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1: Introduction to DC wall-mounted power supply
Name
: Intelligent microcomputer DC wall-mounted power supply
Model:
D (DC screen power supply)
Small wall-mounted power supply The system is designed by Shenzhen Zhilian Shengda Technology Co., Ltd. specifically for small-capacity systems. It is suitable for small switching stations and small user substations. The system adopts an integrated design concept and consists of a rectifier module, a monitoring module, a step-down unit, a power distribution unit and a battery installation box. It has the characteristics of small size, simple structure and independent system. The monitoring module adopts D Chinese character menu display and has perfect system monitoring and automatic battery management functions. It has four remote interfaces to connect to the automation system, providing r and r. Two communication interface options are provided, r and D. , D three communication protocol choices.
2: Working principle of DC wall-mounted power supply
In the DC wall-mounted power supply, two channels of mains power supply power to each charging module through AC switching and input. The charging module converts the input single-phase alternating current into direct current to charge the battery and at the same time supply power to the closing load. In addition, the closing bus bar is stepped down and stabilized by the step-down silicon chain device to supply power to the control bus bar. When the mains power is outage or abnormal, the battery discharges the emergency power supply system. Each basic monitoring unit in the system is managed and controlled by the main monitoring unit, and the information collected by each basic monitoring unit is sent to the main monitoring unit for unified management through communication lines. The main monitoring system displays various information of the DC system. Users can also query information and operating system information through the LCD screen or touch screen, and can also access the remote monitoring system.
Three: Characteristics of DC wall-mounted power supply system
★Suitable for systems consisting of /, / and below.
★The modules, monitoring units and voltage-reducing units all adopt a live plug-in structure for installation and easy maintenance.
★Can install ./, ./natural cooling/air cooling modules.
★The voltage-reducing unit has an automatic silicon chain voltage-reducing function, with a maximum current inrush current of /.
★The monitor adopts D display Chinese character menu button operation to realize system parameter setting, system working parameter display, system fault indication and system calibration.
★The monitor has the function of automatic battery management.
★Provide r and r two communication interface options. Provide r, D, D three communication protocol options to connect with the power station automation system.
★The monitor implements battery voltage, bus voltage control bus current, battery charge and discharge current, and module status detection.
★The power distribution unit can provide two AC inputs (one power supply can be selected) and three feed outputs.
★The system automatically limits the output power during power supply
Four: Technical specifications of DC wall-mounted power supply
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Technical specifications
AC input
Voltage range
%
Frequency range
%
DC output
Rated voltage (D)
/
Voltage regulation Range (D)
Rated current (D)
Output current limit range
%-%
Voltage stabilization accuracy
.%
Current flow accuracy
.%
Ripple coefficient
.%
< br/> Conversion efficiency (full load output)
Dynamic response (load%-%)
Recovery time overshoot %
Environmental conditions
Insulation Strength
Noise
Working environment temperature
-℃～+℃
Transportation and storage temperature
-～℃
Humidity
-% No condensation
Protection function
Output over-voltage protection, output current-limiting protection, output short-circuit protection, over-temperature protection module in parallel Protection overcurrent protection
Dimensions: (width) (height) (thickness)
Commonly used models are:
D wall-mounted power supply D wall-mounted power supply D wall-mounted power supply
D wall-mounted power supply D wall-mounted Power supply D wall-mounted power supply
D wall-mounted power supply D wall-mounted power supply D wall-mounted power supply
D wall-mounted power supply D wall-mounted power supply D wall-mounted power supply
D wall-mounted power supply D wall-mounted power supply D wall-mounted power supply
D wall-mounted power supply D wall-mounted power supply D wall-mounted power supply
D wall-mounted power supply D wall-mounted power supply D wall-mounted power supply
D wall-mounted power supply D wall-mounted power supply
DC wall-mounted power supply has two channels of mains power and one AC 15AH110V input through AC switching.