There are several electronic power meters which measure harmonics and power. Look into Fluke's type 43B power quality analyzer for $2199.75. It measures up to the 51st harmonic. Page 2015 in Newark Electronics catalog #121. www.newarkinone.com.
Amprobe has the HA-2000 power analyzer for...
Hello daves22,
The only advantage to running at a higher voltage and lower current is to the designer of the circuit. He can use a smaller-cheaper wire size.
Because Europe uses a higher voltage, they are more concerned with having finger-safe terminals and must pay closer attention to...
To: busbar
From: pragmatist
It looks like you are recommending an isolated transformer to get around the different kinds of three phase systems; grounded and ungrounded, that might be found in the US. Is this correct?
Hello jbartos,
My sources can be three phase 60 Hz.Y or delta at 208V, 240V, 480V, & 575V(Canada). I assume that I won't be able to use corner grounded 240V delta.
My load will be a three phase Y connected refrigeration compressor operating at 440 V 60 Hz. (European design)
The...
What problems can arise if I use a three phase autotransformer with a center tapped delta power source? Sinse each phase is 240 Volts, I am told the one tapped phase will cause my autotransformer or its' load to short out.