26
TB MRI3-ITE(R) 12.00 E
5.8
Indication of measuring and fault
values
5.8.1
Indication of measuring values
The following measuring quantities can be indicated
on the display during normal service:
•
Aparent Current in phase 1 (LED L1 green)
•
Aparent Current in phase 2 (LED L2 green)
•
Aparent Current in phase 3 (LED L3 green)
•
Aparent Carth current (LED E green)
•
Active Earth current (LED E and I
P
green) *
•
Reactive earth current (LED E and I
Q
green) *
•
Residual voltage UE (LED U
E
) only at ITER-relay type
•
Angle between I
E
and U
E
(only at ITER relay type)
5.8.2
Unit of the measuring values
displayed
The measuring values can optionally be shown in the
display as a multiple of the "sec" rated value (xln) 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
Earth current
Indication as
Range
Unit
Secondary current
Active portion I
P
Reactive portion I
Q
(E/SR/ER types)
.000 – 15.0
±.00 – 40
±.00 – 40.
x In
x In
x In
Secondary current
Active portion I
P
Reactive portion I
Q
(X/XR types)
0.00 - 150
±.00 – 150
±.00 – 150
% I
N
% I
N
% I
N
Primary earth
current
.000 – 999.
k000 – k999
1k00 – 9k99
10k0 – 99k0
100k – 999k
1M00 – 2M00
A
kA*
kA
kA
kA
MA
Earth voltage
Indication as
Range
Unit
Sec. voltage
000V – 999V
V
Primary voltage
.000 – 999
1K00 – 9K99
10K0 – 99K0
100K – 999K
1M00 – 9M99
kV
kV
kV
kV
MV
5.8.3
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-ITER
. If, for ex-
ample an overcurrent occurs, first the jeweiligen Pha-
sen will light up. LED I> lights up at the same time. Af-
ter tripping the LEDs are lit permanently.
