The offline UPS directly supplies the AC power to the device connected to the load device. In the event of a power outage, the offline UPS moves the transfer switch to the off position and connects the load to the battery backup route. So here this article gives the advantages and disadvantages of offline UPS to better understand this topic.
Pros or Advantages of offline UPS:
- Offline UPS has high efficiencies since the charger is not continuously on.
- Offline UPS is not very costly.
- The charger's power handling capability has been reduced.
- Internal control is simpler in offline UPS.
Cons or Disadvantages of offline UPS:
- There is a finite transfer time from mains to the inverter when the mains supply fails.
- The output of offline UPS is not perfectly reliable.
- The output includes voltage spikes, brownouts, and blackouts since the offline UPS provides the key supply when it is present.
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