New Industry Products

Unipower Telecom Debuts the INV5000 Telecom Inverter

July 17, 2001 by Jeff Shepard

Unipower Telecom (Coral Springs, FL) announced the INV5000 telecom inverter that produces 115Vac at 5,000VA in a 2U high shelf. It is mountable in either a 19in or 23in equipment rack.

The INV5000 system consists of two INV2500 inverters. The two 2,500A inverters have their outputs paralleled in a 60Hz sinusoidal waveform with +/-0.1-percent frequency stability and less than two-percent total harmonic distortion. The input voltage is 48Vdc nominal, with a range of 42Vdc to 56Vdc. The unit is fully isolated from the battery.

The INV5000 features input circuit breakers that turn the inverters on and protect the battery from input faults. Output breakers connect the inverters to the load bus and quickly disconnect them in the event of an internal fault. The inverters also have a synchronization feature for connection to a live ac bus. They have a high surge capability for starting into inductive loads like motors, but the quick-trip output breakers trip if power tries to flow back into a faulted inverter.

Unipower's INV5000 also features front-panel LEDs to indicate inverter status and form C-relay alarm contacts. The inverters are self-cooled by internal ball-bearing fans. They employ MOSFET and IGBT power switches together with advanced high-frequency, pulse-width modulation techniques. The fully isolated output can power any load from a +90 to -90 degrees phase angle.

The INV5000 is suitable for use in telecommunications sites, electric utility substations, fuel cells and solar-panel applications. It costs $4,875 and is available in one week for small quantities and six weeks for larger volumes.