Victron energy MultiPlus 12/3000/120 Anleitung Seite 6

2. DESCRIPTION
2.1 In general
The basis of the MultiPlus is an extremely pow erful sine inverter, battery charger and automatic sw itch in a compact casing.
The MultiPlus features the following additional, often unique characteristics:
Autom atic and uninterruptible switching
In the event of a supply failure or w hen the generating set is sw itched off, the MultiPlus w ill sw itch over to inverter operation and take
over the supply of the connected devices. This is done so quickly that operation of computers and other electronic devices is not
disturbed (Uninterruptible Pow er Supply or UPS functionality). This makes the MultiPlus highly suitable as an emergency pow er system
in industrial and telecommunication applications. The maximum alternating current that can be sw itched is 16A or 50A, depending on
model.
Auxiliary AC output
Besides the usual uninterruptable output, an auxiliary output is available that disconnects its load in the event of battery operation.
Example: an electric boiler that is allow ed to operate only if the genset is running or shore pow er is available.
Virtually unlimited power thanks to parallel operation
Up to 6 Multis can operate in parallel. Six units 24/3000/70, for example, w ill provide 15kW / 18kVA output pow er and 420 Amps
charging capacity.
Three phase capability
Three units can be configured for three-phase output. But that's not all: up to 6 sets of three units can be parallel connected to provide
45kW / 54kVA inverter pow er and more than 1000A charging capacity.
Pow erControl – m aximum use of limited shore current
The MultiPlus can supply a huge charging current. This implies heavy loading of the shore connection or generator set. Theref ore a
maximum current can be set. The MultiPlus then takes other pow er users into account, and only uses 'surplus' current for charging
purposes.
Pow erAssist – Extended use of your generator and shore current: the MultiPlus "co-supply" feature
This feature takes the principle of Pow erControl to a further dimension allow ing the MultiPlus to supplement the capacity of the
alternative source. Where peak power is so often requi r ed only for a limited period, the MultiPlus w ill make sure that insuffi c ient shore or
generator power is immediately compensated for by power from the battery. When the load reduces, the spare power is used to
recharge the battery.
This unique feature offers a definitive solution for the 'shore current problem':high power electric tools, dish w ashers,
w ashing machines, electric cooking etc. can all run on 16A shore current, or even less. In addition, a smaller generator can be
installed.
Solar energy
The MultiPlus is extremely suitable for solar energy applications. It can be used in autonomous systems as w ell as grid connected
systems.
Autonomous operation w hen the grid fails
Houses or buildings w ith solar panels or a combined micro-scale heating and pow er plant or other sustainable energy sources have a
potential autonomous energy supply w hich can be used for powering essential equipment (central heating pumps, refrigerators, deep
freeze units, Internet connections, etc.) during a pow er failure. A problem is how ever that grid connected sustainable energy sources
drop out as soon as the grid fails. With a MultiPlus and batteries, this problem can be solved in a simple manner: the MultiPlus can
replace the grid during a power failure. When the sustainable energy sources produce more pow er than needed, the MultiPlus w ill
use the surplus to charge the batteries; in the event of a shortfall, the MultiPlus w ill supply additional pow er from the battery.
Programmable relay
The MultiPlus is equipped w ith a programmable relay that by default is set as an alarm relay. The relay can be programmed for all kinds
of other applications how ever, for example as a starter relay for a generator.
Programmable with DIP sw itches, VE.Net panel or personal computer
The MultiPlus is supplied ready for use. Three features are available for changing certain settings if desired:
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The most important settings (including parallel operation of up to three devices and 3-phase operation) can be changed in a very
simple manner, using DIP sw itches.
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All settings, w ith exception of the multi-functional relay, can be changed w ith a VE.Net panel.
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All settings can be changed w ith a PC and free of charge software, downloadable from our w ebsite www.victronenergy.com
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