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

Because the inverter is always active, there is zero transfer time when the power fails.

When voltage falls outside a specific range or fails entirely, a mechanical switch transfers the load to the internal battery and inverter. shemy raboty ibp

Activates when utility power fails completely or fluctuates beyond the AVR's corrective range.

Similar to Off-line, but includes an autotransformer (AVR - Automatic Voltage Regulation). This allows the UPS to boost or lower incoming voltage without switching to battery power. Low cost and high efficiency, but features a

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.

Provides the highest level of protection against all power disturbances (noise, spikes, frequency shifts), but is more expensive and slightly less energy-efficient due to constant double conversion. Summary Comparison Table Off-line (Standby) Line-Interactive On-line (Double Conv.) Transfer Time 0 ms Voltage Regulation None (only on battery) Basic (via AVR) Perfect (constant) Best Use Case Home computers Small offices, workstations Servers, data centers Cost When voltage falls outside a specific range or

The most advanced scheme, designed for critical equipment like servers and medical devices.