Variable Frequency Drives (VFDs) used in discrete manufacturing and process plants for fans, pumps, conveyors, mixers, and more, can offer considerable energy savings, reduced waste, lower maintenance costs, a longer motor life, and precise process control.
And, because of the impact on noise emissions, voltage reflections, overvoltages, and corona discharge, choosing the right cable for your VFD system can be as important as selecting the motor and drive.
A post on Belden's blog outlines what to look for in a cable optimized for VFD applications, including:
1
High-strand, tinned copper circuit conductors recommeded for electrical performance.
2
Insulation well above code requirements. ( Industrial VFD-grade XLPE (Cross-linked polyethylene)
insulation with the proper RHHW-2 thickness recommended.)
3
Ground and shielding protection from disruption. (300 percent ground to circuit conductor cable design recommended for smaller drives, while 100 percent ground to circuit conductor cable design recommended for larger drives)
4
Industrial grade jacketing options. (PVC jackets recommended for sunlight/oil exposure, TPE jackets recommended for weld splatter and flexibility, and LSZH jackets recommended if you need Halogen-free jackets)
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