14
14
4.0 GFPD-600V OPERATION
4.1 Ground-Fault Detection
Ground-fault protection is used in electrical systems
to prevent current from following any unintended
paths. It is critical to detect any stray current, and to
interrupt (break) the circuit until safe operation can be
restored.
Any current imbalance between the (+) and (-) con-
ductors of a circuit indicates a ground-fault.
Morningstar’s GFPD-600V will detect this condition,
and break the circuit on both the (+) and (-) legs,
ensuring interruption.
Figure 8. Completing Wiring for DB Model
PV INPUTS
4
2
1
3
BATTERY
TERMINAL
LUGS
(+)
(+)
(+)
(+)
(+)
(-)
(-)
(-)
(-)
(+)
(-)
TO BATTERY
High-low Voltage
Barrier Not Shown
PV DISCONNECT
PV
TERMINAL
LUGS
EARTH GROUND
CASE and OTHER
DEAD METAL
Wire Tie
BATTERY
DISCONNECT
BREAKER
(-)
