transformer heat run test the loading back method l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Transformer heat run test: The loading back method PowerPoint Presentation
Download Presentation
Transformer heat run test: The loading back method

Loading in 2 Seconds...

play fullscreen
1 / 9

Transformer heat run test: The loading back method - PowerPoint PPT Presentation


  • 379 Views
  • Uploaded on

Transformer heat run test: The loading back method. IEEE transformer Committee meeting, March 2008 By Marcel Fortin, eng., Consultant. Standard Requirement: C57.12.90 clause 11. Tests shall be made by one of the following methods: a) Actual loading b) Simulated loading

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Transformer heat run test: The loading back method' - iokina


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
transformer heat run test the loading back method

Transformer heat run test: The loading back method

IEEE transformer Committee meeting, March 2008

By Marcel Fortin, eng., Consultant

standard requirement c57 12 90 clause 11
Standard Requirement: C57.12.90 clause 11
  • Tests shall be made by one of the following methods:
    • a) Actual loading
    • b) Simulated loading
      • 1) The short-circuit method, in which appropriate total losses are produced by the effect of short-circuit current
      • 2) The loading back (opposition) method, in which rated voltage and current are induced in the transformer under test
standard requirement c57 12 90 clause 113
Duplicate (not nessary) transformers may be tested by connecting their respective high-voltage and low-voltage windings in parallel (see Figure 27 and Figure 28). Transformers shall be tested with the combination of connections and taps that give the highest average winding temperature rise. This will generally involve those connections and taps resulting in the highest losses.Standard Requirement: C57.12.90 clause 11
loading back method5
Loading back method
  • Transformer 1: transformer under test
  • Transformer 2: « source » transformer
  • S1: variable source, provides essentially the total iron losses
  • S2: variable source, provides essentially the copper losses
loading back method6
Loading back method

Tranformer 1

  • P1 : nomiral kVA
  • Ip1: nominal primary current
  • Is1: nominal secondary current
  • Up1: nominal primary voltage
  • Us1: nominal secondary voltage
  • Iz1: percentage impedance
  • N1: Up1/ Us1
loading back method7
Loading back method

Tranformer 2 requirements

  • P2  P1
  • Ip2  Ip1
  • Is2  Is1
  • Up2  Up1
  • Us2  Us1
  • Iz2: percentage impedance
  • n2 = n1  (Iz1+Iz2) (base power: P1)
loading back method8
Loading back method

Source 1 requirement

  • Variable source
    • Voltage range: 0 to Us1
    • Nominal current: enough to feed the total magnetizing current.
loading back method9
Loading back method

Source 2 requirement

  • Variable source
    • Voltage range: 0 to  total Iz voltage drop
    • Nominal current  Ip1