60V 4000A IGBT oxidation rectifier
It is well known that certain metals, notably aluminum and tantalum, as anode in a suitable electrolyte become coated with
a thin oxide film, and then exhibit rectifying properties: the currents are very small for the alu,minum positively charged with
respect to the solution, while opposite polarity they may be very large, the process of formating an oxide film is caused by Al ions
flowing from the aluminum through the oxide into the solution under the influence of the high electric field in the layer and combining
with oxygen ions, the thickness of the oxide film For constallt applied voltage the current decreases exponentially with time until a
small current of less than a micoampele per remaines flowing, so that after several hours remarkable increase of the thickness
cannot be measured,The thickness of the layer is proportional to the formation voltage and of the order of 10-5 The purpose of this
paper is to discuss the mechanism of the electric conductivity of the aluminum rectifier.
|SPECIFICATIONS FOR GKD60-4000CVC
||Short circuit protection
Phase lack protection
Input over/low voltage protection
60V 4000A IGBT oxidation rectifier picture:
60V 4000A IGBT oxidation rectifier Features
Cabinet adopts magnetic cut links, reduce eddy current losses, and cabinet as a whole spray painting
Reasonable structure design, isolated the inverter part and , rectification part , convenient to disassemble and maintenance
radiator capacity expanded 1.5 times,make sure better cooling effect
switch control way:
adopt full bridge phase shifting soft switch,reduct IGBT loss,save engergy
adopts amorphous core,increase transformer efficiency,reduct the transformer temperature rise,cut the rectifier weight,improve the power supply stability, reliability
Core & Schottky diode:
core capacity expanded 1.5 times
schottky diode expands 4 times
all control boards did anticorrosion treatment with imported three defense lacquer
IGBT capacity expanded 3 times,make the power supply more reliable
60V 4000A IGBT oxidation rectifier Installation
|1, Placing rectifier and keep the body stability; ensure good ventilation.
|2, Checking anodizing rectifier out cover if loosing.
|3, Connecting shell to ground to prevent static electricity.
|4, Conecting the AC input wire
|5, Connecting the DC output copper bars
|6, Connecting the rectifier remote control box,if local control ,skip this step
|7, Turn on air switch, then the fan starts to rotate and the power indicator light.
|8, Clockwise rotation adjustment button, voltmeter degree increases, working indicate light lighting.
|9, Adjust knob to maximum, then the voltmeter should indicate the rated voltage, current meter indicates the load volume accordingly.
|10, Disconnect the air switch, turn off the rectifier
produce process :
From the beginning of the raw material to the selection, to the assembly, and finally commissioning. We will enforce the standards strictly. Before package, 24V 125A dc single output switching power supply with CE will be check again to ensure that it works normally.