Talk:Buck–boost transformer

message: This article contains a lot of garbage or garbled information. So flagged. Tanning beds do not a buck-boost expert make, as a primary and more historical use is MOTORS! 64.50.228.36 03:17, 16 November 2007 (UTC)
thread_title: Garbled information and tanning beds

message: The majority of text in this page is identical to http://www.powertransformer.us/buckboosttransformers.htm
Which came first?  —Preceding unsigned comment added by 65.115.107.210 (talk) 20:55, 11 September 2007 (UTC)
thread_title: Original work? Referenced work?

message: This section needs a bit of a re-write. No refs are provided to support the statement that buck-boost transformers are used in power distribution to correct for the voltage drop due to power flowing over long heavily loaded distribution lines. A fixed transformer in boost arrangement used to correct a 10% drop on a long heavily loaded line would cause a voltage 10% too high under light load conditions. A tap changing transformer or other variable ratio arrangement would be needed to correct for voltage drop, not a fixed ratio arrangement as the article implies. See [http://books.google.com/books?id=QOVZnR3ctn4C&pg=SA4-PA8&dq=transformer+%22buck+boost%22&hl=en&sa=X&ei=_TeYT5DdM4ew6QGjyZi-Bg&ved=0CFEQ6AEwAQ#v=onepage&q=transformer%20%22buck%20boost%22&f=false "Fundamentals of Electrical Design - Module 4 - Understanding Transformers" by David R. Carpenter, section 4-4.2.3. There are buck-boost regulators with motor driven Variac-type adjustment, electronically switched taps, and saturable reactors (for pieces of equipment). I have used fixed boost-buck transformers to adjust when areas with slightly different nominal voltages  are interconnected. These are likely to be two winding transformers with the secondary connected to add to or subtract from the supplied voltage. To correct for the 5 or 10 % copper loss voltage drop in the line describer, the substation transformer could have a tap changer which raises the voltage sent out when high load is sensed, or a capacitor bank could be placed on the line to add capacitance and counteract inductive reactance during heavy loads, or a voltage regulator could be added to the line. Edison (talk) 18:03, 25 April 2012 (UTC)
thread_title: Electric power distribution applications

message: I do not know where this idea that a buck-boost transformer is an autotransformer came from. If anybody has references or examples I would love to see them. 174.118.142.187 (talk) 15:59, 17 January 2013 (UTC)
thread_title:  autotransformers don't buck voltages 

message: Although tapchangers are technically buck-boost windings I do not feel they fit the classic description "buck-boost transformers". In my world they have never been referred to as "transformers. They may be stand alone or part of a larger transformer. Small mention and link but not cluttering the article. 174.118.142.187 (talk) 17:03, 17 January 2013 (UTC)
replies: text: No. Different device, and many of the " fixing a 208 V widget to work on 240 volt power" applications will not have and do not need a tapchanger. --Wtshymanski (talk) 20:19, 17 January 2013 (UTC)
thread_title:  Should tapchangers be discussed in this article?