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Star Delta Starter - Open Transition Vs Close Transition |
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 Oct 5 2007, 04:45 PM
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Junior Member  Group: Full Member Posts: 5 Joined: 1-June 07 Member No.: 3,326  |
Star Delta Starter - Open transition VS Close transition
L & Gs, In my project I had come across a selection between a close transition and open transition Star Delta Starter. Having an open transition I will definately benefit from smaller space requirement. But I would like to know is there any advantage for close transition over open transition ? Your valuable experience is greatly appreciated. Rgds, rome |
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Oct 10 2007, 05:43 AM
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#2
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Posting Freak Group: Moderator Posts: 2,383 Joined: 24-April 02 From: Christchurch, New Zealand Member No.: 1 |
Hello rome
The open transition starter produces a very high current and torque transient at the switch over. This can result in high electrical and mechanical damage. The closed transition starter is one way to reduce the amplitude of the the switching transient. Have a look at http://www.lmphotonics.com/star_delta.htm for more information. 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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Jun 12 2009, 07:48 AM
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#3
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Group: Members Posts: 1 Joined: 12-June 09 Member No.: 5,490 |
hi
can anybody provide me info of manufacturers for star delta closed transition for 132 kw induction motor for classified area class 1 zone 2 with regards ramana QUOTE (marke @ Oct 10 2007, 12:43 PM)  Hello rome
The open transition starter produces a very high current and torque transient at the switch over. This can result in high electrical and mechanical damage. The closed transition starter is one way to reduce the amplitude of the the switching transient. Have a look at http://www.lmphotonics.com/star_delta.htm for more information. Best regards, |
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