First time here? We are a friendly community of Power Systems Engineers. Check out the FAQ!

Results of the percentage load of three-winding transformers with the awndreal() function.

waltterval_again
26 ●1 ●1 ●3

I run this funtion:

ierr, rarray = psspy.awndreal(sid=0, owner=1, ties=3, flag=3, entry=1, string=['PCTRATEA'])

I get a numpy array with a number of values that is equal to 3 times the number of transformers that I have, one for each winding.

I do not understand the order of the results I get, not if it is sorted in ascending order, taking into account the bus number of the first winding, or if it is sorted by transformer name, etc.

Could someone explain to me how this function presents its results?

I'm working with 35.5.2 version.

add a comment

1 answer

Sort by » oldest newest most voted

answered Apr 19 '3

perolofl

3452 ●1 ●9 ●20

Option ENTRY defines the order. 1 = winding 1 bus #, 2 = transformer name.

Use awndint to get the bus numbers and winding number.

An example:

ierr, iarray = psspy.awndint(-1,owner=1, ties=3, flag=3, entry=1, string=['WIND1NUMBER', 'WIND2NUMBER', 'WIND3NUMBER', 'WNDNUM'])
ierr, rarray = psspy.awndreal(-1, owner=1, ties=3, flag=3, entry=1, string=['PCTRATEA'])

data = iarray + rarray

for ibus, jbus, kbus, wind, pcta in zip(*data):
    print(ibus, jbus, kbus, wind, pcta)

link

Comments

Thanks, I will try it.

waltterval_again (Aug 25 '3)

add a comment

Question Tools

1 follower

Stats

Asked: Apr 18 '3

Seen: 184 times

Last updated: Apr 19 '23

Results of the percentage load of three-winding transformers with the awndreal() function.

1 answer

Comments

Your Answer

Question Tools

Stats

Related questions