The OFFLINE UPS supplies (or routes) the incoming mains supply directly through to the output usually through a relay contact. Some high frequency noise filtering and surge suppression may be included in this path. The UPS switches on its inverter as soon as mains supply failure is detected or below the normal load and simultaneously switches the output relay to the inverter side to supply battery sourced power to the load. This transition involves a delay on account of the time to reliably detect mains failure and switch over a relay, and the output is broken for this period (usually for 2 to 12msec).
OFF – LINE UPS are usually the least expensive as compared to the other two.
The Block diagram of inverter section of Online ups is shown:
What exactly is Off-Linetechnology?
Off-Line is the simplest protection. The PC continues to receive power through the electrical network but without energy conversion. In the event of a problem such as power outages or voltage changes, the UPS is supported by batteries in order to stabilize the voltage. The use of this technology is appropriate for the protection of PC’s, work stations, passive terminals and low range servers.
New Design of Offline UPS LCD Display
Offline UPS 1000VA – 1500VA backup UPS / Computer power supply
Short Circuit and Overload Protection.Backup ups manufacturer, Replaceable Battery Design.
Replaceable Battery Design.
Intelligent Battery Management.
Short Circuit and Overload Protection.
Surge protected outlets available for convenience.
Microprocessor Controlled guarantees high reliability.
Advanced PWM technology for inverter output.
With LED display
AVR function, inner installed examination circuit for too low or too high voltage, can connect with the power generator.
Auto Restart while AC Recovery for Best power 500VA/600VA/650VA
This model will automatically switch to battery mode and power the load via battery until battery low .