![]() and APC’s UPS Selector > Home Office > Configure by Device > PC/Workstation > Desktop Computer estimated a power draw of 100W. For instance, TrippLite listed a large number of desktop PCs, with specific model numbers, to identify the wattage required, and likewise for monitors and a few other categories of devices Kohler’s kVA Load Calculator asked “Do you know your load and load characteristics?” No > “Is it IT or Non IT?” IT > Typical workstation volt-amps (VA) = 200, etc. If the user’s manual didn’t specify a power usage figure, several of these websites could help. The calculators that asked what devices I was connecting would probably be most convenient for those users who had a stock system - a computer bought straight off the rack and not significantly modified. But maybe that solution won’t work in every situation. I will describe how I worked through that process - but I will also mention that, for me, the more accurate solution was to buy a Kill-A-Watt device (below), and let that tell me how much power I was really using. Some required me to state a number of watts some asked what kind of devices I would be connecting some went both ways. To estimate my power consumption, I ran a search and looked at several different UPC power calculators. ![]() So the question was, how much UPS power did I need, to keep my desktop running for, say, seven minutes (i.e., five to wait and see two to shut down)? I might eventually decide to allow a minute or two above or below, but that seemed like a reasonable starting target. I decided that a five-minute wait-and-see period should be long enough to see whether it seemed likely that the power outage would continue for a while. A Spiceworks discussion offered a variety of thoughts on how long I should wait before shutdown. I wouldn’t want to go through the hassle of shutting down and starting right back up again if that wasn’t necessary. The budget solution was to choose a UPS just big enough to let me decide whether this seemed to be more than a momentary outage. If I wanted a UPS that would keep the desktop running forever, I would have to pay for it. Of course, I could tell Windows to go ahead with a sooner hibernation or shutdown, if I saw no reason to keep using the UPS battery’s reserves. How-To Geek (Burgess, 2019) illustrated that PowerChute would let the user set the number of minutes that the computer would continue to run before automatic shutdown or hibernation commenced. (See SuperUser for information on Linux.) For example, the User Guide for APC PowerChute 3.1 explained that, after a specified number of minutes, PowerChute would initiate hibernation or shutdown in response to a prolonged power problem. It seemed that most UPS vendors included software that could send a hibernation or shutdown signal to Windows when the power went down. Reactions in General, and to the CyberPower Unit Specifically As discussed in another post, this was part of a larger inquiry into longer-lasting alternate sources of computing power. This post describes how I decided which UPS to buy, some key points about its software, and how it worked out in testing. But recent, recurrent power outages, crashing my desktop computer system and taking my work down the tubes, had convinced me that it was time to get another. Its robust construction and premium materials contribute to its durability and long-term performance.My last uninterruptible power supply (UPS) was dead and buried. Overall, this UPS provides reliable power protection and connectivity solutions for a variety of devices. The CP1500PFCLCD does not feature an Emergency Power Off (EPO) function, which may be a consideration for some users in specific situations. ![]() Its tower form factor ensures easy setup and integration into various environments. ![]() Additionally, it includes one serial port, one modem (RJ-11) port, and one Ethernet LAN (RJ-45) port, enabling convenient communication and network connectivity.įor enhanced functionality, the CP1500PFCLCD offers two USB 2.0 ports, allowing for the connection of compatible devices. The UPS is equipped with a 1.52-meter cable, allowing for flexible placement and connection to power sources. It features 10 AC outlets of the NEMA 5–15R type, providing ample power connectivity options. With a surge energy rating of 1030 J, this UPS is designed to protect connected devices from power surges and fluctuations, ensuring their safe operation. It operates at a nominal output voltage of 120 V and a frequency of 60 Hz. The CyberPower CP1500PFCLCD is an uninterruptible power supply (UPS) with a power capacity of 1.5 kVA and an output power of 900 W. ![]()
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