90A 4800W DC Power Rectifier System 220VAC Input 48VDC Output
For Outdoor Telecom Cabinet
Model: GPE4890J
Introduction
The DC power system is used for outdoor telecom cabinet, have the
features, efficiency and reliability to match the needs of most
telecommunication networks.
We integrates high-efficiency modular rectifiers into shelf and
embedded rack systems featuring remote monitoring, custom
distribution centers, low voltage disconnects, alarms, relays and
enclosures for outdoor application.
Features
Adoption of active power factor compensation technology with
factor ＞0.99
Zero current/voltage switching tech with high efficiency ≥91%
Hot swappable rectifier modules
Ideal for 48V telecom power plants
Wide operating range of AC input voltage: 90~280Vac
DC power distribution options
Advanced battery management, charge & discharge management,
battery temperature compensation, low voltage protection, extend
battery lifetime
Surge protection
Communication mode: RS232, RS485, Ethernet
Input and Output Alarms
The monitor has sleeping function, saving energy.
Application
■ Access network
■ Transmission equipment
■ Mobile communication
■ Satellite communication ground station
■ Microwave communication
Operating Principle
After AC power is controlled by the AC hydraulic switch and then
through the EMI board lightning protection and filtering
processing, into the rectifier module, AC hydraulic switch has the
function of overload and short circuit protection to AC power.
Under normal conditions, every parameter of rectifier modules and
distribution unit are all under control of the monitoring module,
operating according to the pre-set parameter or user’s commands. If
AC mains fault, the system will be powered by the battery. With the
battery discharge, the terminal voltage of the battery starts to
descend. When the battery voltage is under -46.2V±0.5V, the
monitoring module reports battery under voltage alarm signal; When
the battery voltage is under -45.6V±0.5V, close LVLD load output;
When the battery voltage is under -43.2V±0.5V, close LVBD load
output, then the power system stops working. When the external AC
mains recovers, the system will resume to the normal work state.
(All above monitoring data are system default values that users can
reset).
Specifications
| Input |
| Parameter | Min. | Typical | Max. | Unit | Remark |
| Input voltage range | 90 | 220 | 280 | Vac | Nominal operating voltage range 100V-240V |
| 128 | 280 | 396 | Vdc | Support DC input |
| Input frequency | 45 | 50 | 65 | Hz | AC input |
| Start inrush current | | | 42 | A | When 25°C Cold start, 280Vac input, full load test |
| Power factor | 0.99 | | | | |
| Output |
| Parameter | Min. | Typical | Max. | Unit | Remark |
| Output voltage setting | | -53.5 | | Vdc | |
| Output voltage range | -43.2 | -53.5 | -57.6 | Vdc | |
| Output current range | 0 | | 90 | A | 176~280VAC/176-396Vdc input |
| 0 | | 45 | A | 90-<176Vac/128~<176Vdc input |
| Ripple (Vp-p) | | | 200 | mv | At low temperature operating for 1 hour, apply 0.1uF film capacitor
and 10uF HF electrolyte capacitor, 20MHz frequency band 20cm
twisted pair. |
| Output efficiency | 91 | | | % | 220Vac/280Vdc input,rated output |
| 85 | | | % | 110Vac/200Vdc input, 33A output |
| Regulation | | | ±2 | % | |
| Load regulation | | | ±2 | % | |
| Voltage regulation | | | ±1 | % | |
| Output power | | 4800 | | W | 176-285Vac/176-396Vdc input |
| 2400 | | W | 90-<176Vac/128~<176Vdc input (configure GPR4830A1) |
| Mechanical specifications |
| Dimensions (Overall) | 482.6mm×265mm×88.1mm |
| Weight(kg) (Overall) | ≤11kg (Inclusive of module) ≤5.175kg (Frame + Distribution, exclusive of module) |
Dimension Drawing
Electric Connection
Wiring terminal Connection Instruction:
SPD: lightning arrester; L: live line; N: neutral line; transfer
switch: lithium battery and lead acid battery transfer
switch,switch to I - lithium battery; O - lead acid battery;
Signal input output terminal definition as the right: 
FU1: battery fuse; LOADF: load fuse; 12V-12V power supply; SPD:
lightning arrester signal;1-4: dry contact output.
Output terminal definition as the right: 
BAT-: battery cathode; LOAD2-: LVBD cathode; LOAD1-: LVLD cathode;
+: Load and battery cathode
Picture
