TB MRF3 04.01 E
27
7
Technical Data
7.1
Measuring input circuits
Rated data:
Nominal voltage U
N
: 100 V, 230 V, 400 V
Nominal frequency f
N
: 50/60 Hz
Operating range: 0.05...2.0 x U
N
Power consumption:
<1 VA at U
N
f = 30 – 80 Hz
Thermal rating:
continuously 2 x U
N
7.2
Common data
Dropout to pickup ratio:
f>: > 99.98 %
f<: < 100.02 %
Dropout time:
60 ms
Time lag error class index E:
±
10 ms
Minimum operating time:
30 ms
Max. allowed interruption of the
auxiliary supply without influence to
the function of the device:
50 ms
Influences on frequency measuring:
Aux. voltage:
in the range 0.8 < U
H
/ U
HN
< 1.2 not additional influences
to be measured
Frequency:
no influences
Influences on delay time:
no additional influences to be measured
GL-Approbation:
98776-96HH
Bureau Veritas Approbation:
2650 6807 A00 H
For additional common data of all
MR
-relays please refer to manual "
MR
- Digital Multifunctional relays".
Summary of Contents for MRF3
Page 1: ...MRF3 Frequency Relay...
