What is the use of regulator in fan?

A Fan Regulator, as the name suggests, regulates or controls the speed of the fan motor. Before dealing with the fan regulator, a brief discussion about the fan motor is necessary, as the main purpose of the regulator is to control the speed of the fan motor.

How does a regulator work?

Pressure regulators reduce a supply (or inlet) pressure to a lower outlet pressure and work to maintain this outlet pressure despite fluctuations in the inlet pressure. The reduction of the inlet pressure to a lower outlet pressure is the key characteristic of pressure regulators.

How does a regulator fail?

Excessive flexing of the metal diaphragm can cause a radial crack, which allows gas to escape to the atmosphere through the vent hole in the bonnet. The second and perhaps the most common type of regulator failure is the internal leak, sometimes called creep or crawl.

How does a fan voltage regulator work?

The regulator has spools of wire with different amounts of resistances. When you set the knob at a particular position, you include a certain resistance in series with the fan. A series connection implies the resistance is in line with the fan. This reduces the voltage drop across the fan and its speed to your desired level.

How does a capacitor regulator work?

The idea behind a capacitor regulator remains the same, which is to adjust the voltage across the motor of the fan. Now, when you increase the capacitance, the voltage across the capacitor decreases but that across the fan motor increases. Accordingly, the speed of the fan increases.

How does a solid state fan control work?

Solid-state controls change the level of power in the fan motor to control the speed of the fan. For instance, when you switch from medium to high on a solid-state fan, the speed control mechanism increases the power of the motor. Beside above, is fan regulator a rheostat?

How does a triac regulator control the speed of a fan?

This gate current controls the current flowing through the TRIAC, consequently controlling the power fed to the motor of the fan. Thus, the speed of the motor (fan) is controlled. This type of regulator offers stepless speed control. They are expensive than resistive type regulators.