I’m pretty sure the answer can be found here … https://en.wikipedia.org/wiki/Per-unit_system
You have a system MVA base for your per unit conversions and you can use 230 kV as the voltage base for these lines. Ray On Oct 10, 2014, at 4:17 AM, Zeya Aung [11547809d] <[email protected]> wrote: > Hi all > > I need help to convert my real case line parameters to the branch data > format. Sample of real life data is given below. > > ** > TRANSMISSION LINES > NO NAME Line Length > km No. of > Circuit Positive Sequence > Resistance > R' (ohm/km) Reactance > X'(ohm/km) Capacitance > C'(uF/km) > 1 230kV-BELIN-THAPYAYWA-1 87.95 Double 0.03624 0.30153 0.011898 > 2 230kV-BELIN-THAPYAYWA-2 87.95 Double 0.03624 0.30153 0.011898 > 3 230kV-BELIN-OHNTAW-1 57.6 Double 0.04761 0.30652 0.011739 *** > > How can i turn it into the branch data format of Matpower with per unit > resistance etc? Using the appropriate transmission line model to calculate > the impedance (Z) and turn it into per unit? > > Please help.. > > --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > Disclaimer: > > > This message (including any attachments) contains confidential information > intended for a specific individual and purpose. If you are not the intended > recipient, you should delete this message and notify the sender and The Hong > Kong Polytechnic University (the University) immediately. Any disclosure, > copying, or distribution of this message, or the taking of any action based > on it, is strictly prohibited and may be unlawful. > > The University specifically denies any responsibility for the accuracy or > quality of information obtained through University E-mail Facilities. Any > views and opinions expressed are only those of the author(s) and do not > necessarily represent those of the University and the University accepts no > liability whatsoever for any losses or damages incurred or caused to any > party as a result of the use of such information. >
