1000VA / 600W Pure Sinewave UPS
Line-Interactive Topology
AVR and GreenPower UPS
Multi-function LCD display; $350,000 Connected Equipment Guarantee - 3 Year Limited Warranty
This review is from: CyberPower CP1000PFCLCD UPS 1000VA 600W PFC Compatible Pure Sine WaveI bought this about a month ago to replace a fading APC Back-UPS ES 725. So far, performance has been encouraging. My first impression upon opening the cleverly double-boxed packaging was that the picture size was deceiving. This CyberPower looks large. It's not. It's dwarfed by my standard mid-ATX towers. Eyeballed relative to one, it's about half the width, half the height, and two-thirds the depth. Positively petite for a tower UPS, and roughly the size of the APC it replaced were that one upturned. Extras include a short coaxial cable and an RJ-11 phone wire. Build quality seems quite good, and the appearance in person is a fetching combination of gloss and matte black. Once booted, the UPS is completely silent with mains power running. It buzzes quietly when on battery power. There is no internal fan. That said, let's cover what differentiates this UPS from others. It's a 1000VA, 600W, line-interactive sine wave model. Line-interactive - In the consumer world, there are three major types of UPS units: standby, line-interactive, and double conversion ("online"). Standby runs wall power straight to the device with minimal filtering unless it detects a major voltage change. Then it switches to battery. Line-interactive is the same, except with a filtering transformer between the wall and the device to handle most voltage variations. In an area with dirty power, line-interactive units won't cycle to battery power as often. With clean power, there's no practical difference between the two. Double-conversion means the battery powers the device and wall power only charges the battery. The isolation is helpful for sensitive things, but less efficient because the wall power is perpetually converted from AC to DC and back to AC.Some areas will have greater voltage fluctuation than others. If you're in California and surrounded by industrial machinery, line-interactive or double-conversion is where you want to be. Sine wave - When a UPS with this feature is running on battery power, the cycling frequency of the AC it produces will be a pure sine wave instead of a blocky approximation. Sensitive devices prefer sine wave power. Computers don't care because any nastiness is filtered by the power supply. Devices with a more direct current path may care, as will electric motors and instruments that derive their timing from the power frequency, but as a practical matter, any UPS targeted at computer equipment will produce AC of sufficient quality for that and consumer electronics. This UPS has a capacity of 600W and 1000VA. You can ignore the second number if your hardware is recent or expensive. In the grand old days when the real power use of a computer (W) was 40% less than the apparent load (VA), it made sense to specify more VA capacity than W. Now, though, with power factor correction (an attempt make the ratio of W:VA closer to 1:1) standard for years, the actual load is likely to be 90% or more of the apparent load. A 200W computer will probably use 200-250VA of capacity. You're therefore likely to reach the watt limit well before the one for VA.In my case, I've got a 12-drive file server, tower PC, router, switch, 24" LCD, and 32" LCD plugged in. This is an idle load of about 370W and 390VA. Projected runtime is 5 minutes. Extrapolating, with a full 600W draw, you'd see 2-3 minutes. With a more typical load of 175W from a single computer and a monitor, 10-12 minutes could be expected. CyberPower predicts a slightly optimistic 3 minutes for full load and 9 minutes for half. Because the included software can be set to shut the system down when battery power dwindles, any duration over a few minutes is probably adequate. So how does this unit perform? It's hard to say. It feels satisfyingly heavy even without the battery, but as I haven't torn it apart, it could well be filled with peanut brittle. There haven't been any lightning strikes, so the 1,030 joule surge rating (three times APC's typical rating) remains untested. Actually, the only stressor has been my laser printer. It's plugged into the same wall socket and when it heats up, the lights flicker and the UPS trips.The switchover time from mains to battery isn't quite as fast with this Cyberpower. I know that because my APC caused a slight flicker on my LCD TV. This one gives a severe flicker that all but turns the TV off, though the other screen and the rest of computer equipment are unaffected. It's also intolerant of overloads. Because a laser printer can easily pull 1200W or more, you're not supposed to plug one into any UPS outlet, battery-backup or not. I did by accident when I was moving cables around. The resulting shutdown and angry beeping was unsurprising. No docked stars for any of this, though I might have if the TV had actually turned off. Other niggles have been minor. My UPS took an usually long time to get past the initial startup. I spent about ten minutes pressing and holding buttons in accordance with the manual before it finally turned on. Since then, no similar issues, and I was alerted in a comment that it's possible to force the display to stay on by pressing and holding the display button until you hear a single beep. All considered, I'd give this CyberPower a preliminary five stars. The APC lasted four years on the battery and five until the USB monitoring port went out, so that's the benchmark I hope it'll beat....
This review is from: CyberPower CP1000PFCLCD UPS 1000VA 600W PFC Compatible Pure Sine WaveThis is CyberPower's updated 1000VA UPS. It has been designed with a shaped ramp output to more approximate what you receive from your power company. They also state this UPS has been designed to work better with to...
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