Hi
Help please with the adiabatic
I am doing a small design for my course and I can't figure it out. Any advice will be appreciated.
Ring Final
Ib: 30A
In: 32A
It: 20A
Iz: 21A 2.5T&E method 100
V: 229V
Ze- 0.22 Ohm
L: 26m
So r1+r2 = 19.51*26*1.2/1000=0.6 Ohm.
R1+R2 = 0.6/4 = 0.15ohm
Zs=0.15+0.22=0.37ohm
Ia=229/0.37=618A
t=0.1
k=115
and then I get s=1.69mm2 for the cpc which doesn't work for the 2.5,1.5 t&e.
What am I doing wrong
This is quite a standard ring only 26m how can it be that the cpc isn't adequate.
Many thank
Help please with the adiabatic
I am doing a small design for my course and I can't figure it out. Any advice will be appreciated.
Ring Final
Ib: 30A
In: 32A
It: 20A
Iz: 21A 2.5T&E method 100
V: 229V
Ze- 0.22 Ohm
L: 26m
So r1+r2 = 19.51*26*1.2/1000=0.6 Ohm.
R1+R2 = 0.6/4 = 0.15ohm
Zs=0.15+0.22=0.37ohm
Ia=229/0.37=618A
t=0.1
k=115
and then I get s=1.69mm2 for the cpc which doesn't work for the 2.5,1.5 t&e.
What am I doing wrong
This is quite a standard ring only 26m how can it be that the cpc isn't adequate.
Many thank
