Yes, but it depends on the power of your engine. If it is 3 kW or less, it is not necessary because the efficiency of single-phase motors is low.
Check if your motor has a star connection. If so, first replace it with a delta connection to accommodate 220V voltage, then add a capacitor (16-32 microfarads, 450V, paper dielectric capacitor). and connected to the motor; the specific operation is to connect two phases of the motor to the power supply, one end of the capacitor to the remaining terminal of the motor and the other end of the capacitor to any phase of the power supply. ; if the reverse reverses the phase to which the capacitor is connected and the supply to any phase.
A three-phase motor means that when the three-phase stator windings of the motor (each phase differs by 120 degrees of electrical angle) are powered by three-phase alternating current. A magneti fieldthat rotating will be generated, which cuts the rotor winding, thereby generating an induced current in the rotor winding (the rotor winding is a current-carrying closed rotor conductor). Under the action of the rotating magnetic field of the stator, it will generate electromagnetic force, thereby forming an electromagnetic force on the motor shaft, which drives the motor to rotate in the same direction as the rotating magnetic field. can convert mechanical energy into electrical energy and electrical energy into mechanical energy. It specifically refers to generators, electrical machines and electric motors based on the law of electromagnetic induction which achieves the conversion or transmission of electrical energy. > Three-phase motor
An electric motor is also called (commonly called a motor), with the letter "M" in the circuit (the old standard uses "D") for its main function. is to generate a motor torque andserve as a power source for electrical appliances or various machines. The motor is a fully enclosed, fan-cooled squirrel cage structure. 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 push the generator rotor. produce electricity. With the development of wind power generation technology, as it matures, wind power is slowly entering our lives.
YS series three-phase motors are designed and manufactured in accordance with national standards. Features of high efficiency, energy saving, low noise, low vibration, long life, easy maintenance and good starting speed. It has the characteristics of high torque, using ae class B insulation, the protection degree of the shell is IP44, the cooling method is IC411. the rated voltage is 380V, the rated frequency is 50Hz, and it is widely used in food machinery, fans and various mechanical equipment.
Structure
Three-phase motors allow direct starting. full voltage. If the load torque is not large, a reduced voltage starting method can also be used. When starting at reduced voltage, the motor starting torque decreases approximately in proportion to the square of the voltage. The inertia value (J) of the load machine is within a certain range, the motor is allowed to start twice when cold and once when hot
The frequency of this series of motors is of 50 Hz and. the voltage is 6kv. There are two types of 10kv, with the following characteristics:
1. Fully compliant with national standards (GB/T13957-92)
2. is 2% higher on average than old products
3.The box-shaped structure enables zero-meter layout and is convenient for transportation, installation, repair and maintenance. It allows users to save civil construction investment costs and can flexibly change the motor ventilation protection type according to user needs.
4. The stator winding adopts Class “F”
5 solvent-free full immersion insulation system. The motor adopts an end cover type sliding bearing and adopts “air seal” and float. to prevent oil leaks. Structure of the labyrinth device
6. The three-phase motor adopts cast aluminum or copper rotor and works reliably.
Ventilation and protection type: Motor ventilation adopts radial self-ventilation method. The air of reCooling enters through the axial sides of the motor top cover, passes through the inside of the motor and is exhausted by the motor. upper cover along the radial sides.
11kw three phase motor, what wire size is suitable? How much current? It is necessary to note the detailed calculation process.
Calculation formula: n=60f/P
Engine power is approximately equal to water pump power minus water pump efficiency less engine efficiency. The motor efficiency is generally 0.85, the corresponding motor power is 5.5 kW, 15 kW, and the rotation speed is 2900. Then the motors are 5.5 kW-2P and 15 kW respectively. -2P. The rotation speed of the motor = frequency × 60S÷ (. number of motor poles ÷ 2)
The asynchronous motor starts by YB, the squirrel cage type is YR, the increased safety type is YA, then the height of the center and the number of poles For example. , YR400-4 560 6KV, the center height of the squirrel cage asynchronous motor is 400mm, the number of poles is 4, the rated power is 560kW, and the rated voltage is 6KV.
Detailed information
The three-phase motor has a frequency of 50 Hz and a voltage of 6kv and 10kv. Its characteristics are as follows:
1. Fully compliant with national standards (GB/T13957-92).
2. Motor efficiency is increased by an average of 2% compared to older products.
3. It adopts a box-shaped structure to achieve a zero-meter layout, which is convenient for transportation, installation, repair and maintenance. It allows users to save civil construction investment costs and can flexibly change the motor ventilation protection type according to user needs.
4. The stator winding adopts pa insulation systemr full immersion without class “F” solvent.
5. The motor adopts an end cover sliding bearing and adopts "air seal" and floating labyrinth device structure to prevent oil leakage.
6. The three-phase motor adopts cast aluminum or copper rotor, which ensures reliable operation.
Ventilation and protection type: Motor ventilation adopts radial self-ventilation method. Cooling air enters through the axial sides of the motor top cover, passes through the inside of the motor and is exhausted through the motor. upper cover along the radial sides.
Baidu Encyclopedia - Three-phase motor
Baidu Encyclopedia - Motor series
Rated current of three-phase motor 11 kW: < /p >
I＝P/1.732/U/cosφ/η＝11/1.732/0.38/0.87/0.89≈22(A)
If onlyIf the lead wire from the motor to the switch is short, it it is not necessary to taketake into account the voltage drop caused by the resistance of the wire. This is only about the safe current carrying of the wire. The safe current carrying capacity of the small section copper core. The wires are approximately 6A per square meter. It is recommended to use 4 square meters of copper core wire.
A three-phase motor means that when the three-phase stator windings of the motor (each phase differs by 120 degrees in electrical angle) are supplied with three-phase alternating current, a rotating magnetic field will be generated, and the rotating magnetic field will cut off the rotor winding, thus an induced current is produced in the rotor winding (the rotor winding is a closed path).
The current-carrying rotor driver will generate an electromagnetic force under the action of the rotating magnetic field of the stator, thereby forming an electromagnetic torque on the motor shaft, causing the motor to rotate, and the direction motor rotationis the same as the direction of the rotating magnetic field.
Chinese Pinyin: dianji English: [electrical machines]?
Generally refers to all machines that can convert mechanical energy into electrical energy and electrical energy into mechanical energy. Specifically refers to generators, electrical energy machines and electric motors. It is an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction.
An electric motor is also called (commonly called a motor) and is represented by the letter "M" ("D" in the old standard) in the circuit. Its main function is to generate motor torque and serve as a power source for electrical appliances or various machines. The motor is a fully enclosed, external fan cooled squirrel cage structure.
The engine is shown par 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, hydropower, etc. to drive the rotor of the generator to produce electricity. As wind power generation technology becomes more and more mature, wind power. gradually enters our lives.
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, low vibration, long life, easy maintenance and high starting torque. They adopt class B insulation and have shell protection level IP44, the cooling method is IC411, the rated voltage is 380V, the rated frequency is 50Hz, and are widely used in thes food machines, fans and various mechanical equipment.
Three-phase motors can be started directly at full voltage. If the load torque is not large, a reduced voltage starting method can also be used. When starting at reduced voltage, the starting torque of. the motor decreases approximately in proportion to the square of the voltage. If the value of the moment of inertia (J) of the load machine is within a certain range, the motor is allowed to start twice when cold and once when hot. .
This series of motors has a frequency of 50 Hz and voltages of 6kv and 10kv. Its characteristics are as follows:
1. Fully compliant with national standards (GB/T13957-92).
< p>2. Motor efficiency is on average 2% higher than older products3. It adopts a box-shaped structure to achieve a zero-meter layout, which is convenient for transportation,installation, repair and maintenance. It allows users to save civil construction investment costs and can flexibly change the motor ventilation protection type according to user needs.
4. The stator winding adopts Class “F”
5 solvent-free full immersion insulation system. The motor adopts end cover sliding bearings to prevent oil leakage.Use "air seal" and floating labyrinth device structure
6. The three-phase motor adopts cast aluminum or copper rotor, which ensures reliable operation.
Ventilation and protection type: Motor ventilation adopts radial self-ventilation method. Cooling air enters through the axial sides of the motor top cover, passes through the inside of the motor and is exhausted through the motor. top cover along the sidesradials.