diff options
Diffstat (limited to '1445/CH8/EX8.25/Ex8_25.sce')
| -rw-r--r-- | 1445/CH8/EX8.25/Ex8_25.sce | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/1445/CH8/EX8.25/Ex8_25.sce b/1445/CH8/EX8.25/Ex8_25.sce index a9088f41b..adf7f1898 100644 --- a/1445/CH8/EX8.25/Ex8_25.sce +++ b/1445/CH8/EX8.25/Ex8_25.sce @@ -1,10 +1,11 @@ //CHAPTER 8- DIRECT CURRENT MACHINES //Example 25 +clc; disp("CHAPTER 8"); disp("EXAMPLE 25"); -//24 slot 2 pole DC machine with 18 turns per coil + //VARIABLE INITIALIZATION slot=24; //number of slots P=2; //number of poles @@ -15,28 +16,28 @@ rad=10/100; //radius in meters w=183.2; //angular velocity in rad/s //SOLUTION -A=2; // number of parallel paths +A=2; Z=slot*P*N; //total number of conductors -ar1=(2*%pi*rad*l)/P; // actual pole area +ar1=(2*%pi*rad*l)/P; ar2=ar1*0.8; //since the magnetic poles 80% of the armature periphery phi=B*ar2; //effective flux per pole //solution (a) E_a=(P*Z*phi*w)/(2*%pi*A); -disp(sprintf("(a) The induced emf is %.1f V",E_a)); +disp(sprintf("(a) The induced emf is %f V",E_a)); //solution (b) -coil=slot/P; //number of coils in each path = slots/path -E_coil=E_a/coil; //induced emf per coil -disp(sprintf("(b) The induced emf per coil is %.2f V",E_coil)); +coil=slot/P; //number of coils in each path +E_coil=E_a/coil; +disp(sprintf("(b) The induced emf per coil is %f V",E_coil)); //solution (c) -E_turn=E_coil/N; //emf induced per turn -disp(sprintf("(c) The induced emf per turn is %.2f V",E_turn)); +E_turn=E_coil/N; +disp(sprintf("(c) The induced emf per turn is %f V",E_turn)); //solution (d) -E_cond=E_turn/A; // emf induced per conductor -disp(sprintf("(d) The induced emf per conductor is %.3f V",E_cond)); +E_cond=E_turn/A; +disp(sprintf("(d) The induced emf per conductor is %f V",E_cond)); //The answers are slightly different due to the precision of floating point numbers |