500A Three Phase Plating Rectifier, 400V AC to 20V DC

Air cooling 0-300A adjustable plating rectifer matched a controller box to remote control current and voltage, used in 3-phase 380V/ 480V AC input and 24V/ 36V DC output, other desired voltages customized, features with complete protection functions, 24 hours operation at full load, energy saving more than 20% because of higher conversion efficiency, especially low DC output voltage.

Application: This kind of plating rectifier is mainly used in brush plating process, suitable for repairing plated work pieces with defects, depositing different metal patterns on metal surfaces and electrolysis degreasing and plating process etc.

Specification

Plating Rectifier Main Technical Features

• Operation mode: Remote control or manual control for optional.
• Output control mode: One-way pulse and two-way pulse output control for optional.
• Constant output control mode: Constant current and constant voltage control modes can be selected.
• Soft start time: Soft start working time can be set in the range of 0-200s.
• High control accuracy: Control accuracy ≤ ± 1%.
• Rectification mode: IGBT inverter soft switch rectification, PWM pulse step modulation, IGBT chopper control mode.
• Pulse pacing frequency range: 1000-8000Hz.
• Man-machine operation interface: PLC color touch screen.
• Main controller: DSP microcomputer digital trigger control, PWM pulse width adjustment control, pulse phase shift resolution ≤1μs.
• Main protection functions: AC power phase loss, overvoltage, undervoltage, fast fuse blowing alarm and circuit breaker protection; output overcurrent, current limit protection, output short circuit, instantaneous overload protection; IGBT switch module, fast rectifier components, switching rectifier transformer, busbar copper bus overtemperature and overheating, fan overheating or water pressure is too high/low, blocking PWM trigger pulse protection.
• Communication method: CAN bus, PROFIBUS, ETHERNET industrial Ethernet, RS485, and RS232 optical fiber communication can be configured according to customer needs to achieve remote group control or monitoring.
• With 1-5 stages of constant current slow rise and slow down stage number control, each stage oxidation current and oxidation time can be set separately.
• Real-time recording of multiple process parameters and real-time curves such as forward and reverse current / voltage, pulse current/voltage amplitude, pulse duty cycle, pulse frequency, oxidation time, bath temperature, etc.
• Remote operation control box: The remote operation control box can be configured according to the customer's site conditions, the plating rectifier machine and the remote control box are separated to prevent, the field operation is more convenient, and the rectifier's corrosion protection is significantly enhanced.
• 5 sets of process parameters can be stored or recalled to shorten the processing programming time.
• Can be connected to the computer through the RS485 communication interface, or stored in the U disk and transferred to the computer, which is convenient for the customer to save the file and analyze the product process quality of the oxidized workpiece.
• Workpiece coating quality: Compactness, smoothness and corrosion resistance are significantly better than the ordinary plating process.

Rectifier Controller Features

Tips: The constant current characteristic of three phase plating rectifier

As a kind of electroplating rectifier power supply, the three phase plating rectifier can be divided into two output states: Constant voltage and constant current. The output of current can be adjusted in constant voltage, and the output of voltage can be adjusted in constant current. In general, the power supply is designed to be able to deliver voltages and currents within a certain range. For example, a power supply can output a rated DC 12V and a DC current of 0 to 100 milliamps or 0 to 0.1 amps. The output of the power supply may experience current fluctuations etc. but the output voltage will remain unchanged.

Electroplating rectifiers do not use a constant voltage power supply with a constant voltage and fluctuating current in most electroplating applications. On the contrary, most electroplating uses a constant current power supply with a constant current flow and a freely fluctuating voltage. The plating thickness is the power supply current to On-time evaluation criteria, such as the current density of many gold-plating processes, is about 3.0 amperes per square foot (one foot is 0.3 meters). By controlling the current time, the thickness of the coating can be accurately controlled.