Specifications

1.1Preface

The Electric power supply power is the electric equipment developed with Resonant Soft switching Techniques.

Main characteristics

lWide range of input voltage

lHigh power density, forced air fan cooling, small size

lMultiple protections including phase loss protection, over current, over voltage, over temperature and short circuit.

lHigh stability of output voltage

lautomatic current sharing technique, parallel unequal current ratio<±5%.

1.2Main protection function of Module

1.2.1 Phase loss protection

Once phase loss, the module will shut down automatically for protection and send out warning signal.

1.2.2 Output overvoltage protection

To prevent the disastrous accident caused by outputting overvoltage, there is overvoltage protection circuit in the module. In case output overvoltage occurs, the module locks up automatically, the 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 at 34±1 VDC

1.2.3Output 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, when voltage goes down to 12V, the output current value will start decrease to protect the equipment. The max output current value of the module can be continuously adjustable by adjust button. If the load output of the module, the module will play down the output voltage

1.2.4Output short-circuit protection

When output short circuit occurs, 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. The Module also send out warning signal.

1.2.5Over-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 90°C±5°C, it will shut down automatically to protect itself. When the temperature reduces below 80°C, the module will start up automatically.

1.2.6Insulation Strength

Input-Output :2000VAC Leakage current≤8mA

Input-Module Shell : 2000VAC Leakage current≤8mA

Output-Module Shell : 1000VDC Leakage current≤4mA

Result: No flashing or arcing within 1 minute

1.2.7 Insulation Resistance10MΩ

Test with 500V Megohm-meter, insulation resistance ≥50MΩ

1.2.8 Module parallel connection 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.

operation panel