The main circuit mainly includes the main transformer, power rectifier parts and some detection and protection devices, etc. The main transformer in the electroplating power supply is to reduce the AC power supply voltage to the voltage value required for the plating process.
Author: Anna
The main circuit mainly includes the main transformer, power rectifier parts and some detection and protection devices, etc. The main transformer in the electroplating power supply is to reduce the AC power supply voltage to the voltage value required for the plating process. The transformer used in the thyristor rectifier is the industrial frequency (50Hz) transformer, and the transformer used in the high frequency switching power supply is the high frequency (10~50kHz) transformer. Detection devices include voltmeters, current transformers, etc. Protection devices are mainly used for overcurrent protection of power rectifier components.
Control circuit mainly includes thyristor or IGBT and other trigger control circuit, power supply soft start circuit, overcurrent, overvoltage protection circuit, power supply phase failure protection circuit, etc.
1. Good energy-saving effect
Switching power supply due to the use of high-frequency transformers, conversion efficiency greatly improved, under normal circumstances than the silicon controlled equipment to improve efficiency of more than 10%, the load factor of 70% or less, more than 30% than the efficiency of silicon controlled equipment.
2. High stability of output
Due to the fast response speed of the system (microsecond level), it has excellent adaptability to changes in network power and load, and the output accuracy can be better than 1%. Switching power supply efficiency is high, so the control accuracy is high, which is conducive to improving product quality.
3. Output waveform is easy to modulate
Due to the high operating frequency, its output waveform adjustment is relatively low processing costs, can be more convenient to change the output waveform in accordance with user process requirements. This has a strong effect on the work site to improve work efficiency and product quality of processing.
4. Small size, light weight
The volume and weight is 1/5-1/10 of the SCR plating power supply, which is easy to plan, expand, move, maintain and install.