1MAC309294-MB F Section 3
Basic functions
RER620 77
Technical Manual
Table 93: PH_ORD_IN Input signals
Table 94: PH_ORD_IN Output signals
Settings
The function does not have any parameters available in LHMI or Protection and Control
Relay Manager (PCM600).
3.11.1.13 PH_ORD_OUT block
Function block
Figure 32: Function block
Functionality
Normally, the relay expects to receive voltages, currents and breaker positions in the order
specified by the setting "Phase Rotation". In reality, transmission lines are needed to be
transposed to ensure the line impedance to be as symmetrical as possible under normal
condition. With the system setting "Phase Order Mode", the relay (RER620) can properly
indicate phase measurement and protection function operations, and with help of the
function block PH_ORD_IN (see the detail in section 3.11.1.12), all the related control
functions such as SCBXCBR, SDARRREC etc. provide the system rotation setting based
operations which need to be matched the physical breaker (pole) position order.
This function reorders physical phase the outputs based according to the Global System
"Phase Rotation" setting.
The phase order from actual field outputs could be any of possible six combinations like
ABC, BAC, CAB etc. With this function and the phase order mode setting, the ACT logic
Name Type Default Description
IN1 BOOLEAN 0 Input signal 1
IN2 BOOLEAN 0 Input signal 2
IN3 BOOLEAN 0 Input signal 3
Name Type Description
A BOOLEAN Phase A
B BOOLEAN Phase B
C BOOLEAN Phase C
PH_ORD_OUT
B
OUT1
C
A
OUT2
OUT3
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