presentation group a.pptx

8/17/2019 Presentation Group A.pptx

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Names of Presenters ID: No1. Abdullahi Mohamed Samatar 0662. Adam Kassim Mohamed 0983. Jabir Abdikarim Hussein 085

Lecturer: Engr. Said Osman Mohamed

Faculty of Engineering : Department of ElectEngineering

!opic: Standby UPS

"lass: #E$%&

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"ontent Outline :'hy do e need a (PS )

'hy do e need a (PS) !hat are some e"am#les o$ a %riti%al s&stem ' Introduction #loc* diagram of (PS Stand+y (PS diagram

Uninterruptible Power Supply Standby UPS Protection +y (PS Types of Uninterruptible Power Supply (UPS) Sys (PS Performance "haracteristics

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'hy do e need a (PS )

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!o *eep critical systems running duringmainsdistur+ances .

!hat are some e"am#les o$ a %riti%al s&stem '1. Se%urit& %om#anies .2. (inan%ial institutions .3. Militar& installations .). Hos#ital o#eratin* theatres .5. +o,ernment .6. -ele%ommuni%ation


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Introduction

An (ninterrupti+le Poer Supply/

also (ninterrupti+le Poer Source/ (PS or

+attery,-yheel +ac*up/ is an ele%tri%al a##aratus

that #ro,ides emer*en%& #oer to a load hen the

in#ut #oer sour%e/ ti%all& the utilit& mains/ $ails.

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(PS

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#loc* diagram of (PS

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Stand+y (PS diagram

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(Uninterruptible Power Supply)

(Uninterruptible Power Supply) A device that provides batter

backup when the electrical power fails or drops to an

unacceptable voltage level. Small UPS systems provide power

for a few minutes; enough to power down the computer in an

orderly manner while larger systems have enough battery for

several hours

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Standby UPS

Standby power is electrical power that a device consumes

when not in present use but plugged in to a source of

power and ready to be used. Standby power consumption is

the amount of such power that is used even though the

power drainage is not apparent. !he terms apply to

appliances such as television sets computers computer

peripheral s and various other devices including those that

use battery chargers. Standby power is e"pressed in watt s

(#).

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An uninterruptible power supply also uninterrupt

power source UPS or battery/flywheel backup is

electrical apparatus that provides emergency power

load when the input power source typically mains pofails. A UPS differs from an au"iliary or

emergency power system or standby generator in tha

provide near$instantaneous protection from input pow

interruptions by supplying energy stored in batteries

supercapacitors or flywheels. !he on$battery runtimemost uninterruptible power sources is relatively short

few minutes) but sufficient to start a standby power s

or properly shut down the protected e%uipment.

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https://en.wikipedia.org/wiki/Mains_electricityhttps://en.wikipedia.org/wiki/Emergency_power_systemhttps://en.wikipedia.org/wiki/Standby_generatorhttps://en.wikipedia.org/wiki/Supercapacitorshttps://en.wikipedia.org/wiki/Flywheelhttps://en.wikipedia.org/wiki/Flywheelhttps://en.wikipedia.org/wiki/Supercapacitorshttps://en.wikipedia.org/wiki/Standby_generatorhttps://en.wikipedia.org/wiki/Emergency_power_systemhttps://en.wikipedia.org/wiki/Mains_electricity


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A UPS is typically used to protect hardware such as computersdata centers telecommunication e%uipment or other electrical

e%uipment where an une"pected power disruption could cause

in&uries fatalities serious business disruption or data loss. UPS

units range in si'e from units designed to protect a single comp

without a video monitor (around volt$ampere rating) to large

units powering entire data centers or buildings. !he world*s largUPS the +,$megawatt -attery lectric Storage System (-SS

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https://en.wikipedia.org/wiki/Computerhttps://en.wikipedia.org/wiki/Data_centerhttps://en.wikipedia.org/wiki/Telecommunicationhttps://en.wikipedia.org/wiki/Volt-amperehttps://en.wikipedia.org/wiki/Volt-amperehttps://en.wikipedia.org/wiki/Telecommunicationhttps://en.wikipedia.org/wiki/Data_centerhttps://en.wikipedia.org/wiki/Computer


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earl& all modern #oer #rote%tion is done b&

4S .

-here are basi%all& to tes o$ stati% 4S

n line or double %on,ersion .Standb& or 74S or sin*le %on,ersion .

Protection +y (PS


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Types of Uninterruptible Power Supply (UPS) Systems

Electrical power supply interference can come in a range of forms, such as voltage dips and surges, harmonics,

or voltage spikes. These disruptions can cause serious harm to sensitiveelectrical equipment, particularly during the critical processing orproduction stages of an operation. To reduce the risk of power supplydistortion, uninterruptible power supply (UP! systems are oftenincorporated in electrical networks.

"anufacturers of electronic power suppli

es # provide reliable, high$quality power flow for sensitive electrical loadequipment and are commonly found in industrial processing applications,medical facilities, emergency equipment, telecommunications, andcomputeri%ed data systems. & UP system can be a helpful tool forensuring proper power supply performance.

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http://www.thomasnet.com/articles/electrical-power-generation/power-supply-interferencehttp://www.thomasnet.com/products/power-supplies-electronic-62660279-1.htmlhttp://www.thomasnet.com/products/power-supplies-electronic-62660279-1.htmlhttp://www.thomasnet.com/products/power-supplies-electronic-62660279-1.htmlhttp://www.thomasnet.com/products/power-supplies-electronic-62660279-1.htmlhttp://www.thomasnet.com/articles/electrical-power-generation/power-supply-interference


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/Industrial UPSFor use in industrial/manufacturing situations, such as plant facil

and factories

/Medical UPS

Used in hospitals and medical centers, Medical UPS systems are incredibly

important, as they support life-support systems and other critical equipment

/Computer and Communication System

'ound in server farms and web hosting sites, along with phone compacomputercommunication UP is probably the most commonly knowthe average person, but they range from those made for a home$office

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/Military Specification (MIL-SPEC)Miliary grade UPS systems are certified for quality under the MIL-SP! c

#hey are used in military operations throughout the $orld"

High Teperature

%s the name implies these systems are specially suited for high temperatur

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(PS Performance "haracteristic

UPS systems may be necessary in situations $here po$er fluctuations or ofrequently occur because they can pro&ide bac'up po$er circuitry that 'eep

systems operational in case the po$er supply is cut off" Under conditions in

fluctuations or &oltage disruption, the UPS can maintain constant po$er to

running, and if electrical failure occurs, it acti&ates reser&e po$er to 'eep s

operating until they can be safely shut do$n" In addition, these UPS system

also reduce the ris' posed by harmonic disruptions and line transients"%n effecti&e UPS usually includes se&eral of the follo$ing features(

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/)egulated output voltage with low harmonic distortion unaffected by voltage or load changes/ &n input current with reduced harmonic distortion

/ & low degree of electromagnetic interference and acoustic noise/"inimal transition times between normal and backup operations/*igh levels of reliability and efficiency /)elatively low cost, weight, and si%e requirements

&lthough most individual power supply systems cannot provide all of

features simultaneously, it is usually possible to find a UP with thecharacteristics suited to an application+s needs. The epartment of E-ffice of cientific and Technical nformation provides more informaon harmonics measurements.

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http://www.thomasnet.com/products/power-supply-systems-62681200-1.htmlhttp://www.osti.gov/bridge/servlets/purl/373887-S5pAFS/webviewable/373887.pdfhttp://www.osti.gov/bridge/servlets/purl/373887-S5pAFS/webviewable/373887.pdfhttp://www.osti.gov/bridge/servlets/purl/373887-S5pAFS/webviewable/373887.pdfhttp://www.osti.gov/bridge/servlets/purl/373887-S5pAFS/webviewable/373887.pdfhttp://www.thomasnet.com/products/power-supply-systems-62681200-1.html


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standby UPS

tandby UP, also known as off$line or line$preferred UP, typically coof an &// and /&/ inverter, a battery, a static switch, a low pass

reduce switching frequency from the output voltage, and a surge supprThe standby system operates with the switch setting the &/ input as aprimary power source, and alternating to the battery and inverter as basources in case of primary power failure. The inverter normally remainstandby, only activating when the power fails and the transfer switchautomatically switches the electrical load to the backup units. This typeUP system provides a high degree of efficiency, small si%e, and relativcosts, making it a common option for personal computing.

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Standby power is electrical power that a device consumes when

not in present use but plugged in to a source of power and read

to be used. Standby power consumption is the amount of such

power that is used even though the power drainage is not

apparent. !he terms apply to appliances such as television sets

computers computer peripheral s and various other devicesincluding those that use battery chargers. Standby power is

e"pressed in watt s (#).

Conclusion

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UPS systems may be necessary in situations $here po$e

fluctuations or outages frequently occur because they can

pro&ide bac'up po$er circuitry that 'eeps &ital systems

operational in case the po$er supply is cut off"

In addition, these UPS systems can often also reduce the

posed by harmonic disruptions and line transients"

!onti)))""

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ierent 4S tes are a##ro#riate $or diea##li%ations/ and that there is no sin*le 4S

that is ideal $or all a##li%ations. !ith the ,a4S to#olo*ies on the market toda&/ these*uidelines ill hel# %lear %on$usion about hto#olo*& o#erates and the ad,anta*es and

disad,anta*es o$ ea%h. -here are si*ni:%andieren%es in 4S desi*n beteen a,ailabl#rodu%ts on the market/ ith theoreti%al an#ra%ti%al ad,anta*es $or dierent a##roa%he,ertheless/ the basi% ;ualit& o$ desi*n

im lementation and manu$a%tured ualit

!onti)))""


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*+

#han's more

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