39
34ZBTS_30-1200A rev.A / 1SCC303043M0201
1
NOTE! In Test location all electrical opera-
tions are allowed. The switch can be oper-
ated I-O-II.
6 When rack out the ATS to Isolated
location, the switch must be in OFF-
position. Now follow the steps 3 to 5.
When button returns, it is a sign that
next locations has been reached and
the location now is “Isolated”.
NOTE! In Isolated location there is no
power available.
"Bypass System Overview" -page in HMI
of Bypass switch: When ATS is drawn in/
out the list "Connected - Test - Isolated"
(all in grey) indicates a Location error be-
cause the IO-connection is disconnected
from the contacts at different times while
the switch is racked in/out. When the lo-
cations are reached the colours in the list
will change; when reached the Test loca-
tion, Test will be in yellow (Test), all the
other in grey and when the Isolation loca-
tion is reached, Isolation will be in orange
(Isolated) and all the other in grey, see Fig.
3.29.
While the ATS is racked out to the Test lo-
cation, "Switch Overview " -page in HMI
of ATS do not display the location status.
When the Test location is reached and the
"Racking in/out mechanism" button re-
turns to the normal position, the HMI dis-
play updates the latest location.
When the ATS is racked out to the Isolated
location, the plug-in connections are dis-
connected from the busbar and the
switch loses the power. In this case, all
connections (including I/O signals) are
disconnected, which also interrupts the
power supply to the HMI. In this case, the
HMI of the Bypass switch shows the sta-
tus of both switches on the “Bypass Sys-
tem Overviw” -page.
See the next two pages the Fig. 3.28 for
the use of the draw-out mechanism to
rack out the switch and Fig. 3.29 for sta-
tus of the switches on the HMIs of both
switches while racking out the ATS.
—
Fig. 3.27 Transferring to Isolation location, numbers refer
to the steps
3 5
6
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