The voltage regulator that can adjust the voltage to the load is a voltage regulator. The unregulated grid distribution voltage and the smooth and steplessly regulated load voltage within a certain range are all transformed by it.
Thyristor voltage regulator is also called "thyristor power regulator", "silicon controlled power regulator" or simply "power regulator". "Thyristor" also known as "SCR" (SCR) is a four-layer three-terminal semiconductor device. Connect it between the power supply and the load, and match the corresponding trigger control circuit board to adjust the voltage applied to the load. , Current and power.
Electric column type voltage regulatorThe electric column type voltage regulator is a contact type auto-voltage regulating transformer. It is an electrical equipment that smoothly and steplessly adjusts the load voltage within the rated voltage range. This series of products have optimized structural design, adopt high-quality electromagnetic materials and apply British imported A-type brushes in key voltage adjustment parts. Coupled with strict quality management, it has the characteristics of small size, light weight, small waveform distortion, low noise, low air loss, low temperature rise, smooth voltage regulation and long service life.
Auto voltage regulatorIt is essentially an autotransformer with continuously adjustable voltage. The core has two types: ring type and column type. The column core is similar to a general transformer and is made of silicon steel sheets; the ring core is made of silicon steel strips. For small-capacity auto-voltage regulators of 20 kVA and below, ring cores are mostly used; for those with a capacity of more than 20 kVAs, cylindrical cores are used. In the structure of the toroidal auto-voltage regulator, the winding is wound on the toroidal core with a single layer of insulated copper wire. The surface of the coil part is polished away from the insulating layer to form a smooth plane, and a brush made of electrochemical graphite is in contact with it. The brush can rotate and slide on the surface of the wire by means of the handwheel, thereby changing the output voltage. If the current capacity is greater than 10A, two or more brushes can be connected in parallel.
Auto-coupled voltage regulators are generally made of self-cooling, dry type. In occasions where the capacity is particularly large or the use environment is special, it is also made into an oil-immersed self-cooling type. Three ring-type single-phase auto-voltage regulators can be assembled coaxially to form a three-phase auto-voltage regulator.
Moving coil regulatorThe structure and principle of the moving coil voltage regulator are similar to the transformer. It uses a moving coil that short-circuits itself on the same iron core and moves up and down along the iron core column to change the impedance and voltage distribution of the other two coils with the same number of turns but in anti-phase series to adjust the output voltage.
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