Woodward
Manual MRI3 GB
56
DOK-TD-MRI3 Rev.A
7.3.4 Earth fault protection (ER/XR-Type)
Setting
range Step
Tolerance
I
E>
t
IE>
0.01...0.45 x I
N
(EXIT)
(ER)
0.1...4.5% I
N
(EXIT)
(XR)
0.05...260 s (EXIT)
0.001; 0.002; 0.005; 0.01 x I
N
0.01%; 0.02%; 0.05%; 0.1% I
N
0.01; 0.02; 0.05; 0.1; 0.2; 0.5;
1.0; 2.0; 5.0; 10; 20 s
5% from set value or
0.3% I
N
(ER);
0,03% I
N
(XR)
3% or
15 ms
I
E>>
t
IE>>
0.01...0.45 x I
N
(EXIT)
(ER)
0.1...4.5% I
N
(EXIT)
(XR)
0.05...10 s (EXIT)
0.001; 0.002; 0.005; 0.01 x I
N
0.01%; 0.02%; 0.05%; 0.1% I
N
0.01; 0.02; 0.05 s; 0.1 s; 0.2 s
5% from set value or
0,3% I
N
(ER);
0,03% I
N
(XR)
3% or
15 ms
U
E>
U
N
= 100 V:
3 PHA/e-n: 1 - 70 V
1:1: 1 - 120 V
U
N
= 230 V:
3 PHA/e-n: 2 - 160 V
1:1: 2 - 300 V
U
N
= 400 V:
3 PHA/e-n: 5 - 300 V
1:1: 5 - 500 V
1 V
1 V
2 V
2 V
5 V
5 V
5% from set value or
<0,5% U
N
7.3.5 Block/Trip – time
Block/Trip
0.1...2.0 s; EXIT
0.01; 0.02; 0.05; 0.1 s
±1% or ±10 ms
7.3.6 Switch failure protection
t
CBFP
0.1...2.0 s; EXIT
0.01; 0.02; 0.05; 0.1 s
±1% or ±10 ms
7.3.7 Interface
parameter
Function Parameter
Modbus-Protocol
RS485 Open Data Protocol
RS
Slave-Adresse
1 - 32
1 - 32
RS
Baud-Rate*
1200, 2400, 4800, 9600
9600 (fest)
RS
Parität*
even, odd, no
„even Parity“ (fest)
*only Modbus Protocol
7.3.8 Parameter
for
the fault recorder
Function Parameter
Adjustment example
FR
Number of recordings
(1)* 2 x 8 s; (3)* 4 x 4 s; (7)* 8 x 2 s (50
Hz) (1)* 2 x 6.66 s, (3)* 4 x 3.33 s, (7)* 8 x
1.66 s
FR
Saving of the recording at the occurrence
P_UP; TRIP; A_PI; TEST
FR
Pre-trigger time
0.05 s – 8.00 s
* is written over at new trigger signal