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| 11/23/2012 2:23 PM | |
Joined: 9/27/2006 Last visit: 9/16/2024 Posts: 12282 Rating:
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Hello Rajkiran; Maybe this information on Sitop power supplies from the Siemens IndustryMallcan help you in your design: Parallel connection for redundant operation Two SITOP power supplies of the same type can be connected in parallel through diodes for a redundant configuration. 100% redundancy only exists for two power supplies when the total load current is no higher than that which one power supply can supply alone and when the supply for the primary side is also implemented redundantly (i.e. a short-circuit on the primary side will not trigger a shared fuse which would disconnect both power supplies from the mains).Parallel connection with decoupling diodes for redundant operation is permitted for all SITOP power supplies. Example Two 1-phase SITOP modular power supplies with 10A rated output current (Order No.: 6EP1334-3BA00) are connected in parallel. The dynamic current in the event of a short-circuit during operation is approximately 30A for 25ms. The diodes should therefore have a loading capability of 40A to be safe, the common heat sink for both diodes must be dimensioned for the maximum possible current of approximately 24A (sustained short-circuit current rms value) x diode conductive-state voltage. https://eb.automation.siemens.com/goos/catalog/Pages/ProductData.aspx?language=en&nodeid=7010109&tree=CatalogTree®ionUrl=/#topAnch |
Last edited by: dchartier at: 11/23/2012 2:25 PM |
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| 11/26/2012 7:51 AM | |
Joined: 8/18/2009 Last visit: 6/17/2024 Posts: 548 Rating:
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Deardchartier, we want rendundant 10 A power supply for Panel so I have used... Power Supply:lnput:120/230VAC;Output:24VDC/10A(6EP1 334 2AA01)- 2 No. DIODE(6EP1961-3BA21) - 1 no. is it right... also you send but I got nothing...I have attached snapshot what I got pages of this link... Please send me proper link... AttachmentLink.zip (67 Downloads) |
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Rajkiran Patil |
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| 11/26/2012 8:47 AM | |
Joined: 10/7/2005 Last visit: 9/17/2024 Posts: 3020 Rating:
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Hello RAJKIRAN not too sure why your search didn't reveal the FAQ below, butit may interest you too: Parallel connection of same type of power supplies for redundant operation I hope this helps |
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Cheers |
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