Dimensioning The Inverter; Dimensioning The Generator; Dimensioning The Renewable Energy Sources; Wiring Diagrams - Xtender XTS 900-12 User Manual

4.3.2 Dimensioning the inverter

The inverter is dimensioned in such a way that the rated power output covers the power of all the
consumers, which will be used at the same time. A dimensioning margin of 20 to 30% is recommended
to guarantee that the Xtender will work well in an ambient temperature of more than 25 °C.

4.3.3 Dimensioning the generator

The power output of the generator must be the same or more than the average daily power.
Optimally, it should be two or three times this power. Thanks to the input limit function (see sect. 7.2.2
- p. 27) it is not necessary to over-dimension the generator. Indeed, the loads that are temporarily
higher than the power of the generator will be supplied by the inverter.
Ideally, the generator should not have a power output by phase that is less than half of the power of
the Xtender(s) present at this phase.
The power available downstream of the inverter when the generator is working is the same
as the sum of the two powers if the Smart Boost function is activated. The sum of the currents
is limited to a maximum of 57A (80A for the models XTH 8000-48, XTH 6000-48-01 and XTH
5000-24-01). This sum is limited to 20A in XTS model.

4.3.4 Dimensioning the renewable energy sources

In a hybrid system, the alternative energy sources such as the solar generator, wind power and small
hydropower should, in principle, be dimensioned in such a way as to be able to cover the average
daily consumption.
4.4 W
IRING DIAGRAMS
Several schematics and wiring comments as in the
diagram to the right are proposed in Annex I of this
manual.
The diagram to the right gives an example of a hybrid
system for a remote site with some renewable energy
sources and single-phase generator.
These diagrams are indicative, and in any case, the
wiring is subsidiary to compliance with local standards
and practices, under the responsibility of the installer.
Comments regarding the letters / and / or numbers
cited in the diagram aside and of those in the
appendix are given in sect. 16 to 19.
The elements of these diagrams are referenced by a
capital letter when related to the alternating current
(AC) elements.
The elements referenced by a lowercase letter relate
to the direct current elements (DC part of the
diagram.)
4.5 C
ONNECTING THE BATTERY
The terminals of DC input / output of the apparatus
(11) - (12) p. 9 are intended to be exclusively
connected to a battery, usually of lead acid batteries with gelled or liquid electrolyte
The use of the Xtender connected to any other type of DC source without battery (buffer) is
strictly prohibited and may cause significant damage to the device and / or the source.
The use of other battery types like Ni-Cd, Li-Ion or other is possible subject to a proper setting of load
profile in accordance with the specifications of the manufacturer of the battery and under the
responsibility of the installer.
User manual V4.6.0
Studer Innotec SA
Xtender
19