New generation of uninterruptible power systems - 240V DC system, low cost, high reliability

input AC 380V, output 240V DC, connect directly to PC and Server, just like uninterruptible power systems, no need to change

Rectifier Module

theory for the UPS replacement by 240V DC system 

Parameter details :

Parameter		Integrated 240V DC power system
Input	Input voltage	380V AC±15% 3 phase, or 220V AC±15%
	AC input frequency	45Hz ~ 65Hz
	Efficiency	≥94.3% (singel rectifier module)
Output	Output voltage	204-288V DC adjustable
	Output current	400A / 1200A
	power factor	≥0.99
	Ripple	≤ ± 0.5%
	harmonic current	≤5%
	Start delay	3 ~ 8s
	Current stabilization	≤ 1%
	Voltage stabilization	≤ ± 0.5%
	Inter-rectifier Current sharing imbalance	≤ ± 3%
Cooling method		Self-cooking, or forced cooling with fan
Protocal		RS485, RS232
Accoustic noise		<60dB
Protection	Multi-protection	Multi-protection including input over or under-voltage, output over or under-voltage, over-temperature, reverse connection, phase failure, and short circuit protection. The rectifier will shut down without output, and will return to normal operating after fault is cleared.
	Automatic current limiting	The output current will keep fixed without increase after it exceed the set point.
Environment	Operation ambient temperature	-10°C ~ 40°C
	Storage temperature	-40°C~ 70°C
	Relative humidity	≤ 90%
	Air pressure	70 ~ 106kPa
Safety	Insulation resistance	I/O to chassis and input to output >20MΩ (Test voltage: 500Vdc)
	Dielectric strength	Impose 2500Vdc between I/O and the chassis aftering shorting the input and output for one minutes. No breakdown or flashover
Mechanical	Cabinet Size (W × D × H) mm	800×600×2260, customized according to configuration

Main Features:          (1) modular design characteristic of switching power supply          (2) redundancy hot standby           (3) adjustable to various power networks with super-wide voltage input range         (4) rectifiers being hot-pluggable, convenient for online maintenance           (6) with the patent switching technology, the rectifiers features high efficiency with low EMI       (7) low difference active load sharing of rectifiers ensures inter-rectifier imbalance rate of only  3%          (8 ) CE safety and EMC certified rectifiers, ensuring reliability and safety         (9) open interface design with strong communication function, RS485, or RS232          (10) automatic battery management and protection, with real-time monitor function over battery operation state and parameters         

Main Component:           (1) AC input distribution: AC distribution cabinets.           (2) Rectification: rectifiers and insulation diodes           (3)  DC output distribution: diode chain, IMS, switching branches (connected to the switching bus), and control branches (connected to the control bus).            (4)  Monitoring system: power control unit (PCU) and distribution monitoring box.        (5)  All the modules and components could be customized accordingly. 

New generation of uninterruptible power systems - 240V DC system, low cost, high reliability