Motors & Engines
Description
What would be the value of a capacitor on the output side of an AC drive?
What is it intend to accomplish either from the technological or the finanacial side?
Since the capacitor is not variable a resonant circuit at some frequencies, especially with varying carrier frequency is practically unavoidable.
How would one surmount the resultant problems?
What about the increased discharge voltages due to the harmonics?
I try my darnest to support my thinking - IEEE documentation is the top of my list. (Yes, I like the dreaded color books) Association Standards (maybe not the right term), such as those from Nema, Neta, Ansi, NFPA, API are other reputable sources. AC drive manufacturers data on their equipment is another favorite. And when I get to my empirical/anecdotal data, I say that is what it is and let the other member decide the validity. I& acute;m certainly not demanding you do any of this, but it certainly would help some of us take your posts as serious engineering comments.
It isn& acute;t a problem we would encounter because we don& acute;t use conduit very much for anything.
For an AC drive we commonly use, the installation section of a the manual lists three different types of cable for mains input, motor output, and control respectively.
The shield is to prevent the noise resulting from the fast switching edges interfering with other things.
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AC Drives Manufacturers
AC drives, Variable frequency drive
Address: No.2 Xuwu Gongle Xixiang, Bao'an District,
Shenzhen, Guangdong
China, 518000
Tel: 0086-755-28480223
Fax: 0086-755-28480221
