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PCQ Bureau
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Tata Liebert PSA-700-230

A good performer with a rich set of features 

When we subjected this UPS to the
"true" rating test, viz 700 VA, it gave an overload
signal. However, it managed to sustain the load. The UPS takes very
little time to switch over, and gives a backup for seven minutes at
80 percent of its rated load. Its switchover voltage range is really
good, though the output voltage does drop to 196 V. This was one of
the few UPSes that corrected voltage surges within one half-cycle,
which is very good. The price is inclusive of software, but the
latter has to be downloaded from their Website. It comes with a
two-year warranty. Among other things, it was one of the most
feature-rich UPSes in the shootout, coming with comprehensive
documentation and controls. Though the price is high, this UPS is a
very good choice considering its performance and features.

TL PSA-700-230

Type: 700 VA line-interactive

Price: Rs 9,990

Backup: 7 minutes

Switchover voltage (max, min):
273 V, 159 V

Voltage regulation:

196-241 V

Deltron Intelligent
 

A well-priced UPS with long backup time
 

The Deltron
packs in two 12 V 7 AH batteries, thereby giving a long backup time
of 12 minutes. The other area where it tops is price. At Rs 4,800,
it was only Rs 200 more than the least priced one in the shootout.
The UPS comes with good documentation, and a comprehensive set of
indicators on the front panel, that, among other things, show
battery charge level and overload. The UPS could do with better
surge protection–as it switches to battery when the input voltage
is high. This is acceptable, but it would be better if it could
correct surges while remaining on mains. Also, it could not lift the
full rated load, managing only 80 percent.
   

 

Type:
500 VA line-interactive

Price: Rs 4,800

Backup: 12 minutes

Switchover voltage (max, min):
280 V, 148 V

Voltage regulation: 214-249 V
   

TVS StartUPS 500J
 

The performance and features of this UPS make up for its slightly high price
 

This was the
most feature-rich UPS of the lot–compact, good documentation,
comprehensive set of indicators, and price inclusive of software.
For a 500 VA UPS, it’s slightly expensive compared to others, but
the performance and features make up for that. The StartUPS gave a
backup of four minutes, and switched to battery when handling surge.
This was also able to lift 80 percent of its rated 500 VA. However,
overall, a great buy.
   

 

Type:
500 VA line-interactive

Price: Rs 8,300

Backup: 4 minutes

Switchover voltage (max, min):
289 V, 158 V

Voltage regulation: 205-257 V

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