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 --- 833/CH11/EX11.6/Ex11_6.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100755 833/CH11/EX11.6/Ex11_6.txt (limited to '833/CH11/EX11.6/Ex11_6.txt') diff --git a/833/CH11/EX11.6/Ex11_6.txt b/833/CH11/EX11.6/Ex11_6.txt new file mode 100755 index 000000000..ec777b908 --- /dev/null +++ b/833/CH11/EX11.6/Ex11_6.txt @@ -0,0 +1,21 @@ +//Caption: Calculate (a)Speed at which mechanical power from rotor will be maximum (b)Maximum power +//Exa:11.6 +clc; +clear; +close; +p=4//Number of poles +f=50//Frequency(in hertz) +V=440//Supplied voltage to induction motor(in volts) +R_r=0.1//Rotor resistance per phase(in ohm) +X_r=0.8//Rotor reactance at standstill per phase(in ohm) +t=1.3//Ratio of stator turns per phase to rotor turns per phase +a=R_r/X_r +s=(-(a^2))+sqrt(1+(a^2)) +n_s=120*f/p +N=n_s*(1-s) +disp(N,'(a)Required speed(in r.p.m)=') +r=R_r*t +x=X_r*t +E=V/sqrt(3) +P_m=(3*s*(E^2)*r*(1-s))/((r^2)+((s^2)+(x^2))) +disp(P_m,'(b)Maximum power(in watts)=') \ No newline at end of file -- cgit