2 FOREWORD
This technical manual provides a functional and technical description of Alstom Grid's Reason RPV311, as
well as a comprehensive set of instructions for using the device. The level at which this manual is written
assumes that you are already familiar with protection engineering and have experience in this discipline. The
description of principles and theory is limited to that which is necessary to understand the product..
We have attempted to make this manual as accurate, comprehensive and user-friendly as possible. However
we cannot guarantee that it is free from errors. Nor can we state that it cannot be improved. We would
therefore be very pleased to hear from you if you discover any errors, or have any suggestions for
improvement. Our policy is to provide the information necessary to help you safely specify, engineer, install,
commission, maintain, and eventually dispose of this product. We consider that this manual provides the
necessary information, but if you consider that more details are needed, please contact us.
All feedback should be sent to our contact centre via the following URL:
http://www.alstom.com/grid/contactcentre/
2.1 TARGET AUDIENCE
This manual is aimed towards all professionals charged with installing, commissioning, maintaining,
troubleshooting, or operating any of the products within the specified product range. This includes installation
and commissioning personnel as well as engineers who will be responsible for operating the product.
The level at which this manual is written assumes that installation and commissioning engineers have
knowledge of handling electronic equipment. Also, system and protection engineers have a thorough
knowledge of protection systems and associated equipment.
2.2 NOMENCLATURE
Due to the technical nature of this manual, many special terms, abbreviations and acronyms are used
throughout the manual. Some of these terms are well-known industry-specific terms while others may be
special product-specific terms used by Alstom Grid. The first instance of any acronym or term used in a
particular chapter is explained. In addition, a separate glossary is available on the Alstom website, or from
the Alstom contact centre.
We would like to highlight the following changes of nomenclature however:
British English is used throughout this manual.
The British term 'Earth' is used in favour of the American term 'Ground'.
2.3 ACRONYMS AND ABBREVIATIONS
AC - Alternating Current;
CF - Constituição Federal (Federal Constitution);
COMNAME - IEEE C37.232 Recommended Practice for Naming Time Sequence Data Files;
COMTRADE - IEEE C37.111 Common Format for Transient Data Exchange;
DC - Direct Current;
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