Motor's Use As Star Instead Of Delta |
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Motor's Use As Star Instead Of Delta |
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 Jun 28 2007, 03:42 PM
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#1
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 Group: Members Posts: 1 Joined: 28-June 07 Member No.: 3,437  |
Dear Gentleman
A10 kw motor which is designed to be used as 380 volt Delta. If iuse this motor by supplying 380 volt in star Can i save Energy ? Regards simple |
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Jun 28 2007, 04:01 PM
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#2
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 Posting Freak Group: Moderator Posts: 632 Joined: 22-February 03 From: USA, California Member No.: 285 |
No, except that when the motor trips out on overload, you will save a lot of energy because it will not be running!
When you connect it is star, you are effectively reducing the voltage to each winding by the square root of 3, so you are then reducing the torque that the motor can produce by that voltage reduction squared, ending up with 1/3 of the available torque. If your motor was properly sized to do the job it was intended for, it will stall with only 1/3 of its available torque. -------------------- "He's not dead, he's just pinin' for the fjords!"
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Jun 28 2007, 06:32 PM
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#3
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Posting Freak Group: Moderator Posts: 2,010 Joined: 24-April 02 From: Christchurch, New Zealand Member No.: 1 |
If you are operating the motor at less than 3KW, then you can connect in star and you will save some of the iron loss, but if you load is less than 3KW, why are you using a 10 KW motor?
Best regards, -------------------- Mark Empson administrator
Skype Contact = markempson | phone +64 274 363 067 LMPForum | LMP Tech Warehouse | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | LMP Software | Mark Empson Website |
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