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Line Interactive UPS is a topology offering a middle ground between offline (stand by) and double-conversion on-line uninterruptible power supply. They are equipped with AVR (Automatic Voltage Regulation) which is used to maintain the output voltage within an acceptable range. This is achieved by switching the taps on the transformer, based on the value of the incoming voltage to either buck or boost it. Technology is also known as VI (Voltage Independent), regulates voltage but not frequency.
A line-interactive UPS is ideal for small businesses, home, small sensitive IT loads, routers and gaming equipment. Line-interactive uninterruptible power supplies are the cost-effective solution for loads between 500VA – 3000VA but, when the AC power from the utility isn’t great, double conversion-online topology can be the better choice. The table below provides information about the power problems the different topologies protect against.
Power Problem | Online (VFI) | Line Interactive (VI) | Offline (VFD) |
---|---|---|---|
Sags/Brownouts | Yes | Yes | – |
Surges | Yes | Yes | – |
Spikes/Transients | Yes | Yes | Yes |
Electrical Noise | Yes | Yes | Yes |
Harmonics | Yes | – | – |
Frequency Variation | Yes | – | – |
Mains Failure | Yes | Yes | Yes |
Please contact us if you are deciding what is the best topology of Uninterruptible Power Supply for your specific application , we would be happy to help stablish the ideal power protection and backup for the unique requirements of the loads and environment.
Glamor Series – Line Interactive AC UPS 3 x Outlets 450VA-2000VA
$218.00 – $278.00TC-2500 Industrial AC UPS 2500VA/2500W
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