AoE x-Chapters - 1x.1 Wire-&-Connectors

Is that corrugated conduit metallic and if so, is the conduit grounded at least from one end ?

Are there filter capacitors in the aluminum box to the right ? At least there seems to be parallel connections to the output. Is the filter now an LC filter or just some series inductance ?

It seems that also other small VFD manufacturer seem to leave out all filtering For that reason some manufacturer specify in their installation guide that shielded motor cables must be used. When using ordinary wiring instead, the system radiated as hell :-(.

Both ends, naturally.

The shiny box is a commercial AC line filter on the input side. We had to add the toroids to the outputs.

Yup.

p. 12. In German, "Litz" and "Litzendraht" begin with capital letters because all nouns do.

snipped-for-privacy@uga.edu schrieb:

But then it should also read "Litze", because "Litz" isn't a German word.

HTH

Reinhard

If we were to use the German word, we'd put it in italics, and capitalize it. But they've also become English words, and are found in our dictionaries. But we should have capitalized the italicized German in footnote 22, where we translated its meaning.

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Would be good to have a mention of the evils of tinning stranded wire on vi brating equipment. The wire then loses its flexibility and breaks. A common (but really bad) practice is soldering crimped connectors. In my mechanic days, I fixed a lot of problems by cutting off the tinned area of the (now broken) wire and crimping on a new connector with proper insulation strain relief. I think there is a publication from AMP (now Tyco or whoever) descr ibing this problem.

These are the best copper wire varnish strippers I have. I have had them sense the early 80's, they do work with plastic insulation, but are best at scraping off Polyurethane/Polyamide and the higher temp resins from solid copper wire.

Notice one blade broke about 15 years ago and I just use tape to keep it in place. Mikek