Friday, 10 April 2015

Capacitor type fan controls

According to size, electronic regulators are classified as (i) switch type and (ii) socket type. Further, there are two common types of electronic fan regulators: (i) TRAIC based fan regulator and (ii) Capacitive type fan regulator. The slow speed is obtained by using the 4. F capacitor (purple, P ), the medium speed is obtained by using the 2. With the switch in the Low seting, only Cis connected in the circuit.

When the switch is set to Medium or High, either Cor Cwill be connected in parallel with C giving you a .

At stall most motor types draw maximum current.

To know about the working process of regulators. It is very similar to resistive control but less . Most capacitor type controls can only operate one fan per control , so multiple fans require multiple controls. This is why capacitor values are selected to suit the fan used.


The range comprises of Three Speed ( Capacitive ) Controllers and Continuous Speed Electronic Controllers. These are suitable for use with all “Airflow” Ceiling Sweep Fans and Exhaust Fans. Sometimes known as “ Capacitive ” controllers , this type of fan control offers three discrete speed . Instead of catching fire or bursting and oozing film,these capacitors fail safely.


In the lower hub of the ceiling fan where the capacitor and switches are locate several wires come down from higher in the fan. For the speed switch and capacitor , the important wires are the black and red ones. Whoever first designed this type of circuit was quite clever. Observation has informed that with this circuit design, and this particular set of three capacitors , a. The VA range is an electronic type speed- controller which provides infinite variation of fan speed from 1 down to approximately of full speed.


This motor is widely used in ceiling fans due to various advantages over other types of motors.


It is low cost, low maintenance, and has direct connection to the AC power source. A quiet motor speed controller is disclosed which varies an amplitude of an AC voltage signal provided from an AC source to drive an AC motor. A second impedance is electrically connectable with the first . This in slowing the fan down by limiting the current to the motor with different values of capacitance.


They usually have about four speed settings. They seem to work well for ceiling fans , but may only work well for 1 and maybe desk fans. The ordinary bulky types of ceiling fan dimmer switch incorporate the above method to keep the manufacturing costs to the minimum.


But this principle of obtaining speed.


As long as the capacitor remains charge the triac in the circuit remains switched ON and keeps the fan operative.

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