Signals - ABB Relion Technical Manual

Section 12
Control
12.3.11.5
12.3.11.6
12.3.12
444
Input position (Value) Signal quality
0 (Breaker intermediate)
1 (Breaker open)
2 (Breaker closed)
3 (Breaker faulty)
Any
Any

Signals

Table 261: POS_EVAL Input signals
Name Type
POSITION INTEGER
Table 262: POS_EVAL Output signals
Name Type
OPENPOS BOOLEAN
CLOSEPOS BOOLEAN
Settings
The function does not have any settings available in Local HMI or Protection and Control
IED Manager (PCM600).
Operation principle
The interlocking function consists of software modules located in each control IED. The
function is distributed and not dependent on any central function. Communication
between modules in different bays is performed via the station bus.
The reservation function is used to ensure that HV apparatuses that might affect the
interlock are blocked during the time gap, which arises between position updates. This can
be done by means of the communication system, reserving all HV apparatuses that might
influence the interlocking condition of the intended operation. The reservation is
maintained until the operation is performed.
After the selection and reservation of an apparatus, the function has complete data on the
status of all apparatuses in the switchyard that are affected by the selection. Other
operators cannot interfere with the reserved apparatus or the status of switching devices
that may affect it.
Output OPENPOS
Good
Good
Good
Good
Invalid
Oscillatory
Default Description
0 Position status including quality
Description
Open position
Close position
1MRK 502 048-UUS A
Output CLOSEPOS
0 0
1 0
0 1
0 0
0 0
0 0
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