Scope 1.6M DC power supply is designed for small-capacity systems design; suitable for small switching station, the small users substation, the system uses the integrated design thinking, by the rectifier module, control module, step-down unit, power distribution unit and battery installation the box composition; monitoring module with LCD display Chinese menu, system monitoring and battery automated functional, with four remote interface connected to the automation system, both RS232 and RS485 communication interface selection, RTU, CDT \ MODBUS three kinds of communication protocol selection. Features suitable constitute the following 38AH/220V, 65AH/110V. Module, control unit and step-down units hot plug structure, installation, and easy maintenance. Can be installed three 2.0A/220V, 4.0A/110V natural cooling module. Step-down unit automatically silicon chain buck, the maximum current 2A impact of current 30A/0.5S. Monitor with LCD display, Chinese menu and button operation, system parameters, system operating parameters, system fault indication and system calibration. The monitor has the function of automatic management for battery. Both RS232 and RS485 communication interface selection, provided RTU, CDT, MODBUS three communication Statute selection, can be connected with the power plant automation system. Monitor battery voltage, control female voltage, the control of female current, battery charge and discharge current, the detection of the module status. The power distribution unit provides 2-way AC input (PT can be chosen supply), 3-way feed output. PT-powered, the system automatically limits the output power. AC input voltage: 220V ± 20% PT supply voltage: 100V ± 10% of the grid frequency: 50Hz ± 10% Power factor: ≥ 0.85 Output Voltage Range: 90V-140V continuously adjustable (for 110V system) 180V-280V continuously adjustable (220V system) Output current limit: 0.2A-2.5A (single module) regulation accuracy: ≤ ± 0.5% steady flow accuracy: ≤ ± 0.5% Ripple coefficient: ≤ 0.1% current: ≤ 5% efficiency: ≥ 93% Output over-voltage protection: 280V ± 2V (220V), 140V ± 2V (110V) Insulation resistance: ≥ 10M Dielectric strength: output, input, input-to-output is applied 2KVAC time of 1min no arc flash the network. Relative humidity: ≤ 90% Ambient temperature: -5 ° C to 45 ° C audible noise: ≤ 55dB Dimensions: 1600 × 600 × 600 (H × W × D)