12/08/2009
UNIPOWER SABRE Series 1RU Hot-Swap Rack-Mount Inverters
DEWAR ELECTRONICS have available Unipower Telecom’s INV1048 & INV1548 Series 1kVA & 1.5kVA sine-wave inverter modules which are available with 2-unit shelves. They operate off a 48VDC source and produce a 120 or 230VAC nominal output. The inverter system is scalable from 1kVA or 1.5kVA for one module to 18kVA for 12 modules which operate in parallel. The low distortion 50 or 60Hz sine wave is produced by DSP controlled power circuits using an advanced high frequency, pulse-width modulation technique which achieves 90% efficiency and 10.5VA per cubic inch power density.
The inverter modules are hot-swap and field replaceable. In the shelves they are automatically paralleled for higher output power and N+1 redundancy. They are fully isolated from the battery and self-cooled by internal variable speed fans.
Front panel LEDs indicate inverter status and relay alarm outputs are available on the back of the shelves. The Sabre Series inverters can be operated independently or integrated with a matching Controller and Static Transfer switch as well as a Power Distribution & Maintenance By-Pass unit. When the Controller is employed a Remote Communications option provides connection to a PC via USB, RS232 or RS485 serial connections The controller also provides 5 relay alarm outputs that can be programmed for various system parameters. SNMP alarm traps (replacing the relay alarms) can also be provided over an Ethernet TPC/IP connection.
Typical applications include Wireless Base Stations, Central Office Power, AC Appliances Utility Substations, Battery Backup Systems, Data Centre Power, Other Telecom Equipment, etc.
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