Signal
Description
TermIsForcedMaster
Activated when the transformer is selected Master in the master-follower
parallel control mode
TermIsMaster
Activated for the transformer that is master in the master-follower parallel
control mode
termReadyForMSF
Activated when the transformer is ready for master-follower parallel control
mode
raiseVoltageOut
Order from the master to the followers to tap up
lowerVoltageOut
Order from the master to the followers to tap down
Table 432:
Analog signals: ATCCOUT / HORIZx
Signal
Description
voltageBusbar
Measured busbar voltage for this transformer
ownLoad Currim
Measured load current imaginary part for this transformer
ownLoadCurrre
Measured load current real part for this transformer
reacSec
Transformer reactance in primary ohms referred to the LV side
relativePosition
The transformer's actual tap position
voltage Setpoint
The transformer's set voltage (
USet) for automatic control
The TCMYLTC or TCLYLTC function blocks have an output YLTCOUT. As shown
in figure
, this output shall be connected to the input ATCCIN and it contains 10
binary signals and 4 integer signals:
Table 433:
Binary signals: YLTCOUT / ATCCIN
Signal
Description
tapInOperation
Tap changer in operation, changing tap position
direction
Direction, raise or lower, for the most recent tap changer operation
tapInHighVoltPos
Tap changer in high end position
tapInLowVoltPos
Tap changer in low end position
tapPositionError
Error in reading of tap position ( tap position out of range, more than one step
change, BCD code error (unaccepted combination), parity fault, mA out of
range, hardware fault for example, BIM etc.)
tapChgError
This is set high when the tap changer has not carried through a raise/lower
command within the expected max. time, or if the tap changer starts tapping
without a given command.
cmdError
This is set high if a given raise/lower command is not followed by a tap position
change within the expected max. time
raiseVoltageFb
Feedback to TR1ATCC or TR8ATCC that a raise command shall be executed
lowerVoltageFb
Feedback to TR1ATCC or TR8ATCC that a lower command shall be executed
timeOutTC
Setting value of
tTCTimeout that tTCTimeout has timed out.
1MRK502052-UEN B
Section 14
Control
751
Technical manual
Summary of Contents for Relion REG670
Page 1: ...Relion 670 series Generator protection REG670 2 0 IEC Technical manual ...
Page 2: ......
Page 44: ...38 ...
Page 58: ...52 ...
Page 80: ...74 ...
Page 106: ...100 ...
Page 482: ...476 ...
Page 548: ...542 ...
Page 570: ...564 ...
Page 600: ...594 ...
Page 608: ...602 ...
Page 630: ...624 ...
Page 862: ...856 ...
Page 1094: ...1088 ...
Page 1226: ...1220 ...
Page 1250: ...1244 ...
Page 1297: ...1291 ...