Woodward LS-5 v2 Series - Page 30

The Sync. Check functionality is available in every application mode, but be aware that
application modes can 󰈡x parameters being relevant for this functionality. The
application mode L-GGBMCB (
A05
) 󰈡xes those parameters!
Synchronization mode is “Phase Matching” only. (Parameters 5730 'Synchronization CBA'
and 5729 'Synchronization CBB' don't care.)
Synch. Check command variables don’t care about:
• System conditions like blocking from other devices e.g. dead bus interlocking
• Synchronization signals from discrete inputs (DI) like enable close CBA or open CBA
• Synchronization control conditions like mains settling time
Variables and Parameters
02.29 Sync Condition depends on
• Voltage,
•
Frequency and
• Phase angle.
The command variable Sync Condition 02.29 ╚═▷ “9.3.4.3 Group 02: Systems Condition”
is true, if the phase matching synchronisation conditions are met according to:
- the following parameters for CBA 5711, 5712, 5710, 8825, 8824, 5713, 5714 and 5717.
Parameter 5730 doesn’t care. For more details refer to ╚═▷ “4.4.2.3.1 Synchronization
CBA”.
- the following parameters for CBB
5701, 5702, 5700, 8825, 8824, 5703, 5704 and 5707.
Parameter 5729 doesn’t care. For more details refer to ╚═▷ “4.4.2.4.1 Synchronization
CBB”.
02.30 Dead Bus Closure Condition depends on
• Voltage System A and System B and
• Dead Bus con󰈡guration.
The command variable Dead Bus Closure Condition 02.30 ╚═▷ “9.3.4.3 Group 02:
Systems Condition” is true, if the dead bus closure conditions are met according to
parameters 3432, 5820, 8805, 8802, 8803 and 8804. For more details refer to ╚═▷
Tab. 16.
02.28 Sync. Check Relay depends on
• Sync. Check condition and
• Dead Bus Closure condition.
The command variable Sync. Check Relay 02.28 ╚═▷ “9.3.4.3 Group 02: Systems
Condition” is true, if the phase matching synchronisation conditions are met according to
parameters 5701, 5702, 5700, 8825, 8824, 5703, 5704, and 5707 (parameter 5729
doesn’t care) or
30 LS-5 v2 Series 37650
2 System Overview
2.5 Synch. Check Functionality
Released