Q:How do ac motor maintenance and maintenance?

Maintenance and maintenance of electric motors: A, 1, in the daily inspection, mainly check the lubrication system, appearance, temperature, noise, vibration and abnormal phenomenon, also check the ventilation cooling system, the condition of sliding friction and fastening situation of parts, do check and record. 2, monthly or regular inspection of the main check grounding device switch, wiring, whether there is loose phenomenon, such as presence of damaged parts, if you have to plan and repair measures are put forward, check the dust accumulation, to timely cleaning, check for damage and aging lead wire and the wiring problem. Test the insulation resistance of the motor winding and record it. In addition to the above mentioned items, the annual inspection of the disintegrating motor will be checked, cleaned or cleaned, and checked for insulation

Q:60W regular ac motor needs to be fast and slow before stopping, how to control?

2 l talk nonsense, what do you do to show me, let me explain, first, to see what is your motor under common law, if the three phase is much more easy, can also be single phase, three-phase can use frequency converter, the acceleration and deceleration, such as 2 s up to full speed, 50 seconds to slow down to 0, no inverter single-phase, individual can be addressed by transformer, time relay, contactor, such as a startup, you give him a full voltage, stops, you give him 80% of the voltage, at 70%, to 60%, so cut down slowly, variable voltage, through the transformer to solve, to a number of different levels of transformer, or more output voltage transformer, as well as by PID controller and SCR, thyristor can adjust voltage, and can also use the sliding resistor to solve, or sliding transformer, or resistance, change the voltage, to reduce the speed, way to many oh

Q:How does the communication motor work?

Tesla coil to form a rotating magnetic field, rotating magnetic field in the cage of alternating flux change, squirrel cage induction electromotive force formation, formation of induced current, induced current in the magnetic field force, produce with rotation, when balance, motor steady work.

Q:Soybean milk machine ac motor or dc motor

Soybean milk machine motor and other small appliances chooses to supply the power source is communication, but into the motor coil is used through commutator after dc, the dc motor also includes excitation coil. It is not economical and unrealistic to use dc motors directly under current power systems.

Q:The three-phase ac motor can be divided into which classes

Classification according to the use Different applications of the three-phase asynchronous motors can be divided into drivers and controlling power. The motive power of driving power is divided into the motive of electric motor, electrical motor and other general motors. The motor is also divided into stepper motors and servo motors. Four, according to the structure of the rotor The motor is different from the structure of the rotor, which can be divided into cage induction motor and rotor induction motor.

Q:The ac motor with more than one kilowatt will be activated by the launcher

If just use ordinary motor (do not include the power plant, industrial production using motor), you can refer to: civil, public power grid points directly power supply transformer and village power supply two kinds, the former is 11 kw allows direct start the following, which is 15 kw In fact, there are four factors to consider: When the motor starts, the voltage on the distribution bus at various levels meets the normal requirements of other devices; Mechanical energy is able to withstand the shock torque when the motor is fully pressed. The motor itself can withstand the shock of full pressure starting. There is no special requirement for motor start.

Q:Is the ac servo motor self internal speed control

A single servo motor can't work, but a servo controller can tune its own internal controls. General servo motor is the corresponding servo controller. Ac servo motor can be connected to the microcontroller, when the microcontroller will be sent to the motor speed value, servo motor will be done in its own internal speed, compare actual value with the given value and the rate of change in. A single servo motor can't work, and unlike the normal three-phase asynchronous motor, the power is turned. The servo controller is fitted with the servo motor system, the internal coder is a closed loop control, the speed is accurate, the torque is large and the resolution is high. The actuator input pulse, or the analog quantity, the serial port communication, can control the movement state of the servo motor. The frequency conversion is mainly the speed adjustment, while the servo is mainly position control.

Q:Why does ac power connect capacitor

A single phase motor is used to start a three-phase motor for the use of reactive power compensation

Q:What is the difference between a brushless ac motor and a brushless dc motor?

Single-phase ac motors and dc motors: the difference between rotor and stator single-phase dc motor is a permanent magnet (or equivalent of a permanent magnet, namely: fixed polarity does not change), and the single phase ac motor rotor is a magnet, also do not need electricity normally (cage). If a single phase ac is connected to a brushless dc machine, no power transfer is required. Other: no brush, brush the difference: the brushless motor is a special kind of dc motor, it USES built-in sensors electronic commutation on the method of the electronic commutator, brushless motor is mainly in order to eliminate the wear and tear of the brush, and brush contact generated noise. A brushless motor, coil and the commutator rotating, magnetic steel and carbon brush don't turn, is the direction of the coil current changes with the motor rotation phase switcher and brush. A brush motor has a carbon brush, a brushless motor without a carbon brush

Q:Dc motor input direct current, after the commutator, does it change to alternating current?

This. Don't know if you have seen direct current (dc) and alternating current waveform figure. Ac three phase similar to sine and cosine curve, and the dc voltage to a straight line, stable. Alternating current (ac) can be used to direct drive motor, because of the ac voltage is constantly changing, cause the direction of the magnetic field is constantly changing. But the direct current (dc) must pass the commutator can cause changes in the direction of the voltage, so that the motor rotation, this time you go to see a waveform diagram, is then a concave, convex, instantaneous changes, the current more precisely, so the general accuracy is higher, all like to use dc, especially for dc micro-motor.