• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


Ano ang Rotating Magnetic Field?

Encyclopedia
Larangan: Ensiklopedya
0
China

Ano ang Rotating Magnetic Field?

Pangungusap ng nag-rotate na magnetic field

Kapag isinama ang three-phase power supply sa three-phase distributed winding sa isang rotating machine, ginagawa ang isang rotating magnetic field.

ec009e113ba1d99f72a162932fe80eae.jpeg

Bagaman ang vector sum ng tatlong kuryente sa isang balanced three-phase system ay zero sa anumang oras, ang naging magnetic field na ito ay hindi zero. Sa halip, mayroon itong constant non-zero value na nag-rotate sa paglipas ng panahon.

Ang magnetic flux na gawa ng kuryente sa bawat phase ay maaaring ipahayag gamit ang tiyak na mga ekwasyon. Ang mga ekwasyong ito ay nagpapakita na ang magnetic flux ay in phase sa kuryente, katulad ng isang three-phase current system.

fa28368c3eaff4db7f439307c05c0442.jpeg

Kung saan, ang φR, φY, at φB ay ang kasalukuyang magnetic flux ng red, yellow, at blue phase windings, at ang amplitudes ng φm flux waves. Ang flux waves sa espasyo ay maaaring ipakita bilang ipinapakita sa larawan sa ibaba.

Ngayon, sa graph representation ng flux wave sa itaas, unang i-consider natin ang punto 0.

Sa kaso na ito, ang halaga ng φ

bc821a939ae36e963a54261ade1ffc15.jpeg

Three-phase power supply

Ang power supply ay may tatlong kuryente na 120 degrees apart, na nagpapabuo ng isang balanced system.

Magnetic flux behavior

Ang magnetic flux na gawa ng bawat phase ay in phase sa kuryente at maaaring ipakita gamit ang graph.

Rotation ng flux vector

Ang resulting flux vector ay nag-rotate sa isang constant value at kompleto ang buong cycle.

The generation of a rotating magnetic field

Ang rotating magnetic field na ito ay nabuo dahil sa isang balanced power supply na isinama sa stator windings.

Magbigay ng tip at hikayatin ang may-akda!

Inirerekomenda

SST Technology: Full-Scenario Analysis in Power Generation, Transmission, Distribution, and Consumption
I. Research BackgroundPower System Transformation NeedsChanges in energy structure are placing higher demands on power systems. Traditional power systems are transitioning toward new-generation power systems, with the core differences between them outlined as follows: Dimension Traditional Power System New-Type Power System Technical Foundation Form Mechanical Electromagnetic System Dominated by Synchronous Machines and Power Electronic Equipment Generation-Side Form M
10/28/2025
Rectifier vs Power Transformer: Key Differences
Differences Between Rectifier Transformers and Power TransformersRectifier transformers and power transformers both belong to the transformer family, but they differ fundamentally in application and functional characteristics. The transformers commonly seen on utility poles are typically power transformers, while those supplying electrolytic cells or electroplating equipment in factories are usually rectifier transformers. Understanding their differences requires examining three aspects: working
10/27/2025
SST Transformer Core Loss Calculation and Winding Optimization Guide
SST High-Frequency Isolated Transformer Core Design and Calculation Material Characteristics Impact:Core material exhibits varying loss behavior under different temperatures, frequencies, and flux densities. These characteristics form the foundation of overall core loss and require precise understanding of nonlinear properties. Stray Magnetic Field Interference:High-frequency stray magnetic fields around windings can induce additional core losses. If not properly managed, these parasitic losses
10/27/2025
Upgrade Traditional Transformers: Amorphous or Solid-State?
I. Core Innovation: A Dual Revolution in Materials and StructureTwo key innovations:Material Innovation: Amorphous AlloyWhat it is: A metallic material formed by ultra-rapid solidification, featuring a disordered, non-crystalline atomic structure.Key Advantage: Extremely low core loss (no-load loss), which is 60%–80% lower than that of traditional silicon steel transformers.Why it matters: No-load loss occurs continuously, 24/7, throughout a transformer’s lifecycle. For transformers with low loa
10/27/2025
Inquiry
+86
I-click para i-upload ang file
I-download
Kumuha ng IEE-Business Application
Gamit ang app na IEE-Business upang makahanap ng kagamitan makuha ang mga solusyon makipag-ugnayan sa mga eksperto at sumama sa industriyal na pakikipagtulungan kahit kailan at saanman buong pagsuporta sa pag-unlad ng iyong mga proyekto at negosyo sa enerhiya