System Split; Figure 168: Check Synchronisation Vector Diagram - GE MiCOM P40 Agile Technical Manual

Chapter 14 - Monitoring and Control
Nomical

Figure 168: Check Synchronisation vector diagram

9.1.5

SYSTEM SPLIT

If the line side and bus side are of the same frequency (i.e. in synchronism) but have a large phase angle between
them (180° +/- the set limits), the system is said to be 'Split'. If this is the case, the device will detect this and issue
an alarm signal indicating this.
The settings specific to System Split functionality are found under the sub-heading SYSTEM SPLIT in the SYSTEM
CHECKS column.
332
Live Volts
Volts
Dead Volts
E01204
0º
Check Sync
Stage 2 Limits
Check Sync
Stage 1 Limits
V
BUS
±180º
System Split
Limits
P14x
Rotating
Vector
V LINE
P14xEd1-TM-EN-1