Siemens SIMEAS R-PMU Manual page 14

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Nowadays, most of the substations feature protection devices of different suppliers that even
belong to different generations. If a system malfunction has occurred, the user often has to
restart the corresponding PC software for each device, manually build up a connection,
download the fault record and then perform the analyses. A fault recorder system with
automatic communication and self-starting application programs offers an attractive
alternative.
All substations that are mainly equipped with electromagnetic protection devices should be
provided with a modern recording system.
Please note that false trippings of protection devices may occur frequently, especially in
regions with a strong input to the system. In the majority of cases, the reason is a wrong
parameterization. However, the settings of protection devices can be optimized by
monitoring the TRIP commands of all protection devices and by recording the faults with
modern recording devices.
The following chapter describes the most important applications of modern recording systems.
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Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012