220V Switching Power Supply

We specialize in AC DC rectifier systems for more than 10 years.
It can provide sufficient power to meet the requirements of the communication system.
Rack-mounted design is suitable for all kinds of exchange room, Server room, Base room,
Satellite communications, Data communications, Locomotives and Utility power systems etc.
Specifications:
Input(AC): 85V-290Vac
Output(DC):220Vdc,
Output current: 10A,20A,30A  N+1 redundancy

Soft switch
Rectifier power circuit is divided into active PFC and DC to DC converter which can make the wide input voltage range (85V-290V) and high efficiency (above 97%). High power density has reached the international advanced level.


Features:
With active power factor compensation technology power factor of rectifier is up to 0.99
Standard height 2U, the weight of each module is 2.4kg and output current is Max 50A, with high power density.
Rectifier modules adopted soft switch technology. When load rate is 10%, efficiency can be 91%; 50% load rate, the efficiency can be above 95%
Complete battery protection and load disconnect management. It has LVD function, which maximizes to protect battery.
Rectifier and monitor modules adopt hot swap technology, Plug and play;
Standard RS232 communication interface; 3-class alarm dry contact: Emergency alarm, main alarm and minor alarm.
Complete fault protection, alarm function;
Low radicalization: Advanced EMC rectifier design can meet the communication power rectifier equipment electromagnetic compatibility limits and measurement methods in the PRC telecommunications industry and standard YD/T983 conducted and radiated interference requirements.
System configuration is flexible and easy to expand; N +1 redundant power supply. It can be
Configured according to customer demand;

Monitor
Monitor has built-in CPU, monitoring the operation status of modules, and is responsible for the communication. The rectifier module receive ON/OFF current limit point and voltage setting sending by monitor through RS485, and send back the voltage, current, temperature limiting point ON/OFF status and alarm in real time to the monitor module.



3. Specification

1. Environment
Work temperature: -25º C ~ 65º C
Storage temperature: -40º C ~ 85º C
Relative humidity: ≤ 97%RH
Height above sea level: ≤ 3000m
2. Input properties
Input 185~290VAC normal output
85~185VAC reduce output
3. Output properties
DC output voltage 220vdc , It can be continuously adjusted by monitoring module
DC output current  10A
Voltage regulation precision: ≤ 0.6%
Load regulation: ≤ 0.5%
Voltage regulation: ≤ 0.1%
4. Output current-limiting properties
In the range of 0 ~ 110% rated current can be continuously adjusted.
5. Power factor: ≥ 0.99
6. Efficiency: ≥ 95%
7. Boost-current imbalance: ≤ 3%
8. Temperature compensation coefficient: Can be set manually, unit (mV/º C)
9. Dc output noise:
Peak noise voltage: ≤ 200mV 0 ~ 20MHz
Weighted psophometric noise voltage: ≤ 2mV
Wide frequency noise voltage: ≤ 50mV 3.4kHz ~ 150kHz
≤ 20mV 0.15 MHz 30MHz
Discrete noise voltage: ≤ 5mV 3.4kHz ~ 150kHz
≤ 3mV 150kHz ~ 200kHz
≤ 2mV 200kHz ~ 500kHz
≤ 1mV 0.5MHz ~ 30MHz
10. Noise: ≤ 45dB(A)
11. Alarm & Protection
1)Over-current protection
Over-current protection of input (use fuse)
Over-current protection of output (use fuse)
Over-current protection of PFC (use diverter)
Short circuit protection (reduce input current to protect)
2)Over-voltage & low-voltage protection (The following parameters can be adjusted by hardware. )
Input low-voltage protection: 85± 5V, hysteresis: 10V ~ 20V
Input over-voltage protection: 290± 5V, hysteresis: 5 ~ 20V
Output over-voltage protection: 59 ± 1V
3) Other protection
Over- temperature protection (default value 80º C, hysteresis: 10º C)