When voltage falls outside a specific range or fails entirely, a mechanical switch transfers the load to the internal battery and inverter.
Incoming AC power is immediately converted to DC (rectifier) and then back to perfect AC (inverter). The load is always powered by the inverter. shemy raboty ibp
Low cost and high efficiency, but features a short "switching delay" (typically 4–10 ms) and no voltage regulation in normal mode. 2. Line-Interactive Scheme When voltage falls outside a specific range or
An evolution of the standby UPS, often used for small office networks. there are three primary operational schemes:
Depending on the architecture of the UPS, there are three primary operational schemes: , Line-Interactive , and On-line (Double Conversion) . 1. Off-line (Standby) Scheme This is the simplest and most common scheme for home PCs.