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 --- 2777/CH7/EX7.9/Ex7_9.sce | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100755 2777/CH7/EX7.9/Ex7_9.sce (limited to '2777/CH7/EX7.9/Ex7_9.sce') diff --git a/2777/CH7/EX7.9/Ex7_9.sce b/2777/CH7/EX7.9/Ex7_9.sce new file mode 100755 index 000000000..2afaf6b61 --- /dev/null +++ b/2777/CH7/EX7.9/Ex7_9.sce @@ -0,0 +1,32 @@ + +// ELECTRICAL MACHINES +// R.K.Srivastava +// First Impression 2011 +// CENGAGE LEARNING INDIA PVT. LTD + +// CHAPTER : 7 : SPECIAL MOTORS AND INTRODUCTION TO GENERALIZED MACHINE THEORY + +// EXAMPLE : 7.9 + +clear ; clc ; close ; // Clear the work space and console + + +// GIVEN DATA + +E2 = 100; // Per phase standstill EMF in Volts +Z2s = 0.025 + %i*0.08; // Rotor circuit impedance at standstill +E = 50; // Injected EMF in Volts + + +// CALCULATIONS + +I2 = 0; // Assuming Current is zero +s1 = (E/E2)+(I2*Z2s)/E2; // Slip when injected EMF is opposite to the E2 +s2 = (-E/E2)+(I2*Z2s)/E2; // Slip when injected EMF is phase with E2 + + +// DISPLAY RESULTS + +disp("EXAMPLE : 7.9: SOLUTION :-"); +printf("\n (a) Slip when injected EMF is opposite to the E2, s = %.1f \n",s1) +printf("\n (b) Slip when injected EMF is phase with E2, s = %.1f \n",s2) -- cgit