1. What is a power controller
A power controller refers to a device that controls the electrical power of a certain range of lines. Function: Limit the overload power consumption of the line. It is often used in university dormitory circuits to control power usage and cut off power when overloaded. The power factor controller refers to a device that automatically tracks the power rate of the line and switches the power capacitor accordingly for reactive power compensation. Its function is to control the amount of capacitor input to improve the line power factor.
2. ThyristorPower controller Application fields
Thyristor power controllers can be widely used in the regulation of voltage, current, and power in various industrial fields, and are suitable for resistive loads, inductive loads, and the primary side of transformers. The main applications are as follows:
1. Temperature control using nickel-chromium, iron-chromium-aluminum, far-infrared heating elements, silicon-molybdenum rods, silicon-carbon rods, molybdenum wires, graphite, platinum drain plates, etc. as heating elements.
2. Temperature control of salt bath furnace, power frequency induction furnace, quenching furnace and molten glass.
3. Primary side control of rectifier transformer and electric furnace transformer.
4. Vacuum coating equipment, wire drawing machine transformer primary side, electrostatic implantation transformer primary side, etc.
5. Speed control of three-phase torque motor.
6. Stepless smooth adjustment of voltage, current, power, lighting, etc.
7. Constant voltage, constant current and constant power control.
Main application areas: salt bath furnace, power frequency induction furnace, quenching furnace temperature control; heat treatment furnace temperature control; glass production process temperature control; diamond press heating; high-power magnetization/demagnetization equipment; semiconductors Industrial boat evaporation source; aviation power voltage regulation; vacuum magnetron sputtering power supply; textile machinery; crystal stone production; powder metallurgy machinery; tunnel electric kiln distributed temperature control system; color picture tube production equipment; metallurgical machinery and equipment; AC and DC motor drive ; Petrochemical machinery; stepless smooth adjustment of voltage, current, power, lighting, etc., constant voltage, constant current, constant power control and other fields.
3. Characteristics of thyristor power controller
1. Available 380V power supply frequency is 50HZ/60HZ grid, special voltage requirements can be customized.
2. It adopts phase-shift triggering method and is suitable for various load types such as resistive load, inductive load, and primary side of transformer.
3. Can directly interface with the output signals of various domestic and foreign control instruments and microcomputers.
4. One instrument can control multiple trigger boards at the same time.
5. It has a soft start function to reduce the impact and interference on the power grid and make the main circuit safer and more reliable.
6. The symmetry of the pulse output is less than 0.1 degrees.
7. Wide synchronization voltage range.
Constant voltage feedback: When the power supply voltage fluctuates ±10% and the load impedance changes 10 times, the load voltage remains constant and the output voltage has a linear relationship with the control signal.
Constant current feedback: When the power supply voltage fluctuates ±10% and the load impedance changes 10 times, the load current remains constant, and the output current has a linear relationship with the control signal.
Constant power feedback: When the power supply voltage fluctuates ±10% and the load impedance changes 10 times, the load power remains constant, and the output power is linearly related to the control signal.
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