diff options
Diffstat (limited to '1445/CH8/EX8.27/Ex8_27.sce')
| -rw-r--r-- | 1445/CH8/EX8.27/Ex8_27.sce | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/1445/CH8/EX8.27/Ex8_27.sce b/1445/CH8/EX8.27/Ex8_27.sce index e6422663f..7dbf5ed65 100644 --- a/1445/CH8/EX8.27/Ex8_27.sce +++ b/1445/CH8/EX8.27/Ex8_27.sce @@ -1,10 +1,11 @@ //CHAPTER 8- DIRECT CURRENT MACHINES //Example 27 +clc; disp("CHAPTER 8"); disp("EXAMPLE 27"); -//DC series motor, 200V DC motor + //VARIABLE INITIALIZATION v_t=200; //in volts r_a=0.06; //in Ohms @@ -14,13 +15,12 @@ p_i=20*1000; //in Watts //SOLUTION //solution (a) -//Il=Ia=Ise= Pinput/Vt -I_a=p_i/v_t; // armature current -E_b=v_t-I_a*(r_a+r_se); // back emf +I_a=p_i/v_t; +E_b=v_t-I_a*(r_a+r_se); disp(sprintf("(a) The counter emf of the motor is %d V",E_b)); //solution (b) -p_a=E_b*I_a; // power developed in armature +p_a=E_b*I_a; p_a=p_a/1000; //from W to kW disp(sprintf("(b) The power developed in the armature is %d kW",p_a)); |