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吊扇調速的開關常用有兩種，一種是電感的，一種是電容的，兩者都是通過選擇接入電路的電感大小跟電容大小來達到調速目的。吊扇是通過調壓降低電流，控制轉速的，轉換檔位改變電源供給電路的電壓電流大小來達到改變電機速率，從而改變風扇的速度。線圈硅片的調速器就是一個電感，在交流電路上相當于電阻，分掉部分電壓電流，新的調速器是雙向可控硅，斬波降壓的，幾乎不耗電。測試開關好壞相對簡單的方法就是直接拆下調速器控制線直接接電源，直接接電源就是沒有通過調速器調節轉度就是快的檔位，如果轉速提升了那么說明調速器損壞更換新的，即可反之則沒問題
There are two kinds of switch on the ceiling fan, one is inductance and the other is capacitance. Both of them can achieve the speed of speed by selecting the size of the inductor and the capacitance of the access circuit. The ceiling fan reduces the current by adjusting the voltage and controls the speed. The transfer position changes the voltage and current of the supply circuit to change the speed of the motor and changes the speed of the fan. The governor of the coil silicon chip is an inductor, which is equivalent to the resistance in the AC circuit, and divides the partial voltage and current. The new governor is bidirectional thyristor, chopping the wave, and almost no power consumption. The relatively simple way to test the switch is to directly dismantle the direct power supply of the governor control line. The direct power supply is not through the governor to adjust the rotation degree is the fast gear. If the speed is raised, then the governor damage and replacement of the new, then the opposite is no problem.
吊扇由于有軸承，所以需要加油，可一年或兩年加一次。加油時先拆下風扇取出轉子，然后用汽油洗凈軸承上的油垢，潤滑油選用優質的“黃油”，用手撥動扇葉如稍轉幾圈即停下，則需加油，如能轉動十多圈后慢慢停下，則表示無需加油。
Because of the bearing, the ceiling fan needs refueling, which can be added once a year or two years. When refueling, remove the fan out of the rotor, and then use gasoline to clean the bearings on the oil scale, lubricating oil selection of high quality "butter", use the hand to move the fan leaves if a few circles to stop, then the need to refueling, if the more than 10 circles can be slowly stopped, that means no refueling.