2.22 Additional Functions
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7UT613/63x Manual
C53000-G1176-C160-2
update or initiate one. This can be useful help during operation, testing and commis-
sioning.
Spontaneous indications can be read out via DIGSI. For more information see the
SIPROTEC 4 System Description.
2.22.1.5 General Interrogation
The present condition of a SIPROTEC 4 device can be examined with DIGSI by
viewing the contents of the General Interrogation. All of the annunciations that are
needed for a general interrogation are shown along with the actual values or states.
2.22.1.6 Switching Statistics
The function counts the number of trips initiated by the device, determines and signals
the interrupted current for each trip command, and stores a summated value of the
current.
The messages in switching statistics are counters for the accumulation of interrupted
currents by each of the breaker poles, the number of control commands issued by the
device to the breakers. The interrupted currents are in primary terms.
The counters and memories of the statistics are saved by the device. Therefore the
information will not get lost in case the auxiliary voltage supply fails. The counters,
however, can be reset back to zero or to any value within the setting range.
They can be called up at the front of the device, read out via the operating interface
using a PC with DIGSI, or transferred to a central master station via the system inter-
face.
A password is not required to read switching statistics; however, a password is re-
quired to change or delete the statistics.
2.22.2 Measurement
2.22.2.1 Display and Transmission of Measured Valuables
Operational measured and metered values are determined in the background by the
processor system. They can be called up at the front of the device, read out via the
operating interface using a PC with DIGSI, or transferred to a central master station
via the system interface.
The computation of the operational measured values is also executed during an exis-
tent system fault in intervals of approx. 0.6 s.
Next to the measured values that can be acquired directly at the device's measuring
inputs, the device calculates a wide range of other values. Many measured values are
calculated from the measured quantities and referenced to the application. The device
can flexibly adapt to various protective objects with varying topologies; this picks up a
flexible adaptation of an operational measured values output. Only operational values
appear that result from the connected measured quantities and that make sense of the
configured cases.
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