TB MRM3 07.01 E
33
7.3.3 Load Unbalance Protection
Parameter
LED
Setting range
Step
Tolerance
Load unbalance
I2>
0,02...1,00
EXIT
Pick-up value negative
phase sequence system
- displayedin x I
N
- Step switched off
0.001; 0.002; 0.005;
0.01;
0.02 x I
N
±
3% of setting value
or
±
10mA
Characteristics
I2>+CHAR DEFT
INVS
definite DMT
inverse IDMT (EN 60255-
3)
Time delay/
characteristic parameter
I2+t>
At DEFT:
1.00 ...600
at INVS:
10.0 - 1600
EXIT
Trip delay in s
Characteristic parameter
Warning only
0.1; 0.2; 0.5; 1.0; 2.0;
5.0; 10.0 s
0.5; 1.0; 2.0; 5.0;
10.0; 20.0; 50.0;100 s
±
3% of the setting
value or
±
20ms
±
3% referring to cur-
rent measuring value
or
±
20ms
(See EN 60255-3 ??)
7.3.4 Earth fault protection
Parameter
LED
Setting range
Step
Tolerance
Earth fault protection
I
E>
0,01...2,0
EXIT
pickup value x I
N
element blocked
0.001; 0.002; 0.005;
0.01; 0.02;
0.05 x I
N
±
3% of the setting
value or
±
0.5% of the
rated value
Characteristics
I
E
+CHAR
DEFT
NINV
VINV
EINV
RINV
LINV
RXIDG
definite
normal inverse
very inverse
extremely inverse
RI-inverse
Long-term inverse
Special characteristic
Time delay
Characteristics parame-
ter
I
E>
+t>
at DEFT:
0.04 ...260
at _INV:
0.05 - 20
EXIT
Trip delay in s
Characteristic parameter
Warning only
0,02; 0,05; 0,1; 0,5;
1,0; 2,0; 5,0;
10,0; 20,0 s
0,01; 0,02; 0,05; 0,1;
0,2
±
3% of the setting
value or
±
20ms
±
3% referring to cur-
rent measuring value
or
±
20ms
(See EN 60255-3)
Table 7.1: Setting ranges and steps
7.3.5 Circuit breaker failure protection
Parameter
LED
Setting range
Step
Tolerance
CB+t>
0.1...2.00
EXIT
CB time
Step switched off
