AEG Power Solutions (AEG PS), a global provider of power systems and solutions for critical and sustainable applications, has introduced a new range of uninterruptible power supply (UPS) systems, which feature a full IGBT (insulated-gate bipolar transistor) architecture and industrial-grade built quality. The UPS systems are designed to provide safe power backup to protect refining and petrochemical industries, transportation infrastructure, manufacturing and other critical businesses against power disruptions.
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Protect 8 PLUS supports a standard three-phase input and is available as single-phase or three-phase output from 10 to 40 kVA, with 216 Vdc or 384 Vdc battery voltage. By the end of the year, it will also support 60 to 120 kVA in both configurations.
With its IGBT rectifier, the system offers a high input power factor of up to 0,99 and very low harmonic current rejection on the input side (THDi/total harmonic distortion current), which makes it a good fit in situations where the UPS is supplied by a generator set or to avoid harmonic perturbations of loads connected to the upstream busbar. This allows for substantial savings on the sizing of the upstream network. The bidirectional rectifier also enables several battery capacity tests feeding back into the grid without using the bypass line, requiring additional load banks, or affecting the load.
With the Protect 8 PLUS, AEG Power Solutions brings a new pre-charge system (patent filed) to the market, in a UPS that generates a very low inrush current of less than two times the nominal current to optimise the upstream protection.
Protect 8 PLUS offers optimum performances with the built-in static bypass switch, providing a short-circuit capability of up to 1 000% for 50 ms, which is important for petroleum industry applications. On the inverter side, it provides notable output short-circuit clearance when the bypass line is not available. This allows for selective tripping of the faulty load and keeps the other lines working to ensure higher availability and safety for the load. Overall, the system achieves up to 90% efficiency in double conversion operation with input and output galvanic isolation.
AEG Power Solutions has also improved the maintainability in the UPS system, to enable easier and faster servicing. All important components like power stacks, control electronics and capacitors are accessible from the front and the fans can be replaced without having to switch off the unit.
Protect 8 PLUS features standard output galvanic isolation and n+1 fan redundancy and surpasses the latest JIP33 requirements from the International Association of Oil & Gas Producers (IOGP). This and the optional IP43 certified cabinet make it a suitable solution for harsh environments in heavy-duty industries.
For more information visit: www.aegps.com
