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The temperature of output reator is too high

Created by: Billing at: 11/2/2009 8:45 AM (3 Replies)

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11/2/2009 8:45 AM	Rate (0)
Billing Posts: 32 Rating: (0)	Dear all, our customer used our siemens MM3' system option: output reator 4EP3601-3DS And the temperature is too high. thetemperature of the winding is 75℃ the temperature of the core is 92℃ Can you help us deal with it? And I want to know how much temperature our reator can run ? highest? Have we measures to deal with it? thanks a lot?
Billing Posts: 32 Rating: (0)
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11/2/2009 12:29 PM	Rate (0)
Valli Posts: 262 Rating: (45)	Dear Billing, First of all this is to inform you that MLFB given by you is changed to new MLFB i.e. 4EP36 01-3DS00. Secondly, these are Communtationreactors not output reactors. After going through its LV catalogue ( Chapter 2 is attached for your refernce also) it is found that the rated current of reactors are 14Amp and Imax thermal should be less than 16A and Idc should not be more than 20A. Please check if all these currents in your application is inline with the above data, this could b one of the reason of heating. Secondly, please check the permissible ambient for the place where the reactors are istalled. 4EP offers class B insulation @ 40 Deg C. That means you can get the temp rise of atleast 70-80 Deg C on this ambient temp. Also please check where these reactors have been installed .... Is it just below the Converter i.e. converter Fan might be contibuting the heating of these reactors. The area of application can be found in the below link. https://mall.automation.siemens.com/IN/guest/index.asp?aktPrim=0&nodeID=10008270&mlfb=4EP3601%2D3DS00&aktTab=4&lang=en Attachment 10008270T.zip (416 Downloads)
Valli Posts: 262 Rating: (45)
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11/3/2009 3:51 AM	Rate (0)
Billing Posts: 32 Rating: (0)	Thanks for your reply. But in our siemens selection software, a drive software:MICROMASTER SELECTOR, Thereactor worked as a output reactor please see the attachment. And our technical data temperature class of reactor is 40/B That means the reactor can run at below 130℃ of copper winding, right?
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11/3/2009 3:52 AM	Rate (0)
Billing Posts: 32 Rating: (0)	the attachment Attachment micromaster selector.JPG (418 Downloads)
Billing Posts: 32 Rating: (0)
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