VFD Contribution to Short Circuit Study
VFD Contribution to Short Circuit Study
(OP)
Does anyone know the recommended industry standard for VFD motor contribution back to the system when performing a short circuit study?
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VFD Contribution to Short Circuit Study
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RE: VFD Contribution to Short Circuit Study
Mike
RE: VFD Contribution to Short Circuit Study
RE: VFD Contribution to Short Circuit Study
RE: VFD Contribution to Short Circuit Study
RE: VFD Contribution to Short Circuit Study
RE: VFD Contribution to Short Circuit Study
In one email you mentioned bypass contactors and in one you said bypass capacitors. Which do you mean?
RE: VFD Contribution to Short Circuit Study
Bypass contactors allow the possibility of the motor being connected to the line directly, therefore adding them back into the equation. Regenrative drives can also be thought of as contributors, but you get to add anyinductors (reactors or bus chokes) when considering it.
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RE: VFD Contribution to Short Circuit Study
RE: VFD Contribution to Short Circuit Study
How true.... especially correctly spelled wrong words.... and you see them first after you have pressed the "submit post" button
RE: VFD Contribution to Short Circuit Study