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2 Substations each feeding a switch panel within the same room.....

tonydon
Hi


I currently work at a site that has a 400A 3ph supply from one substation (on site)

I need to install another 200A 3ph supply from a different substation (also on site)


The original substation supplies a miniform panel in a switch room


Is there a problem installing a second separate miniform panel  from the second sub into the same switch room?


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  • 0
    How, is the second supply being metered or is it the standby generator substation? and if not; how can you be sure that the 2 source substations are on the same 11kV circuit.  Normally, there should be an interlock so that the 2 supplies are never run in parallel with an auto transfer if the main supply fails.and please do check the R<Y< B sequence with a rotascope if its 3 phase installation.
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  • 0
    How, is the second supply being metered or is it the standby generator substation? and if not; how can you be sure that the 2 source substations are on the same 11kV circuit.  Normally, there should be an interlock so that the 2 supplies are never run in parallel with an auto transfer if the main supply fails.and please do check the R<Y< B sequence with a rotascope if its 3 phase installation.
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