Manual 37443A DSLC-2 - Digital Synchronizer and Load Control
© Woodward Page 79/226
The busbar potential transformer primary voltage is entered in this
parameter.
The value can be:
• Phase - phase
• Phase - neutral
They dependent on the 1Ph 2W voltage input (parameter 1858)
setting. The busbar rated voltage is used as a reference figure for
all busbar voltage related functions.
NOTE: This value refers to the rated voltage of busbar and is the
voltage measured on the potential transformer primary.
Phase – phase: The unit is configured for measuring phase-
phase voltages, if 1Ph 2W measuring is selected.
Phase – neutral: The unit is configured for measuring phase-
neutral voltages, if 1Ph 2W measuring is selected.
NOTE: When this parameter is configured wrong the synchroniza-
tion phase angle Gen <-> Bus would be wrong calculated.
phase
rotation
3 CW / CCW CW
CW: A clockwise rotation field is considered for 1Ph 2W measur-
ing.
CCW: A counter-clockwise rotation field is considered for 1Ph 2W
In case of a 3-phase measurement connection of the auxiliary
busbar, the connection has to be defined.
3Ph 4W: Wye connected voltages
Generator voltage is connected using all 3 phases and a neutral.
This measurement can be directly connected or through potential
transformers (PTs). Voltage monitoring is configured in the
“VAR/PF Menu 4”, parameter 1770. This settings determines if the
DSLC-2 uses “Phase - phase” or “Phase - neutral” voltage for pro-
tection.
3Ph 3W: Delta connected voltages
Generator voltage is connected using all 3 phases. This mea-
surement can be directly connected or through potential transfor-
mers (PTs). Voltage monitoring is configured in the “VAR/PF
Menu 4”, parameter 1770. This settings must be configured for
No: The auxiliary busbar measurement is not used.
Yes: The auxiliary busbar measurement is used and becomes a
part of the operating range- and the phase rotation monitoring.
The auxiliary busbar measurement is displayed in Menu 7.
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