Are you tired of waiting for the electricity to return every time the local transformer blows up or the power is shut down for maintenance? Buying an inverter can go a long way in helping you overcome the hardship you go through every time there is a power failure. Whether you need an inverter for your home or your office, you will get to choose from many different brands and models as per your budget. So, find out all about what an inverter is, what a battery is, and how you can pick the right ones for your power requirement.
It is a backup power generating device that converts low-voltage direct current into standard household alternating current power, to provide your home with an uninterrupted electric supply.
Having cleared that up, let’s go over how to buy an inverter that is tailor-made for your needs. Note that buying what your neighbor brought can lead to a disaster, as the needs of every household or office are different.
Your power requirement is the total electricity needed to operate all the appliances that you want running during a power failure. If you have multiple units of the same appliance (e.g. 4 fans), then you need to multiply the power usage of that appliance by the number of units that you have.
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Now, imagine that you have four fans that each consumes 80 Watt of power. Further, you have three tube lights, three CFL, two LED bulbs, and also a television, which use 40, 20, 7, and 120 Watts, respectively.
Your electricity requirement would be:
4*80 + 3*40 + 3*20 + 2*7 + 120=634 watts
Ensure that your inverter batteries’ capacity matches the capacity of your inverter. Note that a battery’s capacity is the electricity it can store, and the inverter capacity is the amount of electricity it can serve at a time.
The battery capacity, which is calculated in Ampere hours, can be found based on the backup time needed for all your appliances. There is a simple calculation that will help you pick the perfect battery for your needs.
Battery capacity= Power needed in Watts * Backup time (In hours) / Battery Voltage (Taken as 12V)
Imagine you need to run 3 fans, 3 tube lights, 1 CFL, and a television for 3 hours straight, during a power outage. Based on the formula, you would need a 130 Ah battery.
The inverter capacity, which is measured in Volt Ampere, is directly proportional to the total load that you are looking to support with it. The accurate value of the inverter capacity can be found by dividing the total load to be supported by the power factor, which is a measure of lost efficiency in the conversion of DC to AC. You can find the value of inverter capacity mentioned in the product description when you buy an inverter.
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Depending on what the AC looks like, you have two options, namely Sine wave inverter and Square wave inverter. It is recommended to purchase a Sine wave inverter despite its slightly higher cost, as it is safer and lasts longer. You can also find some modified sine wave inverters in the market that are cheaper than the regular ones.
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It is worth mentioning that a UPS is better suited for PCs because an inverter takes one microsecond to fall over to the backup power, and this delay in switching may harm the system. Hence, it is prudent to buy an inverter for using appliances such as fans, lights, TVs, etc.
One of the crucial things to do before picking an inverter is to see if your home wiring is compatible with the inverter you are buying. It is best to exclude large appliances, such as refrigerators and air conditioners form the wiring, as they require a lot of battery power. Consulting with your technician and determining if your home is compatible with the inverter you are planning to buy is always a good idea.
An inverter is a great investment to keep your whole family comfortable during power outages. So, following this inverter buying guide will certainly help you buy one that satisfies all your power requirements.
It is summertime and the mercury levels are already rising. The scorching sun soaring over our heads is anything but pleasant. To add to our miseries, frequent power cuts only make us sweat more. The best way out of this situation would be to buy the. Buying the right inverter is really important. Moreover, with alternatives such as the home UPS available in the market, it is important to understand the difference between the two to avoid any confusion.
It is best that you gain some knowledge about what to look for in an inverter before buying one. Read on to know some considerations to make before buying an inverter and tips to buy UPS for home:-
Before setting out to buy an inverter for your home, it is always best to know beforehand the rough estimate of your total power consumption. Take any average summer day and make a note of what all you need to power. An inverter is very different from a generator in the sense that it cannot run all the electrical appliances of your house when the electricity goes out; you have to select the few indispensable appliances you want to stay running all through the day, no matter what!
Determining the combined load that would be run using the inverter is critical in purchasing an inverter of adequate size. The watts of power drawn by every single appliance you will connect to your inverter can help decide the VA rating of your inverter. An inverter can back heavy electricity drawing appliances such as refrigerators as well. Saying that, powering such devices has its downside—the inverter battery is going to last for fewer hours than it would if devices such as heavy refrigerators were not powered using it.
A home UPS is the same as an inverter, as far as the functionality aspect is concerned—both the devices are used to convert direct current to alternating current, which is used as a backup option to generate power. However, there is a main distinction between an inverter and a UPS. The difference is that there is no time lag between the devices being powered off in the event of a power cut.
However, with devices powered by an inverter, there is a very short period of total blackout when the electricity goes out. Most computers and laptops in homes and offices are connected by UPSs instead of inverters for this exact reason. This lets the users save their critical data before powering their machines off.
An inverter can run appliances such as fridges and air conditioners. However, the motors of the aforementioned appliances are equipped with compressors. They require vast amounts of currents, especially to start up. Thus to cater to such heavy-current-drawing appliances, it is best that you buy inverters that have high VA values and sizes or inverters specially designed to cater to refrigerators and air conditioners.
VA ratings and watt ratings are not to be taken interchangeably. House appliances such as lights, bulbs, refrigerators, air conditioners et al are the ones that consume power and hence are rated in Watts. In contrast, power generating equipment such as inverters, uninterrupted power supplies, generators et al are rated in VA.
VA is apparent power and is the product of the voltage and the current supplied by the equipment. The ideal case scenario calls for both, the VA value and the watt value to be the same. However, in actual circuits, it is not practically possible for them to be the same. Do not be misled by manufacturers into believing that both are the same.
As with any product, with a UPS and inverter, you must make sure that the products are guarded under a stipulated warranty period by the manufacturer. Inverters require close to no maintenance at all until and unless they stop functioning altogether. An inverter is not 100% efficient because it uses a part of its energy to power its circuitry and run a cooling fan.
Now that you know everything there is to buy the perfect inverter, make sure you buy only from reputed manufacturers. Luminous, Microtek, Su-kam, Galaxy and Exide are among the most renowned inverters and home UPSs manufacturers.
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