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--- scott-transformer [2011/11/29 07:58] – Alan Shea
+++ scott-transformer [2018/05/28 22:29] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 === Scott T-Transformers===
-Useful for Utility Power connection to convert 3ø to 1ø and allow full use of all three phases.
+Useful for Utility Power connection to convert 3ø (120 degree phase angle, 3 wire) to 2ø (90 degree phase angle, 3 or 4 wire) and allow full use of all three phases.
+Scott T-Transformers can be built to transform voltage as well as polyphase (such as 480v delta to 120/240v), but that does not appear to be as useful in most applications we consider here.
+For further background.
-Probably not possible to do percentage tap adjustments for low voltage since percentage taps are required for the phase relationships.
+  * GE transformer manual -- GET-2485T, Distribution Transformer Manual, p63,64. //{Alan - attach a scan of those pages}//
+  * [[http://openbookproject.net/electricCircuits/AC/AC_9.html#xtocid1536813|"Lessons in Electric Circuits", Vol II, Chapter 9]], and {{:pch:hpsi-ta11.pdf|Hammond Power Solutions Technical Information Document 11}}(([[http://hammondpowersolutions.com/products/product_literature/technical_articles/index.php]]))
+  * http://www.3phasepower.org/2phasesystems.htm
+  * [[http://en.wikipedia.org/wiki/Scott-T_transformer]]
-  * GE transformer manual -- GET-2485T, Distribution Transformer Manual, p63,64.
-  * [[http://openbookproject.net/electricCircuits/AC/AC_9.html#xtocid1536813|"Lessons in Electric Circuits", Vol II, Chapter 9]], and [[http://www.hammondpowersolutions.com/upload_files/hpsi-ta11.pdf]]{{:pch:hpsi-ta11.pdf|PDF}}((http://hammondpowersolutions.com/products/product_literature/technical_articles/index.php))
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