High frequency switch power cabinet for communication specific DC power supply system

The high-frequency switching power supply cabinet for communication dedicated DC power supply system should be an uninterrupted high-frequency switching power supply system, which consists of an AC distribution device, a stable voltage and current high-frequency switching power supply, a 48V fully sealed battery pack, and a DC distribution screen.

High frequency switch power cabinet for communication specific DC power supply systemThe input mains power is divided by the AC distribution device and enters the rectifier module. The -48V DC power obtained by rectification in each rectifier module is transmitted to the DC distribution screen through the collector, and the DC distribution screen provides multiple -48V DC power sources to the communication equipment.

High frequency switch power cabinet for communication specific DC power supply systemCommunication and distribution equipment:
(1) Communication input shall not be less than 2 channels; (220V/380V optional)
(2) AC input voltage: generally adopts 380V three-phase four wire or three-phase five wire system. Select based on individual projects;
(3) Rated input phase voltage: 220 V;
(4) Input voltage range: 380 ± 15% V;
(5) Input AC voltage frequency: 50 ± 5% Hz;
(6) Power factor: ≥ 0.99%;
(7) Input power switch: can be manually or automatically switched;
(8) System operation modes: parallel operation, independent operation, and other multiple operation modes;
(9) It has fault alarm functions such as power outage, phase loss, short circuit, overcurrent, overvoltage/undervoltage, and overvoltage/undervoltage protection function:
(10) Equipped with reliable lightning protection function;

High frequency switch power cabinet for communication specific DC power supply systemDC distribution section
(1) Adjustable range of DC output voltage
On the basis of stable voltage operation, the system should be able to supply power to communication equipment in parallel with the battery through float charging and equalization charging modes.
The nominal output voltage of the system is -48V, with an adjustable range of -43.2V to -57.6V.
The DC output voltage value of the system should be continuously adjustable manually or automatically within its adjustable range.
(2) The system voltage stabilization accuracy should be better than ± 1%.
(3) System telephone balance noise voltage: The telephone balance noise voltage at the DC output terminal of the system is ≤ 2mV.
(4) System peak to peak noise voltage: The peak to peak noise voltage of the system's DC output terminal in the 0-20MHz frequency band should be ≤ 200mV.

High frequency switch power supply cabinet rectifier module

Select 48V30A and 48V50A high-frequency switch rectifier modules, using "hot swappable" rectifier modules;

High frequency switch power cabinet for communication specific DC power supply systemMechanical dimensions:
Dimensions: 2000mm (height) x 600mm (width) x 600mm (depth)

Dimensions: 2200mm (height) x 800mm (width) x 600mm (depth)