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EY series remote power supply system


EY系列直流远供局端设备




  • Performance characteristics
  • Application field
  • Power range

◆DC/DC isolation boost function;

◆Output voltage to ground in suspension state;

◆LCD+LED display function; 

◆Output voltage can be adjusted according to the transmission distance and the load size, with adjustment range satisfying: 210V~400V continuously adjustable;

◆Automatic protection of input overvoltage/undervoltage, with protection time ≤20 ms; the system can automatically recover power supply after troubleshooting;

◆Output overvoltage protection function, with protection time ≤20 ms; the system can automatically recover power supply after troubleshooting;

◆Output overload protection function, with protection time ≤20 ms; the system can automatically recover power supply after troubleshooting;

◆Open circuit protection: when transmission circuit (positive or negative pole cable) is damaged in part or in whole, the local end high voltage output will be cut off, with protection time ≤50ms; the system can automatically recover power supply after troubleshooting;

◆Short circuit protection: in case of short circuit of positive pole and negative pole of cable in a certain position in the transmission circuit, the local end high voltage output will be cut off by the system, with protection time ≤20ms; the system can automatically recover power supply after troubleshooting;

◆Electric leakage protection: When the to-ground insulation resistance at any place of remote power supply circuit declines, to produce to-ground current (≥20mA), the local end high voltage output will be cut off by the system, with protection time ≤20ms; the system can automatically recover power supply after troubleshooting;

◆Strong current intrusion lapping protection: when it is detected by the system that, there is any lap joint between mains supply and remote power supply transmission line, the local end high voltage output will be cut off by the system, with protection time ≤20ms; the system can automatically recover power supply after troubleshooting;

◆Fault isolation: Each main module of single frame operation or the whole set of system of multi-frame parallel operation is provided with fault isolation function; when a module or frame equipment is out of order, it will exit the operating system automatically, without influence on normal operation of other devices;

◆Lightning protection: output end is provided with lightning protection and surge protection functions, with lightning protection class not smaller than 20KA;

◆Fan fault warning: when a rectifier module fan is out of order, the system will close the corresponding module output, the fault light of this module will be on, and corresponding module fan fault will be displayed in LCD;

◆Alarm: when the system is under protection, it is provided with sound and light alarm functions, and apparent protection state and alarm time point can be checked via LCD while alarming;

◆Redundancy: main power part is composed of many power modules, with N+1 redundancy design, as well as hot plugging and current equalization functions.


RRU, BBU, RPT, small macro station, micro BTS, dry discharge, EPON, GPON, ONU, and OLT equipment

600W-7500W

400-633-0592
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