
Pre-Configuration Planning
976-0043-01-01
2–7
Positive Ground
A positive ground is where the positive conductor from the battery bank is
bonded to earth ground. This arrangement is most often used in
telecommunications systems where an isolated ground is a requirement.
Negative Ground
A negative ground is where the negative conductor from the battery bank
is bonded to earth ground. This is the most common form of grounding
methods used for residential and commercial applications. The
Sine Wave
Plus
meets FCC part 15 Class B regulations in a negative grounded
system. See
“FCC Information to the User”
on
page viii
for additional
information.
The remainder of this manual will assume the negative ground
convention.
Inverter Grounding
The inverter/charger should be connected to a grounded, permanent
wiring system with the AC and DC grounds common bonded to each
other and should be bonded to the grounding system at only one point in
the system. See
“Bonding the Grounding System” on page 2–9
for
additional information.
The size for the grounding conductor is usually based on the size of the
circuit breaker in the DC system. The table below provides battery DC
disconnect sizes and minimum wire sizes of copper ground wires for
grounding systems.
It is recommended that the size and gauge of grounding wire should be
more than the NEC minimum requirements when installing power
sources such as inverter/chargers or generators.
Important:
The bonding of the DC negative (or positive in positive
ground applications) to ground can only be in one location in the DC
system. This DC ground bond must be made in a non-serviceable item in
the DC system. The Xantrex DC175 and DC250 can have the optional
DCBB installed to provide the DC system bond. Additionally, the
Xantrex PVGFP can also provide this bond and comply with NEC
requirements for roof mounted PV arrays installed on dwelling units
(homes).
WARNING: Shock Hazard
Attach the ground lead BEFORE attaching any AC or DC
power connections.
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Страница 127: ...4 Functional Test Chapter 4 Functional Test explains how to conduct a functional test of the inverter...
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Страница 141: ...Menu Map 976 0043 01 01 5 9 Figure 5 6 Basic Setup Menu Map Part 2...
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Страница 241: ...9 Troubleshooting Chapter 9 contains information and procedures for troubleshooting the Sine Wave Plus...
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