SEG Electronics GmbH
Manual MRG3
38
DOK-TD-MRG3, Rev. D
Function
Display shows
Pressed pushbuttons
required
Correspond-
ing LED
Chap-
ter
time factor for the
characteristics
without unit
Reset- Mode
0s/60s
<SELECT/RESET><+> <-> I + 1 + > + t>
Short circuit I>>
Trip delay for I>>
Setting value in %
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
I + 2 + >
I + 1 + > + t>
Residual voltage U0>
Indication “Warning” or
“Trip”
warn/trip
<SELECT/RESET><+><->
U
0
+ 1
Residual voltage U0>
Trip delay for U0>
Setting value in %
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U0 + 1 + >
U0 + 1 + > + t>
Residual voltage U0>>
Trip delay forU0>>
Setting value in %
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
U0 + 2 + >
U0 + 2 + > + t>
Earth-over current IE>
Setting value in %
<SELECT/RESET><+><->
one time for each value
IE + 1 + >
Earth over current IE>
indication Warning or
Trip
Warn/trip
<SELECT/RESET><+><->
IE + 1+2
Tripping characteristic
for earth current
DEFT, NINV, VINV,
EINV, LINV, RINV, RXID
<SELECT/RESET><+><->
one time for each value
IE + 1
Tripping delay for IE>
or
time factor for the
characteristics in for-
ward direction
Setting value in seconds
without unit
<SELECT/RESET><+><->
one time for each value
IE + 1 + > + t> +
Tripping delay for IE>
or
time factor for the
characteristics in re-
verse direction
Setting value in seconds
without unit
<SELECT/RESET><+><->
one time for each value
IE + 1 + > + t> +
Reset- Mode
0s/60s
<SELECT/RESET><+> <-> IE + 1+ > + t>
Earth short-circuit IE>>
Tripping delay for IE>>
in forward direction
Setting value in %
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
I + 2 + >
I + 2 + > + t> +
Earth short-circuit IE>>
Tripping delay for IE>>
in reverse direction
Setting value in %
Setting value in seconds
<SELECT/RESET><+><->
one time for each value
I + 2 + >
I + 2 + > + t> +
switching over of iso-
lated
(sin
) or compen-
sated (cos
) grids
SIN/COS
<SELECT/RESET><+> <-> IE + 1 + 2
Tripping delay of the
C.B. failure protection
Setting value in seconds <SELECT/RESET><+><->
one time for each value
CB + t>
Slave address of the
serial
interface
RS_1....RS32
<SELECT/RESET><+><->
one time for each value
Number of recorded
sequences of events
for MRG3; MRG3-U0;
1x10; 1x5; 2x5; 3x2.
4x2.; 7x1.; 8x1. (50Hz)
1x8.; 1x4.; 2x4.; 3x2.
4x2.; 7x1.; 8x1. (60Hz)
<SELECT/RESET><+><->
one time for each value
FR
Number of recorded
sequences of events
for MRG3-I; MRG3-
IU0; MRG3-IER
1x20; 1x10; 2x10; 3x5;
4x5; 7x2.; 8x2. (50Hz)
1x16; 1x16; 2x8.; 3x4;
4x4.; 7x2.; 8x2. (60Hz)
<SELECT/RESET><+><->
one time for each value
FR
Trigger signal for the
failure event recorder
TEST, P_UP, A_PI,
TRIP
<SELECT/RESET><+><->
one time for each value
FR
pre-trigger period for
the failure event re-
corder
Setting value in seconds <SELECT/RESET><+><->
one time for each value
FR
Baud-Rate
1)
2400-9600
<SELECT/RESET><+><->
one time for each value
Parity-Check
1)
even/odd/no
<SELECT/RESET> <+><->
blocking of the protec-
tive function
BLOC, NO_B
<+> <-><SELECT/RESET> U; f;
/df; I;
I
E
;U
0
; 1; 2; 3; <; >;
CB