1. How much is the ceiling fan capacitor?
Anhui Zhongrong Electronics, a supplier of high-quality capacitors. The bulk purchase price of ceiling fan capacitors is generally around 2 yuan.
2. What is the capacitance of the ceiling fan?
The starting capacitance of ceiling fan is generally 2~2.5uF, and that of common floor fan is generally 1.5uF (low power).
It's about strength and speed.
It's best to find out what the original match is. Under normal circumstances, the larger the capacity, the faster the rotation speed and the higher the temperature rise. If the capacity exceeds too much, it is easy to get hot.
Third, how to wire the ceiling fan
The disassembly estimation of ceiling fan is divided into two parts: one is the main body of ceiling fan, and the other is the starting capacitor of ceiling fan. First of all, the ceiling fan is cleaned, and the old ceiling fan has accumulated a lot of dust, which is also conducive to subsequent maintenance. Cleaning the ceiling fan is mainly to wash the fan blades once, which can properly clean the dirt; Disassemble the motor, add a little lubricating oil to the bearing and rotating part, and then tighten it. Check that the starting capacitor provides the starting torque when restarting. That is, for phase separation, the purpose is to make the currents in the two Rao groups have a phase difference close to 90 ",thus generating a rotating magnetic field. In three-phase electricity, the current between each two phases has its own phase difference, so there is no need to split the phase.
Capacitive induction motor has two windings, namely starting winding and running winding. The two windings are 90 degrees apart in space. A large-capacity capacitor is connected in series with the starting winding. When the running winding and the starting winding pass through a single alternating current, the current in the starting winding leads the current in the running winding by 90 degrees in time and reaches the maximum value first. Two identical pulsed magnetic fields are formed in time and space, thus generating a rotating magnetic field in the air gap between the stator and the rotor. Under the action of rotating magnetic field, induced current is generated in the rotor of the motor, and the interaction between the current and rotating magnetic field generates electromagnetic torque, which makes the motor rotate.
Before the ceiling fan is removed, the electricity will hum, so check whether the capacitor is damaged first. It was measured with a multimeter, and it was determined that the capacitor was broken. The reason was found, so I went to repair the appliance immediately and bought a new capacitor. (The original capacitance of this ceiling fan is 2.2μ m, but the maintenance department doesn't have it, only 2.5 μ m. If you change it, it won't have much impact anyway. )? Installation: There was a problem when installing the ceiling fan. Because I didn't pay attention when I removed it, I just removed it with my old brain, so I couldn't connect it in the wiring. I have to go to some trouble to measure it myself.
Judge the male electrode. The ceiling fan leads out three wires, and check the quantity between the two wires with a multimeter. If there is no problem with the coil, the wire with the greatest resistance is the male electrode of the primary and secondary windings.
(? 2) Judge the main winding and the auxiliary winding. Measure the anode electrode and the other two terminals with a multimeter. The main winding resistance is small, and the auxiliary winding resistance is large.
(? 3) The main winding and the auxiliary winding are connected to the zero line, the other end of the main winding is connected to the live wire, the other end of the auxiliary winding is connected to the capacitor in series, and the other end of the capacitor is also connected to the live wire.
(? 4) Although the fire protection and neutral wires are connected reversely, they can operate normally, but they do not meet the electrical specifications. Note: Generally, the three lead wires of ceiling fan motor are red, blue (green) and black respectively, and the two wires of capacitor are connected to red and blue respectively, then the red wire is connected to the phase wire of switch or governor, and the black wire is connected to the zero wire. If the colors are indistinguishable, a multimeter can be used. Measure the resistance between two of the three lead wires respectively. If there is nothing wrong with the coil, the larger resistance between the two wires is the sum of the other two smaller resistances. Because the tails of the two coils are connected together. (For example, the red-blue resistance mentioned above is large, which is equal to the sum of the red-black resistance and the blue-black resistance. At this time, you can tell which is the bus line. The male * * * line is connected to the zero line, and the other two lines are connected to the capacitor. If one fuse is reversed, please replace the other fuse.
Ceiling fan capacitor belongs to an important classification of capacitor products. As can be known from the name, it is mainly used in ceiling fan products and plays an important role in it. Then the information analyzed and introduced above includes the price and size of ceiling fan capacitor, as well as the text and picture contents of wiring steps and methods. You can learn about the professional knowledge of ceiling fan capacitance.