ETAP - Power Grid (Network Feeder)
ETAP - Power Grid (Network Feeder)
(OP)
I am unsure how to find the value of X/R=10 as figure shown below
http://tinypic.com/view.php?pic=ekjfqr&s=6
My queston is if Network Feeder = 500 MVAsc and 33KV , how can we find the Value X/R so it shows 10
Any information which you could supply would be very welcome
Jonner






RE: ETAP - Power Grid (Network Feeder)
RE: ETAP - Power Grid (Network Feeder)
I got the 500 MVAsc , X/R=10 fron Example IEC ETAP 700 for practice
I am not sure it's like equipment rating
but,
"Short Circuit Calculation Handbook" By Wayne L. Carey
or
www.msha.gov/TECHSUPP/ACC/shortcircuit/ShortCircui...
said about UTILITY:
The first step in analyzing a power system is to get the data for the power available at the site, the utility data. This data can be obtained from the Power Company. The data needed is the line to line voltage (VLL), short-circuit kVA (kVASC), and X/R.
The Handbook above said we need Vll, KVAsc and X/R from Power Company
and
you said I need to get X/R from the utility
Is that mean I have to ask The Power Company or Utility to get the X/R ??
RE: ETAP - Power Grid (Network Feeder)
Yes.
RE: ETAP - Power Grid (Network Feeder)
RE: ETAP - Power Grid (Network Feeder)