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Frequently Asked Question: |
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What is a UPS?
UPS stands for Uninterruptible Power Supply. An uninterruptible power supply (UPS), also known as an uninterruptible power source or a battery backup is a device which maintains a continuous supply of electric power to connected equipment by supplying power from a separate source when utility power is not available.
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What are the two types of UPS?
There are two distinct types of UPS:
- Off-line and
- Line-interactive (also called on-line)
Offline UPS:
Offline UPS systems are further classified into:
i. Inverters
ii. Line Interactive UPS and
iii. Built in Battery UPS.
Inverters
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How will UPS benefit me?
Every UPS will supply power to a load (such as a computer, telephone switch or medical equipment) when mains power fails. It may also condition the power and prevent spikes, brownouts, interference and other unwanted problems from reaching the supported equipment.
A UPS has internal batteries to guarantee that continuous power is provided to the equipment even if the power source stops providing power. Of course the UPS can only provide power for a while, typically a few minutes, but that is often enough to ride out power company glitches or short outages. Even if the outage is longer than the battery lifetime of the UPS, this provides the opportunity to execute an orderly shutdown of the equipment.
Advantages:
1. Computer jobs don't stop because the power fails.
2. Users not inconvenienced by computer shutting down.
3. Equipment does not incur the stress of another (hard) power cycle.
4. Data isn't lost because a machine shut down without doing a "sync" or equivalent to flush
cached or real time data.
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How does online UPS help me?
An on-line UPS continuously powers the protected load from its reserves (usually lead-acid batteries), while simultaneously replenishing the reserves from the AC power. The on-line type of UPS, in addition to providing protection against complete failure of the utility supply, provides protection against all common power problems, and for this reason it is also known as a power conditioner and a line conditioner.
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