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synchronous motor rewinding

Created by: Import-User-1 at: 3/8/2012 8:40 AM (8 Replies)

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3/8/2012 8:40 AM	Rate (0)
Import-User-1 Posts: 3609 Rating: (29)	sriram_amtec Hello How many times a synchronous motor (particularly built in spindle motor) can be rewound and used. What will be the effect on the performance of the motor when it is rewound ?
Import-User-1 Posts: 3609 Rating: (29)
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3/29/2012 11:02 AM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 1/21/2026 Posts: 6052 Rating: (828)	Hello, the MTBF-value of e.g. 1FK7 is 402 years. 1FT7 394 years. MTBF 402 years means: if you use 402 motors you get a breakdown of 1 motor each 4,02 years statistically. Therefore a necessary rewinding of a synchronous motor will be very unlikely. The effort would be very high to rewindsuch a motor.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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3/30/2012 12:15 PM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	TechTeam Hello, the MTBF-value of e.g. 1FK7 is 402 years. 1FT7 394 years. MTBF 402 years means: if you use 402 motors you get a breakdown of 1 motor each 4,02 years statistically. Therefore a necessary rewinding of a synchronous motor will be very unlikely. The effort would be very high to rewindsuch a motor. OFF TOPIC Source of the MTBF value, please.
PISCEAN 2010 Posts: 8092 Rating: (884)
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4/2/2012 10:25 AM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 1/21/2026 Posts: 6052 Rating: (828)	the link with the MTBF-values: https://intra1.automation.siemens.com/org/mc/qm/data/mtbf_comp/
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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4/2/2012 12:16 PM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	I get the error message when tried to open the link.Is any other alternate source? Attachment Error message.JPG (951 Downloads)
PISCEAN 2010 Posts: 8092 Rating: (884)
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4/3/2012 8:56 AM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 1/21/2026 Posts: 6052 Rating: (828)	I tried the link, I got no error message. Unfortunately the document is only available for internal use => Intranet. Please contact your local Siemens Sale.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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4/4/2012 5:49 AM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	Can you attach the screen shot or only page in pdf format?
PISCEAN 2010 Posts: 8092 Rating: (884)
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4/4/2012 1:29 PM	Rate (0)
Technology Team Platinum Expert Joined: 10/11/2006 Last visit: 1/21/2026 Posts: 6052 Rating: (828)	unfortunately not. Because when you like to open the file you has to agree a legal disclaimer so I can not provide a screenshot.
	With best regards, Technology Team Application consulting and pre sales support for SINAMICS, SIMATIC Technology, SIMOTION, SIMOTICS and MOTION CONNECT
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4/5/2012 5:36 AM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	Ok. Thank you for clarification.
PISCEAN 2010 Posts: 8092 Rating: (884)
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