Liebert NX

The Liebert NX from Emerson Network Power is the Next Generation of true-online, double conversion digital UPS. Designed to meet the high availability power needs of a wide variety of applications, the Liebert NX combines innovation and simplicity and low cost of ownership. The result is a power system that delivers both reliability and a return on investment beyond what has been traditionally offered. The system’s advanced True On-Line, double conversion topology features a digital signal processor (DSP) controlled IGBT rectifier and a digital signal processor (DSP) controlled IGBT inverter. DSP Power Factor Corrected IGBT Rectifier The rectifier provides larger than 0,99 Input Power Factor (PF), less than 3% of Input Current Total Harmonic Distortion (THDi) and the widest input voltage window and frequency tolerances. Near to Unity Power Factor ensures maximization of active power leading to reduced electricity pay-out, minimization of cables, associated switchgear and backup generator sizing requirements leading to reduced investment costs. Low input current THDi avoids disturbance to other loads connected upstream the power distribution bus without the need to oversize generator set. Wide input voltage window and frequency tolerances contribute to higher battery life by minimizing battery usage. High performance rectifier design helps low Neutral potential over ground and thus ensures safety of equipment. DSP Controlled IGBT inverter Advanced inverter control technology provides the highest output power quality, ensuring very clean output voltage waveform (very low THDv) to protect connected loads. It operates under a wide variety of conditions, handling 100% non-linear loads with 3:1 crest factor, as well as 100% unbalanced loading. The inverter control makes Liebert NX to be suitable for the widest ranges of loads required by the market; including 0,9 leading PF loads. Liebert NX comes in 12 popular ratings: 10, 15, 20, 30, 40 60, 80, 100, 120, 140, 160 & 200kVA (400V, 50/60Hz). The complete range of NX UPS have the same look and feel. Liebert NX 10 to 40 kVA is designed to house an optional internal battery bank within the UPS cabinet for a specific run time, minimizing the UPS overall footprint. A complete range of external cabinets are available for all Liebert NX UPS. These include battery cabinets, battery cabinets, transformer cabinets, and maintenance bypass cabinets.