GE Multilin F650 User Manual

5-84 F650 Digital Bay Controller GE Multilin
5.5 CONTROL ELEMENTS 5 SETPOINTS
5
Comparing the voltage values for line voltage (V1) and busbar voltage (V2) at both sides of the breaker, the relay can
determine the synchronism situation of the unit (see Table 2–73:).
Being:
V
1
line voltage
V
2
bus voltage
V
L
Minimum acceptable voltage by setpoint to establish synchronism conditions (dead line and bus levels).
V
H
Appropriate voltage to establish synchronism conditions, configured by setpoint (live line and bus levels).
Table 5–74: SYNCHRONISM CONDITIONS
Table 5–74: shows the different synchrocheck and closing logic situations, that can be produced depending on
the line and busbar voltage levels.
Live Line – Live Bus (Synchronism check): Only in case number (2), with live line and live bus, the unit will start
evaluating the line and busbar voltage comparison with respect to the setpoint V
set
established by setpoint (Max Volt Difference). In this case, if the voltage difference is
lower than V
set
, the synchronism check unit (25) will verify the angle difference 
adjusted by setpoint (Max Angle Difference).
Dead Line – Dead Bus (DL - DB): Case number (3) will not allow the synchronism function, but it will allow DL-DB
operation logic, if this logic is enabled by setpoint (DL-DB Function).
Dead Line – Live Bus (DL - LB): Case number (6) will not allow the synchronism function, but it will allow DL-LB Operation
logic, if this logic is enabled by setpoint (DL-LB Function)
Live Line – Dead Bus (LL - DB): Case number (7) will not allow the synchronism function, but it will allow LL-DB operation
logic, if this logic is enabled by setpoint (LL-DB Function)
Case numbers (1), (4) and (5) are not considered neither for synchronism check purposes, nor for closing logic.
SYNCHRONISM SITUATION SYNCHRONISM
CHECK
CLOSING LOGIC LINE VOLTAGE
LEVELS
BUSBAR VOLTAGE
LEVELS
(1) V
L
< (V
1
& V
2
)< V
H
Not permitted Not permitted V1 > dead line level
V1 < live line level
V2 > dead bus level
V2 < live bus level
(2) (V
1
& V
2
) > V
H
Permitted Live Line – Live Bus V1 > live line level V2 > live bus level
(3) (V
1
& V
2
) < V
L
Not permitted Dead Line – Dead Bus V1 < dead line level V2 < dead bus level
(4) (V
1
< V
L
) & (V
L
< V
2
< V
H
) Not permitted Not permitted V1 < dead line level V2 > dead bus level
V2 < live bus level
(5) (V
2
< V
L
) & (V
L
< V
1
< V
H
) Not permitted Not permitted V1 > dead line level
V1 < live line level
V2 < dead bus level
(6) (V
1
< V
L
) & (V
2
> V
H
) Not permitted Dead Line – Live Bus V1 < dead line level V2 > live bus level
(7) (V
2
< V
L
) & (V
1
> V
H
) Not permitted Live Line – Dead Bus V1 > live line level V2 < dead bus level

GE Multilin F650 Specifications

General

Brand	GE
Model	Multilin F650
Category	Controller
Language	English