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Liebert NXL UPS Platform Jul. 09, 2009
In an effort to optimize efficient power management capabilities and increase uptime in the data center, Emerson Network Power, a business of Emerson (NYSE: EMR) and the global leader in enabling Business-Critical Continuity™, has raised the capacity of its Liebert NXL™ UPS (uninterruptible power supply) system to 750kVA and enabled its Albér BDSi monitoring solution to be integrated into the matching Liebert NXL battery cabinet, if chosen as an option.
The Liebert NXL, which is designed for medium and large data centers, is available in capacities starting at 250 kVA. As facilities seek increased protection and/or system flexibility, the new 750 kVA model is available in single module and multi module systems (N+1 or 1+N) to achieve redundancy and maximum reliability.
The Liebert NXL is one of the first UPS systems to be listed to the new UL 1778 fourth edition requirements. It is engineered to deliver the highest reliability in the industry with a design that allows it to operate at more than 100 percent load under certain simultaneous conditions that would require other systems to de-rate their output. Conditions such as high ambient temperature, high altitude, and low- and high-line conditions have been mitigated to ensure full rating at 100 percent operating loads.
The Liebert NXL platform features a comprehensive line of matching ancillary products that enhance system flexibility and availability. These include:
•Maintenance bypass cabinet allows UPS maintenance without load power down;
•Module battery disconnect houses an external battery circuit breaker that isolates the UPS module from external battery solutions;
•System control cabinet allows control of parallel systems with up to six UPS units and contains the system static bypass switch; and,
•Matching battery cabinet features a breaker for safe battery service without shutdown and can be equipped with the Albér BDSi battery monitoring solution.
All cabinets allow easy configuration and line-up installation with internal cabling, providing savings on installation cost and footprint.
The optional Albér BDSi battery monitoring solution enables users to extend and optimize useful battery life, reduce maintenance costs, and increase safety by proactively managing system batteries. It monitors all of the 12-volt sealed batteries in the Liebert NXL UPS battery cabinet, and can be configured to support up to six battery cabinets. The monitoring system reports all critical battery parameters, including internal resistance, total voltage, cell voltage, temperature, and discharge events. This option is factory installed and tested within the Liebert NXL battery cabinet to ensure proper operation and reduce field start-up requirements. Retro-fit solutions are available for Liebert NXL UPS battery cabinet units already installed.
Additionally, facility and data center managers can enlist in a program enabling Emerson Network Power’s Liebert services team to remotely monitor and report on battery status, and make recommendations for proactive battery replacement. The Battery Service with Ntegrated Monitoring™ program includes battery and Alber BDSi preventive maintenance, firmware upgrades, an extended warranty and equipment startup.
As a large UPS system, the Liebert NXL UPS is also eligible for pre-installation load testing in the state-of-the-art Liebert Adaptive Power Witness Test Center. The 25,600 square-foot facility, the largest and most comprehensive in the industry, provides customers with pre-installation testing of the performance, interoperability, and efficiency of Liebert power modules and systems under a variety of conditions. Testing includes individual modules as well as the complete power system and is essential to the smooth, rapid installation and commissioning of large power systems.
”As critical power requirements in today’s high availability data centers continue to increase, IT and facility managers need greater power capacity along with superior reliability and energy efficiency. The Liebert NXL meets these needs without compromising system availability,” said Charles O’Donnell, vice president of power engineering, Liebert AC Power, Emerson Network Power. “Integrating the Albér BDSi monitoring solution with the UPS system gives facility and data center managers the capability to monitor battery health, maximize battery performance and reduce the possibility of failure during crucial power events.”
For more information on these and other Liebert technologies and services from Emerson Network Power, visit www.liebert.com.
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