An inverter like the Lalela 3000W hybrid inverter can provide uninterrupted power to your home. This is how it works.
A term that often arises in loadshedding discussions is ‘inverter’, but most people don’t really know what an inverter is and how it works in conjunction with batteries, solar panels and the mains supply. Let’s unpack this so that we all know what we’re talking about.
The three components of backup power
To understand how inverters function, we need to break down the backup power system into three distinct parts.
First, we must consider how power is harvested. This can be achieved through solar or wind power, a generator or the mains supply. Second, we need to address the storage of that power, which is accomplished using batteries such as lead acid, gel or lithium-ion. Among these, lithium-ion batteries are by far superior: they offer longer lifespans and maximise harvested power. Finally, we need a way to convert or ‘invert’ the stored energy into usable power, and this is where the inverter comes into play. Appliances in South Africa require 240V AC electricity, but the energy is stored in batteries in 12V DC form – an inverter bridges the gap by converting the stored DC power into usable AC power.
Not all inverters are equal
When it comes to inverters, there are several variables to consider. The size of the inverter determines the maximum number of watts it can power. Additionally, the number of batteries determines the storage capacity, while the number of solar panels (if you’re using them) affects the harvesting speed and battery charging rate. Therefore, a larger inverter, more batteries and more panels result in increased power capacity, storage and charging efficiency.
The Lalela 3000W Pure Sine Wave Inverter
Let’s take a closer look at the Lalela 3000 W Pure Sine Wave Inverter, a versatile multi-function inverter charger. This inverter can charge batteries using solar, mains supply or a combination of the two. It offers reliable power supply with a constant maximum load of 3000 W at 230 V and a peak surge power of 6000 W for 10 seconds. The pure sine wave output ensures compatibility with sensitive electronics, including newer TVs, CFL lights and refrigerators with sensitive components.
Ease of use and safety
The Lalela inverter is pre-programmed with default settings that simplify the installation process. However, users have the option to adjust certain settings, like choosing to prioritise if the battery is charged via solar or mains supply. The inverter also features built-in protection mechanisms against overload, overheating and short circuits. It also has a smart battery charger that optimises battery performance.
Installation and considerations
It is important to note that this inverter is not a plug-and-play device; it requires professional installation by a registered electrician who will issue a Certificate of Compliance. Adequate ventilation is necessary to dissipate heat generated during operation, so the inverter cannot be installed in an enclosed space like a cupboard.
How it works
In a typical setup, the inverter is connected to a 24 V battery system. When the mains power is available, the inverter converts AC power to DC power to charge the battery. During a power outage, the process reverses: DC power is inverted to AC power, seamlessly supplying the house through the DB board and ensuring an uninterrupted power supply.
Usage and limitations
While the inverter can power various appliances, it is not suitable for high-power, non-essential devices like swimming pools, geysers, ovens or kettles. Ask your electrician before deciding which appliances to connect to the system.
Battery life and runtime
Battery life and runtime depend on the amount of power consumed. Using an 80 Ah battery running at the maximum 3000 W, the battery would last approximately 28 minutes. However, reducing the load to 900 watts extends the runtime to about 2 hours. By doubling the batteries, storage capacity and runtime can be doubled effectively.
Last word
Inverters are a great way to survive the bane of loadshedding, and the Lalela 3000 W pure sine wave inverter is a feature-packed option. When properly installed and utilised, life will carry on with minimal disturbance, be it at home or the office.
A wide range of Lalela products as well as other loadshedding solutions are stocked by Builders, both online and in-store at builders.co.za.
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