Control During Operation
7-137SA6 Manual
C53000-G1176-C133-1
7.1.2 Switching Statistics
The messages in switching statistics are counters for the accumulation of interrupted
currents by each of the breaker poles, the number of trips issued by the device to the
breaker. The interrupted currents are in primary terms.
Switching statistics can be viewed on the LCD of the device, or on a PC running
DIGSI
®
4 and connected to the operating or service interface.
A password is not required to read switching statistics; however, a password is
required to change or delete the statistics.
7.1.2.1 Viewing the Switching Statistics
For each trip command initiated by a protective element of the device, the magnitude
of interrupted current for each circuit breaker pole is determined and stored. The
current magnitudes are added to previously interrupted currents, and the accumulated
values are stored.
In devices with automatic reclosure the number of reclosure commands is counted,
i. e. separately according to single-pole (if available) and three-pole automatic
reclosure cycles as well as separately according to the first and all further automatic
reclosures.
The memories are protected against auxiliary voltage failure.
From the
Device Front
With a device ready for operation, first press the key. The 0$,10(18 appears.
The first menu item$QQXQFLDWLRQ is marked.
Press the key to enter the $1181&,$7,21 sub-menu (see Figure 7-2).
Use the key to select the item 6WDWLVWLF, and switch to the list of statistics values
using the key. The 67$7,67,& list appears. See Figure 7-15.
Figure 7-15 Switching statistics viewed from the front display
From PC with
DIGSI
®
4
Under $QQXQFLDWLRQ (Figure 7-2), the switching statistics can be found by double
clicking. Double click on 6WDWLVWLF. In the right part of the window the submenu
6WDWLVWLF appears. When double-clicking on it the content is displayed in another
window. See Figure 7-16.
MENU
67$7,67,&6
Σ ,/ N$
Σ ,/ N$
Etc.
:
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