“What does 1500VA mean, and how do you calculate the load and back-up time that a 1500VA unit can provide?”
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1500VA: VA = volt-ampere : VA in this case is an indicator of how much potential current the DC (Direct Current) batteries in the UPS are rated for. The load. Also the watt rating indicates the total AC (Alternating Current) amout that the UPS can convert and supply. The total drain of the devices added together. So how big is the gas tank? And how much gas can get out of the tank? Technically you could have 2 or 3 engines hooked up to the same gas tank, right? Just like you can have several devices plugged into the UPS drawing power during a power outage. So 1VA = 1Watt of DC power. The time the batteries run out of juice depends on how many things and how much power they are all pulling. You have to add up all the watts each device requires to function and don't exceed the watt rating of the UPS or your battery life will be shortened. The UPS also acts as a power conditioner keeping spikes and surges from blowing out delicate electronic circuits. I have 3 of these 1500va UPS devices and try to distribute the devices to not use over half of the watt ratings on each UPS. This has the effect of extending the life span of the batteries and you get more time before they go night night in the event of a power outage. The panel pn the ftont of these UPS does all the calculations for you.
Sorry, there was a problem. Please try again later.1 watt = 1 volt x 1 ampere Watt is a unit of WORK just like Horsepower is a unit of work Volt is a unit of force Ampere is 1 Coulomb of electrons (about 6 x 10 to the 18th power) flowing per second Basically 1500VA is the same as 1500 Watts If the power load is 1500 Watts or less, the UPS will provide enough power to maintain the equipment during power sags and also allows for an orderly shutdown over a 3-5 minute period.
Sorry, there was a problem. Please try again later.Hello Max, 1500VA is the maximum amount of electricity that can be drawn from this unit. The amount of backup time is dependent on the amount of electricity that your equipment consumes. Here is a link to the product page showing the runtime graph. https://www.cyberpowersystems.com/product/ups/lx1500gu/ Thank you for your question.
Sorry, there was a problem. Please try again later.I selected this unit because it matched my previous unit specifications. So far it's performing as expected.
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