Armature winding: the stator winding of the generator. Under the action of rotating rotor magnetic flux, a synthetic rotating magnetic field generated by induced potential and multiphase current is generated. It is a circuit element connected with an external power system to absorb or emit active and reactive power.
Question 2: What is an excitation winding? What is armature winding? Among the stator and rotor windings of the motor, the winding that produces air gap magnetic field under no load is called excitation winding (or excitation winding); Another winding that produces power conversion (absorbing or outputting active power) is called armature winding. It can be seen that the excitation group of hydro-generator is rotor winding and the stator winding is armature winding. The excitation winding of asynchronous motor is stator winding, and the rotor winding in short circuit state is armature group.
Question 3: What is an excitation winding? What is armature winding? What is the difference between stator winding and rotor winding of motor? The winding that produces air-gap magnetic field at no load is called excitation winding. Another winding that produces power conversion (absorbing or outputting active power) is called armature winding. The excitation group of generator is rotor winding, while the stator winding is armature winding. The excitation winding of asynchronous motor is stator winding, and the rotor winding in short circuit state is armature group.
Question 4: How to distinguish armature windings? The stator winding and armature winding are the same. When measured by multimeter, the armature winding resistance is small and the excitation winding resistance is large.
Question 5: What is the difference between stator winding and armature winding? Detailed reference:
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Question 6: The principle of armature winding The function of armature winding is to generate electromagnetic torque and induced electromotive force, which is the key component of DC motor for energy conversion, so it is called armature. It is composed of many coils (hereinafter referred to as elements) connected according to certain rules. The coil is made of high-strength enameled wire or flat copper wire wrapped with glass fiber. The coil sides of different coils are embedded in the armature slots of the upper and lower layers, and the coils must be insulated from the iron core and the upper and lower coil sides. To prevent the coil edge from being thrown out of the slot by centrifugal force, the slot is fixed with a slot wedge, as shown in Figure 8.9. The end of the coil extending out of the slot is wrapped with thermosetting weftless glass tape.
You can refer to the data of motor magnetic field distribution again.
Question 7: What is the number of armature winding conductors? Please be more specific. The concept of "conductor" is derived from the concept of "conductor cutting magnetic induction line". The coil side placed in the armature tooth slot is equivalent to "effective conductor", here it is "coil side", and a turn of coil has two coil sides, namely two "equivalent conductors". In addition, if there are upper and lower coil sides in the slot, the number of wires in this slot is actually two. (Of course, it is feasible to use one turn of coil as the conductor of ridge effect to establish the formula, but it is only a question of coefficient).
Question 8: What is the armature winding of DC motor? Is it a rotor winding? Yes, it's a rotor winding.
Question 9: Brief introduction of armature winding of armature winding The coil groups in the armature of motor are wound and connected according to certain rules. It is one of the main components in the motor to realize electromechanical energy conversion. The coils that make up the armature winding have one or more turns, and each turn can be wound by multiple parallel wires. The coil is placed in the slot. Design requirements of armature winding: armature winding should be composed of enough induced electromotive force and allow a certain armature current to pass through to generate the required electromagnetic torque and electromagnetic power. In addition, non-ferrous metals and insulating materials should be saved, with simple structure and reliable operation. Armature winding is divided into DC armature winding and AC armature winding. They are used for DC motors and AC motors respectively. Commonly used terminology of armature winding (coil): winding coil is called winding element and is divided into single turn and multi-turn. The component consists of two component edges and a terminal wire. When the edge of the element is placed in the slot, it can cut the magnetic field lines and produce induced electromotive force, which is called "effective edge". The terminal wire is placed outside the slot, which does not cut the magnetic field lines, and is only used as a connecting wire. One component edge of each component is placed on the upper layer of a certain slot, and the other component edge is placed on the lower layer of another slot. Head and tail of components: each component leads out two wires to connect with the commutator, one is called the head end and the other is called the tail end. Two terminals of each element are respectively connected to different commutator segments, and each commutator segment is connected to two different coil ends. Real slot: the slot actually opened on the armature of the motor is called the real slot. The number of real slots is expressed by Q. Virtual slots: that is, unit slots (the number of component edges in each layer is equal to the number of virtual slots), and each virtual slot has one component edge in the upper and lower layers. The number of virtual slots is expressed by Qμ. There are μ virtual slots in each layer of the slot. If the number of actual slots is q and the number of virtual slots is Qμ, then q μ = μ q ... Polar axis: the center line of the magnetic pole. Geometric neutral line: refers to the mechanical dividing line between the N pole and the S pole of the main magnetic pole. Physical neutral line: The dividing line between the N pole and the S pole with zero magnetic field is called physical neutral line.