Hello Forums!
This is my first question on here!
I have a very large (2000hp+) motor that requires 690V. We are in the early design process and the motor HAS to be 690V.
It's a non-UL voltage and is sadly just above the cut-off for low voltage into medium voltage.
So it seems that I have to use all medium voltage equipment (disconnects, cabling, ext). Made worse by the fact I need to keep it shielded (going to be a very expensive cable). Do I have to use everything rated 5kV?
Is there some kind of IEC equipment that I can use?
I mean there has be equipment built for the purpose of large ampacity 690V loads, where can I get it?
Can I use this equipment in the States?
What code issues will I run into? Or do I just do everything based on voltage ranges? (For example, 600-5000v is a certain safe working clearance. However, piece of enclosure equipment {I think} that is above 600V needs to be certain size and treated like medium voltage)
Can some of the medium voltage rules be 'softened' up, or I have to design all nearly all components as if they were up too 5000V.
Thanks!
This is my first question on here!
I have a very large (2000hp+) motor that requires 690V. We are in the early design process and the motor HAS to be 690V.
It's a non-UL voltage and is sadly just above the cut-off for low voltage into medium voltage.
So it seems that I have to use all medium voltage equipment (disconnects, cabling, ext). Made worse by the fact I need to keep it shielded (going to be a very expensive cable). Do I have to use everything rated 5kV?
Is there some kind of IEC equipment that I can use?
I mean there has be equipment built for the purpose of large ampacity 690V loads, where can I get it?
Can I use this equipment in the States?
What code issues will I run into? Or do I just do everything based on voltage ranges? (For example, 600-5000v is a certain safe working clearance. However, piece of enclosure equipment {I think} that is above 600V needs to be certain size and treated like medium voltage)
Can some of the medium voltage rules be 'softened' up, or I have to design all nearly all components as if they were up too 5000V.
Thanks!