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Diffstat (limited to '1445/CH8/EX8.38/ch8_ex_38.sce')
-rw-r--r-- | 1445/CH8/EX8.38/ch8_ex_38.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/1445/CH8/EX8.38/ch8_ex_38.sce b/1445/CH8/EX8.38/ch8_ex_38.sce new file mode 100644 index 000000000..96d7543dc --- /dev/null +++ b/1445/CH8/EX8.38/ch8_ex_38.sce @@ -0,0 +1,30 @@ +//CHAPTER 8- DIRECT CURRENT MACHINES +//Example 38 + +disp("CHAPTER 8"); +disp("EXAMPLE 38"); + +//VARIABLE INITIALIZATION +v_t=215; //in Volts +r_a=0.4; //in Ohms +p=5*1000; //in Watts +N_g=1000; //speed as generator in rpm +ratio=1.1; //according to the solution, Φ_b:Φ_a=1.1 + +//SOLUTION + +//As generator +I_ag=p/v_t; +E_a=v_t+(I_ag*r_a); + +//As motor +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)); + +//END + + + |