ABB REF615 L - Tap changer control with voltage regulator OLATCC

9.4.11 Technical revision history
Table 626: Technical revision history
Technical revision Change
B The PROT_DISA output removed and removed
the related settings
C The default value of the CB closed Pos status
setting changed from "True" to "False"
9.5 Tap changer control with voltage regulator OLATCC
9.5.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Tap changer control with voltage
regulator
OLATCC COLTC 90V
9.5.2 Function block
GUID-D28AEF4D-C38D-4F4A-908F-22FBFAB139CB V2 EN
Figure 395: Function block
9.5.3 Functionality
The tap changer control with voltage regulator function OLATCC (on-load tap
changer controller) is designed for regulating the voltage of power transformers
with on-load tap changers in distribution substations. OLATCC provides a manual
or automatic voltage control of the power transformer by using the raising or
lowering signals to the on-load tap changer.
Section 9 1YHT530004D05 D
Control functions
726 615 series
Technical Manual