Samlexpower PST-3000-12, Руководство пользователя

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38 | SAMLEX AMERICA INC.
SECTION 8 | Installation
8.5 AC SIDE CONNECTIONS
WARNING! Preventing Paralleling of the AC Output
1. The AC output of the inverter cannot be synchronized with another AC
source and hence, it is not suitable for paralleling. The AC output of the
inverter should never be connected directly to an electrical Panelboard / Load
Center which is also fed from the utility power/ generator. Such a connection
will result in parallel operation and AC power from the utility / generator will
be fed back into the inverter which will instantly damage the output section
of the inverter and may also pose a fire and safety hazard. If an electrical
Panelboard / Load Center is being fed from the utility power / generator and
the inverter is required to feed this panel as backup power source, the AC
power from the utility power/ generator and the inverter should first be fed
to a manual selector switch / Automatic Transfer Switch and the output of
the manual selector switch / Automatic Transfer Switch should be connected
to the electrical Panelboard / Load Center.
2. To prevent possibility of paralleling and severe damage to the inverter, never
use a simple jumper cable with a male plug on both ends to connect the AC
output of the inverter to a handy wall receptacle in the home / RV.
8.5.1 Neutral to Chassis Ground Bond
The Neutral slots of the NEMA5-20R GFCI Duplex Receptacles (6, Fig 6.1a) and the Neu-
tral Terminal for hardwiring (13, Fig 6.1b) are internally bonded to the metal chassis of
the inverter.
8.5.2 AC Output Connection Through Ground Fault Circuit
Interrupter (GFCI)
An un-intentional electric path between a source of current and a grounded surface
is referred to as a “Ground Fault”. Ground faults occur when current is leaking some-
where. In effect, electricity is escaping to the ground. How it leaks is very important. If
your body provides a path to the ground for this leakage (dry human body has a low
resistance of only around 1 K Ohm), you could be injured, burned, severely shocked
or electrocuted. A Ground Fault Circuit Interrupter (GFCI) protects people from electric
shock by detecting leakage and cutting off the AC source.
The AC output of this inverter is available through a NEMA5-20R GFCI Duplex Recepta-
cle (6, Fig 6.1a) and also through hardwiring terminal connections located in a com-
partment (13, Fig 6.1a) behind the GFCI receptacle. The Neutral slot of this receptacle
(longer rectangular slot) and the Neutral Terminal "N" of the Terminal Block for AC out-
put hardwiring (13, Fig 6.1b) are internally bonded to the metal chassis of the inverter.
There is a Green indicator light on the GFCI outlet that will be lighted when the GFCI is
operating normally. The light will switch OFF if the GFCI is tripped.