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Tata Liebert PSA-700-230 |
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A good performer with a rich set of features |
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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. |
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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 |
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Deltron Intelligent |
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A well-priced UPS with long backup time |
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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. |
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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 |
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TVS StartUPS 500J |
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The performance and features of this UPS make up for its slightly high price |
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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. |
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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 |