SCR power regulator: it is a kind of power control appliance based on thyristor (power electronic power device) and with intelligent digital control circuit as the core. It is referred to as thyristor power regulator, also known as thyristor power regulator, thyristor regulator, thyristor regulator, thyristor regulator, power regulator, power regulator and power controller. It has many advantages, such as high efficiency, no mechanical noise and wear, fast response, small size, light weight and so on. Thyristor Power Regulator realizes precise temperature control by controlling voltage, current and power. And with its advanced digital control algorithm, it optimizes the efficiency of electric energy use. It plays an important role in saving electric energy.
Thyristor power regulators are widely used in the following fields:
1. Electric furnace industry: annealing furnace, drying furnace, quenching furnace, sintering furnace, crucible furnace, tunnel furnace, melting furnace, box-type electric furnace, well-type electric furnace, melting furnace, rolling electric furnace, vacuum electric furnace, trolley electric furnace, quenching electric furnace, aging electric furnace, hood electric furnace, atmosphere electric furnace, oven experimental electric furnace, etc.
2. machinery and equipment: packaging machinery, injection molding machinery, thermal shrinkage machinery, extrusion machinery, food machinery, tempering equipment, plastic processing and infrared heating.
3. Glass industry: glass fiber, glass forming, glass melting, glass printing, float glass production line and annealing tank.
4. Automobile industry: spray drying and thermoforming.
5. Energy-saving lighting: tunnel lighting, street lighting, photography lighting and stage lighting.
6. Chemical industry: distillation and evaporation, preheating system, pipeline heating, petrochemical industry and temperature compensation.
7. Other industries: salt bath furnace, power frequency induction furnace, quenching furnace temperature control, heat treatment furnace temperature control, diamond press heating, high-power magnetizing/demagnetizing equipment, aviation power supply voltage regulation, central air-conditioning electric heater temperature control, textile machinery, crystal stone production, powder metallurgy machinery, color kinescope production equipment, metallurgical machinery equipment, petrochemical machinery, smooth adjustment of lighting, constant voltage, constant current and constant power control and other fields.
Basic function of SCR power regulator:
Three-phase SCR power regulator uses digital circuit to trigger SCR to realize voltage regulation and power regulation. The voltage regulation adopts phase-shifting control mode, and the power adjustment has two modes: fixed-period power adjustment and variable-period power adjustment. The control board has the functions of phase-locked loop synchronous circuit, automatic phase discrimination, phase-missing protection, power-on slow start, slow turn-off, radiator overtemperature detection, constant current output, current limit, overcurrent protection, serial working status indication and so on. Features of the control panel: 1-bit A/D, high output linearization degree and low output control point.
SCR power regulator is matched with intelligent PID regulator or PLC with -5V and 4-2mA; It is mainly used for heating control of industrial electric furnace and soft start and energy-saving operation control of large fan and water pump.
the load types can be three-phase resistive load, three-phase inductive load and three-phase transformer load; Three-phase load can be center grounded load, center ungrounded load, inner triangular load and outer triangular load.