Siemens Argus 7SR21 - Page 191

7SR220 Instrumentation Guide
Page 6 of 20 © 2017 Siemens Protection Devices Limited
1. Relay Instrumentation
1.1. Favourite Meters
Instrument Description
--------------------
FAVOURITE METERS
> to view
This allows the user to view his previously constructed list of ‘favourite meters’
by pressing TEST/RESET ► button and the READ DOWN button to scroll
though the meters added to this sub-group
To construct a sub-group of favourite meters, first go to the desired meter then
press ENTER this will cause a message to appear on the LCD ‘Add To
Favourites YES pressing ENTER again will add this to the FAVOURITE
METERS Sub-menu. To remove a meter from the FAVOURITE METERS sub-
menu go to that meter each in the FAVOURITE METERS sub-menu or at its
Primary location press ENTER and the message ‘Remove From Favourites’ will
appear press ENTER again and this meter will be removed from the
FAVOURITE METERS sub-group
1.2. Current Meters
Instrument Description
--------------------
CURRENT METERS
> to view
--------------------
This is the sub-group that includes all the meters that are associated with
Current TEST/RESET ► allows access to this sub-group
Primary Current
Ia 0.00A
Ib 0.00A
Ic 0.00A
Displays the 3 phase currents Primary RMS values
Secondary Current
Ia 0.00A
Ib 0.00A
Ic 0.00A
Displays the 3 phase currents Secondary RMS values
Nom Current
Ia 0.00xIn ----
o
Ib 0.00xIn ----
o
Ic 0.00xIn ----
o
Displays the 3 phase currents Nominal RMS values & phase angles with
respect to PPS current.
Pri Earth Current
In 0.000A
Ig 0.000A
Displays the 3 Earth currents Primary RMS values
Sec Earth Current
In 0.000A
Ig 0.000A
Displays the 3 Earth currents Secondary RMS values
Nom Earth Current
In 0.000xIn ----
o
Ig 0.000xIn ----
o
Displays the 3 Earth currents Nominal RMS values & phase angles with respect
to PPS current.
I Seq Components
Izps 0.00xIn ----
o
Ipps 0.00xIn ----
o
Inps 0.00xIn ----
o
Displays the Current Sequence components Nominal RMS values & phase
angles with respect to PPS current.
2
nd
Harmonic Current
Ia 0.00xIn
Ib 0.00xIn
Ic 0.00xIn
Displays the 3 phase currents 2
nd
Harmonic components Nominal RMS values.