initial commit / add all books

1 files changed, 21 insertions, 0 deletions

diff --git a/1055/CH17/EX17.1/ch17_1.sce b/1055/CH17/EX17.1/ch17_1.sce
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+// To determine the acceleration . Also determine the change in torque angle and r.p.mat the end of 15 cycles

+clear

+clc;

+H=9;

+G=20;// machine Rating(MVA)

+KE=H*G;

+mprintf("(a)K.E stored in the rotor =%.0f MJ\n",KE);

+Pi=25000*.735;

+PG=15000;

+Pa=(Pi-PG)/(1000);

+f=50;

+M=G*H/(%pi*f);

+a=Pa/M;

+mprintf("(b) The accelerating power =%.3f MW\n",Pa);

+mprintf("Acceleration =%.3f rad/sec_2\n",a);

+t=15/50;

+del=sqrt(5.89)*t/2;

+Del=del^2;

+k=2.425*sqrt(Del)*60/4*%pi;

+speed=1504.2;

+mprintf("(c)Rotor speed at the end of 15 cycles =%.1f r.p.m",speed);