Describe a switching power supply system features a unique modular design, N + 1 hot backup. Wide input voltage range, power grids applicability and can be used relatively harsh environment of the place. Charging module can be hot plug, line maintenance, and convenient. Low hardware difference between automatic current technology, the module maximum output current imbalance less than ± 3%. System design using IEC (International Electrotechnical Commission), UL and other international standards, reliability and security fully guaranteed. The monitoring module using a large-screen LCD display or touch screen, sound and light alarms. By monitoring module parameter settings for each part of the system, user-friendly, easy to operate. With smooth adjustment of output voltage and current, battery automatic temperature compensation, and other advanced features. Open interface design, with powerful communications features, it is easy to realize the substation RTU devices connected to the computer monitoring system or power plant DCS. Three of distributed control monitoring system, power supply system, "telemetry, remote control, remote, remote tune" and unattended. Automatic battery management and protection, real-time automatic monitoring of battery terminal voltage, charge and discharge current, and control of both charge the battery and float with battery over / under voltage and charge overcurrent audible alarm. 2 Technical Specifications AC input voltage: 380V ± 15% (three-phase) power frequency: 50HZ ± 10% Power Factor: ≥0.92 input overvoltage alarms: 437V ± 5V input voltage alarm: 320V ± 5V output voltage range: 180V-320 continuously adjustable, 90V-160V steady flow accuracy: ≤ ± 0.5% regulation accuracy: ≤ ± 0.5% Efficiency: ≥94% ripple factor: ≤0.1% Output voltage protection: 196V ± 2V, 98V ± 2V Output overvoltage protection: 325V ± 5V, 162V ± 2V relative humidity: ≤90% (20 ± 5 ℃) Insulation resistance: ≥10MΩ audible noise: ≤45dB Ambient temperature: -5 ℃ ~ + 45 ℃ mechanical properties: Dielectric Strength: Output to , the input to ground, input to output is applied 2KVAC time 1min no arc flashover Dimensions: 2260mm × 800mm × 600mm 3 DC-DC power supply panel screens used in power plants and substations Electric Power today are used in DC power supply and DC panel that the DC power supply is used, it is to control the load and power load and the DC emergency lighting load to provide power, is a contemporary power system control and protection on the basis of applications and therefore a large number of advanced science and technology . It mainly consists of the power line system (AC line), power dual mutual investment system, charging machine control system, battery chargers, DC distribution systems, insulation monitoring systems, integrated controller (system monitoring and control system for the DC panel of the brain ), flash systems, communication systems, batteries these parts.