ABB REL650 Applications Manual page 306

Section 11
Control
300
Table 17:
Line voltage
UL1
UL1L2
UL1
Synchronizing settings
OperationSynch
The setting Disabled disables the Synchronizing function. With the setting Enabled, the
function is in service and the output signal depends on the input conditions.
FreqDiffMin
The setting FreqDiffMin is the minimum frequency difference where the system are
defined to be asynchronous. For frequency difference lower than this value the systems
are considered to be in parallel. A typical value for the FreqDiffMin is 10 mHz. Generally,
the value should be low if both, synchronizing and synchrocheck function is provided as
it is better to let synchronizing function close as it will close at the exact right instance if
the networks run with a frequency difference.
Note! The FreqDiffMin shall be set to the same value as FreqDiffM
respective FreqDiffA for SESRSYN (25)irrespective of whether the
functions are used for manual operation, autoreclosing or both.
FreqDiffMax
Voltage settings examples
Bus voltage Bus voltage pre-
processing
UL1 Connect UL1 to
channel 1
UL2 Connect UL2 to
channel 1
UL3 Connect UL3 to
channel 1
UL1L2 Connect UL1L2
to channel 1
UL2L3 Connect UL2L3
to channel 1
UL3L1 Connect UL3L1
to channel 1
UL1L2 Connect UL1L2
to channel 1
UL2L3 Connect UL2L3
to channel 1
UL3L1 Connect UL3L1
to channel 1
1MRK 506 334-UUS A
SESRSYN setting
PhaseShift URatio
- 1
- 120º 1
+ 120º 1
- 1
- 120º 1
+ 120º 1
- 30º 1.73
- 90º 1.73
+150º 1.73
Application manual