Varible speed drive manfacture 2

[SZL]

I would like to initiate a study to evalaute the suitablity of using variable speed mtor on one of big pump in our plant. Could you please provide me with names and websites of variable speed drive manfacturer.

Thanks

 

[BigInch]

Although it is surprizing how much where you operate in relation to BEP has to do with it too. My general guidelines are a VFD does little to no good when you operate at 85 to 100% BEP, so its better to avoid them, if you spend 50% or more of your time inside that range. Below that, static head makes more of a difference. If you have a significant static head component, below 75% BEP may be reaching the too much head loss zone and below 50% becomes difficult. If you spend 50% or more of your time at less than 50% BEP and have no static head, then you're talking good potential VFD performance enhancement possibilities, although you probably should have designed your system for a smaller flowrate.



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"The problem isn't working out the equation,
its finding the answer to the real question." BigInch

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