Offline UPS Systems
Offline UPS systems use the power from the mains in usual operation rather than using a built-in inverter which would help to clean the output power and supply a more consistent flow of energy.Offline UPS Can only be used for home or small office use where you are only backing up a couple of machines. For larger operations and critical loads, you will be required to use a Line Interactive or On-line UPS Systems available ion different brands such as ; Mecer UPS , APC UPS , Mercury UPS ,Delta UPS, Unomat UPS,Cursor UPS , Tripplite UPS & many more brand
Offline UPS systems consist of a battery, a charger, and a switch that is used to transfer power from the main power source to the battery when there is a power outage. The switch is activated when the main power source fails, and the battery begins to provide power to the connected devices. When the main power source is restored, the switch transfers the power back to the main source and starts charging the battery.
Advantages of offline UPS systems
The advantage of offline UPS systems is their low cost and simple design. They are best suited for home and small office applications where power disruptions are infrequent and short. However, they are not ideal for critical applications that require an uninterrupted power supply, such as data centers or medical facilities.
Offline UPS systems are typically quite compact and can be fitted on a wall or positioned on a desk next to the systems that they are being used for. Systems like this do offer have a built-in microprocessor to guarantee a high level of reliability with a system that won’t fail you. Due to this they are typically highly budget-friendly and will be perfect for a wide range of personal power requirements.
Disadvantage of Offline UPS:
- Since offline UPS provides mains supply when it is present, the output contains voltage spikes, brownouts, blackouts.
- There is finite transfer time from mains to inverter when mains supply fails.
- Output of offline Uninterruptible Power Supply is not perfectly reliable.