Inverters
An inverter is an electrical appliance that converts Direct Current (DC) to Alternating Current (AC) or the opposite AC to DC. They are used in grid-tie systems to convert the solar panels DC power into AC mains or another example would be from batteries on a boat to provide AC power for electrical equipment onboard. Mobile system or off-grid inverters are either 12V, 24 V or 48 volts whereas grid-tied inverters are 48 volts.
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Victron 12V MultiPlus 1200VA Inverter 50A Charger
European Designed Power
Victron Energy developed for professional duty, the Phoenix range of inverter chargers are suitable for the widest range of applications. The design criteria have been to produce a true sine wave inverter with optimized efficiency but without compromise in performance. The Charger features a microprocessor-controlled ‘adaptive’ battery management system that can be preset to suit different types of batteries. Employing hybrid HF technology, the result is a top-quality product with compact dimensions, light in weight and capable of supplying power, problem-free, to any load.
12 volt, 24 volt and 48 volt models are available in various inverting and charging rates. With a variety of displays, monitors, dongles and communication options.
Technical Information:
Voltage: 12V
Continuous output power at 25°C: 1200VA
Peak power: 2400W
Charge current house battery: 50A
Zero load power: 10W
Programmable relay: Yes
Mobile Inverter Considerations
Inverters can be broken into two installation categories which are either direct connected or integrated solution. Direct connect is when you attached the mains power plug directly into the inverters supplied AC socket. There is generally one of these on each inverter but some larger units have two sockets. The DC input should run through a fuse or circuit breaker and connect directly to the battery. The other installation variation is an integrated solution, it might include Auto AC switching which means when mains is turned on the DC battery power is no longer needed because the inverter has detected AC mains input and it bypasses the inverting function and supplies the mains directly to the AC output of the inverter.
The other variation with inverters which is also just as important is the sine wave generated. Mains power is pure sine so the best inverters are pure sine inverters. A cheaper alternative is modified sine wave but these units aren't good for many types of AC devices that could easily be attached to the inverters power sockets. Because the installer can't control what devices are connected it is safest to use only pure sine inverters. It's also better for any AC equipment attached.
Installation considerations are with integrated all your AC mains sockets can be used by either battery power or mains power. With direct connect you might need to unplug a device from the inverter and reconnect to a circuit that can only be used when connected to mains power while connected to shore or plinth power.