Reactors cannot be used as transformers. The coil of a reactor has a single winding, while a transformer has two windings.
Reactors are also called inductors. When a conductor is energized, it will generate a magnetic field in a certain space it occupies. Therefore, all electrical conductors that can carry current are inductive in a general sense. However, the inductance of an energized long straight conductor is small and the magnetic field generated is not strong. Therefore, the actual reactor is a wire wound into a solenoid, which is called an air-core reactor; sometimes in order to make this solenoid have a greater inductance, An iron core is inserted into the solenoid, which is called an iron core reactor. Reactance is divided into inductive reactance and capacitive reactance. A more scientific classification is that inductive reactants (inductors) and capacitive reactants (capacitors) are collectively called reactors. However, since inductors were first introduced in the past and were called reactors, So what people call capacitors now is capacitive reactors, and reactors specifically refer to inductors.
Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are primary coil, secondary coil and iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. According to the purpose, it can be divided into: power transformers and special transformers (electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, medium frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers , reactor, transformer, etc.). Circuit symbols often use T as the beginning of the number. For example: T01, T201, etc.