CE/SC 34 , 1980, 173 pp.
bilingue/bilingual
For some years new concepts of current and voltage transformers for HV and EHV transmission systems have been investigated and developed to the stages of laboratory models or prototype units installed for trials on transmission systems. One of the aims of this development was to design measuring devices of improved transient performance, as compared with the conventional CT's, CVT's and VT's in order to reliable and faster fault clearance times.

Harmonisation of protection policies for power stations and generators and of protection policies for HV networks
CE/SC 34 GT/WG 01, 1983, 44 pp.
The power generating units and the transmission network operate as an interactive system. Faults and switching actions in the network cause electrical system transients which stimulate torsional oscillations along the turbine generator shaft. In the past, the generator three-phase terminal short-circuit was considered as the most critical mechanical stress condition for the turbine generator unit.

Final report on computer based protection and digital techniques in substations.
CE/SC 34 GT/WG 02, 1985, 54 pp.
Digital computer technology has been applied in electric power substations for many years. Data acquisition, alarms, status monitoring and supervisory control systems have all been converted to digital computer systems to some extent, and in many cases these systems are entirely digital in nature. Protection of power apparatus and systems is a function that has been considered for conversion to digital computer technology during recent years.

Use of equipment built-in automatic testing - self-checking and monitoring with a view to improving reliability
CE/SC 34 GT/WG 03, 1986, 45 pp.
The increasing sizes of power networks with increasing transfer of energy and fault current levels have stressed the importance of reliable fault clearing. Great care is taken in circuit design, selection of components, careful production and quality control to assure reliable fault clearing. Nevertheless components in the fault clearing chain will degrade by time or fail suddenly and cause either failure to operate or incorrect operation.

Evaluation of characteristics and performance of power system protection relays and protective systems
CE/SC 34 GT/WG 04, 1986, 101 pp.
This report is intended to provide guidance on the tests required to establish the characteristics and performance of power system protection relays and protective systems, leaving the issuing of a standard to IEC. These functional tests are performed as a part of a type test program. The diversity of types of protection relays and protective systems prevents the definition of a universal type test programme.

Protection systems using telecommunication
CE/SC 34/35 GT/WG 05, 1987, 132 pp.
Telecommunication connected to or included in protection systems seems to be more common when transmission power systems are extended and developed. The increasing integration of telecommunication in the protections systems necessitates a good overall view of protection and telecommunication problems and of course power system problems as well. This report promotes mutual appreciation of the problems experienced by engineers.

Digital protection techniques and substation functions.
CE/SC 34 GT/WG 09, 1989, 176 pp.
The report summarises the findings and recommendations of WG34.01, dealing with various aspects of digital computer techniques for protection of electric power systems and the impact of an integrated hierarchical structure on all protection and control tasks. An important part of the report is defining the structure for collection and description of significant test cases for protection and control.

Application guide on protection of complex transmission network configurations.
CE/SC 34 GT/WG 04, 1992, 153 pp.
This guide is primarily aimed at the application engineer who has a basic protection knowledge but needs expert assistance to plan and operate the protection of more complex transmission systems. This publication may however, also be of interest to experienced engineers as it contains recent information collected through analysis of the responses to a world-wide survey questionnaire issued in 1989.

Application of wideband communication circuits to protection. Prospects and benefits.
CE/SC 34 GT/WG 05, 1994, 92 pp.
The document starts with a general introduction dealing with the trend towards digital communication and the need for wideband communication, giving a brief comparison of the different transmission media and an overview of the different types of protection systems. It also gives a short survey of the present practices and future trends and presents some opportunities for new applications.

Maintenance and management of protection systems.
CE/SC 34 GT/WG 06, 1994, 61 pp.
The growing size and complexity of power systems generate increasing needs for maintenance and management efforts to optimise investment and renewal costs. On the other hand the rapid development of information technology can provide a new approach to reduce life cycle costs. SC34 has considered these aspects from the point of view of protection and control systems.

Adaptive protections and control
CE/SC 34 GT/WG 02, 1995, 124 pp.
The concept of adaptive protection evolved during the 1980's. By then, digital computer based relaying was well accepted. Most relaying functions have been shown to be amenable to digital computer implementation and the satisfactory field experience with these devices has allayed the fears of protection engineers about the survivability of computer relays in the harsh environment of electric utility substations.

Reliable fault clearence and back-up protection
CE/SC 34 GT/WG 01, 1998, 402 pp.
This report is a guide for the design of a transmission network back-up protection. The scope of work covers back-up protection policies, including breaker failure protection, for lines, transformers and busbars of a primary transmission network.

Protection against voltage collapse.
CE/SC 34 GT/WG 08, 1998, 80 pp.
This report focus on system protection and emergency control to counteract voltage collapse. The aim is to provide guidance concerning methods of avoiding voltage collapse after unforeseen events, such as very rapid load increace and severe faults during stressed operational conditions, by protective measures.

Use of intelligent systems within substations.
CE/SC 34 GT/WG 07, Final Draft, 1998.
This report focuses on intelligent system applications to protection and local control within transmission substations. It considers the application of several new techniques including expert systems, knowledge based systems, artificial neural networks and fuzzy logic systems.

Reliable fault clearance and back-up protection
CE/SC 34 GT/WG 01, Final Draft, 1998.
This is a guide for back-up protection for transmission networks. The report addresses the fundmental issues, protection requirements and protection-system performance indices. The back-up protection of lines, series capacitors, transformers, shunt reactors, shunt capacitors, and busbars is discussed. Fault statistics and failure statistics of protection systems are also reviewed. Communication systems used for power-system protection and dc auxiliary supply systems have also been considered.

Analysis and guidelines for testing numerical protection schemes
CE/SC 34, GT/WG 10 2000, 120 pp.
The question of how to test numerical relays has become an important topic over the last few years. The protection functions of the relay and the transient currents and voltages are still the same, but it is the present state of technology that offers new possibilities and makes the number of functions in the relay more complex. It is generally agreed that testing numerical protection should be different from older techniques.

Communication requirements in terms of data flow within substations
CE/SC 34, GT/WG 03, 2001, 112 pp.
A study of communication requirements in terms of data flow within substations covering communication of all functions usually performed i.e. all tasks of protection, control, monitoring, measuring, disturbance recording etc. The complete definition of all communication requirements has to provide the rating guide for existing/coming communication networks/busses and the basis for the definition of standards.

Protection using telecommunications
CE/SC 34/35, GT/WG 11, 2001, 175 pp.
Deregulation in both the telecommunication and electric power industry, together with new telecommunication network technologies and advances in numerical protection, has resulted in the need to reconsider traditional methods of delivering teleprotection schemes and their associated bearer services. Fibre-optic technology is commonly deployed in new telecommunication networks for inter-station communication and utility-owned and public telecommunication networks from third parties are available for protection purposes.

Isolation and restoration policies against system collapse
CE/SC 34, GT/WG 08, 2002, 80 pp.
This report discusses characteristics of severe system disturbances and describes measures applied by utilities against wide-spread blackouts, including currently applied special protection schemes against power system collapse. Normal protective relays used for fault clearance are not considered. Emphasis is placed on: circumstances which could lead to severe disturbances; utilities policies for preventing system collapse; SPS in operation; performance of SPS against disturbances; interaction of SPS and the power system.

Report on survey to establish protection performance during major disturbances
CE/SC 34, GT/WG 09, 2002, 60 pp.
The objectives of the questionnaire were to review significant disturbances since 1986 (i.e. where load loss exceeded 1 system minute or generation loss exceeded 10% peak demand); identify and catagorise the cause and nature of the disturbances; to collect user experience relating to behaviour of protection and control systems during such disturbances.

Optamization of protection performance during system disturbances
CE/SC 34, GT/WG 09, 2003, 180 pp.
Attempts to identify the potential vulnerabilities of protection schemes in the event of major disturbances and recommend strategies to optimise protection performance. Given the rapid pace of technology development reference is also made to possible future improvements in such defence schemes.

Conformance testing guidelines for communication in substations
CE/SC 34 GT/WG 01, 2003, 30 PP.

The automation of new and existing substations; why and how
CE/SC B5, GT/WG 07, 2004, 120 PP.
Discusses the impact of modern secondary equipment in substations to utilities. Overall and not individual functions are discussed. It applies to new substations as well as for refurbishment of secondary equipment in existing substations. The purpose is to assist engineers who have not yet ahd experience with modern secondary equipment. It provides useful information gained by utilities, manufacturers and system integrators.












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