by January 4, 1999 0 comments

The Link LU 300 was the smallest UPS we tested. This UPS
came to us in a small box, which had the connection diagram on one of its sides. So
don’t throw the box away. In the box are cables to connect the UPS to the SMPS, to
the battery pack and to the mains supply. There are few frills: an on-off switch, an alarm
reset, and clearly labelled indicators for mains, backup mode and low battery.

LU 300

Offline 300VA sub-compact UPS for
installation inside the PC, in two 5.25″ drive bays. Brief backup, and no regulation.
Rs 12,000. RQS #E0523 Ranking: 17 (of 17 tested) Efficiency: 91% at 112 W. Switchover
time: 10 ms Backup time: 4 minutes

The switchover time was 10 ms. To our pleasant
surprise, it was not only able to cold start the 250 VA load cleanly (unlike some of the
bigger units tested), but it also self-recovered upon removal of the short circuit. On the
flip side, the UPS does not provide for regulation of line voltage variations, and given
the power conditions in India, this is a disadvantage. We calculated the backup time for
the LU 300 as four minutes, just about time to save your work and shut down. Efficiency
was 91 percent, but at a low 112 Watts.

At 12,000 rupees, this UPS barely made it to our list. Go
for this one only if you are really cramped for space.

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