copper electroplating rectifier machine with timer ,panel control
Through EMI anti electromagnetic interference filter, direct
rectification, filter wave to make AC power grid, through inverter
to convert DC voltage into square wave frequency of tens or
hundreds of kHz, then through high-frequency transformer isolation,
reduce the voltage, and then through high-frequency filter output
DC voltage. After sampling, comparing, amplifying and controlling,
driving circuit and power converter control duty cycle of IGBT to
obtain stable output voltage (or output current).
Under the working condition, the power loss of the control tube of
high frequency switch electroplating rectifier is small, the
efficiency can reach 75% - 90%, the volume is small, the weight is
light, the precision and ripple coefficient are better than silicon
rectifier. The output range can reach the precision required by
production. Electroplating rectifier has self-protection ability,
can start and stop at will under load. It is easy to connect with
computer, which brings great convenience to automatic production,
so it has been widely used in PCB electroplating industry.
Some pics was followed
Back
Application
Different volt and current has different applications
Specification
| SPECIFICATIONS FOR GKD12-100CVC |
| Input AC | 380V±10% | 3phase | 50/60Hz |
| Output DC | Volt | 0~12V Adjustable |
| Current | 0~100A Adjustable |
| Power | 1.2KW |
| Efficiency | >85% |
| Ripple | <5% |
| Switching Frequency | 20KHz |
| 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 | 7.5kg | Working mode | Constant Voltage(CV)
Constant Current(CC) |
| Dimension(mm) | 273*222.5*88 | Cooling way | Air cooling |
Features
1. 0~10V, 4~20mA,PLC,Timer, Ampere-minute/hour counter, HMI can be
provided
2. Control mode: Local control or Remote control(the length of
cable is determined by customers)
3. Japan IGBT(the default choice) or Germany IGBT are adopted
4. After being phosphated, galvanized and plastic sprayed, the
chassis has excellent corrosion resistence function
5. Easy to operate and repaire
Other advantages
1. Cabinet
a: Adopting completely digitalized machining
b: Adopting cold rolled production of iron steel sheet, after phosphorization, zinc plating, plastic spray, the rectifier gets better structural
strength and anti-corrosion.
c: Reasonable structure design, isolated inverter design,
rectification part is convenient to disassemble and mend because of
its neat assembling.
d: Radiator gets better cooling effect because of its 1.5 times capacity.
2 Electric control system
a: The rectifier adopts full bridge phase-shifted soft switch
control, ensuring the lowest power loss of IGBT. The capacity of
IGBT become 3 times bigger.
b: The main transformer. It adopts amorphous core to increase transformer efficiency and cool transformer, and not only can lighten rectifier weight,
but also can strengthen rectifier stability and reliability. At its
elementary stage, it adopts series blocking capacitor.
c: Magnetic deviation automatic correction circuit is adopted and
the total power of magnetic core gets enlarged 1.5 times.
3 Schottky Barrier Diode
a: It has been expanded 4 times.
4 All the controlling boards get antiseptic treatment with imported
lacquer.
How to install rectifier
This is installation way for remote control rectifier. Not only
this way.
1. To connect copper bar with bath/tank
2. To ensure power supply/rectifier is grounded
3. To ensure there is enough water for water cooling type power
supply/rectifier
4. We advice that all rectifiers should be isolated to increase of
its life.
The main circuit of the power supply includes the main transformer,
the power rectifier assembly and some other testing and protection
devices. The main transformer function of the power supply is to
reduce the AC current / voltage to the voltage required by the
electroplating process. The thyristor rectifier uses a frequency
(50Hz / 60Hz) transformer, while the high-frequency switching power
supply uses a high-frequency (10-50KHZ) transformer. The detection
device includes voltmeter and current transformer. The protection
device is mainly used for over-current protection of power supply
rectifier elements. The control circuit includes thyristor or IGBT,
trigger control circuit, power soft start circuit, over-current,
over-voltage protection circuit, power phase protection circuit.
