Direct current measuring unit
ABB Network Partner AB
1MRK 580 154-XEN
Page
7 - 11
Version 1.0-00
The complete measuring module is equipped with advanced self-supervi-
sion. Only the outermost analogue circuits cannot be monitored. The A/D
converter, optocouplers, digital circuitry, and DC/DC converters, are all
supervised on the module. Over the CAN bus, the measuring module
sends a message to the MPM for any detected errors on the supervised cir-
cuitry.
6 Setting
You must use the SMS and the CAP 531 configuration tool to set all
remaining parameters that are related to different alternating measuring
quantities.
Users can set the 13 character name for each measuring channel.
Set all monitoring operating values and the hysteresis directly in the mA
of the measured input currents from the measuring transducers.
You can display local and remote measured quantities according to the
corresponding modules that are separately set for each measuring channel
by the users (five characters).
The relation between the measured quantity in power system and the set-
ting range of the direct current measuring channel corresponds to this
equation:
Where:
is a set value for the minimum operating current of a channel in
mA
is a set value for a maximum operating current of a channel in
mA
is a value of a primary measuring quantity corresponding
to the set value of minimum operating current of a channel
is a value of a primary measuring quantity corresponding
to the set value of maximum operating current of a channel
.......is the actual value of the primary measured quantity
Set the dead-band limits directly in the mA of the input direct current for:
• Amplitude dead-band supervision
• Integrating dead-band supervision
You must observe the dependency of the
[mAs] on the sampling
frequency, which corresponds to this equation:
where:
Value
ValueMin
I
IMin
–
(
)
ValueMax
ValueMin
–
IMax
IMin
–
-----------------------------------------------------------
⋅
+
=
IMin
IMax
ValueMin
IMin
ValueMax
IMax
Value
IDBS
IDBS
IDeadB
SampRate
--------------------------
IDeadB ts
⋅
=
=
Содержание REC 561
Страница 19: ...ABB Network Partner AB Introduction REC 561 Version 1 0 00 1MRK 580 146 XEN Page 2 14 ...
Страница 31: ...ABB Network Partner AB Requirements and basic technical data REC 561 Version 1 0 00 Page 2 26 ...
Страница 49: ...ABB Network Partner AB Page IV ...
Страница 67: ...ABB Network Partner AB Installation and commissioning Version 1 0 00 1MRK 580 166 XEN Page 3 18 ...
Страница 85: ...ABB Network Partner AB Local man machine communication Version 1 0 00 1MRK 580 156 XEN Page 3 36 ...
Страница 121: ...ABB Network Partner AB Menu tree Appendix Version 1 0 00 1MRK 580 158 XEN Page 3 72 ...
Страница 139: ...ABB Network Partner AB Terminal identification Version 1 0 00 1MRK 580 160 XEN Page 4 4 ...
Страница 143: ...ABB Network Partner AB Activation of setting group Version 1 0 00 1MRK 580 162 XEN Page 4 8 ...
Страница 175: ...ABB Network Partner AB Configurable logic Version 1 0 00 1MRK 580 161 XEN Page 4 40 ...
Страница 261: ...ABB Network Partner AB Auto reclosing Single and or three phase Version 1 0 00 1MRK 580 170 XEN Page 5 82 ...
Страница 281: ...ABB Network Partner AB Loss of power system voltage Version 1 0 00 1MRK 580 153 XEN Page 5 102 ...
Страница 385: ...ABB Network Partner AB Apparatus control Version 1 0 00 1MRK 580 150 XEN Page 6 100 ...
Страница 495: ...ABB Network Partner AB Interlocking Version 1 0 00 1MRK 580 151 XEN Page 6 210 ...
Страница 515: ...ABB Network Partner AB Event function Version 1 0 00 1MRK 580 140 XEN Page 6 230 ...
Страница 519: ...ABB Network Partner AB Page IV ...
Страница 561: ...ABB Network Partner AB Time synchronisation Version 1 0 00 1MRK 580 135 XEN Page 7 42 ...
Страница 569: ...ABB Network Partner AB Internal events Version 1 0 00 1MRK 580 134 XEN Page 7 50 ...
Страница 599: ...ABB Network Partner AB Index Version 1 0 01 1MRK 580 175 XEN Page 8 6 ...
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