性能特点 Product Overview

It is mainly characterized by stable operation, good anti-interference performance, low ripple coefficient, and high technical accuracy. Divided into two structural categories: single cabinet and split cabinet; The product is widely used in power plants, hydropower stations, various substations, switch stations, and user transformers with different voltage levels from 10kV to 500kV. It provides DC screens for instruments, relay protection, and emergency lighting in circuit breaker opening and closing and secondary grid. The system adopts an integrated design concept and consists of monitoring modules, rectification modules, insulation monitoring modules, battery inspection modules, switch monitoring modules, voltage reduction modules, etc. It has the characteristics of technical stability, reasonable configuration, intelligent measurement and control, and easy operation. Can communicate with the upper computer for convenient implementation. The four remote functions of telemetry, remote control, remote signaling, and remote adjustment are particularly suitable for unmanned operation needs.

型号及含义 Model And Meaning

系统特点System Features

1. Adopting the modular design unique to high-frequency switching power supply, with N+1 hot backup.


2. Ultra wide voltage input range, strong adaptability to the power grid, and can be used in relatively harsh environments.

3. The charging module can be plugged in and unplugged with electricity, and can be maintained online for convenience and speed.

4. There are reliable lightning protection and electrical insulation measures to ensure system and personal safety.

5. Adopting a large touchscreen, dot matrix LCD display, CCFL backlight, to achieve fully localized real-time display and operation.

6. The parameters of various parts of the system can be queried and set through touch screen monitoring, with a user-friendly interface and easy operation, truly achieving human-machine dialogue operation.

7. The monitoring module can automatically complete precise management of battery voltage, charging and discharging current, and temperature compensation, ensuring that the battery works in the best state and extending its service life.

8. Adopting a distributed monitoring system with microprocessors as the core, modular design, implementing comprehensive monitoring and control of the power system, as well as the "four remote" and unmanned operation of the power system.

9. The battery management unit automatically monitors the terminal voltage, charging and discharging current of the battery in real time, and controls the equalization and float charging of the battery. It is equipped with functions such as battery overvoltage skin pressure and charging overcurrent alarm.

10. The software and hardware of the monitoring system adopt an open design, and the measurement and control parameters of the monitoring system can be added or modified at any time according to different user needs,

11. A monitoring system supports monitoring of dual battery packs, three charging devices, and bus segmentation mode, enabling automatic charging management of dual battery packs and independent management of the two battery packs to ensure battery safety.

12. More than 95% of the main electrical components are sourced from well-known domestic and foreign brands, with sufficient quality assurance.

13. Provide two communication interfaces, RS232 and RS485, and three communication protocols to choose from: RTU, CDT, and MODBUS.

Note: Accident signal or warning signal alarm function and inverter power supply can be added according to user needs for DC/AC, DC, DC conversion.

技术参数 Technical Parameters

外形尺寸图 Dutline Dimension Drawing

1. Two mains power sources switch to one AC input, providing power to each charging module. The charging module converts the input three-phase AC power into DC power, charges the battery, and supplies power to the closing bus load. In addition, the closing bus supplies power to the control bus through a voltage reduction device.
2. The basic monitoring units in the system are managed and controlled by the main monitoring, and the information collected by each monitoring unit is sent to the main monitoring for unified management through communication lines. The main monitoring system displays various information of the DC system, and users can also touch the display screen to query and operate the information. The system information can also be connected to the remote monitoring system.

3. In addition to basic units such as AC monitoring, DC monitoring, and switch monitoring, the system can also be equipped with functional units such as insulation monitoring and battery inspection to comprehensively monitor the DC system.