Hitachi Relion 670 Series Applications Manual page 341

1MRK506375-UEN Rev. N
15.10 Fault locator RWRFLO
15.10.1 Function revision history
Document
revision
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15.10.2 Identification
Function description
Fault locator
15.10.3 Application
The main purpose of line protection and monitoring IEDs is to provide fast, selective and reliable
operation regarding faults on a protected line section.
Information on distance-to-fault is more important for those involved in operation and maintenance.
Reliable information on fault location greatly decreases the downtime of protected lines, and
increases the total availability of the power system.
15.10.3.1 Two-phase multi section supply system for railway
Transmission lines are typically made of single type of conductor. If a transmission line is made of
more than one section, the line parameters are different for each section, and the set-up cannot be
considered as one single line. Fault location algorithms for a single line will thus not meet accuracy
requirements in railway supply system. This can be explained by considering an example of
transmission line with 3 sections as shown in the Figure 163:
Railway application RER670
Application manual
Product History
revision
2.2.1 -
2.2.1 -
2.2.2 Included fault locator for traction supply system.
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 -
2.2.4 -
2.2.4 -
2.2.5 BCD outputs are provided and BTCatenary SystemType included. This update is valid for
2.2.5 release only.
2.2.6 -
2.2.6 -
IEC 61850
identification
RWRFLO
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GUID-1F14BF5D-8159-47F8-8060-0C517C7BB7EA v1
IEC 60617 ANSI/IEEE C37.2
identification device number
-
GUID-D51EE866-71B6-4D14-B4E2-241128DE4A97 v3
GUID-45E16C13-76E4-4A26-B824-C3DE5A6E1FB8 v1
Section 15
Monitoring
335