What size 3-phase motor does the cutting machine need to be powerful?

Hello, according to the cutting situation, san xiang dian ji 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 current three-phase alternating current, a rotating magnetic field will be generated. The magnetic field cuts the rotor winding, thereby generating an induced current in the rotor winding (the rotor winding is a closed path),

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The current-carrying rotor conductor is under the action of the rotating magnetic field of the stator, an electromagnetic force will be generated, thereby forming an electromagnetic torque on the motor shaft, driving the motor to rotate, and the direction of rotation of the motor is the same as the direction of the rotating magnetic field.

Chinese Pinyin: dianji English: [electrical machines]

Three-phase motor

Generally refers to all machines capable of converting mechanical energyin electrical energy and electrical energy. 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.

Function

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 usethermal energy, hydraulic energy, 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 food machinery, fans and various mechanical equipment.

I hope this helps you.

Rated current of 11kw three-phase motor:

I＝P/1.732/U/cosφ/η＝11/1.732/0.38/0.87/0.89≈22( A)

If the lead wire from the motor to the switch is short, there is no need to consider the voltage drop caused by the resistance of the wire. The purpose is only to carry the safe current of the wire. The safe current carrying capacity of small section copper core wire is about 6A per square meter, 4 square meters of copper core wire should be used.

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 conductor will generate an electromagnetic force under the action of the rotating magnetic field of the stator, thus forming a celectromagnetic force on the motor shaft, driving the rotation of the motor, and the direction of rotation of the motor is the same as the direction of the rotating magnetic field.

Chinese PinyinSound: 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 engine is a stFully enclosed squirrel cage structure cooled by external fan.

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, 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 IP44 shell protection level, cooling methodt is IC411, the rated voltage is 380V, the rated frequency is 50Hz, and are widely used in food machinery, 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).

3. He hasadopts box-shaped structure to achieve 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 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. Cooling air enters through the axial sides of the motor top cover, notse through the inside of the engine and is evacuated by the engine. upper cover along the radial sides.