Siemens ILE0001 Series Motor

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Q:What is the difference between the excitation winding and armature winding of AC motor?
The motor defines the armature as the main power loop of the motor. You just have to think about the power of the stator circuit or the power of the rotor circuit. That big one is the armature". Power is voltage X current. Only synchronous generator and synchronous motor have excitation winding and armature winding. In general, AC induction motors do not have field windings. The asynchronous motor is divided into two major categories, squirrel cage and winding. The stator winding structure is the same. The squirrel cage rotor is a squirrel cage, and the winding rotor is a coil (which can be changed by an external device to change the rotor impedance). The so-called armature winding is the main power circuit of the motor". Rotor and stator coil which power is larger, which is "armature", needless to say, most of the stator coil is armature winding".
Q:How to judge the quality of three-phase AC motor?
1, appearance inspection2, respectively measuring U1U2, V1V2, W1W2 resistance, three-phase resistance value should be equal, three-phase maximum difference should not exceed 2% of the average value3, if you use a multimeter, it's almost equal4. Monitor the current and motor temperature after idle running
Q:Please exchange the motor. Is it possible to adjust the speed with a governor?
At present, the most preferential speed regulation mode is frequency converter with the best performance, while the output torque is constant at low speed.
Q:Does the AC motor have carbon brushes?
Its electrical conductivity, thermal conductivity and lubrication are good, and have a certain mechanical strength and reversing spark instinct. Almost all motors use carbon brush, which is an important component of the motor.
Q:The similarities and differences between DC brushless motor and AC motor
The stator windings of Brushless DC motor is connected in star, his permanent magnet rotor is made and a rotor position sensor for detecting the rotor position feedback to the controller, the controller is a DC power supply, according to the position sensor signal feedback respectively so that the stator winding is energized, the rotating magnetic field, the mechanical characteristics of Brushless DC the motor is hard.
Q:Is permanent magnet synchronous motor AC servo motor?
First of all, the classification of motor: servo motor is divided into AC servo and DC servo, in which AC servo and synchronous and asynchronous points. Permanent magnet synchronous motor (PMSM) is a kind of synchronous AC servo motor.
Q:What's the difference between asynchronous and synchronous AC motors?
The two main difference in the reactive power, synchronous motor, and reactive power can be issued, you can also absorb the collection; asynchronous motor can only absorb reactive power. The synchronous motor turns to synchronize with the power grid. The speed of the asynchronous motor is generally slightly lower than the speed of the grid. Synchronous motor speed and AC power 50Hz synchronous power, that is, 2 pole motor 3000 turn, 4 pole 1500, 6 pole 1000, etc., asynchronous motor speed is slightly behind, that is, 2 poles, 2880, 4 poles, 1440, 6, pole 960, etc..
Q:What are the advantages of a DC motor and an AC motor?
The DC motor consists of two parts, stator and rotor, in which there is a certain air gap. The main feature of the structure is that it has an armature with a commutator. The stator of a direct current motor consists of a machine base, a main magnetic pole, a reversing magnetic pole, a front and back end cover, and a brush rack. The main magnetic pole is the main component of the air gap magnetic field of the DC motor. It is composed of a permanent magnet or a laminated core with a DC exciting winding. The rotor of the DC motor armature, the commutator (also called commutator) and shaft components. The armature is composed of two parts: armature core and armature winding. The armature core is made up of silicon steel sheets, and the slots are evenly distributed at its outer circle, and the armature windings are embedded in these slots. A commutator is a mechanical rectifier. The sheet is made of a metal clip or plastic to form a whole after it is folded into a cylindrical shape. Each commutator piece is insulated from each other. The quality of commutator has a great influence on the operation reliability.
Q:Why is DC motor wider than AC motor? High speed regulation accuracy? How do you know?
The speed regulation of DC motor usually depends on changing the voltage at the two ends of the armature. The speed and voltage are basically linear, so the speed regulation accuracy is high. However, due to the brush limit, the DC power is generally not largeThe speed change of an AC motor depends on changing the pole number or changing the frequency, while the mechanical characteristic is related to the rotor resistance, armature current and so on. The ancient and lower precision, to achieve servo control should be introduced into the closed loop control system.
Q:Why is AC motor control more difficult than DC?
Motor control, generally refers to speed regulation".AC motors are different from the mechanical characteristics of direct current motors,The mechanical characteristics of the DC motor are 1 slightly downward inclined "straight lines", the relationship between its speed and torque (characteristic) is relatively "hard", and it can easily change its speed by changing the power supply voltage of the motor;

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