Manual 37615C
SPM-D2-10 - Synchronizing Unit
© Woodward
Page 51/68
Synchronization
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Configure Synchronization
CAUTION
Please consider that the unit does not have an internal rotating field monitoring.
The unit assumes always a clockwise phase rotation direction of all voltage systems, which are meas-
ured.
A rotating field monitoring must be provided by the customer in order to avoid a CB closure with a
counter-clockwise rotating field.
Parameter 6665
Synchronizing
functions ON
Synchronization functions
ON/OFF
ON
................ The generator frequency and voltage is adjusted to the permissible dif-
ferential ranges for the busbar/mains prior to issuing a connect com-
mand. The subsequent screens of this function are displayed.
OFF
.............. Synchronization does not occur, but no-load control is performed if
necessary. A connect command is not output. The subsequent screens
of this function are not displayed.
Parameter 5701
Synchronization
df max = 0.00Hz
Max. perm. frequency differential (pos. slip)
0.02 to 0.49 Hz
This value specifies the upper generator frequency limit for breaker closure. A close
command will not be issued until the generator and busbar/mains frequency differen-
tial falls below the value configured in this screen. A positive value corresponds to
positive slip
generator frequency is greater than the busbar frequency.
Parameter 5702
Synchronization
df min =-0.00Hz
Max. perm. differential frequency (neg. slip)
0.00 to -0.49 Hz
This value specifies the lower generator frequency limit for breaker closure. A close
command will not be issued until the generator and busbar/mains frequency differen-
tial exceeds the value configured in this screen. A negative value corresponds to neg-
ative slip
generator frequency is less than the busbar frequency.
Parameter 5700
Synchronization
dV max = 00V
Max. perm. differential voltage
1 to 60 V
This value specifies the maximum permissible voltage differential for breaker clo-
sure. A close command will not be issued until the generator and busbar/mains volt-
age differential falls below the value configured in this screen.
Parameter 3416
Synchronization
Brk.hold T>0.00s
Min. pulse duration of connect relay
0.04 to 0.50 s
The duration of the connect pulse can be adjusted to meet the requirements of the
switchgear.
