Functions
2.17 Auxiliary Functions
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
215
Spontaneous Messages From the Device Front
After occurrence of a fault, the most important fault data appear in the display automatically after a general
pickup of the device, without further operating actions. They are displayed in the sequence shown in
Figure 2-71.
Figure 2-71 Display of spontaneous annunciations in the 4–line display of the device
Retrievable Messages
The messages for the last eight network faults can be retrieved and read out. The definition of a network fault
is such that the time period from fault detection up to final clearing of the disturbance is considered to be one
network fault. If auto-reclosing occurs, then the network fault ends after the last reclosing shot, which means
after a successful reclosing or lockout. Therefore the entire clearing process, including all reclosing shots, oc-
cupies only one trip log buffer. Within a network fault, several fault messages can occur (from the first pickup
of a protective function to the last dropout of a protective function). Without auto-reclosing each fault event rep-
resents a network fault.
In total 600 indications can be recorded. Oldest data are erased for newest data when the buffer is full.
General Interrogation
The general interrogation which can be retrieved via DIGSI enables the current status of the SIPROTEC 4
device to be read out. All messages requiring general interrogation are displayed with their present value.
Spontaneous Messages
The spontaneous messages displayed using DIGSI reflect the present status of incoming information. Each
new incoming message appears immediately, i.e. the user does not have to wait for an update or initiate one.
2.17.1.3 Information to a Substation Control Center
If the device has a serial system interface, stored information may additionally be transferred via this interface
to a centralized control and storage device. Transmission is possible via different transmission protocols.
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