60V 4000A IGBT oxidation rectifier
oxidation description:
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.
Specification
| SPECIFICATIONS FOR GKD60-4000CVC |
| Input AC | 480V±10% | 3 phase | 50/60Hz |
| Output DC | Volt | 0~60V Adjustable |
| Current | 0~4000A Adjustable |
| Power | 240KW |
| Efficiency | >85% |
| output Frequency | 40KHz fixed |
| output ripple | 5% |
| Protection | Short circuit protection
Overheating protection
Phase lack protection
Input over/low voltage protection |
Working Condition
(Temperature) | -10℃~50℃ | Control mode | Panel control
Remote control |
| Net weight | 800kg | Working mode | Constant Voltage(CV)
Constant Current(CC) |
| Dimension(mm) | 1415*1060*2180mm | Cooling way | water cooling |
60V 4000A IGBT oxidation rectifier picture:
60V 4000A IGBT oxidation rectifier Features
Cabinet:
Cabinet adopts magnetic cut links, reduce eddy current losses, and
cabinet as a whole spray painting
Structure:
Reasonable structure design, isolated the inverter part and ,
rectification part , convenient to disassemble and maintenance
Radiator:
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
Main transformer:
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
Board :
all control boards did anticorrosion treatment with imported three
defense lacquer
IGBT:
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.
