2.2 Local panel operations
2 Local panel user interface
Operation and configuration
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2.2.2.
Menu structure of protection functions
The general structure of all protection function menus is
similar although the details do differ from stage to stage. As an
example the details of the second overcurrent stage I>> menus
are shown below.
First menu of I>> 50/51 stage
Figure 2.2.2-1 First menu of I>> 50/51 stage
This is the status, start and trip counter and setting group
menu. The content is:
Status –
The stage is not detecting any fault at the moment. The stage can also
be forced to pick-up or trip if the operating level is "Configurator" and
the force flag below is on. Operating levels are explained in chapter
2.2.5.
SCntr 5
The stage has picked-up a fault five times since the last reset of restart.
This value can be cleared if the operating level is at least "Operator".
TCntr 1
The stage has tripped two times since the last reset of restart. This
value can be cleared if the operating level is at least "Operator".
SetGrp 1
The active setting group is one. This value can be edited if the
operating level is at least "Operator". Setting groups are explained in
chapter 2.2.3.
SGrpDI -
The setting group is not controlled by any digital input. This value can
be edited if the operating level is at least "Configurator".
Force Off
The status forcing and output relay forcing is disabled. This force flag
status can be set to "On" or back to "Off" if the operating level is at least
"Configurator". If no front panel button is pressed within five minutes
and there is no VAMPSET communication, the force flag will be set to
"Off" position. The forcing is explained in chapter 2.3.4.