diff options
Diffstat (limited to '1445/CH8/EX8.38/Ex8_38.sce')
| -rw-r--r-- | 1445/CH8/EX8.38/Ex8_38.sce | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/1445/CH8/EX8.38/Ex8_38.sce b/1445/CH8/EX8.38/Ex8_38.sce index ce64d0ef1..15802d568 100644 --- a/1445/CH8/EX8.38/Ex8_38.sce +++ b/1445/CH8/EX8.38/Ex8_38.sce @@ -1,10 +1,10 @@ //CHAPTER 8- DIRECT CURRENT MACHINES //Example 38 +clc; disp("CHAPTER 8"); disp("EXAMPLE 38"); -//215 V DC machine supplying 5kW at 1000 rpm //VARIABLE INITIALIZATION v_t=215; //in Volts r_a=0.4; //in Ohms @@ -15,13 +15,13 @@ ratio=1.1; //according to the solution, Φ_b:Φ_a=1.1 //SOLUTION //As generator -I_ag=p/v_t; // as generator induced current -E_a=v_t+(I_ag*r_a); // induced emf +I_ag=p/v_t; +E_a=v_t+(I_ag*r_a); //As motor -I_am=p/v_t; // current as motor -E_b=v_t-(I_am*r_a); // back emf -N_m=(1/ratio)*N_g*(E_b/E_a); // speed of machine +I_am=p/v_t; +E_b=v_t-(I_am*r_a); +N_m=(1/ratio)*N_g*(E_b/E_a); N_m=round(N_m); //to round off the value disp(sprintf("The speed of the machine as motor is %d rpm",N_m)); |