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( UPS ) , „ “ , . . , - , , .
. , . UPS , . , . OnLine UPS- , . , , . UPS , , - . , . . OnLine Line Interactive UPS .
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UPS – OffLine Line Interactive. Backup UPS . . , . OffLine Line Interactive . Line Interactive OffLine , .
AVR (Automatic Voltage Regulation), , . . ( surge protector). UPS . , , .
, , . , 20 mS. UPS , - 10 mS, . . , . „ tg express “ - „ “. UPS , . APFC UPS- .