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ABOUT YOUR PV SYSTEM
MODEL TYPE
Your Solahart PV System is designed for the polycrystalline photovoltaic modules to be roof and/or stand
mounted with the inverter installed in a serviceable position and connected to the electrical distribution grid
(often referred to as ‘the grid’) as per AS 4777.1. These instructions together with the installation instructions
supplied with the inverter give limitations on positioning of the inverter.
This Owner’s Guide and Installation Instructions applies to the following PV modules:
HSL60P6-PB-1-250 (250 W module)
REC255PE (255 W module)
Note:
Unless approved otherwise by Solahart, only modules of the same make and model may be used in
Solahart PV systems.
SYSTEM OPERATION
The Solahart PV System is comprised of two main components; a string or array of photovoltaic modules
and an inverter.
The photovoltaic (PV) modules transform solar radiation into electrical energy in the form of direct current
(DC). In order to utilise this energy and feed it back into the grid, the direct current is transformed into
alternating current (AC) by the inverter. This conversion is also known as DC to AC inversion.
The alternating current generated by the inverter is fed into the main switchboard, which in turn is connected
to the grid.
Note:
For safety reasons, the inverter will only operate when the mains electrical supply is available from the
grid. Your Solahart PV System cannot provide a backup electricity supply to your home appliances if the
mains supply is interrupted.
If the energy generated by the PV System is not sufficient to meet domestic demands, the energy necessary
to ensure the standard operation of the connected devices is drawn from the grid.
If the energy generated exceeds that required by property demands, your electrical network operator may
allow the difference to be directly injected into the grid and become available to other users. Energy injected
into the grid can be measured by electricity network operators as either gross (everything generated) or net
(excess generated). Injected energy may or may not be purchased by the local electrical network operator
according to national and local standards, and regulations.
SYSTEM OVERVIEW
•
A photovoltaic module is composed of many photovoltaic cells assembled on the same frame.
•
A
string
is composed of a certain number of
modules
electrically connected in series.
•
An
array
is composed of one or more
strings
connected in parallel.
•
The
inverter
converts direct current produced by the
array
into alternating current.
•
The
PV Array DC Isolators
provide a means for isolating the
array
.
•
The
Inverter AC Isolator
provides overcurrent protection of the
inverter
and a method of isolating the PV
System from the electrical distribution grid.
Warning:
For the inverter to be effectively electrically isolated, both the PV Array DC Isolator(s) and the
Inverter AC Isolator(s) must be in the OFF position.
