◆Product Summary

The intelligent high frequency switching DC power cabinet is accordance with DL/T459,GB/T 19826 and other relative standards.It combines high-frequency switching technology and computer technology,and the power output unit is designed bymodularization (N+1).The display operation unit adopts the new touchable interface display and it could be live plugged andunplugged.It has the functions of "telecommand,telemetering,teleindication,teleadjusting '.It is especially suitable for unattendedplaces such as 500kV and below substation,power plant and so on.

◆Environmental Conditions

1.Ambient Temperature:No more than +50℃ and no less than -10℃.

2.Altitude:No more than 2000m.

3.Relative Humidity:the average daily value is no more than 95%,the average monthly value is no more than 90%.

4.Earthquake Intensity:No more than 8 degrees.

5.Installation locations:without fire,explosion danger,serious pollution,chemical corrosion and violent vibration.

6.Installation Site:Indoor

7.Installation mode:anchor bolt,welded.

◆Product Features

1.Display Operation Unit:This panel adopts new PMS intelligent touchable interface display which is not only intuitive,but also veryeasy for setting system running parameters.Up to 255 parameters pictures can display nearly all running parameters includingvoltage value of every battery unit (or every battery group).Advanced touchable interface display replaces traditional pushbuttons,which can increase system reliability further.

2.AC power Distribution Unit:Using 2 ways of AC charging power supply lines,users can access 1 or 2 ways according to actualconditions.The system is distributed to each power module according to the principle of first route priority power supply.

3.Power output unit:it selects high frequency switching power supply module and uses N+1 mode.After the failure of individualmodules,it will automatically exit operation without affecting the normal operation of the system.The reliability of the whole system isimproved.The module can be live plugged,which makes the maintenance work very simple.The high frequency switching powermodule uses power factor correction technology and phase correction technology to reduce the influence of the system on thecomputer harmonic.The double closed loop voltage and current regulation technology and the unique current bending currentsharing technology make the distribution of the output current of each module reasonable and effective,and ensure the powersystem is always in the best operation status.

4.Monitoring unit:it uses high performance microcomputer,scans and controls each unit in the system at real time,provides highquality DC output to the control bus.At the same time,it V-T curve controls to the equalizing charge voltage and floating chargevoltage of the battery,according to the ambient temperature parameters of battery operation,ensuring the battery is full capacityand in good condition.In addition,the monitoring system monitors the voltage curve of each battery,so as to facilitate the timelydeletion of the battery.

◆Technical Parameters.

◆Schematic diagram of structure