Intelligent high frequency switching DC power supp

CNC bending machine PZD2(W) Series Intelligent Type High Frequency DC Switching Power Supply Panel is a new generation of self-operation power supply system developed by ECC as per national standards DL/T459 2000 and JB/T 5777.4 2000 involving general purpose technical conditions and safety requirements for DC power supplies in electrical systems. With many years successful development and manufacturing experiences in the field of DC power supply systems, ECC integrates high frequency switching technology with computer technology in this product as a whole resulting in a high quality DC switching power supply featuring remote control, remote measurement, remote communication and remote regulation functions. Its power output unit is modularly and redundantly (N + 1) designed, supervising unit may be formed by high performance and quick PLC or PC just as required, and display operating unit is made of new type man-machine interface touching screen. As a matter of fact, it is competently and widely applied in self-operation places such as power plants and substations up to 500kV. Technical data of high frequency switching power supply modules DescriptionValuesMeasuring conditionsMin.TypicalMax.Input voltage(VAC) 260380456Rated output,full load Output adjustable(VDC) 180240300Rated output,full load Voltage stabilizing accuracy 0.1%0.1%(Output)198-286VDC,20-100%load,(Input)260-456VAC Current stabilizing accuracy 0.5%0.5%(Output)198-286VDC,20-100%load,(Input)260-456VAC Dynamic response 100uS208uS500uSRated output,20-75% load sudden change Efficiency rate of recharger 90%91%93%Output 240V,90% load Max.heard noise 4550Full load,ambient noise 40dB Storage temperature(°C) -403560 Ambient temperature(°C) -52555Output 240V,full load Wide frequency noise(mv) 2540Rated output and input Buzzing noise(mv) 50100400Rated output and input Parallel connecting current uniform ±1%±3%±5%Rated output and input Time delay for start up(second) 123 Ripple coefficient 0.01% 0.1%Frequency band 0 40MHz Insulation 2000Vac 50HzLeakage current 10mA for 1 minute Temperature rise on internal radiator Level 1 (Continuous work at 100% output current) In the voltage tange of charging and float charging current Automatic current limiting Constant power protection:output current won’t increase as DC output voltage decreases Under float charging condition,output current over 110% rated current Input voltage protection Auto shut down rectifier and stop output current Under float charging condition,AC input voltage over setting value Output voltage protection Auto stop output current Under float charging condition,output voltage over setting value Output short circuit protection Auto restore normal operation after fault cleared away Under float charging condition,output short circuited by fault Output current 5A,10A,20A,30A Weight of single 5A module 5Kg Minimum dimension(mm) 320*120*213 Interface RS232,RS485 Cooling mode Intelligently temperature controlled forcing wind cold Reliability N+1 redundant Working environment Indoor Panel indication Direct indicator for output voltage and current values Phase lack protection on input Yes Over temperature protection 90±5°C Supervision Minimum single chip system,standard upstream interface and standard industrial controlled interface