Electronics Protection - July/August 2013 - (Page 24)

Power Two Three-phase, Transformer-Based UPSs From Emerson Earn Energy Star Distinction Emerson Network Power has two models of the Liebert NXL UPS line have earned Energy Star qualification, the 480 V input 800 and 1,100 kVA models. These high-capacity transformer-based UPSs offers the operating efficiency typically found in a transformer-free UPS with the added dependability and fault tolerance the transformer provides. Both qualified models of the Liebert NXL UPS are available for 60 Hz applications across North America. As part of its larger electrical equipment efficiency improvement program, the EPA instituted its Energy Star for UPS program in late 2012, affecting UPS products rated greater than or equal to 1,500 watts. To qualify for the Energy Star certification, the Liebert NXL was subjected to testing by a UPS-specific certification body recognized by the EPA. This certification process examines products based on average power, efficiency and efficiency variation for determination of steady-state, and UPS products meeting the EPA’s requirements use an average of 35 percent less energy than their standard counterparts. Emerson Network Power’s Energy Logic 2.0 attributes seven percent of total energy consumption to the UPS in an un-optimized data center. At a total data center capacity of 3,000 kW and electricity costs of $0.10 kW/hour, a facility could save approximately $90,000 per year with Liebert NXL units operating in Active Eco-Mode 50 percent of the time. The transformer-based Liebert NXL UPS can reduce those costs by delivering added operating efficiency at typical load levels in double-conversion mode with up to 98 percent efficiency when operating in Active Eco-Mode. With the Active Eco-Mode approach, the inverter remains on line in a zero-power state while the system operates on bypass, providing the ability to instantaneously assume the load if the bypass source performs outside accepted limits. Phase Modulated Controller Features -40°C to 150°C Operating Junction Temperature Range Linear Technology Corp. has released the H-grade version of the LTC3722-1, a phase-modulated full bridge DC/DC controller with adaptive or manual zero voltage switching (ZVS). The device’s ZVS delay control and adjustable synchronous rectification timing optimize efficiency while reducing transformer size and electromagnetic interference, making it well suited for isolated high power applications of up to several kilowatts. The LTC3722-1’s adaptive zero voltage technology is accomplished by sensing the bridge MOSFETs and input voltage, allowing the converter to adapt to any change in load current, temperature, component tolerances, driver circuitry delay or input voltage variations. Additional features include fixed frequency current mode control, adjustable current limit, leading edge blanking, soft start, short-circuit protection and programmable slope compensation. An accurate 5 V low dropout regulator provides up to 15 mA to power auxiliary circuits. 24 The H-grade version operates up to a junction temperature of 150°C, compared to the E- and I-grade versions’ 85°C maximum junction temperature. The H-grade product is tested and guaranteed to the maximum junction temperature of 150°C. HP Basic PDUs Feature Ultrathin, One-Piece Design from 1.9 kVA to 19.9 kVA HP has introduced its newest HP Basic power distribution units (PDU). HP Basic PDUs provide effective power distribution, supporting from 12 to 42 outlet receptacles and power levels ranging from 1.9 kVA to 19.9 kVA. These PDUs are an entry-level line of rack-mount power distribution products for cost-sensitive environments where power monitoring and advance power control features are not required. Available in a variety of form factors and outlet configurations, the HP Basic PDU family will meet the needs of high-density data center rack environments. The low-profile, single-piece design on these PDUs provides ease-of-access to rear devices for maintenance consideration and multiple mounting options. The HP Basic PDU products are designed for HP racks but will work in a large variety of third-party racks as well. Eaton Expands 5P UPS Product Line to Provide Efficient Protection for Any IT Environment Eaton has expanded its 5P uninterruptible power system (UPS) product line in North America to include space-saving tower, 1U and 2U rackmount form factors. The configurations complement Eaton’s existing 5P portfolio and help information technology (IT) professionals optimize energy performance in network closet and server room applications. Through a graphical display located on the front of all 5P models, users are provided with detailed energy usage information and the ability to customize UPS settings. By utilizing the display and integration with Eaton’s power management software, customers are provided with insight into UPS operating status and power system conditions. The 5P configurations can also provide up to 20 percent more power than traditional UPSs to offer a solution for the protection of high-density IT environments. The 5P models are designed to integrate with Eaton’s virtualization-ready Intelligent Power software suite, which is a pairing of power management and protection software. By integrating the software suite with the 5P, users can manage their power infrastructure remotely and directly through leading virtualization management platforms, including VMware vCenter Server, Citrix XenServer, Microsoft SCVMM, Red Hat and other Xen open source platforms. The integration enables automatic and transparent live migration of virtual machines (VMs) during power disruptions to unaffected devices, and also provides a graceful shutdown of computers, VMs and servers during an extended power outage. The Eaton 5P tower and rackmount models range from 550 VA (420 W) to 3,000 VA (2,700 W). All models feature Eaton’s ABM technology, which is designed to increase battery service life by 50 percent. July/August 2013 www.ElectronicsProtectionMagazine.com http://www.ElectronicsProtectionMagazine.com

Table of Contents for the Digital Edition of Electronics Protection - July/August 2013

Electronics Protection - July/August 2013
Newer Technology Releases Next-Generation Power2U AC/USB In Wall Charging Solution
Subzero Engineering Introduces PolarXpress DCiM SaaS Monitoring Solution
Specifiers of Enclosures for Components in Outdoor Applications: Be Aware of Material Selection Issues
Formable Phase Change Materials as Latent Heat Sinks for Portable Electronic Devices
How to Protect Electronic Circuits from Power Surges
Diamond Heat-Spreaders: Growth Methods and Applications
Standards-Based Design & Electronic Packaging Solutions
Reducing Room-Level Bypass Airflow Creates Opportunities to Improve Cooling Capacity and Operating Costs
Harnessing Laboratory Wind Tunnels
New DVR Enclosure with Prepackaged Thermoelectric Cooler
New Silver Conductive Aqueous Based Sodium Silicate System for EMI/RFI Shielding
Citizen and MechaTronix LED Cooling Cooperate On New Generation CitiLED COB’s
Eaton Expands 5P UPS Product Line to Provide Efficient Protection for Any IT Environment
Flex-Block System Puts Free-Standing Enclosures on New Footing
Gore Introduces Acoustic Vent for Protecting Electronic Devices
Industry News
Calendar of Events

Electronics Protection - July/August 2013