The relationship between the number of stator poles and rotor poles in electrical machines is called the relationship between stator poles and rotor poles (or field poles and armature poles).
Here are the key English terms and concepts used to explain this relationship:
Key Terminology
계자 (Field): Generally refers to the Stator (고정자) in synchronous/induction machines, or the Rotor (회전자) in synchronous generators.
회전자 (Rotor): Rotor극수 (Number of poles): Number of poles (often denoted as P)Core Concepts in English
1. Synchronous Machines (동기기)
In synchronous motors and generators, the number of stator poles and rotor poles must be exactly equal.English explanation: "In a synchronous machine, the number of stator poles must equal the number of rotor poles (\(P_s = P_r\)) to lock the magnetic fields together and produce continuous torque."
2. Induction Machines (유도기)
In squirrel-cage induction motors, the rotor does not have fixed physical poles. Instead, the stator magnetic field induces the identical number of poles onto the rotor automatically.
English explanation: "In a squirrel-cage induction motor, the rotor automatically develops the same number of poles as the stator winding."
3. Pole Pitch (극간격)The physical or electrical distance between two adjacent poles.
English explanation: "Pole pitch is the angular distance between the centers of two adjacent opposite poles.
"Example Sentences for Technical Context"
The stator and rotor must have the same number of poles to avoid magnetic unbalance."(자기적 불평형을 피하기 위해 고정자와 회전자는 동일한 극수를 가져야 합니다.)"An incorrect pole combination will result in zero net torque."(극수의 조합이 맞지 않으면 평균 토크가 0이 됩니다.)
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