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  • Users: wzrdstrm
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  1. wzrdstrm

    Delta-Wye VFD Power Problem

    Dear Readers~ We have a VFD rectifier that has two bridges on it. One bridge is fed from a delta connection and the other from a Wye connection. The idea is to provide harmonic cancelation for a VFD system. We did not originally have input line reactors and the fuses to the rectifier Y bridge...
  2. wzrdstrm

    VFD Power Modeling

    Team, I'm trying to develop a mathematical relatiionship for the HP(or KW)for a Motor controled by a VFD. The motor is a 1150 HP 600VAC, 40 HZ 6 pole motor. I have a theoretical model showing a linear relationship from 0hz to 40hz. HP is constant to a point after that, I know. I'll have...
  3. wzrdstrm

    VFD Cost Savings

    I've been doing some research for my company and have to present how much I can save the company by going to VFD's instead of direct induction (starter application). I don't get the option of a test bench or wind tunnel, so please help me if you can. We have approx. 36 fan applications, dust...

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