Xantrex Freedom EX 4000, Руководство по установке

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Basic Installation Procedures
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AC Input
20A 30A 50A
AC inputs to a dual AC line can be supplied from a split-phase or
dual-input AC source such as the utility grid (power company), a
generator, or the output of a transfer switch. The Freedom EX
4000 can be operated from the following types of 120 volt 60 Hz
AC sources:
n
Split phase which typically comes with a 50A outlet
configuration
l
This source type has two lines (L1 and L2), one
neutral (N), and one ground (G). The two 120 VAC
lines (L1 and L2) are 180 degrees out of phase with
each other, so that the two voltages total to 240
volts AC line to line. The voltage between each line
and neutral is still 120 volts AC, and the voltage
between the neutral and ground is approximately
zero.
l
Because the two lines are out of phase, the currents
from each line subtract in the neutral, and the
neutral current will be approximately zero if the
loads are equal. For example, if Line 1 is supplying
20 amps and Line 2 is supplying 15 amps, the
current in the neutral will be 5 amps.
l
See Figure 8 on page 23 for an illustration.
n
Dual input which typically comes when a Dog Bone
Adapter is used to plug to a 30A outlet configuration and
then connected to a 50 A extension cord
l
This source type has two line inputs (L1 and L2),
one neutral (N), and one ground (G). Unlike the split-
phase type, the two lines are in phase (not out of
phase), and must come from the same source. The
voltage between the two lines is zero. The voltage
between each line and the neutral is 120 volts AC,
and the voltage between the neutral and ground is
approximately zero.
l
Because the two lines are in phase, the currents
from each line add together in the neutral. For
example, if Line 1 is supplying 20 amps and Line 2
is supplying 15 amps, the current in the neutral will
be 35 amps.
l
See Figure 9 on page 23 for an illustration.
n
Single phase input which is a typical outdoor 20A outlet
configuration and also the 30A outlet configuration
l
This source type has one line input (AC qualification
on L1 terminal only. Do not use L2 terminal), one
neutral (N), and one ground (G).
l
See Figure 10 on page 23 for an illustration.
AC Output
The output voltage in Battery (Invert) mode on Freedom EX
4000 is 120 VAC, 60Hz.
n
Single AC Line (L1) have a Single Input and Dual Output
lines (L1 and L2) - ( SI-DO ) configuration. See Figure 10 on
page 23 .
n
Dual AC Line (L1 and L2) support Dual Input and Dual
Output lines (L1 and L2) - ( DI-DO ) configuration. See
Figure 8 and Figure 9 on page 23 .
NOTE :
In Battery (Invert) mode, the unit provides Dual Output
(DO). This means that the L1 and L2 output are in phase
and only single line loads (120V loads) connected to either
L1 or L2 output terminals get powered up. Split-phase
(240V) loads are not powered up.
In Grid (pass through) mode, the AC output reflects
whatever is at AC input. This means the following:
n
if input is split-phase then the output is split-phase.
n
if input is Dual Input (L1 and L2 in phase) then output is
Dual Output (L1 and L2 in phase).
n
if there is only single phase input at L1, then only L1
output is present.
AC Output Neutral Bonding
The neutral conductor of the Freedom EX 4000’s AC output
circuit (that is, AC Output Neutral) is automatically connected to
the safety ground during inverter operation. When AC utility
power is present this connection is not present, so that the
utility neutral (that is, AC Input Neutral) is only connected to
utility ground at your source. This conforms to the National
Electrical Code (NEC), which requires that separately derived
AC sources (such as inverters and generators) have their
neutral conductors tied to ground in the same way that the
neutral conductor from the utility is tied to ground in only one
place. Check the regulations for your specific application to
ensure that the installation will comply with the necessary
requirements. In other words, the AC Input Neutral ground
bonding and Output Neutral ground bonding must be isolated
from each other.
AC Grounding
As per UL458 SA29.5 (d), for all permanently connected marine
inverters: The Freedom EX 4000 should be connected to a
grounded, metal, permanent wiring system. Also, make sure
that an AC ground wire is connected to the AC ground terminal
on the unit. Do not just connect the line and neutral wires. The
AC ground conductor size must be equal to the AC supply
conductor size for both the AC input and AC output
connections.
All connections to the unit shall comply with all regulations,
directives, local codes and ordinances.