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What is UPS…

ItstandsforUninterruptedPowerSupply

Comesinactionwhenmainpowersupplyfails

orpowerinterrupts.

Worksasbackupsupplyforshortduration.

Energystoredinbatteriesareusedasa

backupsupply.

Hastypicalelectroniccircuitconsistingof

batterychargerandinverters.

Providesprotectionfrompowersurges.

Conventional Static UPS

Conventional Static UPS

Cons of Conventional UPS

 Needsbatteryforenergystoragewhichrequireshigh

maintenance.

 Haveelectroniccircuitlikechargerandinverter,so

lessreliable.

 Havelesspowercarryingcapacityi.e.notsuitablefor

heavyloads.

 Transientresponseisnotgoodsoitisnotsuitablefor

verycriticalloads.

 Inverteroutputisnotpuresinusoidalinnaturehaving

spikesandflattops.

 Notpurelyuninterrupted,ithaveinterruptionofthe

orderoffewmillisecond.

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