From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 695/CH2/EX2.23/Ex2_23.sce | 28 ++++++++++++++++++++++++++++ 695/CH2/EX2.23/Ex2_23.txt | 28 ++++++++++++++++++++++++++++ 695/CH2/EX2.23/R2_23.txt | 20 ++++++++++++++++++++ 3 files changed, 76 insertions(+) create mode 100755 695/CH2/EX2.23/Ex2_23.sce create mode 100755 695/CH2/EX2.23/Ex2_23.txt create mode 100755 695/CH2/EX2.23/R2_23.txt (limited to '695/CH2/EX2.23') diff --git a/695/CH2/EX2.23/Ex2_23.sce b/695/CH2/EX2.23/Ex2_23.sce new file mode 100755 index 000000000..1a2c72ecc --- /dev/null +++ b/695/CH2/EX2.23/Ex2_23.sce @@ -0,0 +1,28 @@ +//Caption:Determine the (a)total torque(b)useful torque(c)useful flux per pole(d)rotational losses(e)efficiency +//Exa:2.23 +clc; +clear; +close; +P=4;//no of poles +Z=560;//no of conductors +A=2; +V=250;//in volts +P_o=10*10^3;//in watts +R_a=0.2;//in ohms +I_f=1;//in amperes +I_a=60;//in amperes +N=1000;//in rpm +V_b=1*2//in volts +E=V-(I_a*R_a)-V_b;//in volts +T=60*E*I_a/(2*%pi*N);//in Newton-meter +disp(T,'(a) Total torque (in Newton-meter)='); +T_useful=P_o*60/(2*%pi*N); +disp(T_useful,'(b) Useful torque (in Newton-meter)='); +Phy=60*E*A/(N*P*Z); +disp(Phy,'(c) Useful flux per pole (in Weber)='); +P_d=(V*I_a)-((I_a^2)*R_a)-(V_b*I_a);//in Watts +P_rot=P_d-P_o; +disp(P_rot,'(d) Rotational losses (in Watts)='); +P_i=V*(I_a+I_f);//in Watts +Eff=P_o*100/P_i; +disp(Eff,'(e) Efficiency (in %)='); \ No newline at end of file diff --git a/695/CH2/EX2.23/Ex2_23.txt b/695/CH2/EX2.23/Ex2_23.txt new file mode 100755 index 000000000..1a2c72ecc --- /dev/null +++ b/695/CH2/EX2.23/Ex2_23.txt @@ -0,0 +1,28 @@ +//Caption:Determine the (a)total torque(b)useful torque(c)useful flux per pole(d)rotational losses(e)efficiency +//Exa:2.23 +clc; +clear; +close; +P=4;//no of poles +Z=560;//no of conductors +A=2; +V=250;//in volts +P_o=10*10^3;//in watts +R_a=0.2;//in ohms +I_f=1;//in amperes +I_a=60;//in amperes +N=1000;//in rpm +V_b=1*2//in volts +E=V-(I_a*R_a)-V_b;//in volts +T=60*E*I_a/(2*%pi*N);//in Newton-meter +disp(T,'(a) Total torque (in Newton-meter)='); +T_useful=P_o*60/(2*%pi*N); +disp(T_useful,'(b) Useful torque (in Newton-meter)='); +Phy=60*E*A/(N*P*Z); +disp(Phy,'(c) Useful flux per pole (in Weber)='); +P_d=(V*I_a)-((I_a^2)*R_a)-(V_b*I_a);//in Watts +P_rot=P_d-P_o; +disp(P_rot,'(d) Rotational losses (in Watts)='); +P_i=V*(I_a+I_f);//in Watts +Eff=P_o*100/P_i; +disp(Eff,'(e) Efficiency (in %)='); \ No newline at end of file diff --git a/695/CH2/EX2.23/R2_23.txt b/695/CH2/EX2.23/R2_23.txt new file mode 100755 index 000000000..9c0984a97 --- /dev/null +++ b/695/CH2/EX2.23/R2_23.txt @@ -0,0 +1,20 @@ + (a) Total torque (in Newton-meter)= + + 135.21804 + + (b) Useful torque (in Newton-meter)= + + 95.492966 + + (c) Useful flux per pole (in Weber)= + + 0.0126429 + + (d) Rotational losses (in Watts)= + + 4160. + + (e) Efficiency (in %)= + + 65.57377 + \ No newline at end of file -- cgit