The rectifier main circuit is divided into:
A. Double anti star belt balanced reactance;
B. Three phase bridge or same phase reverse parallel double anti star belt balanced reactor;
C. Same phase reverse parallel three-phase bridge type:
D. Six phase dual anti star circuit E, twelve phase dual anti star belt balanced reactor, power component using high-power thyristor
The rectifier transformer adopts 0 27 or 0.35mm high permeability, undirected cold-rolled silicon steel sheet, designed as a five column three-phase input, and the first stage is wound with low resistivity chlorine free copper wire; The main transformer adopts two vacuum impregnation and drying processes to effectively ensure its safety factor and stability. The cooling methods can be divided into self cooling outdoor type, air cooling, water cooling, oil immersed water cooling, etc., which can be selected according to the process requirements. It has three optional working states: periodic commutation, forward and reverse. The positive and negative pole switching time, voltage, and current can be set arbitrarily, and the polarity of the output current can be automatically changed, which is conducive to increasing the hardness, density, and brightness of the coating. The three-phase integrated trigger control board adopts Japanese technology and has multiple protection measures, making it a novel and efficient anti-interference strong impulse trigger circuit with advanced performance; The trigger and regulator of the control circuit are integrated and digitized, and a large board structure optimized by computer design is adopted, with high reliability and convenient detection and debugging. Equipped with automatic timing function, it can better control the quality of coating thickness, hardness, wear resistance, and other aspects. Different functions can be added according to the user's process requirements.
The equipment is equipped with functions such as overvoltage, undervoltage, overcurrent, water pressure reduction, high component temperature, phase loss protection, and corresponding fault alarms; Multiple process parameter schemes can be set, such as current, voltage, pulse, time, ampere hour, etc., and can be called for modification and execution. It can achieve remote control of the remote control box and centralized control of central safety. According to user requirements, PLC programmable controllers are used to achieve automation of relay operation, protection, and process.
The product cabinet can adopt a computer standardized design with an overall sealing design. The structure adopts measures to prevent salt spray acidification, and plastic parts are used locally. This not only prevents corrosion and looks beautiful, but also basically overcomes the influence of high current magnetic field eddy current heating, resulting in low equipment loss and high efficiency.
It has a soft start function to prevent damage to the rectifier caused by instantaneous current during startup, and to avoid workpiece burning. When the maximum output ripple number is<5%,<3%,<2%, 1%. The entire machine can be fully loaded for a long time, ensuring safe and reliable operation. Output DC current: 100A-80000A; Output DC voltage: 0-12V, 8V, 24V -. 500V, etc. can be selected according to process requirements