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 --- 83/CH4/EX4.2/example_4_2.sce | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100755 83/CH4/EX4.2/example_4_2.sce (limited to '83/CH4/EX4.2/example_4_2.sce') diff --git a/83/CH4/EX4.2/example_4_2.sce b/83/CH4/EX4.2/example_4_2.sce new file mode 100755 index 000000000..31701dfc5 --- /dev/null +++ b/83/CH4/EX4.2/example_4_2.sce @@ -0,0 +1,43 @@ +//Chapter 4 +//Example 4.2 +//page 104 +// To draw the per unit reactance diagram when pu values are specified based on euipment rating +clear;clc; +mvab=30; kvb=11; //MVA base and KVA base are selected in the circuit of generator 1 + +gen1_mva=30; gen1_kv=10.5; gen1_x=0.435; //Generator No.1 details +gen2_mva=15; gen2_kv=6.6; gen2_x=0.413; //Generator No.2 details +gen3_mva=25; gen3_kv=6.6; gen3_x=0.3214; //Generator No.3 details + +t1_mva=15; t1_hv=33; t1_lv=11; t1_x=0.209; //Transformer T1 details +t2_mva=15; t2_hv=33; t2_lv=6.2; t2_x=0.220; //Transformer T1 details + +tl_x=20.5; //Transmission line recatance + +//Loads are neglected as said in the problem + +tl_pu=(tl_x*mvab)/t1_hv^2; +t1_pu=t1_x*(mvab/t1_mva); +t2_pu=t2_x*(mvab/t2_mva); +gen1_pu=gen1_x*(mvab/gen1_mva)*(gen1_kv/kvb)^2; +gen2_kv_base=t2_lv; +gen2_pu=gen2_x*(mvab/gen2_mva)*(gen2_kv/gen2_kv_base)^2; +gen3_kv_base=t2_lv; +gen3_pu=gen3_x*(mvab/gen3_mva)*(gen3_kv/gen3_kv_base)^2; + +//diplaying the results on console + +printf('Per unit impedance of the components of the given power system are as follows :\n\n'); + +printf('Transmission line: %0.3f \n\n',tl_pu); + +printf('Transformer T1: %0.3f \n\n',t1_pu); + +printf('Transformer T2: %0.3f \n\n',t2_pu); + +printf('Generator 1: %0.3f \n\n',gen1_pu); + +printf('Generator 2: %0.3f \n\n',gen2_pu); + +printf('Generator 3: %0.3f \n\n',gen3_pu); + -- cgit