Description Of Configuration A25 - ABB RELION RET670 Applications Manual

Section 3
Configuration
3.1.1.2
62

Description of configuration A25

The configuration of the IED is shown in Figure 3.
This configuration is used when RET670 is used as a separate tap changer control IED.
It can be used for single or parallel service where the communication between up to
eight control function blocks are either internal or over IEC 61850-8-1.
Both automatic and manual tap changer control are provided in the configuration. If the
manual control is required to be separate from the automatic control, it can be done in
any other IED670 where the local HMI interfaces to show position. Switching Auto-
Manual, Raise and Lower commands, and so on can be provided.
1MRK 504 163-UUS A
GUID-D7CB2E00-B396-487C-8946-4FF6A2E056D9 v4
Transformer protection RET670 2.2 ANSI
Application manual