#11
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Quote:
http://allmetalshaping.com/showthrea...hlight=pullmax
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Rick Scott The second mouse gets the cheese! |
#12
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Found some more information about converters and % of rated load on:
http://www.phaseconverterfaq.org/cap...converters.htm Quote:
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Kerry Pinkerton |
#13
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My understand about VFD's is that if it is run from 3 phase supply it will run rate HP. I'm sure there will be some de-rating required as you get into huge HP. Its when it is run from single phase supply that the VFD has to be de-rated by about 1/3 or so. This is because of the loss of the 3rd leg of power. I'm no engineer but this is what I have been told. I currently run 3 VFD's. 1 on a 2HP Spinning Lathe (3HP VFD), 1 on a 5HP Press (7.5HP VFD) and 1 on a 10 HP Bradley Power Hammer (15HP VFD). Well, I don't run the Bradley yet but soon!
These de-ratings were the recommendation of the tech' at Factorymation.com The main requirement was Full Load Amps as the sizing factor. |
#14
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vfd motors
Are you running standard 3 phase motors?Any overheating problems at slow speeds?Or are you using vfd rated motors?Is your power supply single phase in to your vfd's.Thankyou ,tom
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Tom |
#15
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Quote:
It is recommended to use a fan if you run at slower speeds yes, I run the recommended HP and have not had an issue yes, I run single phase on my pullmax (2 hp)and my lathe(5hp) I run 110 volt on my beadroller (1/4 hp)and my bammbamm(1hp)
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Rick Scott The second mouse gets the cheese! |
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