Fan start capacitor connection detection method

Household electric fans use single-phase AC motors, so only one live wire and one neutral wire can work normally, but in order to protect the motor, an additional electric fan starting capacitor needs to be installed, which can avoid the time of starting The winding is burnt out because of excessive current. When installing this capacitor, you need to test the motor first. In addition, there are three wire ends on the motor. Set the multimeter to the electrical barrier and measure the resistance between the wires. The two wires with the largest resistance are where the capacitor is installed.

Fan start capacitor Fan starting capacitor connection method

The correct connection method of the electric fan starting capacitor, the electric fan is generally a non-polar capacitor, so there is no difference between a positive connection and a reverse connection, and the standardized accessories do not need to be welded, just screw it in the original way. . However, you must pay attention to the specifications when buying a new capacitor. Choose the same model. Too big or too small may cause new problems, especially if the capacitor is too small, it will not be able to start and protect it. When the current is large, the fan click may be completely scrapped.

Precautions for fan starting capacitor connection

The connection method of the electric fan starting capacitor is very simple, so if you can buy the accessories, the user can complete the replacement. However, people without professional training must pay attention to safety when repairing. First of all, the power must be completely cut off before the operation, and must not be operated with power. Also, do not connect the neutral wire and the live wire reversely. For electric fans, the neutral wire and live wire reverse connection can also work normally, but the fan will still be charged after it is turned off, which will increase the risk of electric shock and leakage.