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File:Tap changing switch.gif

Tap_changing_switch.gif ‎(250 × 500 pixels, file size: 188 KB, MIME type: image/gif, looped, 17 frames, 12 s)

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Summary

Description
English: Animation of an on-load transformer tap changer, illustrating how taps can be selected without either interrupting supply or short-circuiting winding turns.

The tap changer starts at tap position 2, with load supplied directly via the right hand connection. Diverter resistor A is short-circuited, diverter B is unused.

If the tap changer is moved to tap 3, the following sequence occurs:

  1. Switch 3 closes, an off-load operation.
  2. Rotary switch turns, breaking one connection and passing load current through diverter resistor A.
  3. Rotary switch continues to turn, connecting between contacts A and B. Load now supplied via diverter resistors A and B, winding turns bridged via A and B.
  4. Rotary switch continues to turn, breaking contact with diverter A. Load now supplied via diverter B alone, winding turns no longer bridged.
  5. Rotary switch continues to turn, shorting diverter B. Load now supplied directly via left hand connection. Diverter A is unused.
  6. Switch 2 opens, an off-load operation.
The animation then shows the tap changer returning to its starting position by reversing the above sequence of operations.
Date 22 January 2006 (original upload date)
Source Transferred from en.wikipedia to Commons.
Author BillC at English Wikipedia

Licensing

BillC at the English-language Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
w:en:Creative Commons
attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Subject to disclaimers.
Attribution: BillC at the English-language Wikipedia
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This licensing tag was added to this file as part of the GFDL licensing update.
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. Subject to disclaimers.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2006-02-04 22:51 BillC 250×500× (192703 bytes) Add frames to make animation smoother
  • 2006-01-22 22:36 BillC 250×500× (147599 bytes) Pause longer at switch open/close frames
  • 2006-01-22 22:15 BillC 250×500× (147599 bytes) 50% slower version
  • 2006-01-22 20:27 BillC 250×500× (147599 bytes) Animation of an on-load transformer [[tap changer]]

References

Central Electricity Generating Board (1982) Modern Power Station Practice, Pergamon ISBN 0-08-016436-6

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inception

22 January 2006

File history

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Date/TimeDimensionsUserComment
current12:12, 21 February 2011250 × 500 (188 KB)OgreBot(BOT): This is the version originally uploaded on 2006-02-04 22:51 by BillC; storing on commons for archival purposes

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