Setting Parameters - ABB RET670 Applications Manual

Section 3
IED application
3.12.4.3
Table 165: TR1ATCC (90) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
I1Base 1 - 99999
I2Base 1 - 99999
VBase 0.05 - 2000.00
MeasMode A
B
C
AB
BC
CA
PosSeq
TotalBlock Disabled
Enabled
AutoBlock Disabled
Enabled
FSDMode Disabled
Auto
AutoMan
tFSD 1.0 - 100.0
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698
counter that is, the total number of operations at rated load that the tap changer is
designed for.
EnabTapCmd: This setting enables/disables the lower and raise commands to the tap
changer. It shall be Enabled for voltage control, and Disabled for tap position feedback
to the transformer differential protection T2WPDIF (87T) or T3WPDIF (87T).
TCMYLTC and TCLYLTC (84) Setting group
General
Operation: Switching the TCMYLTC or TCLYLTC (84) function Enabled/Disabled.
IBase: Base current in primary Ampere for the HV-side of the transformer.
tTCTimeout: This setting gives the maximum time interval for a raise or lower
command to be completed.
tPulseDur: Length of the command pulse (VRAISE/VLOWER) to the tap changer. It
shall be noticed that this pulse has a fixed extension of 4 seconds that adds to the
setting value of tPulseDur.

Setting parameters

Unit Step
- -
A 1
A 1
kV 0.05
- -
- -
- -
- -
s 0.1
Default Description
Disabled Operation Disable / Enable
3000 Base setting for HV current level in A
3000 Base setting for LV current level in A
400.00 Base setting for voltage level in kV
PosSeq Selection of measured voltage and current
Disabled Total block of the voltage control function
Disabled Block of the automatic mode in voltage
control function
Disabled Fast step down function activation mode
15.0 Time delay for lower command when fast
step down mode is activated
1MRK504116-UUS C
Application manual