Ampacity of bus bar sections
Ampacity of bus bar sections
(OP)
Is it possible, or ever practiced in the real world to push more MVA through a substation than its bus bar rating? Ie, if I have a 5000amp rated 345kv bus, is my substation rating limited to 3000MW, or can I push more power through it by alternating incoming and outgoing load elements such that any bus section is only carrying the resultant phase angle differences? Ie 6000MW+ power flo in/out. In such a case is bus bar protection necessary and if so how would I go about doing it?






RE: Ampacity of bus bar sections
At 6000 MW what is the MVA? What is the actual current in the bus?
At what temperature is the bus current rating stated?
Is it possible to re-rate the bus at a higher temperature?
Bill
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Jimmy Carter
RE: Ampacity of bus bar sections
RE: Ampacity of bus bar sections
Station can not be re-rated, 5000amp is the final continuous number. Anything over that goes into LTE and STE action limits.
RE: Ampacity of bus bar sections
RE: Ampacity of bus bar sections
RE: Ampacity of bus bar sections
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