Makaɗar Boko na Faktarin Zane-zanen Koyila?

Takaitaccen Kofin Maimaito (Pitch Factor) da Dukata

Akwai takaitaccen kofin maimaito (ko wanda ake kira chording factor) Kₙ ya bayyana da shi a matsayin tarihi na voltage da aka faru a cikin kofin mai tsarki zuwa wadannan da aka faru a cikin kofin mai rarrabe. Yadda cutar da ke kofin ita ce coil span, wanda ake nufin ta da tushen karamin zahiri don nuna yadda yake tsarki.

Muhimmin Pole Pitch

Yadda cutar da ke bayan abubuwan magance masu karamin zahiri shine pole pitch, wanda ba duka suna iya zama 180 electrical degrees baya wannan adadin poles da ke cikin alamar. Kofi da take da cutar 180 electrical degrees ana kiran shi a matsayin kofin mai rarrabe, kamar haka:

Dukata na Kofin Mai Tsarki

Kofi da take da cutar da ya fi 180 electrical degrees ana kiran shi a matsayin kofin mai tsarki (ko kofin fractional-pitch), ko kuma kofin chorded. An tabbatar da hakan a cikin rubutun:

Chorded Winding da Takaitaccen Coil Span

Winding da ya samu kofin fractional-pitch ana kiran shi a matsayin chorded winding. Idan an kawo cutar kofin da za suka biyo saboda tushen electrical α, za a yi tasirin cutar (180 – α) electrical degrees.

Don kofin mai rarrabe, yadda cutar da ke bayan abubuwan kofin ita ce 180° electrical pole pitch, wanda ke nuna cewa voltages da suka faru a cikin abubuwan kofin ita ce muhimmanci. Za a yi E_C1 da E_C2 don voltages da suka faru a cikin abubuwan kofin, da E_C wanda ke nuna voltage na kofin na gaba. Amsa ta bayyana a kan:

Saboda E_C1 da E_C2 su ne muhimmanci, voltage na kofin na gaba E_C ya zama haske na abubuwan voltages.

Basa,

Phasor Analysis of Short-Pitched Coils

Idan cutar kofin ta fi 180° electrical pole pitch, voltages da suka faru a cikin abubuwan kofin E_C1 da E_C2 suka da wahala. Voltage na kofin na gaba E_C ya zama phasor sum na E_C1 da E_C2.

Idan an kawo cutar kofin da za suka biyo saboda tushen electrical α, za a yi tasirin cutar (180 – α) degrees. Bisa ga haka, E_C1 da E_C2 suka da wahala da α degrees. Kamar yadda ake nufin a kan diagram, phasor sum E_C ya nuna vector AC.

Takaitaccen kofin Kc ya bayyana a kan:

Pitch Factor (Kₙ) Characteristics and Advantages of Short-Pitched Windings
Relationship Between Pitch Factor and Coil Span

• Kofin mai rarrabe: Idan α = 0°, cos(α/2) = 1, basa Kₙ = 1.

• Kofin mai tsarki: Kₙ < 1, wanda ke nuna cewa tsarkin cutar ta haɗa sauran voltage.

Fadada Teknikal na Kofin Mai Tsarki (Chorded Windings)

• Optimization of Material Cost: Ya haɗa cutar da take da end-turns, kuma ya haɗa amfani da material da yanayin sayar da.

• Enhancement of Waveform Quality: Ya haɗa harmonic distortion, kuma ya haɗa EMF da za su faru zuwa sine wave da ya haɗa quality.