Product specifications

1312
1
2
3
4
5
DC connection. DC connection. AC connection.
Basic equipment required for a grid connected system:
1. Solar modules (not provided by Mastervolt).
2. Mastervolt solar inverter with integrated kWh meter.
3. Mastervolt data logger for monitoring (optional).
4. A kWh meter for the registration of generated and used power (not provided by Mastervolt).
5. Energy consumers in the house (not provided by Mastervolt).
The most effective and popular PV application is the connection
of solar panels to the electricity network. This type of grid
connected system functions as a miniature power station.
Whenever the solar power production is higher than the
consumption, the extra electricity is fed back into the public grid.
Electricity companies pay handsomely for this kWh generation
in an increasing number of countries, such as Japan, Germany,
Italy, Spain, Belgium, the United States and an increasing number
of countries in the Asia Pacific region.
The Mastervolt inverter is the dynamic heart of any grid
connected PV system. The power conversion system takes place
with minimal power loss and maximum reliability, while extensive
system monitoring offers accurate actual and historical data.
The products available for these applications are described on
the following pages. The diagram below shows all the ingredients
of a grid connected power system.
Inve r t e rs for g r i d conn e c t ion
The he a r t of any P V s y stem
Mastervolt solar inverters convert direct current generated by
the photovoltaic strings into alternating current and feed it into
the public mains. At the same time they are used for system
monitoring. These extremely compact, easy-to-mount and
lightweight devices offer the highest annual efficiency rates, high
reliability and extensive monitoring functions.
The various models cover a performance range of 100 to 7200
Wp. PV systems with low to very high outputs can be configured
flexibly : one input (Soladin 600 and QS2000), two inputs
(QS3500 and XS6500), three inputs (XL10 and XL15) or even
four inputs (QS6400) with independent MPP trackers are
available to which two module strings of the same design can be
connected. In addition, two-phase feeding into the mains above
5 kW is possible with the QS6400.
On the output side the devices can be connected in parallel in
any desired combination and number. The standard models
convert string currents from 7.5 A up to 30 A and string voltages
from 100 to 600 V DC per input with MPP control. The models
QS3500 and QS6400 Max-I, especially designed for high-current
modules, convert 10 A and 75 to 260 V DC.
Indu s t ry lead i n g bene f i t s
Mounted in robust aluminium cabinets and designed for use in
closed rooms, our inverters convert power with the latest high-
frequency technology.
There are numerous advantages:
• Exceptional efficiency offers high yield scores (even in the par-
tial load range) and minimal standby and night consumption.
• The complete electronics for power conversion fits on a single
or double circuit board, hence the compact design.
• The cooling requirement is low; cooling is effected by
temperature-controlled and maintenance-free ventilators.
• The output voltage only slightly deviates from the pure sine
wave shape of the grid (THD <3% at nominal load).
• The galvanic isolation in the high frequency transformer
between DC input and AC output ensures optimised system
safety.
A high capacity microprocessor precisely regulates all inverter
functions, measures all output data and monitors the correct
functioning of the inverter, the connected photovoltaic strings
and the power grid. The respective data can be shown on an
optional display or via the integrated communication interfaces.
Mastervolt solar inverters comply with international standards.
Country-specific models are supplied with the respective
nationally approved anti-islanding safety equipment in case of
power failure: in most countries the QS anti-islanding will
comply. For Germany and Austria we deliver the QS solar
inverters as ENS models in full compliance with VDE 0126-1-1.
In addition, various safety circuits prevent damages or failures
caused by incorrect operating conditions.
Sunmaster XS6500 Sunmaster QS3500 Sunmaster QS2000