ABB Relion 670 Series Commissioning Manual page 161

1MRK 511 403-UEN E
1. Increasing or decreasing the injected voltage or current at the analogue inputs of the IED.
2. Checking that the corresponding commands (Lower or Raise) are issued by the voltage
control function.
Setting confirmation is an important step for voltage control in the installation and
commissioning phase to ensure consistency of power systems base quantities, alarm/
blocking conditions and parallel control settings for each transformer control function.
Before starting any test, verify the following settings in PCM600 or the local HMI for TR1ATCC,
TR8ATCC and TCMYLTC and TCLYLTC.
• Confirm power system base quantities
Main menu/Settings/IED Settings/Control/TransformerVoltageControl(ATCC,90)/
TR1ATCC:x/TR8ATCC:x/General
and
Main menu/Settings/IED Settings/Control/TransformerVoltageControl(ATCC,90)/
TR1ATCC:x
.
• Confirm that the setting for short circuit impedance
accordance with transformer data:
•
• Confirm that the setting for TCMYLTC or TCLYLTC is in accordance with transformer data:
•
•
•
•
Bay control REC670
Commissioning manual
Short circuit impedance, available on the local HMI under Main menu/Settings/IED
settings/Control/TransformerVoltageControl(ATCC,90)/TR1ATCC:x/TR8ATCC:x/
Xr2.
Tap change timeout duration - effectively the maximum transformer tap change
tTCTimeout , available on the local HMI under Main menu/Settings/IED
time,
Settings/Control/TransformerTapControl(YLTC,84)/TCMYLTC:x/TCLYLTC:x/
tTCTimeout.
Load tap changer pulse duration - required length of pulse from IED to load tap
tPulseDur , available on the local HMI under Main menu/Settings/IED
changer,
Settings/Control/TransformerTapControl(YLTC,84)/TCMYLTC:x/TCLYLTC:x/
tPulseDur.
Transformer tap range,
under Main menu/Settings/IED Settings/Control/
TransformerTapControl(YLTC,84)/TCMYLTC:x/TCLYLTC:x/HighVoltTap and .
Load tap changer code type - method for digital feedback of tap position,
CodeType , available on the local HMI under Main menu/Settings/ IED settings/
Control/TransformerTapControl(YLTC,84)/TCMYLTC:x/TCLYLTC:x/CodeType.
During the installation and commissioning, the behavior of the voltage control
functions for different tests may be governed by a parameter group, available
on the local HMI under Main menu/Settings/IED Settings/Control/
TransformerVoltageControl(ATCC,90)/TR1ATCC:x/TR8ATCC:x. These
parameter settings can cause a Total Block, Automatic Block or Alarm for a
variety of system conditions including over and under voltage, over current and
tap changer failure. It is important to review these settings and confirm the
intended response of the voltage control function for different secondary
injection tests.
© Copyright 2017 ABB. All rights reserved
I1Base , I2Base , UBase .
LowVoltTap and HighVoltTap , available on the local HMI
Testing functionality by secondary injection
Xr2 for TR1ATCC or TR8ATCC is in
Section 11
155