4.5 Battery Backups
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5 Terms
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Uninterruptible Power Supply (UPS)
Always up and available, even if you lose main power
Backup power
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Standby UPS
Always connected to main power, but if main power goes away, it will move itself to battery backup
Slight delay in transition
10 milliseconds
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Line-interactive UPS
Always connected to main power, but has connectivity to main battery, so if main power is lost, it’s a faster transition to the backup
4 milliseconds
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On-line UPS
Always connected to the battery
If you lost main power, no switching, use of battery is INSTANTANEOUS
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Surge suppressor
Checks for voltage spikes
Moves excess power to the ground, only allows proper amount through to connected devices
Note 
Flashcards (143)