Retrofit kit replaces legacy power in Sageon Tower systems
Industrial AC and DC power supply specialist, Unipower, has introduced a -48V DC Guardian DC power retrofit kit, RFK1, to replace the legacy power section of existing Sageon Tower systems. The kit mates easily to the existing towers, combining power conversion and distribution in an expandable modular architecture.
The RFK1s are 8RU high and contain two rectifier/controller power shelves that can incorporate up to seven Guardian high-efficiency hot-swap rectifier modules. A total current of 375A N+1 can be configured with up to two additional expansion kits to increase each tower’s overall capacity in increments of 500A to a total of 1375A N+1.
The systems also include an ACX Advanced Controller that monitors system parameters, controls rectifier output, and provides alarms for system failures. The controller is hot-pluggable for easy field replacement. In addition, two digital inputs and outputs are provided along with an SD memory card that can store more than 20 years’ of data logs. Systems can be programmed using a remote web or network interface while a front panel touchpad with LCD display is included for local metering, status and set-up.
Designed for demanding environments that require stable, reliable DC operating power, Guardian systems are used in cellular base station, telecommunications, cable, utility, government and industrial equipment. The RFKs can extend useful life and capacity in existing installations without the expense of replacing an entire DC power plant, said Unipower.
The RFK1 has at least 96 per cent efficiency rectifiers with internal speed-controlled fan cooling and capacity is scalable from 375A to 1375A N+1. It has remote monitoring and control, battery management, a field replaceable controller, Ethernet communications with SNMPv3 and a wide operating range from -40 to +65 degrees C.
RFK1s are compatible with Unipower’s free PowCom software that provides point-and-click data logging, analysis and display capabilities for critical power system performance and battery management data.
The retrofit kits comply with international safety requirements and are available now.
