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synchronous motor rewinding

Thread Starter: Import-User-1   Started: 3/8/2012 8:40 AM   Replies: 8

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  3/8/2012, 8:40 AM
Import-User-1
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sriram_amtec wrote:
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 ?
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  3/29/2012, 11:02 AM
TechTeam
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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 rewind such a motor. 
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TechTeam
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  3/30/2012, 12:15 PM
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TechTeam wrote:
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 rewind such a motor. 


OFF TOPIC

Source of the MTBF value, please.
Tell me and I will forget. Show me and I will remember. Involve me and I will understand. -Confucius
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  4/2/2012, 10:25 AM
TechTeam
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the link with the MTBF-values:
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  4/2/2012, 12:16 PM
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I get the error message when tried to open the link.Is any other alternate source? 

Attachment: Error message.JPG  (6 Downloads)
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  4/3/2012, 8:56 AM
TechTeam
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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.
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  4/4/2012, 5:49 AM
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Can you attach the screen shot or only page in pdf format?
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  4/4/2012, 1:29 PM
TechTeam
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unfortunately not.

Because when you like to open the file you has to agree a legal disclaimer so I can not provide a screenshot.
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TechTeam
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  4/5/2012, 5:36 AM
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Ok. Thank you for clarification.

Tell me and I will forget. Show me and I will remember. Involve me and I will understand. -Confucius
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