Training Course in Short Circuit Analysis
66
Rake Equivalent Consider the matrix voltage equation
1.0 1.0 = 1.0
r I1 r I2 r I3
Z11 Z12 Z13 Z12 Z22 Z23 Z13 Z23 Z33
1.0
Suppose we are asked to find a circuit that satisfies the matrix equation.
+
Z11
One possible equivalent r circuit is shown. This circuit I 1 is called a rake-equivalent. U. P. National Engineering Center National Electrification Administration
-
Z12 Z22
r I2
Z23 Z33 Z13 r
I3
Competency Training & Certification Program in Electric Power Distribution System Engineering