Features and functions of distributed DC power supply
Features of Distributed DC Power
1. Decentralized installation, saving floor space and reducing cost. According to the embedded design concept, JRXQF series embedded DC power supply units are directly installed in the instrument box of the intelligent switch cabinet (or in the electric operation box of the outdoor device), which can save The area occupied by the DC screen. Because the power supply is in the switch cabinet, the usage of cables can be reduced, and the primary equipment investment and cable construction workload can be saved; when the total number of units is small, the total price is lower than that of the DC screen system, which can reduce the total project cost; at the same time, it can be used during operation Reduce line loss, reduce spare parts, and save operating costs.
2. Embedded power supply mode greatly improves reliability. Embedded power supply mode is used. When a circuit fails, the power supply devices of other circuits will not be affected, avoiding a little failure. The whole station has no operating power supply, which is different from the centralized power supply. Compared with the DC screen, its overall reliability can be greatly improved.
3. A variety of input and output modes, wide application JRXQF series can provide DC 220V, 110V, 48V, 24V output according to customer needs, and the AC input range is 85-265V, which is flexibly suitable for PT and mains power supply.
4. Intelligent management and maintenance, intelligent high-frequency power supply technology, self-monitoring, self-diagnosis, local display, alarm, and network communication to realize unattended automatic remote management. The built-in battery automatic charging management module can automatically carry out intelligent floating charge management on the battery, which greatly delays the life of the battery and makes the operation more reliable and safe.
Functions of Distributed DC Power
1. Device energy conversion
When there is external power, the distributed DC power supply provides energy to charge the battery and at the same time provide energy to the long-running load; during energy storage and opening and closing operations, more load energy demand is provided by the battery.
When the AC input loses power, the battery provides all the energy for the output.
2. Automatic management
The distributed DC power supply uses a single-chip computer to intelligently manage the charging and discharging of the battery, and has the functions of automatic equalization charging at regular intervals and automatic floating charging. Self-check the device at any time, and provide the buzzer alarm and external alarm signal contact output of the device body, and can communicate with the host computer, which can be used in manned and unattended power distribution systems.
The distributed DC power supply automatically detects the internal temperature of the device, and automatically turns on the fan to dissipate heat when the measured internal temperature is too high to protect internal components. After the temperature drops, the fan is automatically turned off to reduce power consumption.
3. Signal output
This device has a relay normally closed output interface. When the device has power, this signal output is synchronized with the internal buzzer alarm signal. If the whole device has no power, for example, the device is damaged or the AC input switch is disconnected, it will be closed and an alarm signal will be sent. The user can add a silencer circuit to the signal output circuit.
