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LEADING UPS SOLUTIONS

When downtime costs you in profits and reputation you simply cannot afford not to have a contingency plan in place

What is a UPS?

An Uninterruptible Power Supply is a device that sits between a power supply (e.g. a wall outlet) and a device (e.g. a computer) to prevent undesired features of the power source (outages, sags, surges, bad harmonics, etc.) from the supply from adversely affecting the performance of the device.

How does an Uninterruptible Power Supply (UPS) work?

An uninterruptible power supply (UPS), also known as a battery backup, provides backup power when your regular power source fails or voltage drops to an unacceptable level. A UPS allows for the safe, orderly shutdown of a computer and connected equipment. The size and design of a UPS determine how long it will supply power.

What does a UPS protect against?

  • Power Surges – A sudden increase in power flowing through to your device is typically caused by something like a lightning strike. This leads to a sudden increase in power followed by a drop which causes damage to equipment.
  • Overvoltage – Overvoltage is when the power being supplied is greater than the power required and can cause overheating and damage. Unlike with a power surge, this power is over a sustained period and causes different problems.
  • Undervoltage – Also known as a brown-out, Undervoltage is what occurs when the power supplied is less than is required. This could be from a sudden demand for power in other areas or a problem with the grid, the lack of flow leads to damage and active data loss.
  • Power Outage – A complete disruption of power, either short or long term. There can be a number of reasons that you might be subject to a power outage but the results can be severe with data loss and system downtime being the major contributors.

By providing a constant flow of power, a UPS allows you to handle these problems as they arise. UPS systems moderate the flow of power and jump in with charged batteries in the event of total disruption.

Different types of UPS designs

There are three general categories of modern UPS systems are on-line, line interactive or standby/offline.

A standby/offline UPS system the load is powered directly by the input power and the backup power circuitry is only invoked when the utility power fails. Most UPS below 1 kVA are of the line-interactive or standby variety which are usually less expensive.

A line interactive UPS maintains the inverter in line and redirects the battery’s DC current path from the normal charging mode to supplying current when power is lost.

An on-line UPS uses a “double conversion” method of accepting AC input, rectifying to DC for passing through the rechargeable battery (or battery strings), then inverting back to 120V/240V AC for powering the protected equipment.

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