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    Appropriate Power Protection

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    I need help writing a 350 word paper describing what steps need to be considered when choosing the appropriate power protection. What steps need to be taken to protect and organization from power surges and power failures.

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    SOLUTION This solution is FREE courtesy of BrainMass!

    Hello and welcome to Brainmass! I have outlined some guidelines for you to consider when choosing appropriate power protection for you system. At the bottom of the page are some helpful terms along with their definitions that will help give you a better understanding of the factors that determine your ultimate choice.

    Steps to consider when choosing the appropriate power protection

    What you need to know:
    What is UPS? UPS in an acronym for Unlimited Power Supply. It is primarily made up of a battery, an inverter, a charger, and a transfer switch. The UPS supplies continuous and undisturbed power to your critical load. It is connected between the electric grid and the consumer, comprising of electric hardware and rechargeable batteries. It provides emergency power to the load when the utility mains (the main source of power) fail.

    When the major power source fails, the UPS can protect your system from:
    ?Power failures
    ?Reduction in input voltage
    ?Power spikes
    ?Changes in frequency

    How do you choose appropriate power protection?
    Before buying a UPS, here are some guidelines you should consider before deciding what is right for you and your organization:
    ?What size is appropriate for me? Think in terms of power. Think in terms of what should be protected. The important items to consider are PCs, servers, communication items and emergency lights. Do not connect printers or other external devices. Use VA (volt-ampere) specifications for the equipment when determining minimum ratings for the power supply. Next, consider the wattage rating which is the amount of real power that
    the load requires.

    ?How much back up time do I need? Your Load and your UPS batteries are the two components will help you determine how much back up time you need. UPS systems sense the battery voltage to allow orderly shutdown a short time before the battery discharges below a preset voltage level, at which the UPS will turn off. Lower load draws less current from the batteries, extending the battery time. The main idea is that your battery size in the UPS should correspond directly to your work load - large work load will lead to an increase in UPS size and vice-versa. You might also consider a generator as a backup for your UPS.

    ?What type of UPS do I need? Here, you have a choice of Off Line UPS, Line Interactive, and Double Conversion On-Line UPS. The Offline is used mainly for low power installations and is relatively cheap in terms of costs. The Line Interactive UPS have additional circuits to filter and correct output voltage and is ideal for offices that need software protection. The Double Conversion will provide stabilized voltage for all applications. It is the ultimate form of UPS protection.

    ?When you purchase a UPS, get a surge protector on communication and input lines

    ?Longer backup time does not mean better equipment. Buy only what you need.

    ?Make sure your UPS capacity allows future expansion and that you will be able to add external batteries if and when the need arises.

    ?Your UPS should include software that shuts down and automatically backs up your computers.

    ?A UPS that perform automatic routine battery checkups are highly recommended.


    Volt-ampere (VA): "Volt-ampere (VA) is a measurement of power in a direct current (DC) electrical circuit. The VA specification is also used in alternating current (AC) circuits, but it is less precise in this application, because it represents apparent power , which often differs from true power" (What is?.com, 2010)

    Wattage rating: The amount of real power that your load requires

    Power factor: The Watts and VA ratio and again, is determined by the nature of your load. This figure should be about 0.7 for PCs and about 0.8 for bigger systems.

    What is?.com. (2010). Volt-ampere. Retrieved November 25, 2010, from What is?.com: http://whatis.techtarget.com/definition/0,,sid9_gci539345,00.html

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