TB MRI(K)3-C 03.02 E
47
5.12.2
Units of the measuring values
displayed
The measuring values can optionally be shown in the
display as a multiple of the "sec" rated value (x ln) or as
primary current (A). According to this the units of the
display change as follows:
Phase current:
Indication as
Range
Unit
Secondary current
Active portion I
P
Reactive portion I
Q
0.00 – 40.0
±.
00 – 40
±.
00 – 40.
x In
x In
x In
Primary current
.000 – 999.
k000 – k999
1k00 – 9k99
10k0 – 99k0
100k – 999k
1M00 – 2M00
A
kA*
kA
kA
kA
MA
active portion I
P
±.00 – ±999
±k00 – ±k99
±1k0 – ±9k9
±10k – ±99k
±M10 – ±M99
±1M0 – ±2M0
A
kA*
kA
kA
MA
MA
Reactive portion I
Q
±.00 – ±999
±k00 – ±k99
±1k0 – ±9k9
±10k – ±99k
±M10 – ±M99
±1M0 – ±2M0
A
kA*
kA
kA
MA
MA
*rated current transformer >2kA
Earth current (sensitive):
Indication as
Range
Unit
Secondary current
Active portion I
P
Reactive portion I
Q
(X/XR types)
.000 – 4.5
±.00 – 4.5
±.00 – 4.5
%
%
%
Primary earth
current
00m0 – 99m9
100m – 999m
.000 – 999.
k000 – k999
1k00 – 9k99
mA*
mA*
A
kA**
kA
Active portion I
P
±00m - ±99m
±.10 – ±999
±k00 – ±k99
±1k0 – ±9k9
mA*
A
kA**
kA
Reactive portion I
Q
±00m - ±99m
±.00 – ±999
±k00 – ±k99
±1k0 – ±9k9
mA*
A
kA**
kA
* rated current transformer 0.019kA
** rated current transformer 20kA
Earth current (normal):
Indication as
Range
Unit
Secondary current
Active portion I
P
Reactive portion I
Q
(E/ER types)
.000 – 15.0
±.00 – 15
±.00 – 15.
x In
x In
x In
Primary earth
current
.000 – 999.
k000 – k999
1k00 – 9k99
10k0 – 99k0
100k – 999k
1M00 – 2M00
A
kA*
kA
kA
kA
MA
Active portion I
P
±.00 – ±999
±k00 – ±k99
±1k0 – ±9k9
±10k – ±99k
±M10 – ±M99
±1M0 – ±2M0
A
kA*
kA
kA
MA
MA
Reactive portion I
Q
±.00 – ±999
±k00 – ±k99
±1k0 – ±9k9
±10k – ±99k
±M10 – ±M99
±1M0 – ±2M0
A
kA*
kA
kA
MA
MA
* rated current transformer >2kA
Earth voltage:
Indication as
Range
Unit
sec. Voltage
000V – 999V
V
primary voltage
.000 – 999V
1K00 – 9K99
10K0 – 99K9
100K – 999K
1M00 – 3M00
KV
KV
KV
KV
MV
5.12.3
Indication of fault data
All faults detected by the relay are indicated on the front
plate optically. For this purpose, the four LEDs (L1, L2,
L3, E) and the four function LEDs (I>, I>>, IE>, IE>> und
→←
) are equipped at
MRI3
. Not only fault messages
are transmitted, the display also indicates the tripped
protection function. If, for example an overcurrent oc-
curs, first the corresponding LEDs will light up. LED I>
lights up at the same time. After tripping the LEDs are lit
permanently.