Liantuo Electric’s DC panel brings you warmth in the cold winter. DC panel is the abbreviation of DC power supply operating system. The general name is intelligent maintenance-free DC power supply screen, referred to as DC screen, and the general model is, and DC screen is used to supply this kind of DC power supply. Simply put, a DC panel is a device that provides stable DC power. (When there is 3 power inputs, it is directly converted into power supply. When there is no input power (mains power and backup power), it is directly converted into battery power supply - DC: in fact, it can be said to be an industrial-specific emergency power supply). The electric operating power supply in power plants and substations currently uses DC power supply. It provides power for control loads, power loads, and DC emergency lighting loads. It is the basis for the control and protection of contemporary power systems. The DC panel consists of a power distribution unit, a charging module unit, a step-down silicon chain unit, a DC feed unit, a power distribution monitoring unit, a monitoring module unit and an insulation monitoring unit. Mainly used in small and medium-sized power plants, hydropower stations, various substations, and other users who use DC equipment (such as petrochemical, mining, railways, etc.) in power systems. It is suitable for opening and closing switches and instruments, meters, and relays in secondary circuits. Electrical protection and fault lighting and other occasions.
The DC panel is a new type of DC system with digital control, protection, management and measurement. The monitoring host part is highly integrated, and the functional options are modular, including DC insulation monitoring, battery detection, switching values, lightning protection devices, and insulation relays. They can be selected according to the drawing requirements, effectively reducing costs! Various operating statuses and parameters of the host are displayed in Chinese characters. The overall design is convenient and concise, and the human-machine interface is friendly and in line with user habits. The DC screen system provides powerful functions for remote detection and control, and has remote control, remote adjustment, telemetry, remote signaling functions and remote communication interfaces. Through the remote communication interface, the operating parameters of the DC power system can be obtained remotely. The operating status and fixed values can also be set and modified through this interface to meet the requirements of power automation and unattended substations of power systems. Equipped with a standard R3/serial interface and Ethernet interface, which can be easily incorporated into the power station automation system.
Composition of DC screen
Charging cabinet-charging module-monitoring module-battery pack-step-down silicon chain
Main features of DC screen (system features)
High reliability:
Adopts modular design of switching power supply, + hot backup.
The charging module can be hot-swapped when powered, greatly reducing the average maintenance time.
The power bus and control bus can be directly powered by the charging module alone, and can be hot-backed up through a voltage reduction device.
Hardware low-difference independent current sharing technology, the output current imbalance between modules is superior.
Reliable lightning protection and electrical insulation measures, the optional insulation monitoring device can monitor the system insulation condition in real time to ensure system and personal safety. The system design adopts (International Electrotechnical Commission) and other international standards, and the reliability and safety are fully guaranteed.
High intelligence:
The monitoring module adopts large-screen LCD Chinese character display and audible and visual alarms.
The parameters of each part of the system can be set through the monitoring module. The module has the function of smoothly adjusting the output voltage and current, and has the function of battery charging temperature compensation.
It has multiple expansion communication ports and can be connected to a variety of external intelligent devices (such as battery testers, insulation monitoring devices, etc.).
The combination of modern power electronics and computer network technology provides support for "telemetry, remote control, remote signaling, and remote adjustment" of the power system, enabling unattended operation.
Automatic battery management and protection, real-time automatic detection of the battery's terminal voltage, charging and discharging current, and intelligent control of the battery's floating charge. It is equipped with audible and visual alarms for battery over-under voltage and charging over-current.
The system adopts a monitoring device with built-in functional units such as insulation monitoring, battery detection, grounding line selection, battery activation, silicon chain voltage regulation, and central signaling, which greatly facilitates user use. High reliability, high cost performance, and high quality Service is our eternal pursuit
Liantuo Electric DC panel brings you warmth in the cold winter