ABB Relion 670 series - Operation Principle

PID-3923-MONITOREDDATA v4
Table 25: TRM_7I_5U Monitored data
Name Type Values (Range) Unit Description
STATUS BOOLEAN 0=Ok
1=Error
- Analog input module status
PID-3924-MONITOREDDATA v4
Table 26: TRM_9I_3U Monitored data
Name Type Values (Range) Unit Description
STATUS BOOLEAN 0=Ok
1=Error
- Analog input module status
PID-6598-MONITOREDDATA v4
Table 27: TRM_10I_2U Monitored data
Name Type Values (Range) Unit Description
STATUS BOOLEAN 0=Ok
1=Error
- Analog input module status
3.6 Operation principle
SEMOD55028-5 v8
The direction of a current depends on the connection of the CT. The main CTs are typically star
(WYE) connected and can be connected with the Star (WYE) point towards the object or away from
the object. This information must be set in the IED.
The convention of the directionality is defined as follows:
• Positive value of current or power means that the quantity has the direction into the object.
• Negative value of current or power means that the quantity has the direction out from the
object.
For directional functions the directional conventions are defined as follows (see figure
5)
• Forward means the direction is into the object.
•
Reverse means the direction is out from the object.
Section 3 1MRK 502 066-UUS B
Analog inputs
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Technical manual