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Measured data
Switchgroup SG3 is a so called software switch-
group, which is located in the fourth submenu
of switchgroup SG1. The front panel push-
SG3/1 SG3/2 SG3/3
0
0
0
1
0
0
0
1
0
0
0
1
1
0
1
The PC board of the relay module contains a
switchgroup named SGB with eight switches
numbered 1...8. Switches 1...3 are used for
configuring the start initiation signals to the
auto-reclose module, whereas switches 4...8 are
The measured values are presented with the
rightmost three green digits on the display. The
Indicator
Measured data
U
Residual voltage measured by the module, expressed as a percentage of the rated
0
voltage U
n
rated voltage of the energized relay input the display shows - - -.
I
Neutral current measured by the module, expressed as a percentage of the rated
0
current I
of the energized relay input.
n
Iϕ
I
sinϕ value or I
0
the rated current of the relay assembly. If Iϕ is negative, the digit at the extreme left
on the display shows a red minus sign. If the measured value exceeds 100% of the
rated current of the relay assembly, the display shows either - - - or - - - - depending
on the sign of the Iϕ value.
NOTE!
The rated current I
of the protection relay unit
n
is the rated current of the energizing inputs of
Push-button
STEP
RESET
STEP & RESET
STEP
RESET
STEP & RESET
STEP
RESET
STEP & RESET
STEP
RESET
STEP & RESET
STEP
RESET
STEP & RESET
of the energized relay input. If the measured value exceeds 25% of the
cosϕ value measured by the module, expressed as a percentage of
0
buttons STEP and RESET can be programmed
with switches SG3/1...3. Switches SG3/4...8
are not in use. The default value for SG3 is 0.
Clear
Reset
start/trip
latched
LED's
relays
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
used for configuring blocking signals to the
overcurrent stages of the module. For more
detailed information, see the general descrip-
tions of the different protection relay units.
data being presented are indicated by LED
indicators on the front panel.
the relay currently being energized in a particu-
lar application.
Erase
memorized
values
x
x
x
x
x
9
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