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Diffstat (limited to '371/CH16/EX16.7/16_7.sci')
| -rwxr-xr-x | 371/CH16/EX16.7/16_7.sci | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/371/CH16/EX16.7/16_7.sci b/371/CH16/EX16.7/16_7.sci new file mode 100755 index 000000000..3ea7982d0 --- /dev/null +++ b/371/CH16/EX16.7/16_7.sci @@ -0,0 +1,19 @@ +//Faults and Protection//
+//Example 16.7//
+V=415;//ac input voltage in volts//
+Vdc=440;//supplied voltage to dc motor in volts//
+Vh=30;//each selenium plate handling voltage in volts//
+N=Vdc/Vh;//number of plates in series in each direction in the ckt//
+N=15;
+printf('number of plates in each branch=N=%f',N);
+Nt=3*N;//total number of plates in series in the circuit//
+printf('\ntotal number of plates=Nt=%f',Nt);
+Ipa=136;//peak armature current in amperes//
+T=30;//time constant in milliseconds//
+R=0.175;//Armature resistance in Ohms//
+L=T*R;//Armature circuit Inductance in milliHenry//
+printf('\nArmature circuit inductance=L=%fmH',L);
+Es=0.5*L*Ipa^2*10^-3;//Energy stored in armature circuit in wattsec//
+printf('\nEnergy stored in armature circuit=Es=%fwattsec',Es);
+Ed=Es/N;//Energy dissipated per plate in wattsec//
+printf('\nEnergy dissipated per plate=Ed=%fwattsec',Ed);
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