Image:Transformer equivalent circuit.svg

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Transformer_equivalent_circuit.svg‎ (SVG file, nominally 750 × 275 pixels, file size: 49 KB)

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Description

Equivalent circuit for a single phase transformer with NP turns in the primary winding and NS in the secondary, showing:

  • Primary winding resistance RP
  • Primary leakage reactance XP
  • Secondary winding resistance RS, referred to the primary circuit by the turns ratio squared
  • Secondary leakage reactance XS, referred to the primary circuit by the turns ratio squared
  • Equivalent core loss resistance RC and core loss current IC
  • Magnetising reactance XM and magnetising current IM
  • No-load current I0
  • Primary and secondary EMF EP and ES, developed over an ideal transformer
  • Primary and secondary terminal voltages and currents VP, IP, VS and IS
Source

Self-drawn
Date

2007-05-09
Author

Me
Permission
(Reusing this image)
I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current20:00, 11 May 2007750×275 (49 KB)BillC (Fix labelling error)
20:13, 9 May 2007750×275 (49 KB)BillC (Equivalent circuit for a single phase transformer with ''N<sub>P</sub>'' turns in the primary winding and ''N<sub>S</sub> in the secondary, showing: * Primary winding resistance ''R<sub>P</sub>'' * Primary leakage reactance ''X<sub>P</sub>'' * Secondary )
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