Chapter 7: Tw Fault Locator; Twfl Overview; Figure 72 - Tw Fault Locator Architecture Overview - GE RPV311 Technical Manual

RPV311
Distributed Multifunction Fault Recorder

Chapter 7: TW Fault Locator

1

TWFL Overview

This chapter provides information regarding the architecture and the proper use of
the Reason Traveling Wave Fault Location.
The figure below shows an overview of the Traveling Wave Fault Location
architecture.
Figure 72 – TW Fault Locator architecture overview
Each terminal of the line has to have a set of RPV311 processing unit+RA333
acquisition unit ; and each RPV311 has to be synchronized with a GPS Clock as
accurate as possible. The signal used to extract the traveling waves if the voltage
signal from the secondary circuitry of the VT.
During a fault the RPV311 in each terminal will register the waveform of the traveling
wave in a COMTRADE file, after being triggered by any of the thresholds described in
Chapter 4 - Thresholds.
The COMTRADE files of both ends of the line have to be downloaded to a computer
,where the software TW Fault Locator (present in RPVTools) will run the files and
calculate the distance of the fault. The Chapter Chapter 12: Software – RPV Tools -
TW Fault Locator described the procedure to utilize the software.