TB MRIK3 12.00 E
35
7
Technical data
For additional common data of all
MR
-relays please refer to manual "
MR
- Digital Multifunctional relays".
7.1
Measuring input circuits
Rated data:
Nominal current I
N
1 A or 5 A
Nominal frequency f
N
50 Hz; 60 Hz adjustable
Power consumption in
current circuit:
at I
N
= 1 A
0.2 VA
at I
N
= 5 A
0.1 VA
Thermal withstand capability
in current circuit:
dynamic current withstand
(half-wave)
250 x I
N
for 1 s
100 x I
N
for 10 s
30 x I
N
continuously
4 x I
N
7.2
Common data
Dropout to pickup ratio:
>97%
Dropout to pickup ratio for
phase current in range
0.2 x I
N
to 0.5 x I
N
:
= 100 %
Returning time:
30 ms
Time lag error class index E:
±
10 ms
Minimum operating time:
30 ms
Transient overreach at
instantaneous operation:
≤
5%
Influences on the current measurement:
Auxiliary voltage:
in the range of 0.8 <U
H
/ U
HN
<1.2
no additional influences can be measured
Frequency:
in the range of 0.9 < f/f
N
< 1.1; <0.2% / Hz
Harmonics:
up to 20% of the third harmonic; <0.08% per percent of the third
harmonic
up to 20% of the fifth harmonic; <0.07% per percent of the fifth
harmonic
Influences on delay times:
no additional influences can be measured
GL-Approbation:
98775-96
Bureau Veritas Approbation:
2 650 6807 A00H
