From 7bc77cb1ed33745c720952c92b3b2747c5cbf2df Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Sat, 3 Feb 2018 11:01:52 +0530 Subject: Added new code --- 3890/CH6/EX6.11/Ex6_11.sce | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 3890/CH6/EX6.11/Ex6_11.sce (limited to '3890/CH6/EX6.11/Ex6_11.sce') diff --git a/3890/CH6/EX6.11/Ex6_11.sce b/3890/CH6/EX6.11/Ex6_11.sce new file mode 100644 index 000000000..f642ee36c --- /dev/null +++ b/3890/CH6/EX6.11/Ex6_11.sce @@ -0,0 +1,37 @@ +//Electric machines and power systems by Syed A Nasar +//Publisher:Tata McGraw Hill +//Year: 2002 ; Edition - 7 +//Example 6.11 +//Scilab Version : 6.0.0 ; OS : Windows + +clc; +clear; + +p=25*10^3; //power rating in w +E=230; //generated voltage in v +N=1200; //speed in rpm +Ra=0.12; //armature resistance in ohm +Rf=100; //field resistance in ohm +Pme=300; //machanical loss in W +pml=200; //magnetic loss in w +At1=2500; //ampere turns per pole +At2=1500; //ampere turns per pole +va=200; //voltage in V +nf=1000; //number of turns in field winding + +Ia=p/va; +V=E-Ia*Ra; +Pout=V*Ia; +Pa=Ia^2*Ra; +If=At1/nf; +Pf=If^2*Rf; +pin=Pout+Pa+Pf+Pme+pml; +Eff=Pout/pin; +N1=(N*2*3.14)/60; //speed in rad/s +Tin=(pin-Pf)/N1; +Vreg=(E-V)*100/V; + +printf('armature terminal voltage is %f V\n',V) +printf('Effeciency is %f\n',Eff) +printf('Input torque is %f Nm\n',Tin) +printf('Voltage regulation is %f in percentage',Vreg) -- cgit