blob: 85ec3cb21999e8e4c0ffbbd654a244963b35c361 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
//To determine the starting torque in terms of full load torque
clc;
clear;
sfl=4/100;
Rir=5; // Ratio of starting current to the full load current at rated voltage
x=70.7/100; // Auto transformer tapping
Rsd=((Rir)^2)*sfl/3; // Ratio of the starting load to full load torque for a star -delta starter
Ra=((x*Rir)^2)*sfl; // Ratio of the starting load to full load torque for an 70.7% tapped auto transformer
printf('The starting torque in terms of full load torque by \n')
printf('i) Star-Delta starter = %g Tfl \n',Rsd)
printf('ii) An auto-tranformer starter with 70.7 percent tapping = %g Tfl \n',Ra)
|