Greencisco Industrial Co., Ltd.
Telecom power system -48V50A-350A
Applied to the Base Station of GSM/CDMA,Data Communication, Access network, mobile communication, Satellite communication station, Microwave communication,2G,3G,4G,5G
Applications
● GSM/CDMA Base Station,2G,3G,4G,5G network communication
● Exchange Bureau of medium-low capacity
● Satellite communication
● Data communication
● Mobile communication and electric power systems
Introduction
Rectifier Power System consists of the distribution frame, monitoring module and rectifier module. Output voltage can be with -48VDC, 110VDC, 240VDC output. Capacity is from 500W-58KW according to different configuration; System size is from 1U system to cabinet system to meet customers different needs. With battery charger inside for lithium battery, lead acid battery, NiCd battery and LiFePO4 battery, ect. When AC power is off, system automatically transfer to battery mode and supply power to load equipments, the transfer time is zero millisecond. Outdoor system is with IP55 or IP65 standard, which is water resistant, fog resistant, dust resistant, heat resistant, rain resistant,ect.
The whole system is of high reliability and performance, and can be operated through PC software.
With high technology such as soft switching, intelligent fan cooling, and Magnetic Shield in the design and development of the power supplies. Power system are also of high efficient and high reliability, with extra low electromagnetic interference, which make them easy to maintenance.
Which can be widely applied to the Base Station of GSM/CDMA, Exchange Bureau of medium-low capacity, Satellite Communication, Data Communication, mobile communication, Access network, microwave communication, electric power system, ect.
Features
● Input: 90VAC-290VAC; Output: -42-58VDC;110VDC, 240VDC; capacity is from 500W-58KW
● Adoption of active power factor compensation technology with factor >0.99
● Wide operating range of AC input voltage: 90~290VAC
● Operating temperature range: -25℃~+55℃
● Zero current/voltage switching tech with high efficiency ≥91%
● Perfect battery management, battery temperature compensation, LVLD and LVBD protection, battery capacity test
● Hot-swappable
● Input over/under voltage protection
● Output over voltage protection
● Output over current protection
● Output short circuit protection
● Auto current sharing
● Embedded mounting 

Specification

Name -48Vdc/50A-350A power system
Parameter Minimum Normal Maximum Unit Remark
Input voltage range 90 220 285 Vac 90-285V
Input frequency 45 50 65 Hz
Inrush current 50 A cold start at25°C
Power factor 0.98
Output voltage range -43.2 -53.5 -58 Vdc
Output current range 0 200 A 176-285Vac
Ripple(Vp-p) 200 mV
Efficiency 90 92 % 220Vac input
Regulation 82 85 % 110Vac input,15A output
Load regulation ±1 %
Line regulation ±1 %
Output power 20300 W 176-285Vac input
Insulation Requirement
Input-output 4240Vdc/10mA/1min
Input-chassis 4240Vdc/10mA/1min
Output-chassis 750Vdc/10mA/1min
Leakage current <3.5mA
Resistance Humidity:90%,testing voltage:500Vdc,input-output/input-ground/output-ground not be less than 10MΩ
Normal Temperature -15 25 +55 °C startup at -40°C,when temperature at 65°C,output derating to 80%
Operating temperature -33 +55 °C
Storage temp -40 +80 °C
Humidity 5 90 % no condensing
Atmospheric press 70 106 Kpa
Altitude 0 3000 m
Cooling Forced fan
Ingress protection machine can work at dust of 5um,density<3*104/m3
EMC standard
Harmonic current IEC61000-3-2[6] Class A
RS IEC61000-4-3 Level 3
CS IEC61000-4-6 Level 3
ESD EN/IEC 61000-4-2,contact discharge+/-6kv,Air discharge:+/-8kv,Conductor contact discharge:+/-2kv
RE EN55022 Class B
CE Input:EN55022 Class B
EFT/B IEC61000-4-4 Level 3
Surge IEC61000-4-5 Level 4
Lightning AC input bare ±5 times of impacts of 5KA, lightning strike impact current waveform of 8/20us with interval of 1 minute
DIP(220Vac) EN/IEC61000-4-11
Safety standard IEC60950-1,UL60950-1,CAN/CAS-C22.2, No. 60950-1,EN60950-1
Hot plug Yes
Reliablity <250000 hours
Parallel N+1 redundancy and current sharing available at parallel operation
Environment protection No cadmium,hydride or fluoride,No organic compounds,no asbestos,packages are recyclable

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