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| Protective Device Bolted Fault & Arcing Fault Current Eqn https://brainfiller.com/arcflashforum/viewtopic.php?f=4&t=4423 |
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| Author: | Namgay Tshering [ Thu Aug 31, 2017 2:18 pm ] |
| Post subject: | Protective Device Bolted Fault & Arcing Fault Current Eqn |
From: Iabr=Ia*IBbr/IB; Iabr: is arcing fault current through each protective device IBbr: is Bolted Fault Current through each protective device Ia: is bus arcing fault current IB: is bus bolted fault current We can easily compute Ia & IB by IEEE 1584 equations, but I could not find Iabr & IBbr from the above equations. There are two unknown parameters in one equation. Can anyone share a complete equation, if you have please. You may find it in Annex D of CD ROM if you have a copy of IEEE 1584 2002 edition. |
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