07-09-2022, 07:39 AM
Power factor is a problem but relatively easy to correct with capacitor banks or rotating machines acting as synchronous capacitors (or occasionally inductors). Harmonics are harder to deal with.
I've done the basic maths for PF, nothing terribly complicated beyonds sin, cos and tan, though it helps to be familiar with j (the square root of -1, what the mathamagicians call i but electrical types don't cos it gets confused with current). It all gets a lot harder when there are distorted or non-periodic waveforms. This bit on the wiki article shows the simple stuff quite nicely: https://en.wikipedia.org/wiki/Power_factor
The whole article has a fair bit of maths which will initimidate some: https://en.wikipedia.org/wiki/Power_factor
I've done the basic maths for PF, nothing terribly complicated beyonds sin, cos and tan, though it helps to be familiar with j (the square root of -1, what the mathamagicians call i but electrical types don't cos it gets confused with current). It all gets a lot harder when there are distorted or non-periodic waveforms. This bit on the wiki article shows the simple stuff quite nicely: https://en.wikipedia.org/wiki/Power_factor
The whole article has a fair bit of maths which will initimidate some: https://en.wikipedia.org/wiki/Power_factor
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
