Functions of Distributed DC Power Supplies
1. Device energy conversion
Distributed DC power sources provide energy to charge batteries and also provide energy to long-term operating loads when there is external power; During energy storage and switching operations, more load energy demand is provided by the battery.
When the input loses power, the battery provides all the energy to the output.
2. Automatic management
Distributed DC power uses a microcontroller to intelligently manage the charging and discharging of batteries, with functions such as timed automatic equalization and automatic transition to float charging. Perform self inspection on the device at any time, provide buzzer alarm and external alarm signal contact output for the device body, and can communicate with the upper computer. It can be used for both manned and unmanned power distribution systems.
The automatic detection device for distributed DC power supply detects the internal temperature. When the internal temperature is too high, it automatically turns on the fan for heat dissipation to protect the internal components. After the temperature drops, it automatically turns off the fan to reduce power consumption.
3. Signal output
This device is equipped with a relay normally closed output interface. When the device is powered on, this signal output is synchronized with the internal buzzer alarm signal. If the entire device is without power, such as if the device is damaged or the AC input switch is disconnected, it will close and issue an alarm signal. Users can add a silencing circuit to the signal output circuit.
Characteristics of Distributed DC Power Sources
1. Distributed installation, saving floor space and reducing costs. According to the embedded design concept, the JRXQF series embedded DC power supply device is directly installed in the instrument box of the intelligent switchgear (or the electric operation box of the outdoor device), which can save the floor space of the DC screen. Due to the power supply being located inside the switchgear, the usage of cables can be reduced, saving equipment investment and cable construction workload; 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 reduce line loss, spare parts, and save operating costs during operation.
2. The embedded power supply method greatly improves reliability. When a fault occurs in one circuit, the power supply devices of other circuits are not affected, avoiding a single point of failure. Compared with the centralized power supply DC screen, its overall reliability is greatly improved.
3. Multiple input and output modes, wide applicability JRXQF series can provide DC 220V, 110V, 48V, 24V outputs according to customer needs, AC input range of 85-265V, flexible for PT and mains power supply.
