Varible speed drive manfacture
Varible speed drive manfacture
(OP)
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
Thanks





RE: Varible speed drive manfacture
If you want VFD manufacturers, there are hundreds. A simple Google search will turn up much more than we can possibly want to name here.
Come back if you want some advice on a particular manufacturer's product and it might be helpful to be prepared to discuss your operating methodology too.
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Varible speed drive manfacture
I suggest you to follow BigInch's advise, he is a guru in the field of VFDs. Take a look at the thread below
thread407-260203: VSD energy savings
RE: Varible speed drive manfacture
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Varible speed drive manfacture
Mark Hutton
RE: Varible speed drive manfacture
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Varible speed drive manfacture
RE: Varible speed drive manfacture
I admit that I said it because at least I personally don't want to see this forum turn into another e-bay-alibaba find it all here site for purchasing department managers. Hopefully that viewpoint is consistant with those held by Eng-tips management.
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Varible speed drive manfacture
ABB an Siemens are two large vendors of complete VFD drivers in all sizes.
Best regards
Morten
RE: Varible speed drive manfacture
Your VFD consist of the motor and the controller/transformer. You could split the supply - but ABB and Siemens are two that can deliver both.
be aware that a standard motor may NOT be suited for VFD. The fan must have its own motor and nut just be powered by the main motor. If it is (as is very common) - then it will spin slower at slower speeds - and the reduction in air flow may be larger than what is required - thus leading to over-heating.
Best regards
Morten
RE: Varible speed drive manfacture
RE: Varible speed drive manfacture
My first thought was;
"No.Big isn't a VFD guru. We have those and big isn't one of them. Big IS a guru in the application of VFDs to pumping.
That's just what this OP needs."
A sincere compliment BigInch
Yours
Bill
Bill
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"Why not the best?"
Jimmy Carter
RE: Varible speed drive manfacture
That was my immediate thought too. I certainly wouldn't want to insult you sparkies by even alluding to a title like "VFD guru". Like I say, a VFD is a total black box to me, but I am proud to recieve your and other's compliments on what I have been able to figure out about their applications as pump drives.
Thx
Some day I'll have to take a look inside one, but without touching it. Do they come with clear plastic covers?
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"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: Varible speed drive manfacture
If the VFd salesman knows more than your pump engineers about pump applications then give up and move away!
RE: Varible speed drive manfacture
One thing for sure is trying to learn everything about everything is very time consuming.
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"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: Varible speed drive manfacture
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If we learn from our mistakes I'm getting a great education!
RE: Varible speed drive manfacture
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"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: Varible speed drive manfacture
----------------------------------
If we learn from our mistakes I'm getting a great education!
RE: Varible speed drive manfacture
Seriously, we blind denisons of the fluid depths always appreciate your enlightening contributions. Even if we can't see them clearly, we do manage to get our heads around your concepts, if not our mouths. Thank You!
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"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: Varible speed drive manfacture
The biggest factor in determining if a VFD will save money, is the nature of your system. Static head vs friction is THE key factor.
RE: Varible speed drive manfacture
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/