Three-phase motor connected to 220V:
After disassembling the motor junction box, if the winding is bundled with a wire end with three wires twisted together, this motor is a Y-type motor. , just separate the joints that are screwed together, use a multimeter to distinguish the three windings, and then connect the head and tail in series to change it into a delta connection. If you can't find the wire end, you can't change it. The 380 volt winding is connected to 220 volts. Even if the motor can run, it is of little use unless a step-up transformer is used to boost the voltage.
Extended information
Function
1. The motor is represented by the letter "G" in the circuit. Its main function is to convert mechanical energy into electrical energy. Currently, the most commonly used method is to use thermal energy, water energy, etc. to drive the generator rotor to generate electricity. As wind power generation technology becomes increasingly mature, wind power is slowly entering our lives.
2. YS series three-phase motors are designed and manufactured in accordance with national standards. They have the characteristics of high efficiency, energy saving, low noise, small vibration, long life, easy maintenance, and large starting torque. They adopt Class B insulation and outer casing. The protection level is IP44, the cooling method is IC411, the rated voltage is 380V, and the rated frequency is 50Hz. It is widely used in food machinery, fans and various mechanical equipment.
Structure
Three-phase motors allow direct starting at full voltage. If the load torque is not large, a reduced-voltage starting method can also be used. The starting torque of the motor during reduced-voltage starting is roughly the same as that of the motor. The voltage decreases in proportion to the square of the voltage. If the moment of inertia (J) of the load machine is within a certain range, the motor is allowed to start twice in a cold state and once in a hot state.
This series of motors has a frequency of 50Hz and voltages of 6kv and 10kv. Its characteristics are as follows:
1. Fully complies with national standards (GB/T13957-92).
2. The motor efficiency is increased by an average of 2% compared with old products.
3. It adopts box-shaped structure to achieve zero-meter layout, which is convenient for transportation, installation, repair and maintenance. It saves users' civil construction investment costs and can flexibly change the ventilation protection type of the motor according to user needs.
Reference materials:
Baidu Encyclopedia-Three-phase motor