New uninterruptible power supplies (UPS) from Phoenix Contact feature intelligent technology to ensure 100% power supply reliability when the line supply fails.
With previous UPS solutions, the buffer time is manually set. However, in this case, the actual battery performance is not known. Battery performance decreases with increasing age or at high ambient temperatures, so that the battery can no longer supply the energy for the buffer time that was set. This results in power supply failures.
The intelligent Quint UPS-IQ uninterruptible power supply now determines all of the relevant battery states, such as voltage and temperature. As a consequence, it ensures the reliability of the UPS at any time, taking into account battery utilisation. The intelligent battery management knows the actual charge state of the connected battery and calculates the remaining buffer time that is available. The remaining lifetime of the battery is also known. This avoids supply interruptions and premature shutdown of industrial equipment. Service can be planned and energy storage devices need not be prematurely replaced.
To calculate the charging current, the UPS communicates with the battery and with the power supply. As a consequence, the battery is charged faster than it would be with conventional UPS systems. Furthermore, the power supply output current is controlled so that there is always sufficient energy for the loads.
Power supplies with output currents of 5, 10, 20, and 40 A are available for 24 V applications. The Quint UPS-IQ with an output power of 500 VA addresses AC applications running on 85 to 264 V a.c. All modules can be optionally combined with energy storage devices utilising VRLA technology with 1,3 to 38 Ah – or for high ambient temperatures, with especially powerful Li Ion batteries. Buffer times of 8 hours with a 5 A load current or 30 minutes with a 40 A load current are achieved.
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