Author Topic: Components of my 8.6 inch pig-powered SGTC: Power factor correction (PFC)  (Read 585 times)

Offline MRMILSTAR

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Here are some pictures of my PFC bank. Its located in the back of my control cabinet. It consists of a bank of 100 uF and 50 uF capacitors which can be individually connected via toggle switches. The maximum capacitance available is 450 uF. The pictures show an earlier version with different capacitor values.
Steve White
Cedar Rapids, Iowa
Retired electrical engineer

Offline Mads Barnkob

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Did you do any measurements of the power factor when running full load?

The measurements I did for my DRSSTC showed 0.45 PF without a variac in front and 0.5 PF when using a variac and 0.6 PF when using a 3 phased input choke. This is of cause different from yours as I have a capacitive load and you have an inductive, to start with.
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Offline MRMILSTAR

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The only measurements that I took were the before and after for wall current and final PFC capacitance needed to achieve the minimum current.
Steve White
Cedar Rapids, Iowa
Retired electrical engineer

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