Table of Contents
Advertisement
ABOUT YOUR NEW DDFR UNIT
1.2
About Your New DDFR Unit
1.2.1
Cautions and Warnings
1.2.2
About the DDFR in General
1.2.2.1 Background
2
Before attempting to install or use the DDFR unit, it is important that all DANGER and
CAUTION indicators in this manual are reviewed in order to prevent personal injury,
equipment damage and/or downtime. The above icons are used to indicate dangers,
cautions and notes.
The standard note icon emphasizes a specific point or indicates minor problems that may
occur if instructions are not properly followed.
The caution icon indicates that possible damage to equipment or data may occur if
instructions are not properly followed.
The danger icon provides users with a warning about the possibility of serious or fatal
injury to themselves or others.
The Distributed Digital Fault Recorder (DDFR) you are about to set up, has been designed to
provide you with a convenient and economical way to keep track of electrical system
situations and problems using the latest in digital technology, by transferring readily
available data from the GE relays currently operating in your facility, so that it can be used
conveniently and effectively.
The DDFR is, in fact, a highly effective data management device.
Enhancements to the fault and disturbance recording abilities of modern microprocessor
based protection relays has eliminated the need to install costly equipment whose sole
purpose is to record information about power system events. The DDFR is a substation-
hardened device built to protection relay standards that uses communications to retrieve
Fault, Disturbance and Sequence of Event records recorded in existing protection relays
and archive this critical data both locally and in a permanent enterprise network location.
Fault and disturbance information is retrieved and stored from the protection relays within
seconds of the file initially being recorded. Having this information quickly archived into a
permanent location eliminates the risk of the files being overwritten in the finite storage
space within the relay before users have had a chance to manually retrieve these files.
International Standards Compliant
When used with advanced protection relays such as the GE Multilin Universal Relay family,
the DDFR complies with most international standards requirements for fault recording
including:
CHAPTER 1: GETTING STARTED
DISTRIBUTED DIGITAL FAULT RECORDER – INSTRUCTION MANUAL
Advertisement
Table of Contents
