What is line mode in UPS?

What is the difference between inline and online UPS?

When not operating from the battery, line- interactive UPS systems typically regulate output within ±8-15% of the nominal voltage (e.g. 120, 208, 230, or 240 volts), whereas online UPS systems typically regulate voltage within ±2-3%.

What is the difference between standby and line-interactive UPS?

A break in power to a load of typically 2 to 10 milliseconds is inevitable in offline/standby UPS systems. Line-interactive UPS systems typically transfer from line power to battery-derived power within 2 to 4 milliseconds, faster enough to keep the most power-sensitive equipment operating without interruption.

What is advantage of online UPS over offline UPS?

Advantages of Online UPS:

It provides isolation between main supply and load. Since inverter is always ON, the quality of load voltage is free from distortion. All the disturbances of supply such as blackout, brownouts, spikes etc are absent in the output. Voltage regulation is better.

What are the two types of UPS?

The three major types of UPS system configurations are online double conversion, line-interactive and offline (also called standby and battery backup). These UPS systems are defined by how power moves through the unit.

What is offline inverter?

Offline UPS is a type of UPS that directly supplies power to the AC load from AC mains in normal operation and uses an inverter to power the AC load from the DC battery. Since there are two separate supplies, the output supply must be switched between the two sources.

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Is Line Interactive UPS offline UPS?

Line-interactive UPS systems are basically offline topology enhanced by the addition of voltage regulation features to the raw mains supply. These typically use either a ferroresonant transformer or a buck-boost transformer implementation.

Do I need double conversion UPS?

The Double Conversion On-Line UPS provides nearly ideal electrical output performance. However, the constant wear on the power components can reduce reliability and the energy consumed by the electrical power inefficiency is a significant part of the life-cycle cost of the UPS.

Why is online UPS more expensive?

“The basic technology of the online UPS is the same as in a standby or line-interactive UPS. However it typically costs much more, due to it having a much greater current AC-to-DC battery-charger/rectifier, and with the rectifier and inverter designed to run continuously with improved cooling systems.