DC Power Supply 190-300VDC 10A Substation Battery Charger and Rectifier

dc power supply 190-300VDC 10A substation battery charger and rectifier

1, Modularization design, realize N+1 backup;
2, The friendly man-machine interface. Large screen to show, realize man-machine dialogue operate really.
3, RS-485 interface, realize “4 remote” function with monitor machine.
4, High efficiency, Quasi 95%-96%;
5, Lightly, 230V/10A natural cooling module only 9kg;
6, Little volume, 230V/10A natural cooling module dimension only 325mm×230mm×130mm;
7, After the full bridge rectifying circuit rectifies 3-phase AC to DC, then adjusted by reactive PFC, power factor>0.94;
8, Function against reverse pour: each module has been added diode against reverse pour at output terminal.
9, LED digital screen, digital calibrate, stable current ,fault alarm
Output overvoltage protection
To prevent the disastrous accident caused by outputting overvoltage to electric consumers, there is overvoltage protection circuit in the module. After output overvoltage occurs, the module locks up automatically, the relative module fault indication light is on, the faulty module quits work automatically and doesn’t affect the normal operation of the entire system. The overvoltage protection point is set when ex-factory, 320V±5% is set for rated output 220V machine type, 160V±5% is set for rated output 110V machine type.
Output current limiting protect
The output current cannot increase infinitely. The maximum value of the output current of each module is limited to the rated output current 105%, in this range, the output current value of the module is continuously adjustable. If the load output of the module, the module will play down the output voltage
Output short-circuit protection
When output short circuit, the module draws the output voltage to 0 immediately, limit the short circuit current below 15%limit current point to protect the module. The module will not be damaged under short circuit state for a long time, and can go back to work automatically after debugging.

Module parallel protection
There is parallel protection circuit in each module to ensure when the faulty module quits the system, the normal work of other modules and the system is not affected.

Over-temperature protection
Over-temperature protection is mainly for protecting large power converters, under normal operating circumstance, the module design leaves enough margin, under special circumstance, when the module detects that the temperature of the radiator is over 85ºC, it will shut down automatically to protect itself. When the temperature reduces below 75ºC, the module will start up automatically.
Output over-current protection
Because of the limit of the module output power, the output current cannot increase infinitely. In the range, the output current value of the module is continuously adjustable. If overloaded, the module can reduce output voltage automatically to make it not surplus the rated output limit point in order to protect the power components. The overcurrent protection can be resumed automatically.