ABB REC650 - Page 200

This setting is used to compensate the phase shift between the measured bus voltage and
line voltage when:
• a. different phase-neutral voltages are selected (for example UL1 for bus and UL2 for
line);
• b. one available voltage is phase-phase and the other one is phase-neutral (for
example UL1L2 for bus and UL1 for line).
The set value is added to the measured line phase angle. The bus voltage is reference
voltage.
If single phase UL1 or two-phase UL1L2 is not available, parameters
PhaseShift and URatio can be used to compensate for other choices.
Table 14: Voltage settings examples
Line voltage
Bus voltage Bus voltage pre-
processing
SESRSYN setting
PhaseShift URatio
UL1 UL1 Connect UL1 to
channel 1
- 1
UL2 Connect UL2 to
channel 1
- 120º 1
UL3 Connect UL3 to
channel 1
+ 120º 1
UL1L2 UL1L2 Connect UL1L2
to channel 1
- 1
UL2L3 Connect UL2L3
to channel 1
- 120º 1
UL3L1 Connect UL3L1
to channel 1
+ 120º 1
UL1 UL1L2 Connect UL1L2
to channel 1
- 30º 1.73
UL2L3 Connect UL2L3
to channel 1
- 90º 1.73
UL3L1 Connect UL3L1
to channel 1
+150º 1.73
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
Section 10 1MRK 511 286-UUS A
Control
194
Application manual