ABB RELION RET670, Commissioning Manual, Page: 252 / 328

Bus 1
Bus 2
CB1 52
(SESRSYN 1)
CB3 352
(SESRSYN 3)
CB2 252
(SESRSYN 2)
Line 1 Line 2
LN1 989 LN2 989
ANSI11000274.en.v1
ANSI11000274 V1 EN
Figure 54: Objects used in the voltage selection logic
11.10.1.5 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to
Disabled . Restore connections and settings to their original values, if they were changed
for testing purposes.
11.10.2 Apparatus control APC
The apparatus control function consists of four types of function blocks, which are
connected in a delivery-specific way between bays and to the station level. For that reason,
test the total function in a system, that is, either in a complete delivery system as an
acceptance test (FAT/SAT) or as parts of that system.
If a block/unblock command is sent from remote to function, while the
IED is shut down, this command will not be recognized after the start up,
thus the command that was sent prior to the shut down is used. In such
cases, where there is a mismatch, the user is advised to make a complete
cycle of block/unblock operations to align the statuses.
Section 11
1MRK 504 165-UUS -
Testing functionality by secondary injection
246 Transformer protection RET670 2.2 ANSI
Commissioning manual