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Uninterruptible Power Supplies
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Why should I worry about power problems?
Because even the smallest disruption in electrical power can cause damage to a computer, a network, or other sensitive electronic equipment such as cash registers and process control equipment. At the very least, power problems cause data loss and unexpected shutdowns. At the worst, "bad power" can damage or destroy equipment.
What are the symptoms of "bad power"?
Commonly, bad power causes a computer's monitor and indicator lights to waver or flicker, unexplained errors in data transmission, sudden loss of Internet access, a system lockup, aborted modem transfers, and hard drive crashes.
What are the consequences of power problems?
Even minor power problems can cost you money. Anytime a power interruption delays your work in progress, that's your valuable time you've lost, and lost time means lost money. More serious and expensive is the fact that power problems can not only corrupt expensive data files, but can permanently damage computers, networks, and precision electronics.
How can these problems be avoided?
By always connecting your sensitive electronic equipment to power conditioners, surge protectors, or, for the best protection, an uninterruptible power system (UPS). Problems such as blackouts cannot be eliminated, but the damage they cause can be prevented with a UPS, which maintains a steady flow of power until the system can be safely, automatically shut down.
Types of Power Problems
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Transients (Spikes)
Results from lightning strikes or when electrical loads are switched off. Can destroy electronic circuitry and corrupt stored data.
Solution: UL 1449-listed surge suppresser, isolation transformer, or a UPS.
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Surges & Overvoltages
Commonly caused by large electrical load changes and from utility power line switching. Can seriously damage electrical equipment.
Solution: Ferroresonant-based power line conditioner and UPS with an overvoltage compensation feature.
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Sags & Brownouts
Commonly occurs when motors are started up or by faults on the utility power system. Can cause malfunctions or sudden shutdowns in computer or process control equipment.
Solution: Power line conditioner and a UPS.
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Outages (Blackouts)
Usually caused by faults on the utility power system. Causes unexpected and damaging shutdown of all electrical equipment.
Solution: A no-break UPS for critical computers or networked systems that allows orderly equipment shutdown or continuous operation as needed.
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Intelligent Systems Australia Pty Ltd
PO Box 128
Sandown Village VIC 3171
AUSTRALIA
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