Talk:Quadrature booster

Untitled

OK, but this article does not explain where the phase shifted signal comes from: another AC power supply at quadrature, a huge capacitor and/or induuctor bank, or some other method? -- 80.168.224.153 21:23, 3 January 2006 (UTC)

The quadrature component comes from the shunt transformer. I have uploaded a simplified circuit diagram to better show the situation; I will endeavour to clarify the text in short order. --BillC 00:52, 4 January 2006 (UTC)

Invention

Do you know who invented or first brought this idea into use?--Light current 23:05, 4 February 2006 (UTC)

I'm sorry, I don't know. BillC 19:15, 6 February 2006 (UTC)

What's a "quadrature phase booster" ?

We really ought to have references for things before we write articles. This term doesn't exist in the power industry. Where's it from? It gets *no* Google hits aside from Wikipedia and its satellites. The article should be called phase-shifting transformer. --Wtshymanski 23:46, 2 March 2006 (UTC)

"Science fiction in Wikipedia'"? Do you suggest they are fictional? There are two book references at the end of the article. The term 'quadrature phase booster' is used in the UK power industry, and so it is the one I chose to use when starting the article. I could name fifteen large such units in the UK, up to 2750 MVA. An alternate name, 'quadrature booster', gets several hundred hits on Google. BillC 02:30, 3 March 2006 (UTC)

• In deference to your concerns, I dropped 'phase' from the name and moved the article to 'Quadrature booster'. The redirect from phase-shifting transformer has been edited. BillC 17:11, 3 March 2006 (UTC)

I've never heard of a "quadrature booster" (odd name, "boosters" boost the magnitude of the voltage) before now - but there's a number of phase-shifting transformers around here, including a moderate-sized unit that ties Ontario to Manitoba. My copy of Weedy is at home - I'll have to check. This sounds like it might be terminology peculiar to the UK since as I mentioned there's about 11000 Google hits on "phase-shifting transformer" and less than 200 on "quadrature booster". --Wtshymanski 18:40, 3 March 2006 (UTC)

Additional information

Phase Shifting Transformers are also referred to as Phase Angle Regulators (PAR) by utility industry. The PAR at our plant is manually controlled by the System Operator through a SCADA (Supervisory Control And Data Aquistion) terminal. A movable load tap changer is operated to achieve the proper phase angle at the PAR. The phase angle determines the magnitued and direction of power flow across our plant switchyard and the two 115 kV transmission lines leaving it. Pend Oreille Public Utility District

context needed

69.140.152.55 (talk) 04:51, 29 February 2008 (UTC)

Explanation needed

This is a very interesting article, but for me i could use some extra explanation:

• <The shunt unit has its windings connected across the phases, so it produces output voltages shifted by 90° with respect to the supply>

I need an explanation on why a phase shift of pi/2 is the result of cross connecting the phases. Maybe in a separate article?

• I think, the resulting voltage curve on the line is not a sine. It would be with a shift of pi.
  

Is that correct?
Is that not a problem with respect to the power quality in the network?

• The tap positions on the phases of the shunt transformer are not necessarily equal.
  

What is the effect of different tap positions on the different phases of the shunt transformer?

• Do you need three taps or could you do with two taps, or with one?
  
• Is the resulting power on the line equal for the three phases, or does it differ (phase imbalance)?
  

And if there is a phase impalance, where do we go with the resulting differences in current, as there is not neutral line in the model?
80.140.135.69 (talk) 11:12, 30 August 2012 (UTC)

External link is broken

The one external link listed no longer works. — Preceding unsigned comment added by Yambu (talk • contribs) 03:55, 17 November 2013 (UTC)